J/MNRAS/402/620 SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2010)
Post-common envelope binaries from SDSS.
VII. A catalogue of white dwarf-main sequence binaries.
Rebassa-Mansergas A., Gansicke B.T., Schreiber M.R., Koester D.,
Rodriguez-Gil P.
<Mon. Not. R. Astron. Soc., 402, 620-640 (2010)>
=2010MNRAS.402..620R 2010MNRAS.402..620R
ADC_Keywords: Stars, double and multiple ; Stars, white dwarf ; Stars, dwarfs ;
Radial velocities ; Stars, masses
Keywords: stars: AGB and post-AGB - binaries: close - binaries: spectroscopic -
stars: low-mass, brown dwarfs - white dwarfs
Abstract:
We present a catalogue of 1602 white-dwarf-main-sequence (WDMS)
binaries from the spectroscopic Sloan Digital Sky Survey Data Release
6 (SDSS DR6). Among these, we identify 440 as new WDMS binaries. We
select WDMS binary candidates by template fitting all 1.27 million DR6
spectra, using combined constraints in both chi2 and signal-to-noise
ratio. In addition, we use Galaxy Evolution Explorer (GALEX) and UKIRT
Infrared Sky Survey (UKIDSS) magnitudes to search for objects in which
one of the two components dominates the SDSS spectrum. We use a
decomposition/fitting technique to measure the effective temperatures,
surface gravities, masses and distances to the white dwarfs, as well
as the spectral types and distances to the companions in our catalogue
Description:
We have developed a procedure based on chi2 template fitting in
order to automatically identify WDMS binary candidates from the SDSS
DR6 spectroscopic data base.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 66 204 Updated classification of the 204 objects from
Silvestri et al. (2007, Cat J/AJ/134/741)
which are not considered as WDMS binaries by us
table3.dat 61 81 Updated classification of the 81 objects from
Heller et al. (2009, Cat. J/A+A/496/191)
which are not considered as WDMS binaries by us
table5.dat 242 1602 The complete catalogue. Coordinates and
GALEX-SDSS-UKIDSS magnitudes for the 1602 WDMS
binaries and candidates are also included
table7.dat 118 3592 *White-dwarf masses, effective temperatures,
surface gravities, spectral types and distances
of the 1602 WDMS binaries in our catalogue, as
determined from spectral modelling
table9.dat 68 1225 Radial velocities measured from the NaI
λλ8183.27,8194.81 doublet and the
Hα emission for 1068 systems in our catalogue
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Note on table7.dat: We list both the hot and the cold solutions, with the
preferred solution given in the first line for each spectrum. The
other solution is given for completeness.
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See also:
J/MNRAS/382/1377 : SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2007)
J/ApJS/167/40 : SDSS4 confirmed white dwarfs catalog (Eisenstein+, 2006)
J/AJ/134/741 : New close binary systems from SDSS DR5 (Silvestri+, 2007)
J/A+A/486/843 : White dwarf-red dwarf binaries in SDSS (Augusteijn+, 2008)
J/A+A/496/191 : Spectral analysis of 636 SDSS WD-M binaries (Heller+, 2009)
Byte-by-byte Description of file:table[23].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [SDSS]
5- 23 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s)
25- 66 A42 --- Com Comments
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [SDSS]
5- 23 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s)
25- 34 F10.6 deg RAdeg Right ascension in decimal degrees (J2000)
36- 45 F10.6 deg DEdeg Declination in decimal degrees (J2000)
47- 54 F8.5 mag NUV ?=0 GALEX NUV magnitude (177-300nm)
56- 62 F7.5 mag e_NUV ?=0 rms uncertainty on NUV
64- 71 F8.5 mag FUV ?=0 GALEX FUV magnitude (135-175nm)
73- 79 F7.5 mag e_FUV ?=0 rms uncertainty on FUV
81- 88 F8.5 mag umag ?=0 SDSS u magnitude
90- 96 F7.5 mag e_umag ?=0 rms uncertainty on umag
98-105 F8.5 mag gmag ?=0 SDSS g magnitude
107-113 F7.5 mag e_gmag ?=0 rms uncertainty on gmag
115-122 F8.5 mag rmag ?=0 SDSS r magnitude
124-130 F7.5 mag e_rmag ?=0 rms uncertainty on rmag
132-139 F8.5 mag imag ?=0 SDSS i magnitude
141-148 F8.5 mag e_imag ?=0 rms uncertainty on imag
150-157 F8.5 mag zmag ?=0 SDSS z magnitude (1)
159-166 F8.5 mag e_zmag ?=0 rms uncertainty on zmag
168-175 F8.5 mag Ymag ?=0 UKIDSS Y magnitude (1)
177-184 F8.6 mag e_Ymag ?=0 rms Yncertainty on Ymag
186-193 F8.5 mag Jmag ?=0 UKIDSS J magnitude (1)
195-201 F7.5 mag e_Jmag ?=0 rms uncertainty on Jmag
203-210 F8.5 mag Hmag ?=0 UKIDSS H magnitude (1)
212-218 F7.5 mag e_Hmag ?=0 rms uncertainty on Hmag
220-227 F8.5 mag Kmag ?=0 UKIDSS K magnitude (1)
229-235 F7.5 mag e_Kmag ?=0 rms uncertainty on Kmag
237-242 A6 --- Type Object type
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Note (1): UKIDSS filters 50% cut-off wavelengths (µm):
-------------------
Z 0.83 0.925
Y 0.97 1.07
J 1.17 1.33
H 1.49 1.78
K 2.03 2.37
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(details at http://www.ukidss.org/technical/instrument/filters.html)
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1 I1 --- Sol [0/1]? Adopted (1) or ruled-out (0) solution
3- 6 A4 --- --- [SDSS]
7- 25 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s)
27- 32 A6 --- Type Object type
34- 38 I5 --- MJD SDSS MJD identifier
40- 43 I4 --- Plate SDSS Plate identifier
45- 47 I3 --- Fiber SDSS Fiber identifier
49- 53 I5 K Teff ?=0 Effective temperature
55- 59 I5 K e_Teff ?=0 rms uncertainty on Teff
61- 64 F4.2 [cm/s2] logg ?=0 Surface gravity
66- 69 F4.2 [cm/s2] e_logg ?=0 rms uncertainty on logg
71- 75 F5.2 solMass Mwd ?=0.00 Mass of the white dwarf
77- 80 F4.2 solMass e_Mwd ?=0.00 rms uncertainty on Mwd
82- 85 I4 pc dwd ?=0 Distance of the white dwarf
87- 90 I4 pc e_dwd ?=0 rms uncertainty on dwd
92- 93 I2 -- MType ?=-1 Sub-type of the M dwarf
95- 98 I4 pc dsec ?=0 Distance of the secondary
100-103 I4 pc e_dsec ?=0 rms uncertainty on dsec
105-113 A9 --- Flag Flag(s) for previously studied systems and
resolved WDMS binary pairs (2)
115-118 A4 --- Notes ? Individual notes (3)
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Note (2): Flags as follows:
e = Eisenstein et al. (2006, Cat. J/ApJS/167/40)
s = Silvestri et al. (2007, Cat J/AJ/134/741)
a = Augusteijn et al. (2008, Cat J/A+A/486/843)
h = Heller et al. (2009, Cat. J/A+A/496/191)
re = resolved WDMS binary pairs
Note (3): Notes as follows:
1 = Nearby Galaxy
2 = GALEX magnitudes changes the solution obtained from the fit
3 = No SDSS image available
4 = Star/s nearby
5 = PCEB
6 = One of the spectra comes from a SEGUE plate
7 = Irradiated secondary star
8 = Broken spectrum
9 = Star superimposed in the SDSS image,triple?
10 = Wrong flux calibration in at least one spectrum
11 = Cataclysmic Variable?
12 = Wide binary?
13 = Peculiar secondary star
14 = Detached magnetic Cataclysmic Variable
15 = Bad SDSS image
16 = Low accretion rate polar
17 = PG1159
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [SDSS]
5- 23 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s)
24 A1 --- --- [_]
25 I1 --- m_SDSS [1/5]? Multiplicity index on SDSS
27- 38 F12.4 d HJD Heliocentric Julian date
40- 46 F7.2 km/s RVNa ?=0 Radial velocities measured from the
NaI λλ8183.27,8194.81 doublet
48- 52 F5.2 km/s e_RVNa ?=0 rms uncertainty on RVNa
54- 60 F7.2 km/s RVHa ?=0 Radial velocities measured from the Hα
emission
62- 66 F5.2 km/s e_RVHa ?=0 rms uncertainty on RVHa
68 A1 --- Rel [y/n] Radial velocity values obtained from
spectra that are (y) and that are not (n)
combined from individual exposures taken on
different nights
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History:
From electronic version of the journal
References:
Rebassa-Mansergas et al., Paper I 2007MNRAS.382.1377R 2007MNRAS.382.1377R, J/MNRAS/382/1377
Schreiber et al, Paper II 2008A&A...484..441S 2008A&A...484..441S
Rebassa-Mansergas et al., Paper III 2008MNRAS.390.1635R 2008MNRAS.390.1635R
Nebot Gomez-Moran et al., Paper IV 2009A&A...495..561N 2009A&A...495..561N
Pyrzas et al., Paper V 2009MNRAS.394..978P 2009MNRAS.394..978P
Schwope et al., Paper VI 2009A&A...500..867S 2009A&A...500..867S
(End) Patricia Vannier [CDS] 19-Mar-2010