J/ApJ/721/412ivo://CDS.VizieR/J/ApJ/721/412doi:10.26093/cds/vizier.17210412CDSBhalerao V.B.van Kerkwijk M.H.Harrison F.A.Kasliwal M.M.,Kulkarni S.R.Rana V.R.2017-06-21T08:22:11Z2012-08-01T09:12:13ZCDS support team

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

cds-question@unistra.frcataclysmic-variable-starsinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityvariable-starsm-starsx-ray-sourcesWe report the discovery of 1RXS J173006.4+033813, a polar cataclysmic variable with a period of 120.21 minutes. The white dwarf primary has a magnetic field of B=42^+6^_-5_MG and the secondary is an M3 dwarf. The system shows highly symmetric double-peaked photometric modulation in the active state as well as in quiescence. These arise from a combination of cyclotron beaming and ellipsoidal modulation. The projected orbital velocity of the secondary is K_2_=390+/-4km/s. We place an upper limit of 830+/-65pc on the distance.2010ApJ...721..412Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/721/412CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/cb : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2012)J/ApJ/714/1424 : Isolated neutron stars from Rosat and Swift (Turner+, 2010)J/ApJS/184/138 : XID II: RASS-2MASS cross-association (Haakonsen+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/721/412https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/721/412http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/721/412https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/721/412https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/721/412http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/721/412GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/721/412/table2 (Photometry of reference stars for 1RXS J173006.4+033813)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/721/412/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/721/412/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/721/412/table2?GETtext/xml+votable180.050000true262.5061253.643750.0055555555555555566/31185https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/721/412?format=asciiX-rayOpticalInfrareddefaultJ/ApJ/721/412/table1Photometry of 1RXS J173006.4+033813recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateUT date of the observationtime.epoch;obsnullableHJDHeliocentric Julian Date of observation startdtime.epochdoubleFiltSDSS filter Filter name (1)meta.id;instr.filtercharExpExposure timestime.duration;obs.exposureintmag[-0.22/103.31] Observed magnitude in Filtmagphot.magfloate_mag[0.03/148.8] Relative photometric error in mag (G1)magstat.error;phot.magfloatJ/ApJ/721/412/table2Photometry of reference stars for 1RXS J173006.4+033813SimbadNameSimbad column added by the CDSmeta.idchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentifier (1)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maingmag? The g' band magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag? Relative photometry error in gmag (G1)magstat.error;phot.mag;em.opt.Bfloatnullablermag? The r' band magnitudemagphot.mag;em.opt.Rfloatnullablee_rmag? Relative photometry error in rmag (G1)magstat.error;phot.mag;em.opt.RfloatnullableimagThe i' band magnitudemagphot.mag;em.opt.Ifloate_imagRelative photometry error in imag (G1)magstat.error;phot.mag;em.opt.IfloatCatCross-match within 4" with NOMAD and USNO-B catalogsmeta.ref.urlintnullableJ/ApJ/721/412/table5Radial velocity of the M dwarfInstInstrumentmeta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleExpExposure timestime.duration;obs.exposureintRVBarycentric radial velocitykm/sphys.veloc;pos.heliocentricinte_RVRV uncertaintykm/sstat.errorintn_Inst[abc] instrument characteristics (1)meta.notechar