J/ApJ/943/147ivo://CDS.VizieR/J/ApJ/943/147doi:10.26093/cds/vizier.19430147CDSShi F.Zhang H.Fu J.Kurtz D.Xiang M.2025-03-03T20:11:14Z2025-01-21T08:06:07ZCDS support team

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

cds-question@unistra.frap-starsvisible-astronomyspectroscopystellar-spectral-typesabsolute-magnitudetwo-color-diagramsWe present a sample of 2700 Ap stars in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR9 catalog. The candidates are first selected to be in a temperature range typical of Ap stars by using the BP-RP color index from Gaia DR3. Then the 5200{AA} flux depression features characteristic of Ap stars are visually checked in LAMOST DR9 spectra. The detailed spectral features are given by applying a modified spectral classification program, MKCLASS. The stellar parameters of these Ap stars, such as the Teff, logg, [Fe/H], [Si/H], and vsini, are either extracted from a hot star catalog or derived through empirical relations and then a statistical analysis is carried out. The evolutionary stages are also discussed. Finally, we discuss the rotation and pulsation features of those that have TESS or Kepler light curves. Among these Ap stars, we find seven new rotation variables, one new roAp star, and a new {delta} Scuti pulsation of a previously known roAp star.2023ApJ...943..147Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/943/147CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/162 : General Catalogue of Ap and Am stars (Renson+ 1991)III/260 : General Catalogue of Ap and Am stars (Renson+ 2009)V/156 : LAMOST DR7 catalogs (Luo+, 2019)I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/A+AS/128/573 : ubvy{Delta}a photometry of Renson stars (Maitzen+ 1998)J/A+A/455/303 : Nainital-Cape Survey. II. Null results (Joshi+, 2006)J/MNRAS/460/1912 : The Catalog of HgMn Stars (Ghazaryan+, 2016)J/AJ/151/13 : LAMOST-Kepler MKCLASS spectral classification (Gray+, 2016)J/A+A/601/A14 : Radial velocities of magnetic Ap stars (Mathys, 2017)J/MNRAS/466/546 : Parameters for the 172 {lambda} Boo stars (Murphy+, 2017)J/ApJ/873/L5 : Magnetic fields of Ap/Bp stars (Chojnowski+, 2019)J/MNRAS/487/5922 : CP stars catalog (roAp, He-weak, He-rich) (Ghazaryan+, 2019)J/ApJS/242/13 : Am stars from LAMOST DR5 (Qin+, 2019)J/A+A/628/A81 : Gaia DR2-based catalogue of 237 Ap stars (Scholz+, 2019)J/MNRAS/493/3293 : Rotational periods of magnetic CP stars (Bernhard+, 2020)J/A+A/640/A40 : 1002 mCP stars from LAMOST DR4 (Hummerich+, 2020)J/A+A/660/A70 : Long-period Ap stars with TESS data (Mathys+, 2022)J/A+A/662/A66 : Hot stars from LAMOST DR6 (Xiang+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/943/147https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/943/147http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/943/147https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/943/147https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/943/147http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/943/147GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/943/147/tablea1 (The Ap star catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/943/147/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/943/147/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/943/147/tablea1?GETtext/xml+votable180.050000true29.3159.790.0055555555555555564/1499 5/321 323-324 332-334 338 344 346 353 355 357-358 362 364 369-370 415 434 436 457 464 482 488 756 783-784 811 834 896 898 3547 3597 5518 5530-5531 5543 5549 5553 5555-5556 5559 5562 5565 5567 5602 5610-5611 5892 5913 5915 5918 5937 5940-5941 5943 5953 5955-5956 5958 5961 5966 5985 5987-5990 6000 6003 6010-6011 6044 6081 6084-6086 6094-6098 6116 6123-6125 6130 6136 6/7 111 298 323 350 371 375 382 467 485 508 511 759 799 805 862 880 883 885 976 990 1025 1029-1031 1038 1044-1046 1056 1064 1066 1085 1096-1097 1109 1113 1146 1149 1152 1171 1181 1186 1198 1210-1211 1223 1225-1226 1229 1238 1243 1252 1258 1262-1263 1265 1270 1276 1279-1281 1283 1289 1300-1302 1304-1306 1310-1311 1319 1326 1341 1343 1345-1350 1356 1358 1360 1362-1364 1366-1367 1369-1370 1380 1382-1383 1388 1390-1391 1396 1405 1409 1419 1425-1427 1436 1438-1439 1441-1446 1452-1453 1455 1460 1463-1465 1467 1469-1474 1484-1485 1488 1490 1494 1498 1506-1508 1510-1511 1513 1515-1517 1521-1522 1532-1533 1536 1541 1555 1563 1568 1573 1590 1597 1601-1602 1610 1617-1620 1623 1625 1627 1629-1631 1634 1639 1644 1648-1649 1651-1653 1655 1658-1659 1681 1683-1684 1693-1695 1703 1709 1711-1712 1715 1717-1718 1721 1733 1740 1742 1748-1749 1751-1754 1756-1758 1762-1764 1766-1770 1773-1775 1777-1780 1782-1784 1786-1788 1790 1794 1796-1797 1800 1806 1809 1812 1821 1823 1832-1834 1836 1842 1848 1850 1852 1855 1863-1864 1866 1871 1881 1888 1890 1892 1896 1920 1922 1924 1932-1934 1939-1942 1944-1945 1948 1956-1958 1960 1962-1963 1965-1966 1968 1975 1985 1987 1990 1992 2003 2017 2024 2030 2057 2092 2157 2170 2228 2339 2356 2371 2387 2401 2472 2476-2477 2500 2505 2511 2524 2528 2536 2545 2547-2548 2551 2556 2559 2668-2670 2684 2694 2736 2759 2781 2793 2821 2823 2836 2841-2842 2869 2871-2872 2878 2901-2902 2906 2908 2915-2916 2922 2925-2926 2929-2930 2938-2939 2943 2961-2962 2970 2973 2975 2977 2980 2989 2996 3000-3002 3006 3011-3012 3014-3015 3017 3021-3022 3077 3079 3084-3086 3088 3090 3095-3097 3099 3101 3103 3105 3107-3108 3112 3117 3120-3121 3124 3140-3142 3144-3145 3147 3150 3152-3154 3162 3167-3168 3170 3172-3173 3176 3183-3184 3187 3189-3191 3196 3204 3207 3211 3213 3220-3221 3224 3226-3229 3232 3236-3237 3242-3243 3249 3254 3256-3258 3264-3265 3267-3268 3273 3329-3331 3343 3359-3360 3362 3368 3588 3591 3596-3597 3601-3602 3608 3622 3624-3626 3629 3712 3718 3817 4142 4172 4182 4253 4274-4275 4279 4334 4342 4371 4660 4668 4697 4724 4774 4777 4780 4843 4935 4960 4963 5038 5188 5264 5322 5453 5496 5523 5634 5704 6144 6154 6161 6170 6179 6181 6238 6286 6294 6305 6313 6317 6320 6325 6335 6432 6456 6493 6522 6621 6660 6666 6680 6689 6691 6699 6702 6705 6709-6710 6712 6728 6754 6766 6772 6785-6786 6789-6790 6819 6822 6825-6826 6828 6835 6837 6843 6845-6846 6869 6871 6902 6904 6948 6956 6994 7024 7045 7047 7061 7064 7072 7088 7107 7112 7117 7137 7139 7317 9281 9284 9384 9547 9574 9725 9826 10049 10074 10096 10248 10456 10582 11006 11538 12289 12356 12365 12413 12553 12576 12625 12723 12980 13028 13035 13045 13049 13084 13103 13106 13117 13119 13144 13169 13214 13248 13262 13271 13274 13279 13283 13285 13288 13291-13292 13295 13388 13438 13524 13540 13616 13619 13693 13761 13781 13797 13799-13800 13806 13812 13817 13821 13856 13865 13874 13880 13883 13898 13924 13952 13959-13960 13969-13970 13972 13974-13975 13979 13981-13982 14005 14016 14018 14023 14047 14058 14061-14062 14085 14087 14100 14103 14110 14142 14159 14174-14176 14178 14182-14183 14185 14187 14193-14195 14197-14198 14200 14202 14224 14228 14231-14232 14237 14243 14245 14247 14259-14260 14263 14272 14274-14278 14281 14283 14286 14367 14397 14401 14410-14411 14421 14424-14425 14429-14430 14433 14435-14436 14438 14441 14443 14453 14468 14470 14541 14558-14559 14580 14584 14590 14613 14644 14647 14660 14683 14694-14695 14703 14707 14712 14714-14715 14723 14726 14730 14735 14743-14744 14746 14749-14750 14752 14771-14772 14774 14781 14788 14792-14793 14798 14804-14805 14820 14822 14824-14826 14836 14839 14928 14930 14932-14933 14935 14944 14951 14957 14962 14964-14965 14968 14974 15101 15104 15112-15113 15122 15124 15146 15155 15277 15366 15372 15461 15488-15489 15492-15493 15496 15624 15882 18134 18352 18883 18983 19057 19157 19197-19198 19346 19437 19778 19813 20147 20174 20280 20326 20380 20478 21356 21359 21446-21447 21453 21459 21473 21488 21491 21493 21500 21597 21599 21619 21622 21629-21630 21711 21718 21727 21732-21733 21735 21741 21743-21744 21750 21752 21754-21756 21758 21762-21763 21771 21775 21796 21798 21807 21861 21866-21867 21891 21908 21923 21925 21927 21930 21934 21938 21941 21945-21946 21967 22004-22005 22015 22028 22030-22031 22034-22035 22040-22041 22046 22053 22055 22064 22066 22070 22076 22078 22091-22092 22095-22098 22100-22102 22104 22107 22111-22113 22115 22118-22119 22130 22135 22138-22139 22141-22142 22145 22161 22164 22167 22171 22183-22184 22188-22190 22192 22194-22195 22201 22206-22207 22209-22211 22219 22230-22233 22235 22240 22242 22245 22247 22252-22253 22255-22257 22259 22264 22272 22278 22280 22282 22285-22286 22290 22293-22295 22301-22302 22305 22309 22312-22313 22315-22316 22318 22326 22329 22333 22364 22368 22385 22387 22400-22401 22404 22414-22415 22417 22419 22426 22432-22434 22436 22438-22439 22448 22452 22455 22460 22464-22465 22473 22485 22498-22499 22505 22507-22508 22510-22511 22513 22745 22857 22862 22876 22880 22908 22923 22945 22963 23004 23167 23278 23329 23347 23363 23369 23379 23397 23416 23556 23562 23564 23573-23575 23577-23580 23584 23609 23614 23616 23618-23619 23624 23626-23627 23629-23630 23636-23637 23641 23647 23649 23657-23659 23666-23667 23669 23677-23679 23687 23700 23702 23708 23711-23712 23717-23719 23732-23733 23742 23744-23745 23753-23757 23769-23770 23779-23780 23782-23784 23786 23788-23789 23791-23794 23796-23797 23800-23801 23803-23804 23806 23808-23809 23811 23816 23818 23829-23830 23839 23843 23849 23851 23853-23857 23859 23861 23868 23870-23872 23875 23878 23880 23882-23883 23886-23888 23896 23902 23904 23906 23909-23912 23916-23918 23923 23931-23932 23936-23937 23939 23945 23947 23964-23966 23969-23974 23976 23978 23981-23983 24004-24005 24008 24010 24018 24022 24026 24028-24029 24033-24036 24038-24039 24048 24050 24056-24057 24059 24061 24071 24078 24080 24087-24088 24092-24094 24123 24127-24130 24133-24134 24136-24137 24139 24142-24144 24146-24147 24149-24151 24153-24155 24157-24161 24167 24173 24181 24184 24187-24188 24190 24203 24234 24236 24240 24244 24246-24247 24254 24258 24262 24290-24292 24298-24299 24304 24316 24318 24321-24322 24328-24330 24333 24335 24348 24351 24355-24356 24358 24361-24365 24369-24371 24373 24398-24400 24402 24413-24414 24416 24418 24421-24422 24425-24430 24442-24443 24446 24448 24453-24454 24461-24463 24468-24469 24471-24472 24474 24476-24477 24480 24487-24489 24505-24507 24510 24512 24515 24517-24519 24524-24525 24528-24529 24533 24535-24536 24540-24541 24550 24552-24553 24556-24558 24564 24566 24568 24570-24572 26086 26443 27051 27119-27120 27148 27158 27210 27232 27288 27414 27764 28142 28238 29695 29935 29945 29947 30348 30392 30433 30439 30442 30490 30675 31030 31102 31147 31573 31761 31773 31792 31814 31836 31863 31943 32046 32128 32170 32173 32244 32251 32254 32280 32286 32383 32409 32554 32570 32673https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/943/147?format=asciiOpticaldefaultJ/ApJ/943/147/tablea1The Ap star catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpecIDLAMOST DR9 spectrum identifiermeta.id;meta.datasetcharLMJD[55875/59283] Local Modified Julian Daydtime.epochintObsID[2416019/898308059] LAMOST DR9 Observation identifiermeta.id;obslongRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-9/72] Declination (J2000)degpos.eq.dec;meta.mainSNRg[50/999] Signal-to-Noise of Gaia DR3 G band magnitudestat.snr;em.optfloatGMag[5.2/20.3] Absolute Gaia DR3 G band magnitude (1)magphys.magAbs;em.optfloatG0mag[-5/11.4]? De-reddened Gaia DR3 G band magnitudemagphot.mag;em.optfloatnullable(BP-RP)[-0.2/1.6] Gaia DR3 (Blue-Red) passband colormagphot.color;em.opt.B;em.opt.Rfloat(BP-RP)0[-1.8/0.71]? De-reddened Gaia DR3 (Blue-Red) passband colormagphot.color;em.opt.B;em.opt.Rfloatnullablea[0.5/0.61] The a index value (2)magphot.mag;arith.ratio;em.optfloatDist[77/9574]? Distance from Bailer-Jones+ 2021, I/352pcpos.distancefloatnullableliblamostSpectral classification from liblamost librarysrc.spTypecharlibnor36Spectral classification from libnor36 librarysrc.spTypecharNoteRotation and pulsation feature notes; if availablemeta.notecharGaiaDR3Gaia DR3 identifiermeta.id;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlchar