J/MNRAS/504/2420 Close white dwarf binaries - Ref. samples (Inight+, 2021)
Towards a volumetric census of close white dwarf binaries. I. Reference samples.
Inight K., Gansicke B.T., Breedt E., Marsh T.R., Pala A.F., Raddi R.
<Mon. Not. R. Astron. Soc., 504, 2420-2442 (2021)>
=2021MNRAS.504.2420I 2021MNRAS.504.2420I (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, cataclysmic ; Stars, white dwarf ; Stars, variable ;
Photometry, ultraviolet ; Optical ; Proper motions ;
Parallaxes, trigonometric
Keywords: stars: evolution - Hertzsprung-Russell and colour-magnitude diagrams -
novae, cataclysmic variables - stars: statistics - stars: distances
Abstract:
Close white dwarf binaries play an important role across a range of
astrophysics, including thermonuclear supernovae, the Galactic
low-frequency gravitational wave signal, and the chemical evolution of
the Galaxy. Progress in developing a detailed understanding of the
complex, multithreaded evolutionary pathways of these systems is
limited by the lack of statistically sound observational constraints
on the relative fractions of various sub-populations and their
physical properties. The available samples are small, heterogeneous,
and subject to a multitude of observational biases. Our overarching
goal is to establish a volume-limited sample of all types of white
dwarf binaries that is representative of the underlying population as
well as sufficiently large to serve as a benchmark for future binary
population models. In this first paper, we provide an overview of the
project, and assemble reference samples within a distance limit of 300
pc of known white dwarf binaries spanning the most common sub-classes:
post-common envelope binaries containing a white dwarf plus a
main-sequence star, cataclysmic variables, and double-degenerate
binaries. We carefully vet the members of these Gold samples, which
span most of the evolutionary parameter space of close white dwarf
binary evolution. We also explore the differences between magnitude
and volume limited close white dwarf binary samples, and discuss how
these systems evolve in their observational properties across the Gaia
Hertzsprung-Russell diagram.
Description:
The key motivation of the project presented here is to assemble a
volume-limited sample that includes a homogeneous representation of
all major sub-types of close white dwarf binaries: detached white
dwarf plus main-sequence post-common envelope binaries (PCEBs),
interacting white dwarf binaries (cataclysmic variables, CVs), and
double white dwarfs (DWDs). The definition of these samples and a
discussion of their overall properties within the Gaia
Hertzsprung-Russell (HR) diagram is the focus of this paper. These
reference samples will then be used to define algorithms that identify
white dwarf binary candidates (close white dwarf binary), combining
Gaia data with observations extending over a wider wavelength range.
Based on multiple catalogues and samples, we constructed the gold
samples applying a list of constrains for example 300 pc as the
limit, yielding 114 systems of white dwarfs with M-type companions,
which are listed in tablea1.dat.
The process of establishing systems as close WD+AFGK binaries is
the same as the WD+M ones. As before, systems without a Gaia match
or parallax were dropped and quality filters (see equations 1-5) were
applied. The WD+AFGK Gold Sample contains 15 systems are showed in the
tablea2.dat.
By the same logic, we constructed the CV gold sample. Thus, we found a
total of 152 CVs with reliable spectra and a history of variability as
exhibits in tablea3.dat. Moreover, we hope many potential candidates
have been rejected due to poor data quality will be confirmed by Gaia
EDR3 astrometry. Futhermore, in order to ensure precision in the red
and blue photometry is within 10 percent (approx. 0.1 mag), we again
followed filters (see equations 4 and 5, Lindergren et al.
2018A&A...616A...2L 2018A&A...616A...2L, Cat. I/345). Consequently, known CVs that
failed these quality cuts are listed in tablea4.dat.
Finally, many DWDs have been documented in the literature. Volumetric
surveys of white dwarfs encompassing 20 pc (Hollands et al.
2018MNRAS.480.3942H 2018MNRAS.480.3942H, Cat. J/MNRAS/480/3942) and 40 pc (McCleery et
al. 2020MNRAS.499.1890M 2020MNRAS.499.1890M, Cat. J/MNRAS/499/1890) contain a number of
confirmed DWDs and these were supplemented by a collection of systems
from various other publications, which include most of the known DWDs.
With we same selection criteria steps, it remains 67 DWDs composing
the Gold Sample revealed in the tabela5.dat.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 561 114 The WD+M Gold Sample
tablea2.dat 565 15 The WD+AFGK Gold Sample
tablea3.dat 681 151 CV Gold Sample
tablea4.dat 467 104 Confirmed CVs with d < 300 pc excluded from
the Gold sample because of data quality issues
tablea5.dat 502 63 The DWD Gold Sample
--------------------------------------------------------------------------------
See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 24 A24 --- Name Identifier (name)
26- 44 I19 --- GaiaDR2 Gaia DR2 unique source ID (source_id)
46-112 A67 --- Refs References as ADS bibcodes (references)
114-132 F19.15 deg RAdeg Right ascension (ICRS) at Ep=2015.5 (ra)
134-154 F21.17 deg DEdeg Declination (ICRS) at Ep=2015.5 (dec)
156-160 A5 --- Type Type of white dwarf and companion
where known (PREP = pre-polar,
BD = brown dwarf) (type)
162-166 I5 K Teffwd ? White dwarf effective temperature
(teffwd)
168-172 F5.3 [cm.s-2] logg ? Stellar log(surface gravity) (logg)
174-192 F19.15 h Porb ? Orbital period (porb)
194-197 F4.1 --- sp ? Spectral type of (M-type) companion
(0 - 9) where known, blank or -1
otherwise (sp)
199-216 F18.15 mas plx Absolute stellar parallax (parallax)
218-236 F19.17 mas e_plx Uncertainty in parallax (parallax_error)
238-258 F21.16 mas/yr pmRA Proper motion in right ascension
direction such as pmRA*cosDE (pmra)
260-281 F22.17 mas/yr pmDE Proper motion in declination
direction (pmdec)
283-299 F17.14 mag Gmag G-band mean magnitude scale
on Vega magnitude (photgmean_mag)
301-322 F22.20 mag e_Gmag Mean error on Gmag
(photgmeanmagerror)
324-340 F17.14 mag BPmag Integrated BP mean magnitude scale
on Vega magnitude (photbpmean_mag)
342-362 F21.19 mag e_BPmag Mean error on BPmag
(photbpmeanmagerror)
364-380 F17.14 mag RPmag Integrated RP mean magnitude scale
on Vega magnitude (photrpmean_mag)
382-402 F21.19 mag e_RPmag Mean error on RPmag
(photrpmeanmagerror)
404-422 F19.15 deg GLON Galactic longitude (l)
424-442 F19.15 deg GLAT Galactic latitude (b)
444-461 F18.16 --- ruwe Gaia renormalized unit weight error
(ruwe)
463-479 F17.13 pc rest Estimated distance (r_est) (1)
481-501 F21.18 pc e_rest Mean on error rest (resterror)
503 I1 --- GalexCoverage [0/1] 1 if this location is present
in one or more GALEX tiles, 0 otherwise
(galex_coverage)
505-523 I19 --- ObjID ? GALEX identifier for the source
(objid)
525-534 F10.7 mag FUVmag ? GALEX FUV calibrated magnitude
in AB system (fuv_mag)
536-542 F7.5 mag e_FUVmag ? Uncertainty on FUVmag (fuve)
544-553 F10.7 mag NUVmag ? GALEX NUV calibrated magnitude
in AB system (nuv_mag)
555-561 F7.5 mag e_NUVmag ? Uncertainty on NUVmag (nuve)
--------------------------------------------------------------------------------
Note (1): From the catalogue of distances to 1.33 billion stars in Gaia DR2
(Bailer-Jones et al. 2018AJ....156...58B 2018AJ....156...58B, Cat. I/347).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Name Identifier (name)
17- 35 I19 --- GaiaDR2 Gaia DR2 unique source ID (source_id)
38- 78 A41 --- Refs References as ADS bibcodes (references)
80- 97 F18.14 deg RAdeg Right ascension (ICRS) at Ep=2015.5 (ra)
99-117 F19.15 deg DEdeg Declination (ICRS) at Ep=2015.5 (dec)
119-138 F20.15 K Teff ? Stellar effective temperature
(teffwd)
140-159 F20.15 h Porb ? Orbital period (porb)
161-178 F18.15 mas plx Absolute stellar parallax (parallax)
180-198 F19.17 mas e_plx Uncertainty in parallax (parallax_error)
200-220 F21.17 mas/yr pmRA Proper motion in right ascension
direction such as pmRA*cosDE (pmra)
222-241 F20.16 mas/yr pmDE Proper motion in declination
direction (pmdec)
243-261 F19.15 mag Gmag G-band mean magnitude scale
(photgmean_mag)
263-285 F23.20 mag e_Gmag Mean error on Gmag
(photgmeanmagerror)
287-309 F23.20 mag BPmag Integrated BP mean magnitude scale
on Vega magnitude (photbpmean_mag)
311-332 F22.19 mag e_BPmag Mean error on BPmag
(photbpmeanmagerror)
334-355 F22.19 mag RPmag Integrated RP mean magnitude scale
on Vega magnitude (photrpmean_mag)
357-378 F22.19 mag e_RPmag Mean error on RPmag
(photrpmeanmagerror)
380-402 F23.19 deg GLON Galactic longitude (l)
404-421 F18.14 deg GLAT Galactic latitude (b)
423-442 F20.16 --- ruwe Gaia renormalized unit weight error
(ruwe)
444-463 F20.16 pc rest Estimated distance (r_est) (1)
467-485 F19.17 pc e_rest Mean on error rest (resterror)
488 I1 --- GalexCoverage [0/1] 1 if this location is present
in one or more GALEX tiles, 0 otherwise
(galex_coverage)
490-508 I19 --- ObjID ? GALEX identifier for the source (objid)
510-519 F10.7 mag FUVmag ? GALEX FUV calibrated magnitude
in AB system (fuv_mag)
524-536 F13.11 mag e_FUVmag ? Uncertainty on FUVmag (fuve)
538-551 F14.11 mag NUVmag ? GALEX NUV calibrated magnitude
in AB system (nuv_mag)
553-565 F13.11 mag e_NUVmag ? Uncertainty on NUVmag (nuve)
--------------------------------------------------------------------------------
Note (1): From the catalogue of distances to 1.33 billion stars in Gaia DR2
(Bailer-Jones et al. 2018AJ....156...58B 2018AJ....156...58B, Cat. I/347).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 29 A29 --- Name Identifier (name)
31- 49 I19 --- GaiaDR2 Gaia DR2 unique source ID (source_id)
51-227 A177 --- Refs References as ADS bibcodes (references)
229-247 F19.15 deg RAdeg Right ascension (ICRS) at Ep=2015.5 (ra)
249-268 F20.16 deg DEdeg Declination (ICRS) at Ep=2015.5 (dec)
270-283 A14 --- cvType CV type (Novalike, AM CVn, WZ Sge,
Magnetic, U Gem or SU UMa) or CV if type
is unknown (cv_type)
285-304 F20.17 h Porb ? Orbital period (porb)
306-323 F18.15 mas plx Absolute stellar parallax (parallax)
325-343 F19.17 mas e_plx Uncertainty in parallax (parallax_error)
345-365 F21.16 mas/yr pmRA Proper motion in right ascension
direction such as pmRA*cosDE (pmra)
367-387 F21.16 mas/yr pmDE Proper motion in declination
direction (pmdec)
389-406 F18.15 mag Gmag G-band mean magnitude scale
408-428 F21.19 mag e_Gmag Mean error on Gmag
(photgmeanmagerror)
430-447 F18.15 mag BPmag Integrated BP mean magnitude scale
on Vega magnitude (photbpmean_mag)
449-468 F20.18 mag e_BPmag Mean error on BPmag
(photbpmeanmagerror)
470-487 F18.15 mag RPmag Integrated RP mean magnitude scale
on Vega magnitude (photrpmean_mag)
489-509 F21.19 mag e_RPmag Mean error on RPmag
(photrpmeanmagerror)
511-529 F19.15 deg GLON Galactic longitude (l)
531-550 F20.16 deg GLAT Galactic latitude (b)
552-569 F18.16 --- ruwe Gaia renormalized unit weight error
(ruwe)
571-587 F17.13 pc rest Estimated distance (r_est) (1)
589-608 F20.17 pc e_rest Mean on error rest (resterror)
610 I1 --- GalexCoverage [0/1] 1 if this location is present
in one or more GALEX tiles, 0 otherwise
612-630 I19 --- ObjID ? GALEX identifier for the source (objid)
632-641 F10.7 mag FUVmag ? GALEX FUV calibrated magnitude
in AB system (fuv_mag)
643-655 F13.11 mag e_FUVmag ? Uncertainty on FUVmag (fuve)
657-666 F10.7 mag NUVmag ? GALEX NUV calibrated magnitude
in AB system (nuv_mag)
668-681 F14.12 mag e_NUVmag ? Uncertainty on NUVmag (nuve)
--------------------------------------------------------------------------------
Note (1): From the catalogue of distances to 1.33 billion stars in Gaia DR2
(Bailer-Jones et al. 2018AJ....156...58B 2018AJ....156...58B, Cat. I/347).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 29 A29 --- Name Identifier (name)
31- 49 I19 --- GaiaDR2 Gaia DR2 unique source ID (source_id)
51- 69 F19.15 deg RAdeg Right ascension (ICRS) at Ep=2015.5 (ra)
71- 90 F20.16 deg DEdeg Declination (ICRS) at Ep=2015.5 (dec)
92-109 F18.15 mas plx Absolute stellar parallax (parallax)
111-129 F19.17 mas e_plx Uncertainty in parallax (parallax_error)
131-151 F21.16 mas/yr pmRA Proper motion in right ascension
direction such as pmRA*cosDE (pmra)
153-174 F22.17 mas/yr pmDE Proper motion in declination
direction (pmdec)
176-192 F17.14 mag Gmag G-band mean magnitude scale
on vega magnitude (photgmean_mag)
195-215 F21.19 mag e_Gmag Mean error on Gmag
(photgmeanmagerror)
217-233 F17.14 mag BPmag ? Integrated BP mean magnitude scale
on vega magnitude (photbpmean_mag)
235-254 F20.18 mag e_BPmag ? Mean error on BPmag
(photbpmeanmagerror)
256-272 F17.14 mag RPmag ? Integrated RP mean magnitude scale
on vega magnitude (photrpmean_mag)
274-294 F21.19 mag e_RPmag ? Mean error on RPmag
(photrpmeanmagerror)
296-315 F20.16 deg GLON Galactic longitude (l)
317-336 F20.16 deg GLAT Galactic latitude (b)
338-355 F18.16 --- ruwe Gaia renormalized unit weight error
(ruwe)
357-373 F17.13 pc rest Estimated distance (r_est) (1)
375-396 F22.17 pc e_rest Mean on error rest (resterror)
398 I1 --- GalexCoverage [0/1] 1 if this location is present
in one or more GALEX tiles, 0 otherwise
(galex_coverage)
400-418 I19 --- ObjID ? GALEX identifier for the source
(objid)
420-429 F10.7 mag FUVmag ? GALEX FUV calibrated magnitude
in AB system (fuv_mag)
431-442 F12.10 mag e_FUVmag ? Uncertainty on FUVmag (fuve)
444-453 F10.7 mag NUVmag ? GALEX NUV calibrated magnitude
in AB system (nuv_mag)
455-467 F13.11 mag e_NUVmag ? Uncertainty on NUVmag (nuve)
--------------------------------------------------------------------------------
Note (1): From the catalogue of distances to 1.33 billion stars in Gaia DR2
(Bailer-Jones et al. 2018AJ....156...58B 2018AJ....156...58B, Cat. I/347).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 24 A24 --- Name Identifier (name)
26- 44 I19 --- GaiaDR2 Gaia DR2 unique source ID (source_id)
46- 65 A20 --- Refs References as ADS bibcodes (references)
67- 85 F19.15 deg RAdeg Right ascension (ICRS) at Ep=2015.5 (ra)
87-106 F20.16 deg DEdeg Declination (ICRS) at Ep=2015.5 (dec)
108-129 F22.16 h Porb ? Orbital period (porb)
131-148 F18.15 mas plx Absolute stellar parallax (parallax)
150-168 F19.17 mas e_plx Uncertainty in parallax (parallax_error)
170-189 F20.15 mas/yr pmRA Proper motion in right ascension
direction such as pmRA*cosDE (pmra)
191-212 F22.16 mas/yr pmDE Proper motion in declination
direction (pmdec)
214-230 F17.14 mag Gmag G-band mean magnitude scale
(photgmean_mag)
232-253 F22.20 mag e_Gmag Mean error on Gmag
(photgmeanmagerror)
255-271 F17.14 mag BPmag Integrated BP mean magnitude scale
on vega magnitude (photbpmean_mag)
273-293 F21.19 mag e_BPmag Mean error on BPmag
(photbpmeanmagerror)
295-311 F17.14 mag RPmag Integrated RP mean magnitude scale
on vega magnitude (photrpmean_mag)
313-333 F21.19 mag e_RPmag Mean error on RPmag
(photrpmeanmagerror)
335-352 F18.14 deg GLON Galactic longitude (l)
354-372 F19.15 deg GLAT Galactic latitude (b)
374-391 F18.16 --- ruwe Gaia renormalized unit weight error
(ruwe)
393-409 F17.13 pc rest Estimated distance (r_est) (1)
411-431 F21.19 pc e_rest Mean on error rest (resterror)
433 I1 --- GalexCoverage [0/1] 1 if this location is present
in one or more GALEX tiles,
0 otherwise (galex_coverage)
435-453 I19 --- ObjID ? GALEX identifier for the source (objid)
455-464 F10.7 mag FUVmag ? GALEX FUV calibrated magnitude
in AB system (fuv_mag)
466-477 F12.10 mag e_FUVmag ? Uncertainty on FUVmag (fuve)
479-488 F10.7 mag NUVmag ? GALEX NUV calibrated magnitude
in AB system (nuv_mag)
490-502 F13.11 mag e_NUVmag ? Uncertainty on NUVmag (nuve)
--------------------------------------------------------------------------------
Note (1): From the catalogue of distances to 1.33 billion stars in Gaia DR2
(Bailer-Jones et al. 2018AJ....156...58B 2018AJ....156...58B, Cat. I/347).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Luc Trabelsi [CDS] 26-Apr-2024