J/MNRAS/508/3877 Catalogue of white dwarfs in Gaia EDR3 (Gentile+, 2021)
A catalogue of white dwarfs in Gaia EDR3.
Gentile Fusillo N.P., Tremblay P.-E., Cukanovaite E., Vorontseva A.,
Lallement R., Hollands M., Gansicke B.T., Burdge K.B., McCleery J.,
Jordan S.
<Mon. Not. R. Astron. Soc., 508, 3877-3896 (2021)>
=2021MNRAS.508.3877G 2021MNRAS.508.3877G (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Stars, white dwarf
Keywords: catalogues - surveys - white dwarfs
Abstract:
We present a catalogue of white dwarf candidates selected from Gaia
Early Data Release 3 (EDR3). We applied several selection criteria in
absolute magnitude, colour, and Gaia quality flags to remove objects
with unreliable measurements while preserving most stars compatible
with the white dwarf locus in the Hertzsprung-Russell diagram. We then
used a sample of over 30000 spectroscopically confirmed white dwarfs
and contaminants from the Sloan Digital Sky Survey (SDSS) to map the
distribution of these objects in the Gaia absolute magnitude-colour
space. Finally, we adopt the same method presented in our previous
work on Gaia Data Release 2 (DR2) to calculate a probability of being
a white dwarf (PWD) for ~=1.3 million sources that passed our
quality selection. The PWD values can be used to select a sample of
≃359000 high-confidence white dwarf candidates. We calculated
stellar parameters (effective temperature, surface gravity, and mass)
for all these stars by fitting Gaia astrometry and photometry with
synthetic pure-H, pure-He, and mixed H-He atmospheric models. We
estimate an upper limit of 93 per cent for the overall completeness of
our catalogue for white dwarfs with G≥20mag and effective temperature
(Teff)>7000K, at high Galactic latitudes (|b|>20°). Alongside
the main catalogue we include a reduced proper motion extension
containing ~=10200 white dwarf candidates with unreliable parallax
measurements that could, however, be identified on the basis of their
proper motion. We also performed a cross-match of our catalogues with
SDSS Data Release 16 (DR16) spectroscopy and provide spectral
classification based on visual inspection for all resulting matches.
Description:
The main catalogue provides 1280266 stars selected from Gaia EDR3
with calculated probabilities of being a white dwarf (PWD). The PWD
values can used to reliably select high-confidence white dwarf
candidates with a flexible compromise between completeness and level
of potential contamination. As a generic guideline selecting objects
with PWD>0.75 recovers ~=359000 high -confidence white dwarf
candidates, 25632 of which have SDSS spectroscopy. ~=91 per cent of
these spectroscopic sources are confirmed white dwarfs, ~=1 per cent
are contaminant objects, ~=3 per cent are white dwarf-main sequence
binaries or cataclysmic variables, and the rest have unreliable
classification. We also provide a Reduced Proper Motion (RPM)
extension to the main catalogue which contains Gaia white dwarf
candidates with unreliable paralax measurement, but that could be
selected on the basis of their proper motion. This catalogue extension
also makes use of a flexible probability parameter (PHwd) and we
suggest to use PHwd>0.85 to select a reliable set of high-confidence
white dwarf candidates.
All Gaia sources in both catalogues have also been cross matched with
SDSS DR14 taking into account the difference in epoch of observation
and proper motions. Whether available we include SDSS ugriz
photometry. In a separate table we provide informations on all the
available SDSS spectra for the Gaia sources in the main catalogue.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
maincat.dat 1436 1280266 White dwarf main catalog
sdssspec.dat 501 41820 Gaia-SDSS spectroscopic sample
rpm_ext.dat 1078 113572 Reduced proper motion extension catalog
--------------------------------------------------------------------------------
See also:
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
Byte-by-byte Description of file: maincat.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- WDJname WD name (JHHMMSS.ss+DDMMSS.ss)
equinox and epoch 2000 (G1)
25- 43 I19 --- GaiaEDR3 Gaia EDR3 source_id (source_id)
45- 63 I19 --- GaiaDR2 ?=- Gaia DR2 source_id
(dr2sourceid)
65- 93 A29 --- EDR3Name GaiaEDR3 name
(Gaia EDR3 NNNNNNNNNNNNNNNNNNN)
95- 109 F15.11 deg RAdeg Gaia EDR3 Barycentric right
ascension (ICRS) at Ep=2016.0 (ra)
111- 118 F8.6 mas e_RAdeg Gaia EDR3 standard error on
right ascension,
eRA=eRA*cosDE (ra_error)
120- 134 F15.11 deg DEdeg Gaia EDR3 Barycentric declination
(ICRS) at Ep=2016.0 (dec)
136- 143 F8.6 mas e_DEdeg Gaia EDR3 standard error on
declination (dec_error)
145- 154 F10.4 mas Plx Gaia EDR3 Absolute stellar
parallax at Ep=2016.0 (parallax)
156- 161 F6.4 mas e_Plx Gaia EDR3 parallax error
(parallax_error)
163- 172 F10.4 --- RPlx Gaia EDR3 Parallax divided by its
standard error
(parallaxovererror)
174- 182 F9.6 --- ZPcor Zero point offset correction
(Lindegren et al.,
2020A&A...633A...2L 2020A&A...633A...2L)
(ZP_correction)
184- 191 F8.6 --- Pwd The probability of being a white
dwarf (Pwd)
193- 197 I5 --- density The number of Gaia sources in the
same ~= 50 arcsec sq. bin as
this object (density)
199- 217 I19 --- SolID Gaia EDR3 Solution ID (solution_id)
219- 228 I10 --- RandomI Gaia EDR3 Random index used to
select subsets (random_index)
230- 233 I4 yr Epoch Gaia EDR3 Reference epoch
(ref_epoch)
235- 243 F9.3 mas/yr PM Gaia EDR3 Total proper motion (pm)
245- 250 F6.4 mas/yr e_PM Gaia EDR3 Total proper motion error
(pm_error)
252- 260 F9.3 mas/yr pmRA Gaia EDR3 Proper motion in RA,
pmRA*cosDE (pmra)
262- 266 F5.3 mas/yr e_pmRA Gaia EDR3 Proper motion in RA error
(pmra_error)
268- 276 F9.3 mas/yr pmDE Gaia EDR3 Proper motion in DE
(pmdec)
278- 284 F7.4 mas/yr e_pmDE Gaia EDR3 Proper motion in DE error
(pmdec_error)
286- 292 F7.4 --- RADEcor [-1/1] Correlation between right
ascension and declination
(radeccorr)
294- 300 F7.4 --- RAPlxcor [-1/1]? Correlation between right
ascension and parallax
(raparallaxcorr)
302- 308 F7.4 --- RApmRAcor [-1/1]? Correlation between right
ascension and proper motion in
right ascension (rapmracorr)
310- 316 F7.4 --- RApmDEcor [-1/1]? Correlation between right
ascension and proper motion in
declination (rapmdeccorr)
318- 324 F7.4 --- DEPlxcor [-1/1]? Correlation between
declination and parallax
(decparallaxcorr)
326- 332 F7.4 --- DEpmRAcor [-1/1]? Correlation between
declination and proper motion in
right ascension (decpmracorr)
334- 340 F7.4 --- DEpmDEcor [-1/1]? Correlation between
declination and proper motion in
declination (decpmdeccorr)
342- 348 F7.4 --- PlxpmRAcor [-1/1]? Correlation between parallax
and proper motion in right
ascension (parallaxpmracorr)
350- 356 F7.4 --- PlxpmDEcor [-1/1]? Correlation between parallax
and proper motion in declination
(parallaxpmdeccorr)
358- 364 F7.4 --- pmRApmDEcor [-1/1]? Correlation between proper
motion in right ascension and
proper motion in declination
(pmrapmdeccorr)
366- 369 I4 --- NAL Total number of observations AL
(astrometricnobs_al)
371- 373 I3 --- NAC Total number of observations AC
(astrometricnobs_ac)
375- 378 I4 --- NgAL Number of good observations AL
(astrometricngoodobsal)
380- 382 I3 --- NbAL Number of bad observations AL
(astrometricnbadobsal)
384- 392 F9.4 --- gofAL Goodness of fit statistic of model
wrt along-scan observations
(astrometricgofal)
394- 406 F13.2 --- chi2AL AL chi-square value
(astrometricchi2al)
408- 416 F9.6 mas epsi Excess noise of the source
(astrometricexcessnoise)
418- 429 F12.6 --- sepsi Significance of excess noise
(astrometricexcessnoise_sig)
431- 432 I2 --- Solved Which parameters have been solved
for? (astrometricparamssolved)
434 I1 --- APF Primary or secondary
(astrometricprimaryflag)
436- 442 F7.5 um-1 nueff ?=- Effective wavenumber of the
source used in the astrometric
solution
(nueffusedinastrometry)
444- 452 F9.6 um pscol ?=- Astrometrically estimated
pseudocolour of the source
(pseudocolour)
454- 461 F8.6 um e_pscol ?=- Standard error of the
pseudocolour of the source
(pseudocolour_error)
463- 471 F9.6 --- RApscolCorr [-1/1]?=- Correlation between right
ascension and pseudocolour
(rapseudocolourcorr)
473- 481 F9.6 --- DEpscolCorr [-1/1]?=- Correlation between
declination and pseudocolour
(decpseudocolourcorr)
483- 491 F9.6 --- PlxpscolCorr [-1/1]?=- Correlation between
parallax and pseudocolour
(parallaxpseudocolourcorr)
493- 501 F9.6 --- pmRApscolCorr [-1/1]?=- Correlation between proper
motion in right ascension and
pseudocolour
(pmrapseudocolourcorr)
503- 511 F9.6 --- pmDEpscolCorr [-1/1]?=- Correlation between proper
motion in declination and
pseudocolour
(pmdecpseudocolourcorr)
513- 515 I3 --- MatchObsA Matched FOV transits used in the
AGIS solution
(astrometricmatchedtransits)
517- 518 I2 --- Nper Number of visibility periods used in
Astrometric solution
(visibilityperiodsused)
520- 527 F8.6 mas amax The longest semi-major axis of the
-5--10 error ellipsoid
(astrometricsigma5dmax)
529- 531 I3 --- MatchObs The total number of field-of-view
transits matched to this source
(matched_transits)
533- 535 I3 --- NewMatchObs The number of transits newly
incorporated into an existing
source in the current cycle
(newmatchedtransits)
537- 538 I2 --- MatchObsrm The number of transits removed from
an existing source in the current
cycle (matchedtransitsremoved)
540- 547 F8.6 --- IPDgofha Amplitude of the IPD GoF versus
position angle of scan
(ipdgofharmonic_amplitude)
549- 558 F10.6 --- IPDgofhp Phase of the IPD GoF versus position
angle of scan
(ipdgofharmonic_phase)
560- 561 I2 --- IPDfmp Percent of successful-IPD windows
with more than one peak
(ipdfracmulti_peak)
563- 564 I2 --- IPDfow Percent of transits with truncated
windows or multiple gate
(ipdfracodd_win)
566- 574 F9.6 --- RUWE Renormalised unit weight error
(ruwe)
576- 583 F8.6 --- SDSk1 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k1)
585- 592 F8.6 --- SDSk2 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k2)
594- 601 F8.6 --- SDSk3 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k3)
603- 610 F8.6 --- SDSk4 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k4)
612- 622 F11.6 --- SDMk1 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k1)
624- 633 F10.6 --- SDMk2 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k2)
635- 644 F10.6 --- SDMk3 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k3)
646- 655 F10.6 --- SDMk4 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k4)
657 I1 --- Dup Source with multiple source
identifiers (duplicated_source)
659- 662 I4 --- o_Gmag Number of observations (CCD
transits) that contributed to the
G mean flux and mean flux error
(photgn_obs)
664- 674 E11.5 e-/s FG ?=- Mean flux in the G-band
(photgmean_flux)
676- 686 E11.5 e-/s e_FG ?=- Standard deviation of the G-band
fluxes divided by sqrt(photGNObs)
(photgmeanfluxerror)
688- 696 F9.3 --- RFG ?=- Mean flux in the G-band divided
by its error
(photgmeanfluxover_error)
698- 704 F7.4 mag Gmag G-band mean magnitude (Vega)
(photgmean_mag)
706- 711 F6.4 mag e_Gmag ?=- Standard error of G-band mean
magnitude (Vega)
(photgmeanmagerror)
713- 723 E11.5 mag FGCorr Calibration corrected G-band mean
flux
(photbprpexcessfactor_corrected)
725- 733 F9.6 mag GmagCorr Calibration corrected G magnitude
(photgmeanmagcorrected)
735- 743 F9.7 mag e_GmagCorr Standard error of calibration
corrected G magnitude
(photgmeanmagerror_corrected)
745- 747 I3 --- o_BPmag Number of observations contributing
to BP photometry (photbpn_obs)
749- 759 E11.5 e-/s FBP Mean flux in the integrated BP band
(photbpmean_flux)
761- 771 E11.5 e-/s e_FBP Error on the integrated BP mean flux
(photbpmeanfluxerror)
773- 781 F9.3 --- RFBP Integrated BP mean flux divided by
its error
(photbpmeanfluxover_error)
783- 789 F7.4 mag BPmag Integrated BP mean magnitude (Vega)
(photbpmean_mag)
791- 798 F8.6 mag e_BPmag ?=- Standard error of BP mean
magnitude (Vega)
(photbpmeanmagerror)
800- 802 I3 --- o_RPmag Number of observations (CCD
transits) that contributed to the
integrated RP mean flux and mean
flux error (photrpn_obs)
804- 814 E11.5 e-/s FRP ?=- Mean flux in the integrated RP
band (photrpmean_flux)
816- 826 E11.5 e-/s e_FRP Error on the integrated RP mean flux
(photrpmeanfluxerror)
828- 836 F9.3 --- RFRP Integrated RP mean flux divided by
its error
(photrpmeanfluxover_error)
838- 844 F7.4 mag RPmag Integrated RP mean magnitude (Vega)
(photrpmean_mag)
846- 853 F8.6 mag e_RPmag Standard error of RP mean magnitude
(Vega) (photrpmeanmagerror)
855- 856 I2 --- NBPcont Number of BP contaminated transits
(photbpncontaminatedtransits)
858- 860 I3 --- NBPblend Number of BP blended transits
(photbpnblendedtransits)
862- 863 I2 --- NRPcont Number of RP contaminated transits
(photrpncontaminatedtransits)
865- 867 I3 --- NRPblend Number of RP blended transits
(photrpnblendedtransits)
869 I1 --- Mode Photometry processing mode
(photprocmode)
871- 878 F8.6 --- E(BP/RP) BP/RP excess factor
(photbprpexcessfactor)
880- 885 F6.3 --- E(BP/RP)Corr BP/RP excess factor corrected for
colour dependence (Riello et al.,
2021A&A...649A...3R 2021A&A...649A...3R,
Cat. J/A+A/649/A3)
887- 894 F8.5 mag GMAG Absolute G magnitude (absG)
896- 904 F9.6 mag BP-RP BP-RP colour (bp_rp)
906- 914 F9.6 mag BP-G BP-G colour (bp_g)
916- 924 F9.6 mag G-RP G-RP colour (g_rp)
926 A1 --- RV [-] dr2radialvelocity (not used)
928 A1 --- e_RV [-] dr2radialvelocity_error
(not used)
930 A1 --- o_RV [0] dr2rvnb_transits (not used)
932 A1 --- Teff [-] dr2rvtemplate_teff (not used)
934 A1 --- logg [-] dr2rvtemplate_logg (not used)
936 A1 --- [Fe/H] [-] dr2rvtemplatefeh (not used)
938- 951 F14.10 deg GLON Galactic longitude (l)
953- 966 F14.10 deg GLAT Galactic latitude (b)
968- 981 F14.10 deg ELON Ecliptic longitude (ecl_lon)
983- 996 F14.10 deg ELAT Ecliptic latitude (ecl_lat)
998-1004 F7.3 --- ExFluxErr Metric for source photometric
variability (excessfluxerror)
1006 I1 --- brNflag [0/1] If 1 it indicates the presence
of a source 5 mag brighter than the
target in the G-band within 5"
(brightNflag)
1008-1012 F5.3 mag meanAV Mean extinction value derived from
3D reddening maps (meanAV)
1014-1018 F5.3 mag minAV Extinction value derived from 3D
reddening maps using -1sigma EDR3
distance (minAV)
1020-1024 F5.3 mag maxAV Extinction value derived from 3D
reddening maps using +1sigma EDR3
distance (maxAV)
1026 I1 --- FlagExt Flag (flag_ext) (1)
1028-1036 F9.2 K TeffH ?=- Effective temperature from
fitting the dereddened G, BP, and
RP absolute fluxes with pure-H
model atmospheres (teff_H)
1038-1045 F8.2 K e_TeffH ?=- Uncertainty on teff_H (eteff_H)
1047-1054 F8.6 [cm/s2] loggH ?=- Log of surface gravity from
fitting the dereddened G, BP, and
RP absolute fluxes with pure-H
model atmospheres (logg_H)
1056-1063 F8.6 [cm/s2] e_loggH ?=- Uncertainty on logg_H (elogg_H)
1065-1072 F8.6 Msun MassH ?=- Stellar mass resulting from the
adopted mass-radius relation and
best fit parameters (mass_H)
1074-1081 F8.6 Msun e_MassH ?=- Uncertainty on mass_H (emass_H)
1083-1093 E11.6 --- chisqH ?=- chi square value of the fit
(pure-H) (chisq_H)
1095-1103 F9.2 K TeffHe ?=- Effective temperature from
fitting the dereddened G, BP, and
RP absolute fluxes with pure-He
model atmospheres (teff_He)
1105-1112 F8.2 K e_TeffHe ?=- Uncertainty on teff_He
(eteff_He)
1114-1121 F8.6 [cm/s2] loggHe ?=- Log of surface gravity from
fitting the dereddened G, BP, and
RP absolute fluxes (logg_He)
1123-1130 F8.6 [cm/s2] e_loggHe ?=- Uncertainty one logg_He
(elogg_He)
1132-1139 F8.6 Msun MassHe ?=- Stellar mass resulting from the
adopted mass-radius relationand
best fit parameters (mass_He)
1141-1148 F8.6 Msun e_MassHe ?=- Uncertainty on mass_He
(emass_He)
1150-1160 E11.6 --- chisqHe ?=- chi square value of the fit
(pure-He) (chisq_He)
1162-1170 F9.2 K Teffmix ?=- Effective temperature from
fitting the dereddened G, BP, and
RP absolute fluxes with mixed H-He
model atmospheres (teff_mixed)
1172-1179 F8.2 K e_Teffmix ?=- Uncertainty on teff_mixed
(eteff_mixed)
1181-1188 F8.6 [cm/s2] loggmix ?=- Log of surface gravity from
fitting the dereddened G, BP, and
RP absolute fluxes with mixed H-He
model atmospheres (logg_mixed)
1190-1197 F8.6 [cm/s2] e_loggmix ?=- Uncertainty on logg_mixed
(elogg_mixed)
1199-1206 F8.6 Msun Massmix ?=- Stellar mass resulting from the
adopted mass-radius relationand
best fit parameters (mass_mixed)
1208-1215 F8.6 Msun e_Massmix ?=- Uncertainty on mass_mixed
(emass_mixed)
1217-1227 E11.6 --- chisqmix ?=- chi square value of the fit
(mixed H-He) (chisq_mixed)
1229-1243 F15.8 pc rgeo Median of the geometric distance
posterior (Bailer-Jones et al.,
2021AJ....161..147B 2021AJ....161..147B, Cat. I/352)
(rmedgeo)
1245-1258 F14.8 pc b_rgeo 16th percentile of the geometric
distance posterior (Bailer-Jones et
al., 2021AJ....161..147B 2021AJ....161..147B,
Cat. I/352) (rlogeo)
1260-1273 F14.8 pc B_rgeo 84th percentile of the geometric
distance posterior (Bailer-Jones et
al., 2021AJ....161..147B 2021AJ....161..147B,
Cat. I/352) (rhigeo)
1275-1289 F15.8 pc rpgeo ?=- Median of the photogeometric
distance posterior (Bailer-Jones et
al., 2021AJ....161..147B 2021AJ....161..147B,
Cat. I/352) (rmedphotogeo)
1291-1304 F14.8 pc b_rpgeo ?=- 16th percentile of the
photogeometric distance posterior
(Bailer-Jones et al.,
2021AJ....161..147B 2021AJ....161..147B, Cat. I/352)
(rlophotogeo)
1306-1319 F14.8 pc B_rpgeo ?=- 84th percentile of the
photogeometric distance posterior
(Bailer-Jones et al.,
2021AJ....161..147B 2021AJ....161..147B, Cat. I/352)
(rhiphotogeo)
1321-1331 F11.6 --- fidel-v1 "astrometric fidelity" metric from
Rybizki et al., (2021,
arXiv:2101.11641) (fidelity_v1)
1333-1351 A19 --- SDSS12 SDSS object name if available
(SDSS + J2000 coordinates) (SDSS12)
1353 I1 --- sdssclean [0/1]?=- If 1 the SDSS photometry
for this object is considered
clean (sdss_clean) (G2)
1355-1360 F6.3 mag umag ?=- SDSS u band magnitude
1362-1368 F7.3 mag e_umag ?=- SDSS u band magnitude
uncertainty
1370-1375 F6.3 mag gmag ?=- SDSS g band magnitude
1377-1382 F6.3 mag e_gmag ?=- SDSS g band magnitude
uncertainty
1384-1389 F6.3 mag rmag ?=- SDSS r band magnitude
1391-1396 F6.3 mag e_rmag ?=- SDSS r band magnitude
uncertainty
1398-1403 F6.3 mag imag ?=- SDSS i band magnitude
1405-1410 F6.3 mag e_imag ?=- SDSS i band magnitude
uncertainty
1412-1417 F6.3 mag zmag ?=- SDSS z band magnitude
1419-1424 F6.3 mag e_zmag ?=- SDSS z band magnitude
uncertainty
1426-1433 F8.6 arcsec SDSSsep ?=- Angular separation between the
Gaia source and its associated SDSS
object, after coordinate
propagation (SDSS_separation)
1435-1436 I2 --- SDSSspec ?=- Number of SDSS spectra available
for this object (SDSS_spec)
--------------------------------------------------------------------------------
Note (1): flag as follows:
0 = indicates that the object is located within the 3D extinction map or that
real extinction value could be < 0.2 mag larger than AV_max
1 = indicates that the object is located outside the 3D extinction map and
that real extinction value could be between 0.2 and 0.5mag larger than
AV_max
2 = indicates that the object is located outside the 3D extinction map and
that real extinction value could be between 0.5 and 1.0mag larger than
AV_max
3 = indicates that the object is located outside the 3D extinction map and
that real extinction value could be >1.0 mag larger than AV_max
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sdssspec.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- WDJname WD name (JHHMMSS.ss+DDMMSS.ss)
equinox and epoch 2000 (G1)
25- 43 I19 --- GaiaEDR3 Gaia EDR3 source_id (source_id)
45- 63 I19 --- GaiaDR2 ?=- Gaia DR2 source_id (dr2sourceid)
65 A1 --- WDcat [M/E] M if the object is included in the
main catalogue, E if the object is in the
RPM extension
67- 81 F15.11 deg RAdeg Gaia EDR3 Barycentric right ascension (ICRS)
at Ep=2016.0 (ra)
83- 97 F15.11 deg DEdeg Gaia EDR3 Barycentric declination (ICRS)
at Ep=2016.0 (dec)
99-108 F10.4 mas Plx Gaia EDR3 Absolute stellar parallax
at Ep=2016.0 (parallax)
110-115 F6.4 mas e_Plx Gaia EDR3 parallax error (parallax_error)
117-124 F8.6 --- Pwd ?=- Probability of being a white dwarf
126 I1 --- PHwd ?=- Probability of being a white dwarf
based on reduced proper motion
128-134 F7.4 mag Gmag G-band mean magnitude (Vega)
(photgmean_mag)
136-141 F6.4 mag e_Gmag ?=- Standard error of G-band mean magnitude
(Vega) (photgmeanmagerror)
143-149 F7.4 mag BPmag Integrated BP mean magnitude (Vega)
(photbpmean_mag)
151-156 F6.4 mag e_BPmag ?=- Standard error of BP mean magnitude
(Vega) (photbpmeanmagerror)
158-164 F7.4 mag RPmag Integrated RP mean magnitude (Vega)
(photrpmean_mag)
166-171 F6.4 mag e_RPmag Standard error of RP mean magnitude (Vega)
(photrpmeanmagerror)
173-181 F9.2 K TeffH ?=- Effective temperature from fitting the
dereddened G, BP, and RP absolute fluxes
with pure-H model atmospheres ((teff_H)
183-190 F8.2 K e_TeffH ?=- Uncertainty on TeffH (eteff_H)
192-199 F8.6 [cm/s2] loggH ?=- Log of surface gravity from fitting the
dereddened G, BP, and RP absolute fluxes
with pure-H model atmospheres ((logg_H)
201-208 F8.6 [cm/s2] e_loggH ?=- Uncertainty one loggH (elogg_H)
210-217 F8.6 Msun MassH ?=- Stellar mass resulting from the adopted
mass-radius relationand best fit parameters
(mass_H)
219-226 F8.6 Msun e_MassH ?=- Uncertainty on MassH (emass_H)
228-238 E11.6 --- chisqH ?=- chi square value of the fit
(mixed pure-H) (chisq_H)
240-248 F9.2 K TeffHe ?=- Effective temperature from fitting the
dereddened G, BP, and RP absolute fluxes
with pure-He model atmospheres (teff_He)
250-257 F8.2 K e_TeffHe ?=- Uncertainty on TeffHe (eteff_He)
259-266 F8.6 [cm/s2] loggHe ?=- Log of surface gravity from fitting the
dereddened G, BP, and RP absolute fluxes
with pure-He model atmospheres (logg_He)
268-275 F8.6 [cm/s2] e_loggHe ?=- Uncertainty one loggHe (elogg_He)
277-284 F8.6 Msun MassHe ?=- Stellar mass resulting from the adopted
mass-radius relationand best fit parameters
(mass_He)
286-293 F8.6 Msun e_MassHe ?=- Uncertainty on mass_He (emass_He)
295-305 E11.6 --- chisqHe ?=- chi square value of the fit
(mixed pure-He) (chisq_He)
307-315 F9.2 K Teffmix ?=- Effective temperature from fitting the
dereddened G, BP, and RP absolute fluxes
with mixed H-He model atmospheres
(teff_mixed)
317-324 F8.2 K e_Teffmix ?=- Uncertainty on teff_mixed (eteff_mixed)
326-333 F8.6 [cm/s2] loggmix ?=- Log of surface gravity from fitting the
dereddened G, BP, and RP absolute fluxes
with mixed H-He model atmospheres
(logg_mixed)
335-342 F8.6 [cm/s2] e_loggmix ?=- Uncertainty one logg_mixed (elogg_mixed)
344-351 F8.6 Msun Massmix ?=- Stellar mass resulting from the adopted
mass-radius relationand best fit parameters
(mass_mixed)
353-360 F8.6 Msun e_Massmix ?=- Uncertainty on mass_mixed (emass_mixed)
362-372 E11.6 --- chisqmix ?=- chi square value of the fit (mixed H-He)
374-392 A19 --- SDSS12 SDSS object name if available
(SDSS + J2000 coordinates) (SDSS12)
394 I1 --- sdssclean [0/1] If 1 the SDSS photometry for this
object is considered clean
(sdss_clean) (G2)
396-401 F6.3 mag umag ?=- SDSS u band magnitude
403-408 F6.3 mag e_umag ?=- SDSS u band magnitude uncertainty
410-415 F6.3 mag gmag ?=- SDSS g band magnitude
417-421 F5.3 mag e_gmag ?=- SDSS g band magnitude uncertainty
423-428 F6.3 mag rmag ?=- SDSS r band magnitude
430-434 F5.3 mag e_rmag ?=- SDSS r band magnitude uncertainty
436-441 F6.3 mag imag ?=- SDSS i band magnitude
443-447 F5.3 mag e_imag ?=- SDSS i band magnitude uncertainty
449-454 F6.3 mag zmag ?=- SDSS z band magnitude
456-461 F6.3 mag e_zmag ?=- SDSS z band magnitude uncertainty
463-470 F8.6 arcsec SDSSsep ?=- Angular separation between the Gaia
source and its associated SDSS object,
after coordinate propagation
(SDSS_separation)
472-473 I2 --- SDSSspec Number of SDSS spectra available for this
object (SDSS_spec)
475-479 I5 --- Plate Identifier of the plate used in the
observation of the spectrum
481-485 I5 --- MJD Modified Julian date of the observation of
the spectrum
487-490 I4 --- FiberID Identifier of the fiber used in the
observation of the spectrum
492-494 I3 --- S/N Signal-to-noise ratio of the spectrum
calculated in the range 4500-5500Å
496-501 A6 --- specClass Classification of the object based on a
visual inspection of the SDSS spectrum
(spec_class) (1)
--------------------------------------------------------------------------------
Note (1): spectral classes are as follows:
CV = Cataclysmic Variable star
DA = white dwarfs with H lines only
DAB/DAB = white dwarfs with H lines and neutral He lines
DABZ/DBAZ/DZAB/DZBA = white dwarfs with H lines, neutral He lines and
Ca H & K lines
DAO/DO = white dwarfs with H lines and He II lines
DAZ/DZA = white dwarfs with H lines and Ca H & K lines
DB = white dwarfs with neutral He lines only
DBZ/DZB = white dwarfs with neutral He lines and Ca H & K lines
DC = white dwarfs with feature-less spectra
DQ = white dwarfs with molecular C absorptions
hotDQ = white dwarfs with atomic C absorption
DQpec = Peculiar white dwarfs with molecular C absorptions
DZ = white dwarfs with Ca H & K lines
DAH = white dwarfs with Zeeman split H lines
DBH = white dwarfs with Zeeman split He lines
DZH = white dwarfs with Zeeman split Ca H & K lines
MWD = Magnetic white dwarfs with unidentified absorption lines
WDPec = Peculiar magnetic white dwarf
PG1159 = Pre-white dwarf star
DB+MS/DA+MS/DC+M = White Dwarf - Main Sequence binary
STAR = non white dwarf stellar object
QSO = Quasar
UNK = Spectra which we were unable to classify
Unreliable = Unreliable spectra
--------------------------------------------------------------------------------
Byte-by-byte Description of file: rpm_ext.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 22 A22 --- WDJname WD name (JHHMMSS.ss+DDMMSS.ss)
equinox and epoch 2000 (G1)
24- 42 I19 --- GaiaEDR3 Gaia EDR3 source_id (source_id)
44- 62 I19 --- GaiaDR2 ?=- Gaia DR2 source_id
(dr2sourceid)
64- 92 A29 --- EDR3Name GaiaEDR3 name
(Gaia EDR3 NNNNNNNNNNNNNNNNNNN)
94- 108 F15.11 deg RAdeg Gaia EDR3 Barycentric right
ascension (ICRS) at Ep=2016.0 (ra)
110- 117 F8.6 mas e_RAdeg Gaia EDR3 standard error on right
ascension, eRA=eRA*cosDE
(ra_error)
119- 133 F15.11 deg DEdeg Gaia EDR3 Barycentric declination
(ICRS) at Ep=2016.0 (dec)
135- 142 F8.6 mas e_DEdeg Gaia EDR3 standard error on
declination (dec_error)
144- 153 F10.4 mas Plx Gaia EDR3 Absolute stellar parallax
at Ep=2016.0 (parallax)
155- 160 F6.4 mas e_Plx Gaia EDR3 parallax error
(parallax_error)
162- 171 F10.4 --- RPlx Gaia EDR3 Parallax divided by its
standard error
(parallaxovererror)
173- 180 F8.6 --- PHwd The probability of being a white
dwarf (PHwd)
182- 184 I3 --- density The number of Gaia sources in the
same ~= 50 arcsec sq. bin as this
object (density)
186- 204 I19 --- SolID Gaia EDR3 Solution ID (solution_id)
206- 215 I10 --- RandomI Gaia EDR3 Random index used to
select subsets (random_index)
217- 220 I4 yr Epoch Gaia EDR3 Reference epoch
(ref_epoch)
222- 230 F9.3 mas/yr PM Gaia EDR3 Total proper motion (pm)
232- 237 F6.4 mas/yr e_PM Gaia EDR3 Total proper motion error
(pm_error)
239- 247 F9.3 mas/yr pmRA Gaia EDR3 Proper motion in RA,
pmRA*cosDE (pmra)
249- 253 F5.3 mas/yr e_pmRA Gaia EDR3 Proper motion in RA error
(pmra_error)
255- 263 F9.3 mas/yr pmDE Gaia EDR3 Proper motion in DE
(pmdec)
265- 269 F5.3 mas/yr e_pmDE Gaia EDR3 Proper motion in DE error
(pmdec_error)
271- 277 F7.4 --- RADEcor [-1/1] Correlation between right
ascension and declination
(radeccorr)
279- 285 F7.4 --- RAPlxcor [-1/1]? Correlation between right
ascension and parallax
(raparallaxcorr)
287- 293 F7.4 --- RApmRAcor [-1/1]? Correlation between right
ascension and proper motion in
right ascension (rapmracorr)
295- 301 F7.4 --- RApmDEcor [-1/1]? Correlation between right
ascension and proper motion in
declination (rapmdeccorr)
303- 309 F7.4 --- DEPlxcor [-1/1]? Correlation between
declination and parallax
(decparallaxcorr)
311- 317 F7.4 --- DEpmRAcor [-1/1]? Correlation between
declination and proper motion in
right ascension (decpmracorr)
319- 325 F7.4 --- DEpmDEcor [-1/1]? Correlation between
declination and proper motion in
declination (decpmdeccorr)
327- 333 F7.4 --- PlxpmRAcor [-1/1]? Correlation between parallax
and proper motion in right
ascension (parallaxpmracorr)
335- 341 F7.4 --- PlxpmDEcor [-1/1]? Correlation between parallax
and proper motion in declination
(parallaxpmdeccorr)
343- 349 F7.4 --- pmRApmDEcor [-1/1]? Correlation between proper
motion in right ascension and
proper motion in declination
(pmrapmdeccorr)
351- 354 I4 --- NAL Total number of observations AL
(astrometricnobs_al)
356- 358 I3 --- NAC Total number of observations AC
(astrometricnobs_ac)
360- 363 I4 --- NgAL Number of good observations AL
(astrometricngoodobsal)
365- 366 I2 --- NbAL Number of bad observations AL
(astrometricnbadobsal)
368- 376 F9.4 --- gofAL Goodness of fit statistic of model
wrt along-scan observations
(astrometricgofal)
378- 390 F13.2 --- chi2AL AL chi-square value
(astrometricchi2al)
392- 399 F8.6 mas epsi Excess noise of the source
(astrometricexcessnoise)
401- 410 F10.6 --- sepsi Significance of excess noise
(astrometricexcessnoise_sig)
412- 413 I2 --- Solved Which parameters have been solved
for? (astrometricparamssolved)
415 I1 --- APF Primary or secondary
(astrometricprimaryflag)
417- 423 F7.5 um-1 nueff ?=- Effective wavenumber of the
source used in the astrometric
solution
(nueffusedinastrometry)
425- 432 F8.6 um pscol ?=- Astrometrically estimated
pseudocolour of the source
(pseudocolour)
434- 441 F8.6 um e_pscol ?=- Standard error of the
pseudocolour of the source
(pseudocolour_error)
443- 451 F9.6 --- RApscolCorr [-1/1]?=- Correlation between right
ascension and pseudocolour
(rapseudocolourcorr)
453- 461 F9.6 --- DEpscolCorr [-1/1]?=- Correlation between
declination and pseudocolour
(decpseudocolourcorr)
463- 471 F9.6 --- PlxpscolCorr [-1/1]?=- Correlation between
parallax and pseudocolour
(parallaxpseudocolourcorr)
473- 481 F9.6 --- pmRApscolCorr [-1/1]?=- Correlation between proper
motion in right ascension and
pseudocolour
(pmrapseudocolourcorr)
483- 491 F9.6 --- pmDEpscolCorr [-1/1]?=- Correlation between proper
motion in declination and
pseudocolour
(pmdecpseudocolourcorr)
493- 495 I3 --- MatchObsA Matched FOV transits used in the
AGIS solution
(astrometricmatchedtransits)
497- 498 I2 --- Nper Number of visibility periods used in
Astrometric solution
(visibilityperiodsused)
500- 507 F8.6 mas amax The longest semi-major axis of the
-5--10 error ellipsoid
(astrometricsigma5dmax)
509- 511 I3 --- MatchObs The total number of field-of-view
transits matched to this source
(matched_transits)
513- 515 I3 --- NewMatchObs The number of transits newly
incorporated into an existing
source in the current cycle
(newmatchedtransits)
517- 518 I2 --- MatchObsrm The number of transits removed from
an existing source in the current
cycle (matchedtransitsremoved)
520- 527 F8.6 --- IPDgofha Amplitude of the IPD GoF versus
position angle of scan
(ipdgofharmonic_amplitude)
529- 538 F10.6 --- IPDgofhp Phase of the IPD GoF versus position
angle of scan
(ipdgofharmonic_phase)
540- 541 I2 --- IPDfmp Percent of successful-IPD windows
with more than one peak
(ipdfracmulti_peak)
543- 544 I2 --- IPDfow Percent of transits with truncated
windows or multiple gate
(ipdfracodd_win)
546- 553 F8.6 --- RUWE Renormalised unit weight error
(ruwe)
555- 562 F8.6 --- SDSk1 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k1)
564- 571 F8.6 --- SDSk2 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k2)
573- 580 F8.6 --- SDSk3 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k3)
582- 589 F8.6 --- SDSk4 ?=- Degree of concentration of scan
directions across the source
(scandirectionstrength_k4)
591- 601 F11.6 --- SDMk1 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k1)
603- 612 F10.6 --- SDMk2 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k2)
614- 623 F10.6 --- SDMk3 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k3)
625- 634 F10.6 --- SDMk4 ?=- Mean position angle of scan
directions across the source
(scandirectionmean_k4)
636 I1 --- Dup Source with multiple source
identifiers (duplicated_source)
638- 641 I4 --- o_Gmag Number of observations (CCD
transits) that contributed to the
G mean flux and mean flux error
(photgn_obs)
643- 653 E11.5 e-/s FG ?=- Mean flux in the G-band
(photgmean_flux)
655- 665 E11.5 e-/s e_FG ?=- Standard deviation of the G-band
fluxes divided by sqrt(photGNObs)
(photgmeanfluxerror)
667- 675 F9.3 --- RFG ?=- Mean flux in the G-band divided
by its error
(photgmeanfluxover_error)
677- 683 F7.4 mag Gmag G-band mean magnitude (Vega)
(photgmean_mag)
685- 690 F6.4 mag e_Gmag ?=- Standard error of G-band mean
magnitude (Vega)
(photgmeanmagerror)
692- 702 E11.5 mag FGCorr Calibration corrected G-band mean
flux
(photbprpexcessfactor_corrected)
704- 712 F9.6 mag GmagCorr Calibration corrected G magnitude
(photgmeanmagcorrected)
714- 722 F9.7 mag e_GmagCorr Standard error of calibration
corrected G magnitude
(photgmeanmagerror_corrected)
724- 726 I3 --- o_BPmag Number of observations contributing
to BP photometry (photbpn_obs)
728- 738 E11.5 e-/s FBP Mean flux in the integrated BP band
(photbpmean_flux)
740- 750 E11.5 e-/s e_FBP Error on the integrated BP mean flux
(photbpmeanfluxerror)
752- 760 F9.3 --- RFBP Integrated BP mean flux divided by
its error
(photbpmeanfluxover_error)
762- 768 F7.4 mag BPmag Integrated BP mean magnitude (Vega)
(photbpmean_mag)
770- 777 F8.6 mag e_BPmag ?=- Standard error of BP mean
magnitude (Vega)
(photbpmeanmagerror)
779- 781 I3 --- o_RPmag Number of observations (CCD
transits) that contributed to the
integrated RP mean flux and mean
flux error (photrpn_obs)
783- 793 E11.5 e-/s FRP ?=- Mean flux in the integrated RP
band (photrpmean_flux)
795- 805 E11.5 e-/s e_FRP Error on the integrated RP mean flux
(photrpmeanfluxerror)
807- 815 F9.3 --- RFRP Integrated RP mean flux divided by
its error
(photrpmeanfluxover_error)
817- 823 F7.4 mag RPmag Integrated RP mean magnitude (Vega)
(photrpmean_mag)
825- 832 F8.6 mag e_RPmag Standard error of RP mean magnitude
(Vega) (photrpmeanmagerror)
834- 835 I2 --- NBPcont Number of BP contaminated transits
(photbpncontaminatedtransits)
837- 839 I3 --- NBPblend Number of BP blended transits
(photbpnblendedtransits)
841- 842 I2 --- NRPcont Number of RP contaminated transits
(photrpncontaminatedtransits)
844- 846 I3 --- NRPblend Number of RP blended transits
(photrpnblendedtransits)
848 I1 --- Mode Photometry processing mode
(photprocmode)5)
850- 857 F8.6 --- E(BP/RP) BP/RP excess factor
(photbprpexcessfactor)
859- 864 F6.3 --- E(BP/RP)Corr BP/RP excess factor corrected for
colour dependence (Riello et al.,
2021A&A...649A...3R 2021A&A...649A...3R,
Cat. J/A+A/649/A3)
866- 873 F8.6 --- sigmacorr sigma correction (sigma_corr)
875- 883 F9.6 mag BP-RP BP-RP colour (bp_rp)
885- 893 F9.6 mag BP-G BP-G colour (bp_g)
895- 903 F9.6 mag G-RP G-RP colour (g_rp)
905 A1 --- RV [-] dr2radialvelocity (not used)
907 A1 --- e_RV [-] dr2radialvelocity_error
(not used)
909 A1 --- o_RV [0] dr2rvnb_transits (not used)
911 A1 --- Teff [-] dr2rvtemplate_teff (not used)
913 A1 --- logg [-] dr2rvtemplate_logg (not used)
915 A1 --- [Fe/H] [-] dr2rvtemplatefeh (not used)
917- 930 F14.10 deg GLON Galactic longitude (l)
932- 945 F14.10 deg GLAT Galactic latitude (b)
947- 960 F14.10 deg ELON Ecliptic longitude (ecl_lon)
962- 975 F14.10 deg ELAT Ecliptic latitude (ecl_lat)
977- 995 A19 --- SDSS12 SDSS object name if available
(SDSS + J2000 coordinates) (SDSS12)
997 I1 --- sdssclean [0/1]?=- If 1 the SDSS photometry
for this object is considered
clean (sdss_clean) (G2)
999-1004 F6.3 mag umag ?=- SDSS u band magnitude
1006-1011 F6.3 mag e_umag ?=- SDSS u band magnitude
uncertainty
1013-1018 F6.3 mag gmag ?=- SDSS g band magnitude
1020-1025 F6.3 mag e_gmag ?=- SDSS g band magnitude
uncertainty
1027-1032 F6.3 mag rmag ?=- SDSS r band magnitude
1034-1039 F6.3 mag e_rmag ?=- SDSS r band magnitude
uncertainty
1041-1046 F6.3 mag imag ?=- SDSS i band magnitude
1048-1053 F6.3 mag e_imag ?=- SDSS i band magnitude
uncertainty
1055-1060 F6.3 mag zmag ?=- SDSS z band magnitude
1062-1067 F6.3 mag e_zmag ?=- SDSS z band magnitude
uncertainty
1069-1076 F8.6 arcsec SDSSsep ?=- Angular separation between the
Gaia source and its associated SDSS
object, after coordinate
propagation (SDSS_separation)
1078 I1 --- SDSSspec ?=- Number of SDSS spectra available
for this object (SDSS_spec)
--------------------------------------------------------------------------------
Global notes:
Note (G1): CDS note. The acronym WD JHHMMSS.ss+DDMMSS.ss, where WD means White
Dwarf, has not been accepted by the IAU Working Group on Designations &
Nomenclature (Commission B2) and will not be implemented in SIMBAD, because
68% of the sources have a probability to be a White Dwarf smaller than 50%
(column Pwd). The CDS recommend to use the Gaia DR3 identifier instead.
Note (G2): see https://www.sdss.org/dr16/tutorials/flags
--------------------------------------------------------------------------------
Acknowledgements:
Nicola Gentile Fusillo, ngentile(at)eso.org
History:
24-Nov-2021: on-line version
10-Jun-2022: corrected version for main.dat and sdssspec.dat
(End) Patricia Vannier [CDS] 10-Nov-2021