J/AJ/134/741 New close binary systems from the SDSS DR5 (Silvestri+, 2007)
New close binary systems from the SDSS-I (Data release five) and the search for
magnetic white dwarfs in cataclysmic variable progenitor systems.
Silvestri N.M., Lemagie M.P., Hawley S.L., West A.A., Schmidt G.D.,
Liebert J., Szkody P., Mannikko L., Wolfe M.A., Barentine J.C.,
Brewington H.J., Harvanek M., Krzesinski J., Long D., Schneider D.P.,
Snedden S.A.
<Astron. J., 134, 741-748 (2007)>
=2007AJ....134..741S 2007AJ....134..741S
ADC_Keywords: Stars, double and multiple ; Stars, white dwarf ; Stars, M-type ;
Stars, dwarfs ; Photometry, SDSS
Keywords: binaries: close - novae, cataclysmic variables -
stars: low-mass, brown dwarfs - stars: magnetic fields - white dwarfs
Abstract:
We present the latest catalog of more than 1200 spectroscopically
selected close binary systems observed with the Sloan Digital Sky
Survey through Data Release Five. We use the catalog to search for
magnetic white dwarfs in cataclysmic variable progenitor systems.
Given that approximately 25% of cataclysmic variables contain a
magnetic white dwarf, and that our large sample of close binary
systems should contain many progenitors of cataclysmic variables, it
is quite surprising that we find only two potential magnetic white
dwarfs in this sample.
Description:
The combined properties of the majority of close binaries in this
paper are discussed in detail in Raymond et al. (2003AJ....125.2621R 2003AJ....125.2621R)
and Silvestri et al. (2006, Cat. J/AJ/131/1674). The Silvestri et
al. (2006, Cat. J/AJ/131/1674) catalog was based on a preliminary
list of spectroscopic plates released internally to the collaboration
and as such does not include objects from ∼200 plates released with
the final public Data Release Four (DR4; Adelman-McCarthy et al.,
2006, Cat. II/267).
The list of 1253 potential close binary systems given in Table 1
includes objects from all plates released with the public DR5, thereby
superseding the Silvestri et al. (2006, Cat. J/AJ/131/1674) DR4
catalog.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 273 1228 The SDSS-I DR5 catalog of close binary systems
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See also:
II/276 : The SDSS Photometric Catalog, Release 5 (Adelman-McCarthy+, 2007)
III/70 : Luyten's White Dwarf Catalogues (Luyten, 1970-77)
J/AJ/124/1118 : High-velocity white dwarfs radial velocities (Silvestri+ 2002)
J/ApJ/586/1356 : White dwarfs with cool companions (Wachter+, 2003)
J/AJ/126/1023 : White Dwarfs in the SDSS (Harris+, 2003)
J/ApJ/607/426 : Catalog of white dwarfs in SDSS-DR1 (Kleinman+, 2004)
J/AJ/129/2428 : M dwarf-white dwarf binary systems (Silvestri+, 2005)
J/AJ/131/582 : Cool white dwarfs in the SDSS (Kilic+, 2006)
J/AJ/131/1674 : Close binary systems from SDSS DR4 (Silvestri+, 2006)
http://www.sdss.org : SDSS Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- SDSS Source identifier (HHMMSS.ss+DDMMSS.s, J2000)
21- 24 I4 --- Plate Plate number
26- 30 I5 d MJD Modified Julian Date
32- 34 I3 --- Fiber Fiber identification
36- 44 A9 --- SpType Spectral type of white dwarf+secondary (1)
46- 54 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
56- 64 F9.5 deg DEdeg Declination in decimal degrees (J2000)
66- 71 F6.3 mag umag ? SDSS u band PSF magnitude
73- 78 F6.3 mag e_umag ? The 1σ error in umag
80- 84 F5.3 mag Au ? The u band extinction
86- 91 F6.3 mag gmag ? SDSS g band PSF magnitude
93- 98 F6.3 mag e_gmag ? The 1σ error in gmag
100-104 F5.3 mag Ag ? The g band extinction
106-111 F6.3 mag rmag ? SDSS r band PSF magnitude
113-118 F6.3 mag e_rmag ? The 1σ error in rmag
120-124 F5.3 mag Ar ? The r band extinction
126-131 F6.3 mag imag ? SDSS i band PSF magnitude
133-138 F6.3 mag e_imag ? The 1σ error in imag
140-144 F5.3 mag Ai ? The i band extinction
146-151 F6.3 mag zmag ? SDSS z band PSF magnitude
153-158 F6.3 mag e_zmag ? The 1σ error in zmag
160-164 F5.3 mag Az ? The z band extinction
166-225 A60 --- Refs References (2)
227-273 A47 --- Note An additional note (3)
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Note (1): In the by-eye classification of the object, a spectral type
followed by a colon indicates uncertainty and by a "e" indicates
emission detected visually.
Note (2): References as follows:
EDR = Stoughton et al., 2002AJ....123..485S 2002AJ....123..485S (Early Data Release)
DR1 = Abazajian et al., 2003AJ....126.2081A 2003AJ....126.2081A (First Data Release)
DR2 = Abazajian et al., 2004AJ....128..502A 2004AJ....128..502A (Second Data Release)
DR3 = Abazajian et al., 2005AJ....129.1755A 2005AJ....129.1755A, Cat. II/259
DR4 = Adelman-McCarthy et al., 2006ApJS..162...38A 2006ApJS..162...38A, Cat. II/267
DR5 = Adelman-McCarthy et al., 2007ApJS..172..634A 2007ApJS..172..634A, Cat. II/276
R03 = published in Raymond et al., 2003AJ....125.2621R 2003AJ....125.2621R
K04 = published in Kleinman et al., 2004, Cat. J/ApJ/607/426
B05 = published in van den Besselaar et al., 2005A&A...434L..13V 2005A&A...434L..13V
Sc05 = published in Schmidt et al., 2005ApJ...630L.173S 2005ApJ...630L.173S
S06 = published in Silvestri et al., 2006, J/AJ/131/1674
E06 = published in Eisenstein et al., 2006, Cat. J/ApJS/167/40
P05 = published in Pourbaix et al., 2005, Cat. J/A+A/444/643
KM = published in Koen & Maxted, 2006MNRAS.371.1675K 2006MNRAS.371.1675K
SN = published in Schuh & Nagel, 2007, ASP Conf. Ser. 372.
da06 = R. da Silva (priv. comm., 2006).
Note (3): FM = quoted ugriz values are SDSS fiber magnitudes
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History:
* 10-Nov-2009: From electronic version of the journal
* 04-Nov-2010: 3 SDSS names corrected
(015225.39-00588.6 into 015225.39-005808.6
02253.03+005456.3 into 022503.03+005456.3
0251407.80-000003.2 into 025147.80-000003.2)
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 30-Sep-2009