J/MNRAS/458/3808 DR9-12 SDSS WDMS binaries (Rebassa-Mansergas+, 2016)
The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries:
new identifications from DR 9-12.
Rebassa-Mansergas A., Ren J.J., Parsons S.G., Gansicke B.T.,
Schreiber M.R., Garcia-Berro E., Liu X.-W., Koester D.
<Mon. Not. R. Astron. Soc., 458, 3808-3819 (2016)>
=2016MNRAS.458.3808R 2016MNRAS.458.3808R (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Stars, white dwarf ; Stars, dwarfs ;
Photometry, SDSS
Keywords: binaries: close - binaries: spectroscopic - stars: low-mass -
white dwarfs
Abstract:
We present an updated version of the spectroscopic catalogue of white
dwarf-main-sequence (WDMS) binaries from the Sloan Digital Sky Survey
(SDSS). We identify 938 WDMS binaries within the data releases
(DR) 9-12 of SDSS plus 40 objects from DR 1-8 that we missed in our
previous works, 646 of which are new. The total number of
spectroscopic SDSS WDMS binaries increases to 3294. This is by far the
largest and most homogeneous sample of compact binaries currently
available. We use a decomposition/fitting routine to derive the
stellar parameters of all systems identified here (white dwarf
effective temperatures, surface gravities and masses, and secondary
star spectral types). The analysis of the corresponding stellar
parameter distributions shows that the SDSS WDMS binary population is
seriously affected by selection effects. We also measure the Na I
λλ 8183.27, 8194.81 absorption doublet and H α
emission radial velocities (RV) from all SDSS WDMS binary spectra
identified in this work. 98 objects are found to display RV
variations, 62 of which are new. The RV data are sufficient enough to
estimate the orbital periods of three close binaries.
Description:
In this work, we search for WDMS binaries within the spectroscopic
data base of the SDSS III, i.e. the ninth (SDSS-III Collaboration et
al. 2014ApJS..211...17A 2014ApJS..211...17A), tenth (Ahn et al. 2014ApJS..211...17A 2014ApJS..211...17A),
eleventh and twelfth (Alam et al. 2015ApJS..219...12A 2015ApJS..219...12A) DRs of the
SDSS. In particular, we mined the optical (R∼2000) spectra obtained by
the Sloan Exploration of Galactic Understanding and Evolution 2 survey
(SEGUE-2; Rockosi et al., in preparation) and the Baryon Oscillation
Spectroscopic Survey (BOSS; Dawson et al. 2013AJ....145...10D 2013AJ....145...10D).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tables1.dat 98 978 *Object name, coordinates and SDSS ugriz
magnitudes of the 978 DR9-12 SDSS WDMS binaries
found in this work
--------------------------------------------------------------------------------
Note on tables1.dat: The total number of spectroscopic SDSS WDMS binaries
is 3294.
--------------------------------------------------------------------------------
See also:
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
J/A+A/496/191 : Spectral analysis of 636 SDSS WD-M binaries (Heller+, 2009)
J/AJ/125/2621 : SDSS WD-M binary parameters (Raymond+, 2003)
J/MNRAS/382/515 : SDSS ultracool and halo WD candidates (Vidrih+, 2007)
J/MNRAS/382/1377 : SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2007)
J/ApJ/730/128 : Spectroscopy of DA WD from the SDSS-DR4 (Tremblay+, 2011)
J/MNRAS/402/620 : SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2010)
J/A+A/536/A43 : SDSS WD main-sequence binaries (Nebot Gomez-Moran+, 2011)
Byte-by-byte Description of file: tables1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [SDSS]
5- 23 A19 --- SDSS SDSS name (JHHMMSS.ss+DDMMSS.s)
26- 35 F10.6 deg RAdeg Right ascension (J2000)
37- 46 F10.6 deg DEdeg Declination (J2000)
50- 58 F9.6 mag umag SDSS u magnitude
60- 68 F9.6 mag gmag SDSS g magnitude
70- 78 F9.6 mag rmag SDSS r magnitude
80- 88 F9.6 mag imag SDSS i magnitude
90- 98 F9.6 mag zmag SDSS z magnitude
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 06-Jun-2017