J/A+A/444/643 Candidate spectroscopic binaries in SDSS (Pourbaix+, 2005)
Candidate spectroscopic binaries in the Sloan Digital Sky Survey
Pourbaix D., Knapp G.R., Szkody P., Ivezic Z., Kleinman S.J., Long D.,
Snedden S.A., Nitta A., Harvanek M., Krzesinski J., Brewington H.J.,
Barentine J.C., Neilsen E.H., Brinkman J.
<Astron. Astrophys. 444, 643 (2005)>
=2005A&A...444..643P 2005A&A...444..643P
ADC_Keywords: Surveys ; Binaries, spectroscopic ; Radial velocities ;
Photometry, SDSS
Keywords: instrumentation: spectrographs - stars: binaries: spectroscopic
Abstract:
We have examined the radial velocity data for stars spectroscopically
observed by the Sloan Digital Sky Survey (SDSS) more than once to
investigate the incidence of spectroscopic binaries, and to evaluate
the accuracy of the SDSS stellar radial velocities.
Description:
Table of the radial velocities of the 675 objects from the SDSS data
with velocity excursions large enough that they are likely to be
spectroscopic binaries. Besides the equatorial positions, the table
contains the magnitudes in the five photometric filters (u,g,r,i,z),
the epoch heliocentric radial velocity and its uncertainty.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 121 1475 Magnitudes and radial velocities
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See also:
II/259 : The SDSS Photometric Catalog, Release 3 (Abazajian+ 2005)
J/A+A/423/755 : Color-Induced Displacement double stars in SDSS
(Pourbaix+, 2004)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [SDSS]
5- 23 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s)
25- 35 F11.7 deg RAdeg Right ascension (J2000)
37- 47 F11.7 deg DEdeg Declination (J2000)
49- 52 I4 --- NPlate Plate number
54- 56 I3 --- NFiber Fiber number
58- 65 I8 d Epoch MJD of SDSS spectroscopic observation
67- 71 F5.2 mag umag ?=99.00 SDSS u magnitude
73- 77 F5.2 mag gmag SDSS g magnitude
79- 83 F5.2 mag rmag SDSS r magnitude
85- 89 F5.2 mag imag SDSS i magnitude
91- 95 F5.2 mag zmag SDSS z magnitude
97-102 F6.1 km/s HRV Heliocentric radial velocity
104-107 F4.1 km/s e_HRV Uncertainty on RV
109-121 A13 --- Type Variable type
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Acknowledgements: Dimitri Pourbaix, pourbaix(at)astro.ulb.ac.be
(End) Patricia Vannier [CDS] 05-Sep-2005