J/AJ/144/81ivo://CDS.VizieR/J/AJ/144/81doi:10.26093/cds/vizier.51440081CDSThorstensen J.R.Skinner J.N.2020-08-06T16:13:46Z2013-12-04T12:02:21ZCDS support team

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

cds-question@unistra.frcataclysmic-variable-starsnovaeinfrared-photometryvisible-astronomybroad-band-photometryline-intensitiesradial-velocityThe Catalina Real Time Survey (CRTS) has found over 500 cataclysmic variable (CV) candidates, most of which were previously unknown. We report here on follow-up spectroscopy of 36 of the brighter objects. Nearly all of the spectra are typical of CVs at minimum light. One object appears to be a flare star, while another has a spectrum consistent with a CV but lies, intriguingly, at the center of a small nebulosity. We measured orbital periods for eight of the CVs, and estimated distances for two based on the spectra of their secondary stars. In addition to the spectra, we obtained direct imaging for an overlapping sample of 37 objects, for which we give magnitudes and colors. Most of our new orbital periods are shortward of the so-called period gap from roughly 2 to 3hr. By considering the cross-identifications between the Catalina objects and other catalogs such as the Sloan Digital Sky Survey, we argue that a large number of CVs remain uncataloged. By comparing the CRTS sample to lists of previously known CVs that CRTS does not recover, we find that the CRTS is biased toward large outburst amplitudes (and hence shorter orbital periods). We speculate that this is a consequence of the survey cadence.2012AJ....144...81Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/81CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/cb : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2013)V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)V/123 : Catalog of Cataclysmic Variables (Downes+ 2001-2006)J/MNRAS/421/2414 : Faint cataclysmic variables from SDSS (Woudt+, 2012)J/AJ/142/181 : CVs from SDSS. VIII. The final year (Szkody+, 2011)J/ApJ/696/870 : Catalina Real-time Transient Survey (CRTS) (Drake+, 2009)J/AJ/134/185 : Cataclysmic variables from SDSS-DR5 (Szkody+, 2007)http://crts.caltech.edu/ : Catalina Real Time Survey (CRTS)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/81https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/81http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/81https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/81https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/81http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/81GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/81/table1 (List of the observed objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/81/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/81/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/81/table1?GETtext/xml+votable180.050000true12.970333320.67150.005555555555555556Cone search capability for table J/AJ/144/81/table6 (SDSS classifications and cross-match)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/81/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/81/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/81/table6?GETtext/xml+votable180.050000true4.737208334.91230560.0055555555555555566/85 381 733 839 1560 2209 2360 4120 4123 4129 4138 4144 4167 4173 4174 4195 4256 4294 4296 4336 4341 4367 4386 4399 4453 4479 4515 4530 4603 4607 4622 4650 4723 4726 4740 4747 4757 4761 4766 4769 4818 4844 4860 4905 4964 4988 4999 5005 5058 5062 5115 5120 5129 5189 5191 5197 5210 5345 5409 5457 5485 5558 5570 5584 5596 5719 5727 5756 5808 5833 5839 5864 5918 6036 6052 6076 6111 6131 6235 6237 6242 6244 6386 6456 6467 6528 6546 6567 6570 6588 6598 6599 6608 6621 6637 6643 6760 7041 7164 7168 7172 7194 7211 7233 7240 7248 7256 7306 7320 7348 7371 7390 7465 7514 7518 7560 7607 8224 8265 8268 8269 8281 8296 8359 8474 8503 8520 8534 8545 8552 8559 8562 8566 8614 8630 8688 8693 8830 8877 8977 9165 9231 9267 9301 9309 9311 9333 9340 9419 9441 9467 9618 9738 9747 9765 9774 9792 9829 9832 9849 9998 10085 10214 10232 10281 10434 10598 10938 10977 11072 11112 11168 11217 11230 11280 11319 11324 11333 11351 11365 11456 11489 11838 11916 11929 11931 12288 12289 12408 12481 12511 12556 12615 12646 12748 13374 13670 13810 16272 17242 17475 17515 17600 17767 17818 17983 17986 18027 18061 18071 18303 18329 18354 18520 18604 18844 18859 18862 19366 19385 19418 19455 19791 19822 19828 20034 20154 20168 20436 21823 21879 22010 22360 22363 22485 22716 22838 22863 22869 22896 22901 23039 23050 23187 23275 23301 23377 23396 23435 23468 24113 24222 24997 25452 25506 25909 25934 26157 26208 26316 26328 26379 26395 26498 26586 26588 26995 27004 27223 27254 27294 27314 27343 27386 27419 27455 27482 27545 27612 27671 27779 28047 28082 28104 28127 28128 28194 28221 28396 28423 28501 28561 30041 30044 30895 31145 31166 31309 31321 31331 31357 31441 31464 31517 31617 31642 31652 31684 31689 31696 31699 31715 32273 32290 32294 32322 32360 32378 32408 32409 32432 32436 32480 32660 36719 40764 40925 44382 48849 49088 49100 49120 49123 49129 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/81?format=asciiOpticalInfrareddefaultJ/AJ/144/81/table1List of the observed objectsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCRTSCatalina Real Time Survey (CRTS) name (encodes the date of outburst before the colon, and the J2000 celestial coordinates after the colon)meta.idcharNs[1/52]? Total number of spectra obtainedmeta.numberintnullablef_CRTS[b] CSS2029-15 has been named SY Capmeta.codecharCSSCataclysmic variable identifier (JHHMM+DD)meta.id;meta.maincharprimaryNo[0/15] Number of outbursts (from a perusal of light curves; see Section 5.2 for more details)meta.numberintn_No[a] CSS1219-19 shows a secular increase from m~19.5 to m~17.5, with short-term variability, but no clearly defined outburstsmeta.notecharmMaxMagnitude at maximum from CRTSmagphot.magfloatmMinMagnitude at minimum from CRTSmagphot.magfloatNi[1/8]? Total number of direct images obtainedmeta.numberintnullableVmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/AJ/144/81/table4Fits to radial velocitiesVCVelocity curvemeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSSCatalina Survey Cataclysmic variable identifiermeta.id;meta.maincharSpecSpectra (emn=emission, absn=absorption, comb=combined)meta.codecharT0? Heliocentric Julian Date; HJD-2400000 (the epoch is chosen to be near the center of the time interval covered by the data, and within one cycle of an actual observation) (1)dtime.epochdoublenullablee_T0? Uncertainty in T0dstat.errorfloatnullablePerPeriod (1)dtime.perioddoublee_PerUncertainty in Perdstat.errordoubleK? Ksin parameter (1)km/sphys.velocintnullablee_K? Uncertainty in Kkm/sstat.errorintnullabley? {gamma} parameter (1)km/sphys.velocintnullablee_y? Uncertainty in ykm/sstat.error;pos.cartesian.yintnullableN? Number of spectra usedmeta.numberintnullablerms? rms residual of the fit ({sigma})km/sstat.fit.residualintnullableJ/AJ/144/81/table2Summary of spectroscopyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSSCatalina Survey Cataclysmic variable identifiermeta.id;meta.maincharJDObservation Julian Date; JD-2450000 (1)dtime.epochfloatJD2? 2nd observation Julian Date; JD-2450000dtime.epochintnullablef_JD2[e] CSS1055+09 was observed on two nightsmeta.codecharInInstrument (MN=Modular spectrograph with detector Nellie; MT=Modular spectrograph with detector Templeton; OS=OSMOS, Ohio State Multi-Object Spectrograph)meta.id;instrcharExpExposure timestime.duration;obs.exposureintVmag? V magnitudes synthetized from the spectrum (they are ideally good to +/-0.2mag, but larger errors are possible because of clouds and seeing)magphot.mag;em.opt.Vfloatnullablef_Vmag[d] magnitudes could not be synthesized for the spectra of CSS2213+17 and CSS2227+28 because of condensation on the detector windowmeta.codecharEWHaH{alpha} equivalent width (positive for emission)0.1nmspect.line.eqWidthfloatf_EWHaFlag on EWHa (2)meta.codecharJ/AJ/144/81/table5Standardized magnitudesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSSCataclysmic variable identifiermeta.id;meta.maincharJDObservation Julian Date; JD-2450000dtime.epochcharB-V? The (B-V) color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-V? Statistical uncertainty in B-V (1)magstat.error;phot.color;em.opt.BfloatnullableVmagV magnitudemagphot.mag;em.opt.Vfloate_VmagStatistical uncertainty in Vmag (1)magstat.error;phot.magfloatV-R? The (V-R) color indexmagphot.color;em.opt.V;em.opt.Rfloatnullablee_V-R? Statistical uncertainty in V-R (1)magstat.error;phot.color;em.opt.VfloatnullableV-I? The (V-I) color indexmagphot.color;em.opt.V;em.opt.Ifloatnullablee_V-I? Statistical uncertainty in V-I (1)magstat.error;phot.color;em.opt.VfloatnullableJ/AJ/144/81/table3Radial VelocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSSCatalina Survey Cataclysmic variable identifiermeta.id;meta.maincharHJDHeliocentric Julian Date of mid-exposure in UTC time system; HJD-2400000dtime.epochdoubleRVa? Absorption line radial velocitykm/sphys.veloc;pos.heliocentricintnullablee_RVa? The 1{sigma} error in RVakm/sstat.errorintnullableRVe? Emission line radial velocitykm/sphys.veloc;pos.heliocentricintnullablee_RVe? The 1{sigma} error in RVekm/sstat.errorintnullableJ/AJ/144/81/table6SDSS classifications and cross-matchr_SDSSReference (paper number in the SzkodyI-VIII series in which the object was published) (1)meta.ref;pos.frameintCRTSObject also found by Catalina Real Time Survey (CRTS)? (Yes or No)meta.codecharTypeEstimate of the cataclysmic variable type (2)meta.code;src.varcharDR9Display the data from the photometric SDSS-DR9 catalog within 1.5"meta.ref.urlcharSloanDisplay the SDSS data for this cataclysmic variablemeta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idchar_RAPositions from SDSS name (right ascension part)degpos.eq.ra;meta.main_DEPositions from SDSS name (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS identifier of the cataclysmic variable; (JHHMMSS.ss+DDMMSS.s)meta.id;meta.mainchar