J/A+A/562/A95ivo://CDS.VizieR/J/A+A/562/A95doi:10.26093/cds/vizier.35620095CDSGeier S.Ostensen R.H.Heber U.Kupfer T.Maxted P.F.L.Barlow B.N.,Vuckovic M.Tillich A.Muller S.Edelmann H.Classen L.McLeod A.F.2017-09-22T16:16:12Z2014-02-13T08:30:41ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frspectroscopic-binary-starssubdwarf-starsradial-velocityThe project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars (sdBs) with massive compact companions such as white dwarfs, neutron stars, or stellar-mass black holes. In a supplementary programme we obtained time-resolved spectroscopy of known hot subdwarf binary candidates. Here we present orbital solutions of eight close sdB binaries with orbital periods ranging from 0.1 to 10 days, which allow us to derive lower limits on the masses of their companions. Additionally, a dedicated photometric follow-up campaign was conducted to obtain light curves of the reflection-effect binary HS 2043+0615. We are able to constrain the most likely nature of the companions in all cases but one, making use of information derived from photometry and spectroscopy. Four sdBs have white dwarf companions, while another three are orbited by low-mass main sequence stars of spectral type M.2014A&A...562A..95Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/562/A95CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/430/223 : Parameters of cool companions of sdB stars (Lisker+, 2005)J/A+A/559/A35 : FBS 0117+396 pulsating sdB star photometry (Ostensen+, 2013)J/AJ/137/3181 : HW Vir differential VR light curves (Lee+, 2009)J/MNRAS/408/L51 : 2M1938+4603 (KIC 9472174) eclipses (Ostensen+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/562/A95https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/562/A95http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/562/A95https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/562/A95https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/562/A95http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/562/A95GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/562/A95/table1 (Derived orbital solutions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/562/A95/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/562/A95/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/562/A95/table1?GETtext/xml+votable180.050000true214.5872083-3.38169440.0055555555555555566/4604 12334 20224 23510 25905 28880 46295 48137https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/562/A95?format=asciiOpticaldefaultJ/A+A/562/A95/table1Derived orbital solutionsDEJ2000Simbad Declination (J2000)pos.eq.dec;meta.mainT0Time of maximum light (HJD-2450000)dtime.epochdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCPlot the Radial Velocity curvemeta.ref.urlcharNameObject namemeta.id;meta.maincharprimaryn_Name[*] *: For BPS CS 22879-149, two orbital solutionsmeta.notecharRAJ2000Simbad Right ascension (J2000)pos.eq.ra;meta.maine_T0? rms uncertainty on T0dstat.errorfloatnullablePerPerioddtime.perioddoublee_Per? rms uncertainty on Perdstat.errordoublenullablegammaSystemic radial velocity, {gamma}km/sphys.velocfloate_gammarms uncertainty on gamma velocitykm/sstat.errorfloatKRadial velocity semi-amplitude, Kkm/sspect.dopplerVelocfloate_Krms uncertainty on Kkm/sstat.errorfloatenormSystematic error adopted to normalise the reduced chi^2^km/sstat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/562/A95/rvRadial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharHJDHeliocentric Julian date at mid-exposuretime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RV1-{sigma} uncertainty of radial velocitykm/sstat.errorfloatInstName of instrument used (EMMI, EFOSC2, FEROS, Goodman, ISIS, TWIN, UVES or McDonald)meta.id;instr.setupchar