J/AJ/165/148ivo://CDS.VizieR/J/AJ/165/148doi:10.26093/cds/vizier.51650148CDSHou W.Luo A.-L.Dong Y.-Q.Chen X.-L.Bai Z.-R.2024-10-21T20:11:50Z2023-09-08T06:11:24ZCDS support team

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

cds-question@unistra.frvariable-starsvisible-astronomyspectroscopyphotometryWe examine a sample of 340 cataclysmic variables (CVs) from the latest data release of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey, along with 18 objects that are newly classified as CVs. In this paper, we focus on investigating the photometric behaviors of these CVs using data from time-domain surveys. The orbital periods of three new and five previously known objects are determined from the long-term light curves displaying eclipses or ellipsoidal variations, and/or time-resolved spectra from LAMOST. For another 16 CVs with measured periods, it is more reliable to obtain consistent periods using light curves from different surveys, as the periods derived from single-site data are still questionable. Follow-up observations are needed to confirm whether the periods have physical meanings or are orbital-related. In our sample, we find that most of the objects have longer periods above the 2~3hr gap. Besides period estimates, we also carry out a separate detailed analysis of some valuable CVs, in terms of spectral characteristics and subtype determination. Finally, we discuss the observational properties of this sample, including the distributions of orbital periods, absolute magnitudes, and the statistical properties of each subclass of CVs. In addition, we pick out six non-CV systems, including five illumination-effect binaries, as well as one hot subdwarf, that we came across when searching for CVs, and we investigate their properties based on the spectra and photometric data.2023AJ....165..148Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/148CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)I/345 : Gaia DR2 (Gaia Collaboration, 2018)V/110 : Catalog of Cataclysmic Variables (Downes+ 2001)V/123 : Catalog of Cataclysmic Variables (Downes+ 2001-2006)V/146 : LAMOST DR1 catalogs (Luo+, 2015)J/ApJ/696/870 : Catalina Real-time Transient Survey (CRTS) (Drake+, 2009)J/AJ/142/181 : CVs from SDSS. VIII. The final year (Szkody+, 2011)J/MNRAS/435/707 : H{alpha} velocity curves of IM Eri (Armstrong+, 2013)J/MNRAS/443/3174 : 72 faint CV candidates in CRTS (Breedt+, 2014)J/MNRAS/441/1186 : Cataclysmic variables from CRTS (Drake+, 2014)J/MNRAS/452/765 : White dwarf cand. using LAMOST DR3 (Gentile Fusillo+, 2015)J/AJ/150/170 : Radial velocities of 7 cataclysmic binaries (Halpern+, 2015)J/MNRAS/456/4441 : Outburst cat. of cataclysmic variables (Coppejans+, 2016)J/ApJ/881/7 : Hot subdwarf stars from LAMOST DR5 & Gaia DR2 (Luo+, 2019)J/MNRAS/492/L40 : Disentangling cataclysmic variables Gaia DR2 (Abril+, 2020)J/AJ/159/43 : Spectro. identified CVs from LAMOST survey. I. (Hou+, 2020)J/MNRAS/491/2217 : Study of spiral density waves in CVs (Ruiz-Carmona+, 2020)J/AJ/159/198 : Cataclysmic variables in ZTF 1yr (2018-2019) (Szkody+, 2020)J/AJ/160/151 : RVs of 5 cataclysmic variable candidates (Thorstensen, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/148https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/148http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/148https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/148https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/148http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/148GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/165/148/table1 (Cataclysmic variables catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/148/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/148/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/148/table1?GETtext/xml+votable180.050000true82.996313330.44582590.0055555555555555566/85 305 414 434 470 511 569 602 752 779 781 901 928 1137 1179 1202 1204 1206 1243 1253 1282 1378 1387 1397 1413 1415 1445 1470 1568 1596 1633 1685 1690 1694 1750 1772 1781 1822 1840 2073 2079 2134 2153-2154 2163 2188 2204 2244 2263 2280 2294 2297 2309 2335 2360 2401 2405 2435 2440 2461 2607 2659 2674 2686 2691 2715 2717 2723 2731 2754 2855 2906 2935 2941-2942 3029 3097 3198 3247 3292 3410 3421 3456 4123 4173 4195-4196 4273 4279 4296 4336 4341 4348 4356 4367 4377 4453 4479 4515 4603 4607 4723 4726 4740 4757 4790 4924 4964 4988 4999 5107 5115 5129 5191 5210 5345 5409 5485 5591 5650 5809 5864 5883 5918 5971 6052 6172 6179 6237 6258 6274 6315 6324 6376 6491 6567 6598 6608 6621 6643 6657 6668 6672 6694 6721 6729 6750 6829 6860 6883 6921 7036 7046 7211 7233 7248 7306 7873 8265 8281 8474 8545 8552 8596 8804 8877 8977 9165 9267 9311 9333 9419 9441 9481 9484 9503 9527 9578 9669 9672 9723 9738 9829 10434 10799 11018 11072 11084 11112 11122 11333 11456 12556 12792 13217 13245 13279 13421 13682 13691 13789 13806 13896 14018 14026 14201 14441 14936 14964 15041 15090 15110 15122 15133 15150 15368 17566 17790 17818 17886 18095 18169 18207 18229 18431 18784 18844 18862 19009 19039 19169 19173 19178 19180 19259 19266 19316 19538 19592 19950 20025 20066 20106 20128 20168 20296 20318 20351 20436 21822 21994 22062 22166 22240 22280 22294 22363 22464 22485 22745 22838 23275 23641 23644 23653 23702 23719 23767 23772-23773 23795 23802 23841 23843 23862 23880 23908 23924 23946 23994 24016 24025 24028 24046 24061 24106 24113 24139 24164 24217 24275 24283 24297 24356 24376 24390 24412 24450 24460 24466 24470 24481 24483-24484 24487 24490 24556 25577 26157 26328 26588 27004 27204 27309 27343 27480 27482 27524 27612 27690 27982 28082 28127 28221 28501 30075 30196 30431 31684 31808 31817 31836 31997 32100 32131 325521.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/148?format=asciiOpticaldefaultJ/AJ/165/148/table1Cataclysmic variables catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[312121/911405175] LAMOST DR9 Observation IDmeta.id;obslongLAMOSTLAMOST DR9 position-based designationmeta.id;meta.maincharRAJ2000[0.59/359] Right Ascension, LAMOST DR9 (J2000)degpos.eq.ra;meta.mainDEJ2000[-8.51/67.9] Declination, LAMOST DR9 (J2000)degpos.eq.dec;meta.mainSNRg[0/547] Signal-to-noise, g-band extracted from LAMOST Stellar Parameter Pipelinestat.snrintBP-RP[-0.335058/2.699402]? Gaia DR2 BP-RP colormagphot.color;em.opt.B;em.opt.RdoublenullableGmag[11.5/21.1] Gaia DR2 mean G-band magnitudemagphot.mag;em.opt.VfloatGMAG[0.25/12.5]? Absolute Gaia G-band magnitude Section 4.2magphys.magAbs;em.opt.Vfloatnullablee_GMAG[0.009/5]? Uncertainty in MGMAGmagstat.errordoublenullableDist[79/4798]? Distancepcpos.distanceintnullableTypeSubTypesrc.classcharPer[0.01/6.43]? Orbital perioddtime.perioddoublenullableSimbadSimbad column added by the CDSmeta.ref.urlchar