J/MNRAS/509/2674ivo://CDS.VizieR/J/MNRAS/509/2674doi:10.26093/cds/vizier.75092674CDSGuo J.Zhao J.Zhang H.Zhang J.Bai Y.Walters N.Yang Y.Liu J.2025-02-12T20:11:58Z2024-10-11T13:49:02ZCDS support team

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

cds-question@unistra.frmilky-way-galaxywhite-dwarf-starsmorgan-keenan-classificationphotometryclassificationspectroscopyultraviolet-astronomyradio-sourcesinfrared-astronomyvisible-astronomyastrometryeffective-temperaturestellar-massestrigonometric-parallaxproper-motionsstellar-agesIn this paper, we report white dwarfs (WD) identified in the 5th Data Release of the Large Area Multi-Object fibre Spectroscopic Telescope (LAMOST), including spectral types of DA, DB, DC, DZ, and so on. There are 2625 DA spectra of 2281 DA stars, 182 DB spectra of 166 DB stars, 62 DC spectra of 58 DC stars, 36 DZ spectra of 33 DZ stars, and many other types identified, in addition to our previous paper (Data Release 2). Amongst those sources, 393 DA stars and 46 DB stars are new identifications after cross-matching with the literature. In order to select DA candidates, we use the classification result from the LAMOST pipeline, colour-colour cut method and a random forest (RF) machine learning method. For DBs, since there is no template for DB in the pipeline model, a RF machine learning method is chosen to select candidates. All the WD candidates have been visually checked individually. The parameters of effective temperature, surface gravity, mass, and cooling age have been estimated for relatively high signal-to-noise ratio DAs and DBs. The peaks of the DA and DB mass distributions are found to be around 0.62 and 0.65 M_{sun}_, respectively. Finally, the data and method we used to select WD candidates for the second phase of LAMOST survey are also addressed in this paper.2022MNRAS.509.2674Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/509/2674CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/149 : LAMOST DR2 catalogs (Luo+, 2016)V/153 : LAMOST DR4 catalogs (Luo+, 2018)V/164 : LAMOST DR5 catalogs (Luo+, 2019)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/MNRAS/482/715 : WD luminosity functions from the PS1 3pi Survey (Lam+, 2019)J/MNRAS/486/2169 : White dwarf and subdwarf stars in SDSS DR14 (Kepler+, 2019)J/MNRAS/455/3413 : New white dwarf and subdwarf stars in SDSS DR12J/AJ/146/34 : Infrared photometry of DA white dwarfs from LAMOSTJ/MNRAS/454/2787 : LAMOST DR2 white dwarfs (Guo+, 2015)J/MNRAS/452/765 : White dwarf candidates using LAMOST DR3J/MNRAS/477/4641 : LAMOST DR5 White dwarf-main sequence binaries (Ren+, 2018)J/MNRAS/480/3942 : The Gaia 20 pc white dwarf sample (Hollands+, 2018)J/MNRAS/497/130 : Gaia white dwarfs within 40pc. I (Tremblay+, 2020)J/MNRAS/480/4505 : A white dwarf catalogue from Gaia-DR2J/MNRAS/482/4570 : Gaia DR2 white dwarf candidates (Gentile Fusillo+, 2019)J/MNRAS/485/5573 : Gaia-DR2 100pc white dwarf population (Torres+, 2019)http://dr5.lamost.org/ : LAMOST DR5 spectra home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/509/2674https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/509/2674http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/509/2674https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/509/2674https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/509/2674http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/509/2674GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/509/2674/table3 (Basic parameters of WDs from LAMOST DR 3, 4, 5)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2674/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2674/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2674/table3?GETtext/xml+votable180.050000true6.63850339.1508170.005555555555555556Cone search capability for table J/MNRAS/509/2674/table4 (Determined WD parameters and Gaia DR2 parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2674/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2674/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2674/table4?GETtext/xml+votable180.050000true6.63850339.1508170.005555555555555556Cone search capability for table J/MNRAS/509/2674/table5 (Updated types for White dwarfs identified in LAMOST DR1&2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2674/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2674/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2674/table5?GETtext/xml+votable180.050000true121.66912820.4207720.005555555555555556Cone search capability for table J/MNRAS/509/2674/table6 (Updated parameters for DA White dwarfs identified in LAMOST DR1&2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2674/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2674/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2674/table6?GETtext/xml+votable180.050000true332.098588-1.2595080.0055555555555555565/1227 1230 1241 1260 1262 1266 1276 1287 1298 1318-1319 1345 1355 1413 1418 1485 1606 1616 1625 1651 1812 2167 2317 2325 2343 2472 2630 2633 2696 4757 4760 5087 6804 6810 6/1-2 7 17-18 21 46 51 64-65 85 99 128 131 134 136 160 168 177 185 189-190 223 233 240 277 279 304-305 319-320 326 333 346 349 361 397 419-420 424 435-436 439 448 462 473 475 477 480-481 491 494 505 508 518 593 605 627 636 677 687 696 709-710 717 726 752 772 776 781-782 819 821 829-830 851 862-863 877 890 894-895 902 921 958 962 964-965 970 992 1014 1033 1045-1046 1051 1070 1082 1084 1095 1098 1110 1167 1172 1188 1208 1212 1226 1231 1239 1245 1248 1253 1260 1271 1300 1306-1307 1327 1337 1362 1378-1379 1387-1388 1402 1427 1434 1448-1449 1552 1579 1581 1593-1594 1606 1610-1611 1617 1664 1666 1681 1685 1689 1698 1717 1731 1735-1736 1740 1746 1749 1768 1787 1824 1833 1986 2061 2065-2066 2069 2073-2074 2077 2079 2081-2082 2099 2102-2103 2108 2110 2113 2116 2126 2134 2144-2146 2149-2151 2154 2156-2157 2159 2163 2166-2168 2170 2173-2175 2182 2197 2199 2203 2206 2227-2230 2235 2237 2243-2244 2246 2248 2251 2268 2271 2279-2281 2290 2294 2297 2303 2314 2348 2358 2360 2364 2426 2433 2435 2439-2440 2445-2446 2466 2476 2489-2490 2493 2495 2568 2571 2573-2574 2579 2585 2592 2597 2599 2601-2602 2604 2607-2609 2614-2615 2618-2622 2627 2629 2633 2636 2641 2644 2648 2656 2658 2660 2673 2675 2677 2679 2690 2692-2693 2695 2707 2709 2714 2717-2719 2726 2749 2760-2761 2775 2777 2789 2816 2820 2824 2828 2840 2844 2849 2851 2853 2860 2912 2933 3018 3215 3252 3258 4103 4112 4116-4117 4120-4121 4123 4125-4126 4162 4173-4174 4178 4180 4193 4197 4199 4213 4215 4244 4296 4312 4319 4324 4342 4344-4345 4356-4357 4360 4362 4369-4370 4374-4377 4387 4390 4392 4395 4398 4441 4443-4445 4450 4457-4458 4465-4466 4471-4472 4476 4478-4479 4482 4493 4496 4519 4525 4527 4529-4531 4533 4536 4540 4543 4555 4557 4560 4563 4565 4568 4570-4571 4573-4575 4579 4582 4591-4593 4598-4599 4602-4603 4605-4607 4614 4621 4623 4625 4628 4640 4642 4644-4645 4648-4650 4654-4655 4664-4665 4674-4675 4678 4680 4688 4692 4694 4712 4714 4727 4731 4734 4740 4743 4747 4750 4752 4756-4757 4760-4761 4764-4765 4770 4772 4780 4788-4789 4793-4794 4801 4812 4814 4821 4828 4832-4833 4841 4857 4875 4877 4887 4890 4893-4894 4898 4900-4901 4903 4905 4913 4915 4917 4919 4925 4929-4930 4932 4934-4935 4937 4941 4943 4945-4947 4949 4951 4955-4957 4959 4962-4963 4968 4971-4972 4976-4977 4980 4983 4988-4989 4994 4998-4999 5001-5003 5007-5008 5010-5011 5013-5014 5016 5018 5022 5025-5029 5032 5037-5039 5044 5046-5047 5053-5054 5057 5060 5068-5069 5075 5083-5085 5088 5090-5091 5094-5096 5100 5102 5108 5110-5112 5114 5120 5127 5129-5130 5132-5133 5140 5142 5144-5145 5154 5157-5160 5163 5166 5168 5172 5178-5179 5181 5185 5187 5189-5191 5197 5199 5202 5205 5207-5208 5210-5211 5213 5222-5223 5225 5227-5228 5230-5231 5234-5236 5238 5240 5243-5246 5250 5253-5255 5260-5262 5267-5268 5280 5283 5286 5290-5291 5294 5296 5299 5301-5303 5307 5309 5312-5313 5315-5316 5318 5323 5325 5341-5343 5345 5349-5350 5353 5358-5359 5361 5367 5372 5384-5385 5387-5388 5393 5396-5397 5399 5405 5407 5409-5411 5416 5418 5427-5429 5432-5434 5438 5442-5444 5446 5448-5449 5457 5466 5472 5478 5485 5490 5504 5512 5518-5519 5522 5524 5530-5531 5534 5536-5537 5539 5542 5545 5550 5553 5560 5566-5567 5573 5581 5592 5604 5632-5634 5636-5638 5641 5643 5645 5647-5650 5656-5657 5659-5660 5665-5668 5671 5679-5680 5685 5688 5691-5692 5695 5697-5698 5700-5702 5705 5708 5713 5719 5723 5725 5742-5743 5746 5749 5751 5757 5760-5761 5766 5770-5772 5776 5778 5780 5784 5791-5793 5797-5798 5801 5804 5814 5816 5818-5821 5825-5829 5831 5836 5842 5852 5860 5863-5864 5868 5871-5873 5880 5883 5892-5893 5898 5903 5907 5910-5911 5916 5920 5922 5934 5936 5946 5948-5949 5953 5960 5963 5976 5979 5985-5987 5989-5991 5996 6000 6002-6003 6008-6009 6011 6013-6015 6024 6027 6037 6040 6047-6048 6050-6052 6056 6066 6069 6072 6074 6082 6086 6090 6096 6099 6102 6104 6120 6151 6159 6163 6170 6173 6183 6192 6194-6197 6201 6208 6214 6219 6223 6225 6228 6237-6238 6244-6245 6250 6255 6257-6258 6261 6267-6268 6272-6273 6275-6276 6281 6283 6295-6296 6298 6305 6319 6324 6334 6346 6351 6356 6379 6381 6384 6396 6399 6401 6403-6404 6407 6412-6413 6419-6421 6423 6428 6431-6433 6448-6449 6451-6453 6455 6458 6463 6468 6473 6477 6479-6480 6482-6484 6486-6489 6492 6495 6498-6499 6508-6510 6513 6515-6517 6522 6526 6544-6545 6547 6550-6551 6556-6557 6559 6563 6567-6568 6570 6587-6589 6593-6596 6598 6600 6608-6610 6613-6618 6620 6623-6624 6630 6633 6668 6686 6689 6695 6699-6700 6703 6705 6708 6714 6719 6726 6732 6737-6738 6741 6750 6752-6753 6756 6759 6763-6764 6771-6772 6786 6808-6809 6834 6848 6852 6859 6883 6889 6915 6919 6921 6927 6932 6961 6978 6988 7010 7046 7072 7175 7180 7183 7186 7189 7191-7192 7203 7208-7209 7211 7216 7219 7230 7232 7236 7239 7245-7246 7252-7253 7257 7259 7262-7264 7268-7269 7272 7280-7281 7283-7284 7286 7292 7299 7312-7313 7315 7318 7321 7323-7324 7326 7331 7340 7342 7344 7347 7352 7428 7456 7458 7684-7685 7715 8192-8193 8196-8197 8199 8201-8202 8204 8206-8207 8218 8225 8228-8230 8232 8236-8237 8244 8246 8248-8249 8251 8265 8273 8276 8278 8281 8286 8311 8336 8350 8361 8375 8379 8398 8408 8418-8419 8421 8425 8441 8443 8449 8451 8458 8474-8475 8479-8480 8499 8501 8503 8510 8515 8519 8522 8524-8526 8544 8549 8552 8555 8590 8595-8596 8609 8614-8615 8653 8659 8666 8674 8676 8679 8683-8684 8687 8691 8695-8696 8701 8725 8727 8729 8731 8745 8747 8750 8754 8758 8760 8762-8763 8770 8775 8780 8784 8788 8791 8802 8804 8809-8810 8816 8829 8835-8836 8838 8842-8843 8845-8846 8850 8855 8857 8861 8865-8866 8869-8871 8882-8883 8886 8897-8898 8907-8908 8947 8951-8952 8962 8965-8966 8974 8977 8981 8987 8993 8996 9001 9015 9017 9019 9021-9022 9029 9035 9042-9043 9047 9049 9065-9068 9071 9073 9075 9077-9079 9081-9082 9087 9099-9100 9102-9104 9106 9111 9114 9116-9117 9121 9124 9126 9129 9131-9132 9134 9136-9137 9139-9141 9143 9146 9148 9169-9170 9173 9176 9179 9192 9202 9204-9205 9207-9208 9210-9212 9214-9215 9239 9243 9261 9265-9266 9273 9275 9277-9279 9281-9284 9286-9287 9289-9290 9292 9296 9298-9299 9305 9308 9310-9312 9317-9318 9321 9327 9331 9333-9336 9341-9342 9344 9349-9350 9352-9354 9357-9360 9363-9364 9367 9369 9376 9378 9383-9384 9386-9387 9389 9391-9393 9397 9401 9410-9411 9413 9416-9417 9419-9420 9441-9442 9463 9471 9473 9475 9477 9481 9483-9484 9486 9492 9503-9504 9506 9509-9510 9535 9544 9578 9580 9596 9601 9613-9614 9616 9634 9638 9669 9679 9708 9712 9715 9723 9730 9745 9751 9768 9770 9779 9819 9832 9837 9840 9842 9847 9851 9853 9858 9892 9901 9905 9907 9914 9929 9937 10015 10118 10126 10144 10153 10242 10244 10248 10252 10256 10258 10260-10262 10264 10266 10271 10289-10290 10297 10299 10301 10310-10314 10319 10327 10333 10343 10348 10351 10359 10362-10365 10379 10395 10406 10408 10410 10412-10413 10415 10422 10425 10438 10443 10445 10451 10453 10456 10458-10460 10462-10463 10465-10466 10470-10471 10481-10482 10484 10496 10498-10501 10504-10506 10509-10511 10514 10518-10519 10524-10526 10528 10530 10536 10539-10541 10543-10544 10546 10553 10560 10562 10568-10569 10579 10591 10628 10633-10634 10636-10638 10645 10647 10658 10661 10666 10668 10675 10703 10727 10752 10756 10758-10761 10765 10770-10771 10776 10778-10780 10782 10788 10790 10793-10796 10799 10802 10809 10811 10817-10819 10823-10824 10826 10831 10835 10840 10845-10846 10853-10855 10858 10862-10863 10869 10874 10880-10881 10883 10886 10889 10891 10895-10896 10900 10905 10907 10945-10946 10948-10949 10951 10953 10961 10963 10966 10968-10969 10972 10982 10987 10992 10999 11007 11025-11027 11029-11031 11039 11056 11062 11067 11072 11074 11079-11081 11084 11086 11104 11107 11109 11114 11118 11120 11130 11132 11148 11157 11178-11179 11182 11192 11195 11203 11207 11212 11232 11270 11275-11276 11297-11298 11300-11301 11346 11362 11405 11415-11416 11421 11427 11429 11431-11432 11442 11465 11470 11488-11490 11492 11529 11808 12373 12529 12545 12556 12573 12609 12626 12747 12750 12792 13133 13139 13142 13295 13390 13393 13421-13422 13682 13689 13691 13776-13777 13779 13785 13839 14018 14176 14263 14423 14441 14452 14467 14592 14602 14667 14761 14764 14769 14772-14773 14780 14824 14920 14941 14948 14964 14973 15041 15110 15138 15141 15156 15169 17645 17647 17655 17661 17663 17745 17748 17753 17756 17766-17768 17771-17772 17778 17790 17811-17812 17815 17818 17840 17844 17847-17848 17852 17856 17858 17879 17883 17886 17892 17898 17904 17907 17913-17914 17916 18006 18011 18013-18014 18023 18030 18032 18035 18038-18039 18087 18093-18094 18096 18098 18118-18120 18126 18130 18133 18182 18189 18198 18224-18225 18228-18230 18234 18246 18255-18256 18261 18267 18272 18290 18293 18306 18311 18313-18314 18317 18321 18325 18336 18338 18341 18383 18395 18398 18430 18652 18663 18668 18775 18778-18779 18788 18790-18791 18796-18798 18835-18836 18839 18841-18842 18844-18845 18847 18859 18865 18875 18880 18882 18926 18999 19005 19021 19023 19025 19027 19033 19035 19038 19045 19051-19052 19065 19085-19086 19098 19100-19102 19109 19126 19130 19135-19136 19141 19161 19165-19166 19171 19173 19176 19178-19180 19185 19187 19189 19192-19194 19221 19232 19239 19243 19246 19254 19259 19266 19270-19271 19277 19298 19316 19321 19324 19328 19330-19331 19340 19350 19360 19365 19372 19375 19380 19401 19406 19408 19413-19417 19420 19428 19430 19456 19463 19466 19481 19488 19491 19493 19512 19525 19554 19564 19591 19596-19597 19603 19620 19625 19629 19675 19697 19782 19819 19874 19881 19927 19969 19974 19980-19982 19994 19996 19998 20004 20007 20010 20016 20019 20025 20028 20030 20036 20044 20049 20053 20061 20066 20078 20082 20089 20096 20127 20162-20163 20168-20170 20172 20174 20193 20214 20293-20294 20304 20318 20360 20404 20423 20435 20439 20453 20471-20472 21481 21846 21870 21879 21885 21954 21957 21959 21967 21980 22002 22085 22238 22250 22263 22271 22387 22411 22414 22429-22430 22434 22448 22452 22464 22473 22483 22485-22487 22492 22494 22497 22500 22510 22513-22514 22516 22520-22521 22727 22745 22778 22823 22846 22854 22867-22868 22870 22876 22900 22909 22928 22983 23006-23007 23101 23103 23110 23120-23122 23145 23181-23184 23187 23190 23193-23197 23205 23207-23208 23210 23213-23214 23217 23220 23223 23225 23228-23229 23231 23233-23234 23260 23263 23267-23268 23272 23275 23287 23293 23295 23339 23345 23389 23445 23464 23468 23476 23490 23497 23499 23504 23507 23516 23536-23537 23544-23545 23549 23553 23556 23561 23580 23590 23600 23625 23627 23643 23667 23670 23703 23712 23717 23719 23733 23740 23747 23754 23758 23767 23771 23773-23774 23778 23782 23789 23804 23810 23812 23817 23819-23820 23826-23827 23829 23833 23847 23863 23875-23876 23883 23888 23903 23909 23915 23924 23930 23934 23938 23940-23941 23945-23946 23969 23973 23976 23981-23982 24010 24016-24017 24025 24045-24046 24054 24059 24082 24102 24113 24130 24145 24151 24162-24163 24167 24175-24176 24188 24199 24207 24217 24225 24234 24237 24253 24270 24291 24295 24299 24314 24324 24329 24335 24339 24341-24342 24345-24346 24357 24365-24366 24388-24390 24395 24414 24416 24428 24436 24441 24451 24458 24473 24482-24483 24487 24489 24491 24517-24518 24523 24525 24530 24535 24537 24547 25531 25535 25592 25599 25843-25844 25847-25848 25851 25855 25924 25938 25943-25944 25946 25967 25969 25972 25981 25988 26001 26013 26017 26020 26042 26053 26065-26068 26070 26094 26108 26121 26157 26161 26165-26167 26170 26172 26174 26187-26189 26198 26221-26222 26224 26227 26235 26237-26238 26243 26260 26267 26275 26279-26280 26295 26302 26305 26311 26326 26328 26332 26338 26352 26366 26368 26405 26410-26411 26418 26420 26427 26441 26443 26447 26454 26456 26461 26464 26467-26468 26474 26477 26481-26482 26496-26497 26500-26501 26505 26515-26516 26519 26521 26527 26535 26538 26540 26542 26550-26551 26556 26565 26567 26572-26573 26578 26581 26583-26584 26589 26595 26600 26602 26605 26608-26609 26612 26617-26619 26623 26840 26843 26847 26864 26867-26870 26872 26905 26908 26911 26952-26953 26975-26976 26986 26991 27007 27021-27022 27024 27028 27030 27034 27036-27038 27044 27046 27049 27054 27056-27058 27060 27063 27067-27069 27071 27083 27085 27092 27097 27103 27106 27108 27121 27131 27135 27175 27193-27194 27198 27202 27204-27205 27209 27213 27226 27233 27236 27239 27244-27245 27247 27250-27252 27255 27259-27260 27269 27271 27282 27285 27288-27290 27295 27301 27313 27318 27321-27323 27329 27332-27333 27341 27343 27347 27349-27350 27352 27354 27360 27370 27381 27392-27393 27395-27397 27400 27402 27405 27410 27421 27426 27432 27441 27446-27447 27475 27477-27478 27480 27482-27483 27490 27493 27504 27506-27507 27527 27529 27534 27536-27537 27540 27546 27557 27559 27561 27570 27573-27574 27579-27580 27587 27591 27593-27596 27602 27610-27612 27614 27619 27625 27632 27636-27637 27645 27648 27652-27653 27655-27656 27663 27680-27681 27683 27687 27690-27691 27693 27696 27700 27704 27726 27735-27736 27739 27742 27783-27785 27793 27839 27842 27870 27883 27900 27909-27910 27915-27916 27920 27929 27934-27935 27941 27944 27948-27949 27952 27956 27959-27960 27965-27966 27971 27973 27975-27976 27985 27988 27991 28001-28003 28006 28009 28034-28035 28042-28044 28053 28065 28067 28070 28082 28086 28088 28090-28091 28109-28110 28127 28139 28143 28149 28151 28154-28155 28159 28163 28170 28183 28185 28188 28195 28207 28213 28221 28223 28249 28252 28259 28264 28267 28270 28282 28309-28311 28315-28316 28320 28326-28327 28329 28331 28339-28340 28342-28343 28352 28354 28358 28370 28379 28387 28393 28397 28400 28402-28403 28410-28413 28415 28420 28432 28452 28459 28464 28472 28475 28482-28485 28488 28490 28492 28495-28496 28500-28501 28505-28507 28509 28514 28522-28523 28525 28531-28533 28538 28547 28550 28557-28559 28561-28563 28566 28568-28569 28572-28573 28578-28580 28584 28589 28594-28595 28597-28598 28601-28602 28604 28606-28607 28609 28616-28618 28631 28642 28650-28651 31062-31063 31163 31172 31203 31298 31311 31316 31354 31369 31375 31403-31404 31406-31407 31413 31424 31428 31432 31438 31446 31451 31458 31470 31478 31487 31612 31628 31631 31643 31650 31670 31672 31735 31741 31907 31997 32162 32410 32458 32492 32494 32499-32500 32506-32507 32547 32551 32553-32555 32641 32682 36858 36861 40944 45048 45054https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/509/2674?format=asciiUVOpticalInfraredRadiodefaultJ/MNRAS/509/2674/table3Basic parameters of WDs from LAMOST DR 3, 4, 5recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupIDGroup identifier number (GroupID)meta.id.parentintmag5? Apparent magnitude in the band 5 (mag5)magphot.magfloatnullablemag6? Apparent magnitude in the band 6 (mag6)magphot.magfloatnullablemag7? Apparent magnitude in the band 7 (mag7)magphot.magfloatnullableSpectrumDisplay the LAMOST spectrummeta.ref.urlcharNameObject name designation as JHHMMSS.SS+/-DDMMSS.S (designation) (G1)meta.id;meta.maincharSizeNumber of available spectra (GroupSize)meta.numberintObsIDObservation ID unique for each spectrum (obsid)meta.id;obslongRAJ2000Right ascension (ra_obs) (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (dec_obs) (J2000)degpos.eq.dec;meta.mainDateTarget observation date (obsdate)time.epoch;obsnullableLMJDLocal modified Julian Day (lmjd)dtime.epoch;pos.lg;pos.lsrintPlanIDPlan ID (planid)obs.fieldcharSpIDSpectrograph ID (spid)meta.id;instrintFiberIDFiber ID (fiberid)meta.idintFileNameUnique ID for each LAMOST spectrum fits name (fits)meta.idcharSpTypeClassification of spectral types (type)src.spTypecharS/NuSignal to Noise ratio in u band (snru)stat.snrfloatS/NgSignal to Noise ratio in g band (snrg)stat.snrfloatS/NrSignal to Noise ratio in r band (snrr)stat.snrfloatS/NiSignal to Noise ratio in i band (snri)stat.snrfloatS/NzSignal to Noise ratio in z band (snrz)stat.snrfloatTypeObject type by Pipeline (objtype)src.classcharClassSpectra type by Pipeline (class)src.classcharSubClassStellar sub-class by Pipeline (subclass)src.classcharz? Spectroscopic redshift (z)src.redshiftdoublenullablee_z[]? Mean error on z (z_err)stat.error;src.redshiftdoublenullableMagType1Target Magnitude type 1 available (magtype) (G2)meta.code;instr.filtercharMagType2Target Magnitude type 2 available (magtype) (G2)meta.code;instr.filtercharMagType3Target Magnitude type 3 available (magtype) (G2)meta.code;instr.filtercharMagType4Target Magnitude type 4 available (magtype) (G2)meta.code;instr.filtercharMagType5Target Magnitude type 5 available (magtype) (G2)meta.code;instr.filtercharMagType6Target Magnitude type 6 available (magtype) (G2)meta.code;instr.filtercharMagType7Target Magnitude type 7 available (magtype) (G2)meta.code;instr.filtercharmag1? Apparent magnitude in the band 1 (mag1)magphot.magfloatnullablemag2? Apparent magnitude in the band 2 (mag2)magphot.magfloatnullablemag3? Apparent magnitude in the band 3 (mag3)magphot.magfloatnullablemag4? Apparent magnitude in the band 4 (mag4)magphot.magfloatnullableJ/MNRAS/509/2674/table4Determined WD parameters and Gaia DR2 parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupIDGroup identifier number (GroupID)meta.id.parentintSizeNumber of available spectra (GroupSize)meta.numberintObsIDObservation ID unique for each spectrum (obsid)meta.id;obslongSpectrumDisplay the LAMOST spectrummeta.ref.urlcharS/NgSignal to Noise ratio in g band (snrg)stat.snrfloatTeff? Effective temperature (teff)Kphys.temperature.effectivedoublenullablee_Teff? Mean uncertainty of Teff (e_teff)Kstat.error;phys.temperature.effectivedoublenullablelogg? Surface gravity (logg)log(cm.s**-2)phys.gravityfloatnullablee_logg? Mean uncertainty of logg (e_logg)log(cm.s**-2)stat.errorfloatnullableM*? Estimated mass (mass)solMassphys.massdoublenullablee_M*? Mean uncertainty of M* (e_mass)solMassstat.errordoublenullabletcool? White dwarf cooling age (age)yrtime.agedoublenullablee_tcool? Mean uncertainty of tcool (e_age)yrstat.errordoublenullablePlx? Absolute stellar parallax from Gaia DR2 (parallax)maspos.parallaxfloatnullablee_Plx? Mean uncertainty of Plx from Gaia DR2 (parallax_error)masstat.error;pos.parallaxfloatnullablepmRA? Proper motion in right ascension direction pmRA*cosDE from Gaia DR2 (pmra)mas/yrpos.pm;pos.eq.radoublenullablee_pmRA? Mean uncertainty of pmRA (pmra_error)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in declination direction pmdec from Gaia DR2 (pmdec)mas/yrpos.pm;pos.eq.decdoublenullablee_pmDE? Mean uncertainty of pmDE (pmdec_error)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableGmag? G-band mean magnitude (Vega) (phot_g_mean_mag)magphot.mag;em.optdoublenullableSpTypeClassification of spectral types from this work (type)src.spTypecharRAJ2000Fiber pointing right ascension (ra_obs) (J2000)degpos.eq.ra;meta.mainDEJ2000Fiber pointing declination (dec_obs) (J2000)degpos.eq.dec;meta.mainFileNameUnique ID for each LAMOST spectrum fits name (fits)meta.id;meta.maincharJ/MNRAS/509/2674/table5Updated types for White dwarfs identified in LAMOST DR1&2FiberIDFiber ID (fiberid)meta.idintRAJ2000Fiber pointing right ascension (ra_obs) (J2000)degpos.eq.ra;meta.mainDEJ2000Fiber pointing declination (dec_obs) (J2000)degpos.eq.dec;meta.mainS/NuSignal to Noise ratio in u band (snru)stat.snrfloatS/NgSignal to Noise ratio in g band (snrg)stat.snrfloatS/NrSignal to Noise ratio in r band (snrr)stat.snrfloatS/NiSignal to Noise ratio in i band (snri)stat.snrfloatS/NzSignal to Noise ratio in z band (snrz)stat.snrfloatTypeObject type by Pipeline (objtype)src.classcharMagType6Target Magnitude type 6 available (magtype) (G2)meta.code;instr.filtercharMagType7Target Magnitude type 7 available (magtype) (G2)meta.code;instr.filtercharmag1? Apparent magnitude in the band 1 (mag1)magphot.magfloatnullablemag2? Apparent magnitude in the band 2 (mag2)magphot.magfloatnullablemag3? Apparent magnitude in the band 3 (mag3)magphot.magfloatnullablemag4? Apparent magnitude in the band 4 (mag4)magphot.magfloatnullableClassSpectra type by Pipeline (class)src.classcharSubClassStellar sub-class by Pipeline (subclass)src.classcharz? Spectroscopic redshift (z)src.redshiftdoublenullablee_z? Mean error on z (z_err)stat.error;src.redshiftdoublenullableMagType1Target Magnitude type 1 available (magtype) (G2)meta.code;instr.filtercharMagType2Target Magnitude type 2 available (magtype) (G2)meta.code;instr.filtercharMagType3Target Magnitude type 3 available (magtype) (G2)meta.code;instr.filtercharMagType4Target Magnitude type 4 available (magtype) (G2)meta.code;instr.filtercharMagType5Target Magnitude type 5 available (magtype) (G2)meta.code;instr.filtercharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation ID unique for each spectrum (obsid)meta.id;obslongSpectrumDisplay the LAMOST spectrummeta.ref.urlcharNameObject name designation as JHHMMSS.SS+/-DDMMSS.S (designation) (G1)meta.id;meta.maincharDateTarget observation date (obsdate)time.epoch;obsnullableLMJDLocal modified Julian Day (lmjd)dtime.epoch;pos.lg;pos.lsrintMJDModified Julian date (mjd)dtime.epochintPlanIDPlan ID (planid)obs.fieldcharSpIDSpectrograph ID (spid)meta.id;instrintmag5? Apparent magnitude in the band 5 (mag5)magphot.magfloatnullablemag6? Apparent magnitude in the band 6 (mag6)magphot.magfloatnullablemag7? Apparent magnitude in the band 7 (mag7)magphot.magfloatnullableFileNameUnique ID for each LAMOST spectrum fits name (fits)meta.idcharNTypeNew updated types (type)src.classcharJ/MNRAS/509/2674/table6Updated parameters for DA White dwarfs identified in LAMOST DR1&2mag3? Apparent magnitude in the band 3 (mag3)magphot.magfloatnullablemag4? Apparent magnitude in the band 4 (mag4)magphot.magfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation ID unique for each spectrum (obsid)meta.id;obslongSpectrumDisplay the LAMOST spectrummeta.ref.urlcharNameObject name designation as JHHMMSS.SS+/-DDMMSS.S (designation) (G1)meta.id;meta.maincharDateTarget observation date (obsdate)time.epoch;obsnullableLMJDLocal modified Julian Day (lmjd)dtime.epoch;pos.lg;pos.lsrintMJDModified Julian date (mjd)dtime.epochintPlanIDPlan ID (planid)obs.fieldcharSpIDSpectrograph ID (spid)meta.id;instrintFiberIDFiber ID (fiberid)meta.idintRAJ2000Fiber pointing right ascension (ra_obs) (J2000)degpos.eq.ra;meta.mainDEJ2000Fiber pointing declination (dec_obs) (J2000)degpos.eq.dec;meta.mainS/NuSignal to Noise ratio in u band (snru)stat.snrfloatS/NgSignal to Noise ratio in g band (snrg)stat.snrfloatS/NrSignal to Noise ratio in r band (snrr)stat.snrfloatS/NiSignal to Noise ratio in i band (snri)stat.snrfloatS/NzSignal to Noise ratio in z band (snrz)stat.snrfloatTypeObject type by Pipeline (objtype)src.classcharClassSpectra type by Pipeline (class)src.classcharSubClassStellar sub-class by Pipeline (subclass)src.classcharz? Spectroscopic redshift (z)src.redshiftdoublenullablee_z? Mean error on z (z_err)stat.error;src.redshiftdoublenullableMagType1Target Magnitude type 1 available (magtype) (G2)meta.code;instr.filtercharMagType2Target Magnitude type 2 available (magtype) (G2)meta.code;instr.filtercharMagType3Target Magnitude type 3 available (magtype) (G2)meta.code;instr.filtercharMagType4Target Magnitude type 4 available (magtype) (G2)meta.code;instr.filtercharMagType5Target Magnitude type 5 available (magtype) (G2)meta.code;instr.filtercharMagType6Target Magnitude type 6 available (magtype) (G2)meta.code;instr.filtercharMagType7Target Magnitude type 7 available (magtype) (G2)meta.code;instr.filtercharmag1? Apparent magnitude in the band 1 (mag1)magphot.magfloatnullablemag2? Apparent magnitude in the band 2 (mag2)magphot.magfloatnullablemag5? Apparent magnitude in the band 5 (mag5)magphot.magfloatnullablemag6? Apparent magnitude in the band 6 (mag6)magphot.magfloatnullablemag7? Apparent magnitude in the band 7 (mag7)magphot.magfloatnullableFileNameUnique ID for each LAMOST spectrum fits name (fits)meta.idcharBP-RPColour BPmag-RPmag from Gaia DR2 (photBpMeanMag-photRMeanMag) (bp_rp)phot.color;em.opt.B;em.opt.RdoubleTeff? Effective temperature (teff)Kphys.temperature.effectivedoublenullablelogg? Surface gravity (logg)log(cm.s**-2)phys.gravityfloatnullablee_Teff? Mean uncertainty of Teff (e_teff)Kstat.error;phys.temperature.effectivedoublenullablee_logg? Mean uncertainty of logg (e_logg)log(cm.s**-2)stat.errorfloatnullableM*? Estimated mass (mass)solMassphys.massfloatnullablee_M*? Mean uncertainty of M* (e_mass)solMassstat.errorfloatnullabletcool? White dwarf cooling age (age)yrtime.agedoublenullablee_tcool? Mean uncertainty of tcool (e_age)yrstat.errordoublenullable