Radial velocities of 1453 FGK J/MNRAS/472/4193 ivo://CDS.VizieR/J/MNRAS/472/4193 doi:10.26093/cds/vizier.74724193 CDS Rebassa-Mansergas A. Ren J.J. Irawati P. Garcia-berro E. Parsons S.G.,Schreiber M.R. Gansicke B.T. Rodriguez-Gil P. Liu X. Manser C.,Nevado S.P. Jimenez-Ibarra F. Costero R. Echevarria J. Michel R.,Zorotovic M. Hollands M. Han Z. Luo A. Villaver E. Kong X. 2024-08-17T20:21:05Z 2020-08-11T10:16:53Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr surveys multiple-stars white-dwarf-stars radial-velocity We present the second paper of a series of publications aiming at obtaining a better understanding regarding the nature of type Ia supernovae (SN Ia) progenitors by studying a large sample of detached F, G and K main-sequence stars in close orbits with white dwarf companions (i.e. WD+FGK binaries). We employ the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) data release 4 spectroscopic data base together with Galaxy Evolution Explorer (GALEX) ultraviolet fluxes to identify 1549 WD+FGK binary candidates (1057 of which are new), thus doubling the number of known sources. We measure the radial velocities of 1453 of these binaries from the available LAMOST spectra and/or from spectra obtained by us at a wide variety of different telescopes around the globe. The analysis of the radial velocity data allows us to identify 24 systems displaying more than 3{sigma} radial velocity variation that we classify as close binaries. We also discuss the fraction of close binaries among WD+FGK systems, which we find to be ~10 per cent, and demonstrate that high-resolution spectroscopy is required to efficiently identify double-degenerate SN Ia progenitor candidates. 2017MNRAS.472.4193R https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/472/4193 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/153 : LAMOST DR4 catalogs (Luo+, 2018) J/MNRAS/463/2125 : White dwarf binary pathways survey (Parsons+, 2016) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/472/4193 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/472/4193 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/472/4193 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/472/4193 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/472/4193 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/472/4193 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/472/4193/table1 (Selected 2168 spectra of 1549 unique LAMOST DR4 WD+FGK binary candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/472/4193/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/472/4193/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/472/4193/table1? 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28037 28040 28057-28058 28068 28112 28132 28144-28145 28149 28171 28203 28207 28209 28265 28270 28273 28276 28279 28307 28340 28357 28370 28386 28398 28401-28402 28406 28409 28420 28423 28434 28455 28467 28491 28497 28500 28512 28515 28519 28523-28524 28526 28554 28556 28587 28589 28602 28604 28616 28619 28654 28668 30975 31135 31170 31194 31205 31219 31314 31317 31339 31354 31374 31395-31397 31400 31404 31407-31408 31422 31433 31437 31442 31481 31490 31532 31538 31543 31546 31564 31581 31623 31640 31656 31676 31695 31701 31710 31805 31816 31889 31905-31906 31998 32163 32268 32275 32332 32352 32360 32501 32530 32653 32658 32665 32692 32703 36715 36818 40918 40921 40934 40949-40950 40956 45051-45053 49011 49093 7.447298006782415e-19 1.4134638842407062e-18 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/472/4193?format=ascii default J/MNRAS/472/4193/table1 Selected 2168 spectra of 1549 unique LAMOST DR4 WD+FGK binary candidates MJD LAMOST MJD number time.epoch char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RV indicates radial velocity measurements of table 3 meta.ref.url char Name Name, JHHMMSS.ss+DDMMSS.s meta.id;meta.main char primary RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main FUV GALEX FUV magnitude mag phot.mag;em.UV.100-200nm double e_FUV GALEX FUV magnitude error mag stat.error double NUV GALEX NUV magnitude mag phot.mag;em.UV double e_NUV GALEX NUV magnitude error mag stat.error double mag ? Magnitude in Band mag phot.mag double nullable e_mag ? Magnitude in Band error mag stat.error;phot.mag double nullable Band Band of magnitude (1) instr.bandpass char Plateid LAMOST Plate designation meta.id char Spid LAMOST Sp designation meta.id char Fiberid LAMOST Fiber number meta.id int S/Nu LAMOST signal-to-noise ration in u band stat.snr;pos.cartesian.x float S/Ng LAMOST signal-to-noise ration in g band stat.snr;instr.bandpass float S/Nr LAMOST signal-to-noise ration in r band stat.snr;instr.bandpass float S/Ni LAMOST signal-to-noise ration in i band stat.snr;instr.bandpass float S/Nz LAMOST signal-to-noise ration in z band stat.snr;pos.cartesian.z float Teff Effective temperature K phys.temperature.effective float e_Teff ? Effective temperature error K stat.error;phys.temperature.effective double nullable logg Surface gravity log(cm.s**-2) phys.gravity float e_logg ? Surface gravity error log(cm.s**-2) stat.error double nullable [Fe/H] Metallicity phys.abund.Z float e_[Fe/H] ? Metallicity error stat.error;phys.abund.Fe double nullable SClass Simbad class src.class char
J/MNRAS/472/4193/table3 The radial velocities of the 1453 LAMOST WD+FGK binary candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int HJD Heliocentric Julian date d time.epoch double RV ? Radial velocity km/s phys.veloc;pos.heliocentric double nullable e_RV ? Radial velocity error km/s stat.error double nullable Name Name, JHHMMSS.ss+DDMMSS.s meta.id;meta.main char Tel Telescopes used for obtaining the spectra instr.setup char