J/MNRAS/454/2787ivo://CDS.VizieR/J/MNRAS/454/2787doi:10.26093/cds/vizier.74542787CDSGuo J.Zhao J.Tziamtzis A.Liu J.Li L.Zhang Y.Hou Y.Wang Y.2024-08-15T20:16:01Z2016-09-23T13:00:01ZCDS support team

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

cds-question@unistra.frsurveyswhite-dwarf-starsHere we present a catalogue of 1056 spectroscopically identified hydrogen-dominated white dwarfs (DAWDs), 34 helium-dominated white dwarfs (DBWDs) and 276 white dwarf main sequence (WDMS) binaries from the Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey data release 2 (DR2). 383 DAWDs, 4 DBWDs and 138 WDMSs are new identifications after cross-match with literature. There are ~4100k spectra in total from DR 2. The low ratio of white dwarfs found in LAMOST is attributed to biased selection of LAMOST input catalogue and much brighter targets relative to stars observed in Sloan Digital Sky Survey. In this paper, a new DAWD selection method is adopted as a new attempt and supplement to the traditional methods. The effective temperature, surface gravity, mass, cooling age and distance of high signal-to-noise DAWDs are estimated. The peak of the mass distribution is found to be ~0.6M_{sun}_, which is consistent with previous work. The parameters of WDMS binaries are also provided in this paper. As the foundation of our future work, which is to identify more WDs with debris disc, WDs found in LAMOST showed a lot of potential. Interesting infrared-excess WDs will be reported in our forthcoming paper.2015MNRAS.454.2787Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/454/2787CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/146 : LAMOST DR1 catalogs (Luo+, 2015)J/AJ/146/34 : LAMOST DA white dwarfs infrared photometry (Zhang+, 2013)J/A+A/570/A107 : WDMS from LAMOST DR1 (Ren+, 2014)J/MNRAS/452/765 : LAMOST DR3 white dwarf candidates (Gentile Fusillo+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/454/2787https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/454/2787http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/454/2787https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/454/2787https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/454/2787http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/454/2787GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/454/2787/table3 (White dwarfs identified in LAMOST DR2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/454/2787/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/454/2787/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/454/2787/table3?GETtext/xml+votable180.050000true358.5335129.273110.005555555555555556Cone search capability for table J/MNRAS/454/2787/table6 (Information of white dwarfs identified in LAMOST DR2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/454/2787/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/454/2787/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/454/2787/table6?GETtext/xml+votable180.050000true332.098588-1.2595080.0055555555555555565/536 1298 6810 6/1 20-21 26 46 65 177 279 326 333 439 459-460 462 469 477 481 484 486 491 494 503 505 508 548 724 762-763 781 819 821 829-830 849-851 862-863 866 875 877 885-886 890 962 964-965 970 992 1002 1014 1041 1045-1046 1051 1071 1082 1084 1095-1096 1098 1102 1152 1161 1172 1178 1186 1188 1199 1201 1208-1209 1212 1226 1231 1248 1260 1280-1281 1284 1294 1298 1306-1307 1317 1328-1329 1332 1337 1352 1369 1377 1429 1432 1445 1453 1458 1539 1552 1554 1557 1601 1615 1619 1625 1637 1648 1650 1663-1664 1693 1717 1731 1733 1735-1736 1745-1746 1748-1749 1751 1786-1787 1847 1866 1875 1888 1939 1944 1972 2077 2079 2094 2099-2100 2103 2108 2110 2116-2117 2126 2151 2153-2154 2156-2157 2159 2170 2182 2197 2199 2206 2243-2244 2246 2249 2251-2252 2266 2279 2286 2355 2364 2406 2426 2452 2564 2568 2571 2573-2574 2585 2592 2596-2597 2599 2608 2614-2615 2617-2618 2621-2622 2627 2636 2656-2657 2660-2661 2671 2673 2675-2676 2709 2717 2768 2789 2816 2824 2830 2972 2993-2995 2999 3018 3098 3218 3225 3601 4126 4162 4173-4175 4178 4180 4183 4185 4189 4193 4197 4200 4212-4213 4215 4307 4312 4324 4330 4342 4345 4360 4370 4390 4392 4395-4396 4398 4413 4440 4443 4450 4457-4458 4476 4478 4482 4487 4491 4493-4494 4496 4527 4530 4533-4534 4540 4558 4560 4563 4575 4578-4579 4591 4593 4595 4598-4599 4602-4603 4606 4614 4645 4649 4655 4674-4675 4678 4680 4688 4714 4736-4737 4752 4756 4761 4764-4765 4780 4788 4797 4801 4814 4832 4841 4848 4857 4859 4865 4875 4877 4890 4898 4901 4903 4908-4910 4913 4915 4917 4920 4922-4923 4931 4934-4935 4938 4941 4943-4944 4946 4949 4951 4955-4956 4959 4962-4964 4966-4967 4971-4972 4976-4977 4980 4985 4989 4997 4999 5002-5003 5008 5010-5011 5013-5014 5018 5025-5029 5032 5037 5040 5042 5044 5047-5048 5053-5054 5057 5064 5067 5083 5090 5096 5142 5145 5148 5150-5151 5158-5159 5163 5166 5172 5174 5178 5187 5190-5191 5196-5197 5208 5216 5219 5222 5228 5231 5234-5236 5238 5240 5243 5245-5246 5249-5250 5252 5255 5260 5262 5266-5269 5272 5275-5276 5278 5280 5283 5290-5291 5307 5312 5315-5316 5318 5343 5361 5367 5369 5373 5408 5534 5537-5538 5553 5560 5573 5579 5592 5605 5616 5619 5632-5634 5636-5638 5641 5643 5646-5647 5649-5650 5666 5674 5680 5701 5708 5713 5719 5725 5742 5746 5749 5751 5757 5760 5771 5798 5826-5828 5898 5902-5903 5910 5916 5920 5922 5936 5940-5941 5943-5944 5953 5963 5966 5989-5990 5996 6000 6002-6003 6008-6009 6013-6015 6040 6066 6102 6151-6152 6159 6163 6170 6172-6173 6192 6194-6198 6201 6208 6214 6219 6223 6225 6228 6237-6238 6244-6245 6247 6250 6257 6260-6261 6268 6275-6276 6279 6281-6282 6294-6296 6298 6305 6319-6320 6324 6327 6333 6369 6371 6379 6381 6396 6404 6408 6412 6421 6425-6426 6432-6433 6455 6467 6471 6473 6479 6500 6503 6510 6630 6643 6664 6679 6689 6696 6699 6714 6723 6759 6766 6786 7001 7045 7152 7257 7306 7330 8199 8336 8428 8522 8565 8696 8747 8750 8760 8836 8838 8845 8850 8878 8886 8907-8908 8965-8966 8987 9009 9015 9017 9019 9021-9022 9029 9035 9042-9043 9056 9065-9066 9099 9102 9104 9110-9112 9116-9117 9121 9124 9126 9129-9132 9134 9140-9141 9146 9148 9169-9170 9202 9210 9261 9333 9336 9383 9463 9465 9471 9506 9535 9578 9601 9613 9633-9634 9638 9814 9832 9872 9891-9892 9901 9914 9929 10095 10123 10242 10248 10256 10262 10266 10289-10290 10299 10312-10313 10348 10373 10378-10379 10386 10401 10406 10408 10422 10465 10496 10499 10501 10504-10505 10509 10514 10519 10525 10562 10568 10579 10618 10647 10675 10696 10703 10706 10715 10727 10742 10788 10854-10855 10858 10862-10863 10889 10891 10895 10907 10913 10945 10961 10963 10966 10968-10969 10972 10982 10984 10987 11022 11025-11027 11034 11037 11039 11072 11080-11081 11084 11092 11104 11109 11116 11120 11132 11136 11148 11178 11182 11192 11195 11203 11207 11212 11232 11336-11337 11362 11377 11406 11421 11427 11432 11449 11808 11813 12373 12787 13139 13142 13721 13749 13976 14016 14575 14585 14587 14589 14731 14734 14746 14751 14758 14761 14764 14768-14769 14772-14773 14775 14780-14781 14795 14821 14824-14825 14920 14925 14928-14929 14936 14941 14944 14946 14973 15112 15117 15138 15141 17645 17647 17745 17750 17753 17756-17757 17778 17790 17840 17842 17852 17863 17879 17904 17913-17914 18000 18006 18119 18130 18174 18256 18293 18314 18338 18798 18865 18867 18870 18875 18902 18916 18926 18957 19021 19034 19038 19065 19093 19100 19141 19201 19207 19254 19260 19262 19266 19270-19272 19298 19368 19439 19481 19487 19525 19819 19834 19927 19939 19949 19960 19962 20078 20174 20212 20273 20279 20287 20311 20319 20351 20369 20372 20404 20423 21456 21715 21794 21810-21811 21870 21879 21893 21952 21954 21957 21959 21963 21965 21967 21976 22001 22171 22173 22199 22204-22205 22218 22235 22240 22243 22245 22248-22249 22254 22256 22292 22295 22352 22378-22379 22435 22440 22447 22459 22472 22476 22480-22481 23090 23101 23118 23209 23225 23228 23231 23267-23268 23275 23292 23468 23679 23702 23762 23769 23771 23773 23789 23796 23801 23826 23838 23880 23903 23909-23910 23915 23923-23924 23926 23929-23930 23932 23963 23981 24029 24045 24048 24050-24051 24054 24056-24057 24062 24144-24145 24151 24176 24188 24225 24234 24237 24253 24291 24295 24299 24311 24314 24329 24331 24341 24346 24351-24352 24357-24358 24364-24366 24373-24375 24383-24384 24386 24388-24390 24395 24411 24414 24416 24436 24441 24445 24451 24458 24465 24468-24469 24473 24476-24477 24482 24489-24491 24499 24503 24512-24513 24517-24518 24523 24525 24530-24531 24533 24535-24537 24547 24564 24573 25567 25599 25933 25938 25943 25947 25952 25967 25969 26010 26013 26017 26020 26028 26039 26042 26121 26165 26170 26187-26189 26198 26201 26203 26209 26221 26224 26243 26272-26273 26275 26279-26280 26283 26295 26305 26328 26338 26382 26402 26405 26418 26420 26441 26461 26466 26567 26573-26574 26578 26584 26608-26609 26621 26623 26911 26961 26969 26976 26991 27056 27058 27067 27078 27085 27091 27106 27121 27125 27131 27198 27205 27209 27213 27216-27218 27221 27226 27233-27236 27239 27244 27247 27250 27285 27290 27324 27329 27332-27333 27335 27341 27347 27352 27354 27441 27490-27491 27493 27504 27524 27536 27540 27554 27594 27636-27637 27645 27648 27652 27693 27700 27742 27756 27784 27839 27883 27929 27934-27936 27939 27944 27948-27949 27985 27991 28001 28021 28086 28091 28110 28127 28142 28148 28151 28161 28183 28185 28188 28195 28198 28213 28219 28301 28326 28329 28331 28370 28379 28390 28408 28410-28411 28413 28452 28455 28464-28465 28472 28475 28480 28482 28484-28485 28488 28492 28495 28506-28507 28517 28523 28525-28527 28531 28538-28539 28550 28559 28562 28568 28579 28594 28609 28621 28624 31316 31369 31375 31397-31398 31424 31432 31438 31458 31532 31550 31612 31701 31735 31741 31907 31925 32486 32500 32502 32506 32553-32554 32674 36846 36859 45048 45054https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/454/2787?format=asciidefaultJ/MNRAS/454/2787/table3White dwarfs identified in LAMOST DR2Mass? Estimated masssolMassphys.massfloatnullableDEJ2000Declination (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGIDGroup ID (i.e. 1_2 means group 1 has 2 spectra observations)meta.idcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainLAMOSTDesignation: assigned name for a source by LAMOST (JHHMMSS.ss+DDMMSS.s) (1)meta.id;meta.maincharspecIdMjd-Planid_spid-Fiberid (G1)meta.idcharsnrgSignal to Noise ratio in g bandstat.snrfloatTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? rms uncertainty on TeffKstat.error;phys.temperature.effectiveintnullablelogg? Surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullablee_Mass? rms uncertainty on MasssolMassstat.error;phys.massfloatnullableAge? White dwarf cooling ageMyrtime.ageintnullablee_Age? rms uncertainty on AgeMyrstat.error;time.ageintnullableE(B-V)? Extinctionmagphot.color.excessfloatnullableDist? Estimated distancepcpos.distance;pos.heliocentricintnullableTypeClassification of spectral type (2)src.spTypecharNewnew means new identification, not_new means already identifiedmeta.codecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/454/2787/table4WDMS catalogue from LAMOST DR2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspecIdMjd-Planid_spid-Fiberid (G1)meta.idcharTeffWD? Effective temperature of WDKphys.temperature.effectiveintnullableloggWD? Surface gravity of WDlog(cm.s**-2)phys.gravityfloatnullableMassWD? Mass of WDsolMassphys.massfloatnullablelogAge? log of cooling agelog(yr)time.agefloatnullableRadWD? Radius of WDsolRadphys.size.radiusfloatnullableDistWD? Distance of WDpcpos.distance;pos.heliocentricdoublenullableTeffM? Effective temperature of M starKphys.temperature.effectiveintnullableloggM? Surface gravity of M starlog(cm.s**-2)phot.flux.density.sb;em.IR.4-8umfloatnullableMassM? Mass of M starsolMassphys.massfloatnullableRadM? Radius of M starsolRadphys.size.radiusfloatnullable[Fe/H]? [Fe/H] of M starphys.abund.FefloatnullableSpTypeM? Spectral type of M star. (-1 means K type star secondary)src.spTypefloatnullablea? Scaling factor astat.fit.paramdoublenullableb? Scaling factor bstat.fit.paramdoublenullableChi2? chi-square of best-fitstat.fit.chi2;meta.modelledfloatnullableJ/MNRAS/454/2787/table4b*WDMS candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspecIdMjd-Planid_spid-Fiberid (G1)meta.idcharNotesNotesmeta.notecharJ/MNRAS/454/2787/table6Information of white dwarfs identified in LAMOST DR2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainspecIdMjd-Planid_spid-Fiberid (G1)meta.idcharLAMOSTAssigned name for a source by LAMOST. Could be slight different for the same sourcemeta.id;meta.maincharObs.DateSpectra observed datetime.epochnullableMJDmodified Julian Daydtime.epochintPlanIdPlate identifiermeta.id;instr.platecharspIdSpectrograph identifiermeta.id;instrintFiberIdFiber identifiermeta.idintsnru? Signal to noise ratio in u bandstat.snrfloatnullablesnrgSignal to noise ratio in g bandstat.snrfloatsnrrSignal to noise ratio in r bandstat.snrfloatsnri? Signal to noise ratio in i bandstat.snrfloatnullablesnrz? Signal to noise ratio in z bandstat.snrfloatnullableClassClass assigned by LAMOST pipeline (STAR, GALAXY, QSO or UNKNOWN)src.classcharSubClassSpectral class assigned by LAMOST pipelinesrc.classcharmagTypeMagnitude band of objectinstr.bandpasscharmag1? Magnitude in band 1 of magType (1)magphot.magfloatnullablemag2? Magnitude in band 2 of magType (1)magphot.magfloatnullablemag3? Magnitude in band 3 of magType (1)magphot.magfloatnullablemag4? Magnitude in band 4 of magType (1)magphot.magfloatnullablemag5? Magnitude in band 5 of magType (1)magphot.magfloatnullablemag6? Magnitude in band 6 of magType (1)magphot.magfloatnullablemag7? Magnitude in band 7 of magType (1)magphot.magfloatnullable