MK-like spectral classification J/PASJ/76/1084 ivo://CDS.VizieR/J/PASJ/76/1084 doi:10.26093/cds/vizier/bj-2c-11w CDS Zou X. Lei Z. 2026-03-17T20:06:02Z 2025-04-30T08:21:46Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr early-type-stars subdwarf-stars morgan-keenan-classification An MK-like spectral classification has been conducted for 1224 hot subdwarf stars with LAMOST DR9 low-resolution spectra. The whole sample was divided into four categories according to the spectral line characteristics: He-normal, He-weak, He-strong C, and He-strong. Each selected spectrum was assigned a spectral class, a luminosity class, and a helium class by comparing the line depth and width with standard spectra selected in LAMOST. Relationships between atmospheric parameters and spectral classification are also presented. 2024PASJ...76.1084Z https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASJ/76/1084 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/156 : LAMOST DR7 catalogs (Luo+, 2019) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASJ/76/1084 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASJ/76/1084 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASJ/76/1084 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASJ/76/1084 https://vizier.iucaa.in/viz-bin/votable?-source=J/PASJ/76/1084 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASJ/76/1084 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/PASJ/76/1084/table2 (Main parameters for the 1224 hot subdwarfs with MK-like spectral classifications in this study) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASJ/76/1084/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/76/1084/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/76/1084/table2? GET text/xml+votable 180.0 50000 true 0.065689353 17.64803258 0.005555555555555556 5/3180 6/43 64 78 97 142 148 168 181 214 222 226 255 285 309 331 399 448 457 485 502 538 550 560 567 655 689 709 718 723 728 730 765 767 823 829 855 874 888 907 921 930 944 955 958 1004 1009 1041 1154 1162 1177 1185 1202 1213 1225 1252 1260 1279 1291 1304 1310 1335 1348 1351 1356 1362 1374 1405 1415 1429 1433 1457 1468 1542 1559 1563-1564 1570 1572 1602 1668 1672 1683-1684 1686 1688 1697 1712 1720 1724 1760 1792 1809 1913 2007 2036 2039 2041 2094 2100 2106 2131 2162 2170 2178 2180 2198 2221 2231 2233 2243 2246 2269 2292 2316 2319 2332 2346 2349 2358 2363 2370 2410-2411 2417 2420 2424 2449 2458 2468 2492 2497-2498 2507 2526 2540 2561 2584 2588 2591 2593 2600 2616 2625-2626 2641 2661 2670 2674 2693 2702 2714 2719 2730 2754 2785 2791-2792 2796 2805-2807 2823 2843 2852 2868 2871-2873 2877 2899 2958 2978 2993 3009 3076 3089 3117 3236 3242-3243 3584 3588 4105-4106 4113 4123 4150 4156 4164 4174 4178 4233 4242 4258 4271 4273 4276 4283 4285 4293 4295 4297 4319-4320 4329 4345-4346 4357 4374 4382 4399 4409 4456 4473 4481 4497 4516 4541 4566 4576 4598 4604 4624 4630 4634 4644 4648 4653 4658 4663-4664 4669 4674 4689 4697 4704 4709 4711 4716 4722 4739 4741 4753-4754 4770 4782 4790 4797 4800 4807 4817-4818 4838 4848 4857-4858 4860 4872 4880 4886 4898 4931 4938 4943 4951 4955 4957-4958 4960 4976-4977 4982 5019 5036 5047 5057 5062 5104 5113 5168 5184 5199 5204 5206 5236 5240 5252 5345 5356 5369 5396 5406 5544 5550 5573 5586 5620 5654-5655 5671 5676 5690 5698 5710 5724 5760 5838 5847 5866 5884 5908 5917-5918 5944 5986 6002 6011 6060 6145 6171 6173 6175 6177 6196 6198 6200 6204 6208 6231 6234 6246-6247 6254 6267 6276 6283 6295 6306 6333 6341-6342 6348-6349 6373 6385 6410 6435 6446 6455 6461 6477 6493 6497 6503 6507 6514 6536 6544 6547 6561 6571 6579 6588 6613-6614 6617 6659 6661 6674 6676 6679 6684 6696 6706-6707 6710 6720 6722 6724 6741 6747 6772 6807 6827 6844 6848 6850 6854 6879 6881 6889 6892 6933 6955 6975 6982 6988 6991 7009 7023 7056-7057 7072 7085 7100 7104 7257 7259 7384 7717 7861 7881 8119 8206 8212 8224 8255 8278 8281 8283-8284 8297 8308 8311-8312 8319 8325 8336 8391 8397 8417 8441 8447 8467 8469 8500 8518 8538 8543 8550 8608 8670-8671 8675 8688 8696 8707 8729 8746 8759 8770 8791 8812-8813 8829 8833 8887 8891 8928 8930 8956 8959 8982 8998 9026 9035 9046 9061 9102 9119 9123 9130 9186 9202 9211 9215 9237 9268 9273 9288 9298-9299 9304 9310 9330 9349 9357 9366 9372 9384 9399 9419 9432 9458 9470 9475 9485 9501 9505 9510 9512 9521 9585 9593 9624 9633 9664 9677 9690 9699 9727 9762-9763 9775 9790 9812 9819 9869 9882 9886 9903 9905 9909 9911 9959 9969 9975 9981 10022 10024 10042 10048 10060 10072 10083 10088 10094 10112 10120 10132 10146 10188 10296 10309 10315 10333 10335 10376 10378-10379 10382 10398 10400 10409 10439-10440 10459 10471 10475 10489 10504 10514 10552 10602 10624 10629 10661 10670 10780 10782 10850 10888 10903 10919 10945-10946 10963 10973 10985 11016 11029 11038 11047 11113 11144 11157 11159 11176 11194 11264 11275 11300 11303 11335 11338 11524 11810 12023 12289 12302 12314 12353 12358 12365 12374 12405 12407 12411-12412 12451 12498-12501 12510 12534 12565-12566 12590-12591 12608 12613 12627 12655 12672-12673 12684 12697 12717 12775 12785 12838 13026 13145 13149 13163 13169 13206 13266 13278-13279 13286 13291 13319 13339 13354 13370 13402 13404 13426 13434-13435 13437 13483 13505 13546 13592 13667 13673 13683 13690 13702 13720 13733 13769 13778 13784 13805 13807 13818 13833 13847 13855 13857 13873 13962 13972 14026 14049 14240 14552 14555 14573 14575 14578 14585 14751 14772 14775 14779 14825 14868 14888 14915 14921 14940 14943 14949 14960 14997 15017 15042 15065 15105 15108 15110 15115 15124 15130-15132 15137 15152 15172 15200 15301 15306 15310 17774 17789 17851-17852 17864-17865 17884 18003 18027 18031 18098 18125 18132 18142 18149 18153 18178 18222 18232 18337 18344 18372 18391 18409 18418 18687 18845 18854 18863 18866 18908 18934 18954 19037-19038 19040 19068 19071 19085 19098-19099 19109 19118 19120 19126 19157 19169 19244 19270 19309 19312 19330 19350 19375 19386 19397 19404 19410 19415 19419 19427 19436 19468 19544 19553 19590 19649 19653 19666 19708 19710 19875 19884 19903-19905 19957 19962 20002 20054 20072 20118 20128 20150 20215 20219 20224 20236-20237 20255 20261 20279 20294 20314 20337 20344 20390 20402 20410 20452 20474 21370 21748 21756 21803-21804 21829-21830 21867 21876 21879 21952 22248 22261 22272 22279 22281 22285 22292 22304 22308 22316 22321 22334 22339 22379 22387 22398 22400 22415-22416 22422 22428 22438 22441 22452 22458-22459 22461 22463 22471 22474 22477-22478 22480-22482 22484 22496 22503 22517 22520 22734 22743 22848 22850 22868 22889 22996 23133 23157 23173 23207 23356 23379 23421 23444 23465 23468 23470 23510 23527 23531 23545 23648 23658 23661 23691 23735-23736 23747 23761-23763 23777 23781 23790 23806-23807 23821 23823 23828 23830 23839 23845 23860 23879 23883 23893 23896 23899 23905 23909 23925 23929 23932-23933 23965 23973 23982 23988 23991-23992 23997 24003 24005 24017 24021 24024-24025 24028 24063 24074-24075 24089 24092 24120 24124 24133 24136 24150 24160 24162 24165 24184 24194 24196 24204 24233 24242 24248 24251 24292 24330 24340 24383 24391 24397 24400 24404 24415 24437-24438 24442 24446 24475 24501 24522 24529 24531-24534 24560 24570 25531 25566 25576 25582 25845 25905 25915 25921 25927 25939 25969 25972 25990 25996 26015 26066 26092 26106 26164 26184 26206 26215 26223 26317 26319 26382 26396 26402 26413 26416 26436 26444 26453 26488 26517 26533 26553 26564 26570 26586 26598 26603 26606 26609 26937 27026 27045 27061 27087 27095 27099 27175 27187 27208 27227 27259 27317 27321 27324-27325 27345 27350 27352 27379 27478 27486-27487 27550 27603 27633 27713 27731 27754 27814 27817 27823 27834 27839 27861 27871 27909 27912 27918 27956 27963 27979 28068 28134 28185 28221 28224 28262 28266 28271 28302 28323 28331 28334-28335 28344 28370 28388 28398 28408 28440 28465 28579 28586-28587 28620 28622 28625 28646 28666 30172 30196-30197 30206 30549 31062 31138 31142 31231 31286 31359 31381 31386 31411 31413 31419 31424 31453 31470 31518 31528 31549-31550 31613 31622 31624 31627 31640 31683 31687 31715 31721 31741 31810 31856 31858 31884 31912 31914 31923 31955 31961 31963 31989 32078 32100 32142 32160-32161 32265 32283 32300 32307-32308 32330 32335 32354 32369 32372 32380 32385 32433 32456 32476 32485-32486 32489 32496 32507 32528 32550 32633 32655 32659 32674 32707 32721 32724 32762 36851 40948 1.9867573869263685e-19 3.916500758235022e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PASJ/76/1084?format=ascii Optical default J/PASJ/76/1084/table2 Main parameters for the 1224 hot subdwarfs with MK-like spectral classifications in this study n_ObsID [*+ ] Note on LAMOST obsid (1) meta.note char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination sign (J2000) deg pos.eq.dec;meta.main SNRU Signal-to-Noise Ratio stat.snr float Gmag Gaia G magnitude mag phot.mag;em.opt float e_Gmag rms uncertainty on Gmag mag stat.error;phot.mag float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int ObsID The LAMOST obsid meta.id;meta.main long Teff ? Effective temperature K phys.temperature.effective int nullable e_Teff ? rms uncertainty on Teff K stat.error;phys.temperature.effective int nullable logg ? Surface gravity log(cm.s**-2) phys.gravity float nullable e_logg ? rms uncertainty on logg log(cm.s**-2) stat.error float nullable log(nHe/nH) ? Helium abundance (log[N(He)/N(H)] (2) phys.abund.Y float nullable e_log(nHe/nH) ? Uncertainty flag on log(nHe/nH) (2) stat.error float nullable SpClass MK-like Spectral type obtained in this study src.spType char He-class The Helium class obtained in this study meta.code.class char LumClass The luminosity class obtained in this study src.class.luminosity char SpNum The numerical form of MK-like Spectral type meta.code.class float HeNum The numerical form of Helium class meta.code.class int LumNum The numerical form of The luminosity class src.class.luminosity int