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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
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:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 121 1475 Magnitudes and radial velocities
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
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 5- 23 A19 --- SDSS SDSS designation ( 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
Acknowledgements: Dimitri Pourbaix, pourbaix(at)
(End) Patricia Vannier [CDS] 05-Sep-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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