Catalog of hot subdwarf candidates J/A+A/693/A245 ivo://CDS.VizieR/J/A+A/693/A245 doi:10.26093/cds/vizier.36930245 CDS Wu H. Bu Y. Zhang J. Zhang M. Yi Z. Liu M. Kong X. Lei Z. 2025-03-03T20:01:23Z 2025-01-22T07:38:40Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr subdwarf-stars visible-astronomy sloan-photometry Hot subdwarfs are essential for understanding the structure and evolution of low-mass stars, binary systems, astroseismology, and atmospheric diffusion processes. In recent years, deep learning has shown significant progress in hot subdwarf searches. However, most approaches tend to focus on modeling with spectral data, which are inherently more costly and scarce compared to photometric data. To maximize the reliable candidates, this paper utilized Sloan Digital Sky Survey (SDSS) photometric images to construct a two-stage hot subdwarfs search model called SwinBayesNet, which combines the Swin Transformer and Bayesian Neural Networks. This model not only provides classification results but also estimates uncertainty. Five classes of stars prone to confusion with hot subdwarfs, including O-type stars, B-type stars, A-type stars, white dwarfs (WDs), and blue horizontal branch stars (BHBs), were selected as negative examples for the model. On the test set, the two-stage model achieved F1 scores of 0.90 and 0.89 in the two-class and three-class classification stages, respectively. Subsequently, with the help of Gaia DR3, a large-scale candidate search was conducted in SDSS DR17. We found 6804 hot subdwarf candidates, including 601 new discoveries. Based on this, we applied a model threshold of 0.95 and Bayesian uncertainty estimation for further screening, refining the candidates to 3413 high-confidence samples, which included 331 new discoveries. 2025A&A...693A.245W https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/693/A245 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022) https://skyserver.sdss.org/DR17 : SDSS DR17 Home Page https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/693/A245 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/693/A245 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/693/A245 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/693/A245 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/693/A245 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/693/A245 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/693/A245/table9 (6804 Catalog of hot subdwarf candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/693/A245/table9? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/693/A245/table9? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/693/A245/table9? 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20249-20250 20254-20255 20261 20265 20273-20274 20276 20290 20294 20296 20302 20306 20308 20314 20317 20321-20322 20329 20335 20337 20340 20343-20344 20347-20348 20351 20355 20357-20358 20360 20363 20371 20373 20375 20377-20379 20383 20390-20391 20394 20397 20401-20402 20404-20405 20410 20412 20414 20417 20420 20422 20430-20432 20441 20443 20449-20450 20452-20453 20457 20462 20464 20466 20473 20846 20855 20858 20860 20862-20863 20881-20882 20886-20889 20932 20934 21433 21502 21531 21534-21535 21544 21546 21549 21552-21553 21555 21559 21564 21576 21582-21583 21600 21602-21603 21605 21607 21616-21617 21751 21756 21763 21765-21766 21773-21774 21776-21777 21780-21781 21783-21785 21787 21813-21814 21818-21819 21822-21823 21825 21827 21829 21831-21832 21846-21848 21854 21857 21859-21860 21862 21865 21867 21871 21873-21874 21876 21878 21880 21882-21885 21893 21895 21907 21909-21910 21917 21930-21932 21935-21938 21952 21954 21956 21961 21964 21969 21972-21973 21983-21984 21986 21995 21997-21998 22002 22007-22009 22011 22013 22102-22103 22109-22110 22132 22159 22162 22169 22190 22211 22228 22236 22239 22272 22274 22339 22341-22343 22345 22347-22348 22351 22354 22358 22360-22361 22363 22365-22366 22371 22374-22375 22380 22382 22384 22386-22387 22389-22390 22394 22398 22411 22432 22443-22445 22447 22454-22456 22458-22461 22463 22471 22480-22481 22484-22485 22489 22492 22494 22497 22499 22504-22505 22507-22509 22513 22519-22521 22525 22527 22638 22650 22670 22735-22736 22740 22743 22756 22763 22770 22782 22795 22801-22803 22830 22838 22843 22848 22856 22860 22863 22868 22871 22878 22884 22890 22899-22900 22908-22909 22911 22913-22914 22916-22917 22926 22933 22937 22945 22947 22950 22955 22976 22993 22996 23053 23065 23072 23101 23117 23119 23124 23196 23205 23207 23259 23269 23297 23338 23352 23356-23357 23394 23404 23407 23429 23444 23465 23468 23531 23545 23563 23579 23601 23618 23623 23625 23628-23629 23640 23693 23811-23814 23824-23825 23828-23829 23833 23837 23839 23860-23861 23882 23906 23998 24043 24055-24056 24059 24063 24095 24098 24118-24119 24138 24160 24162 24165 24242-24243 24248 24293 24306 24329-24330 24332 24336-24337 24339-24341 24344 24384 24389 24401 24442 24445 24471 24477 24487-24488 24528 24531-24534 24877 24879 24887 24890-24891 24899 24914 24928 24980 24983 25026 25032 25037 25050 25061 25063 25073 25079-25080 25083 25087 25216 25220 25222-25223 25225 25230 25234 25245-25246 25269 25319 25504 25511 25513 25515 25518-25519 25522 25531 25534 25566 25579 25586 25589 25592 25597 25669 25680-25681 25692 25713 25716-25718 25770 25812 25822 25842 25845 25851 25855 25879 25887 25898 25905 25909-25910 25915 25921 25926 25928 25931 25944 25950-25952 25956-25958 25967 25969-25973 25976-25978 25987 25993 25996-25998 26002 26006-26007 26009 26011 26015 26018 26020-26022 26029-26030 26033 26037 26040 26044-26045 26047-26049 26051-26052 26060 26066-26067 26070 26077 26081 26085 26088 26092 26104-26106 26113 26124-26125 26127 26159-26160 26164 26175 26180 26184 26187 26191 26193 26196 26198 26204 26206 26208 26210 26213 26215 26223 26233 26247-26248 26251 26254-26256 26260 26265 26270 26285 26288 26292 26296-26297 26299 26307 26309-26310 26316 26319 26323 26326 26329 26339 26343-26344 26356 26360 26371 26377 26380 26382 26384 26388-26389 26391-26393 26395-26398 26400 26404-26405 26407 26413 26416 26420 26425 26433 26436-26437 26440 26443-26444 26450-26452 26456 26458 26461 26463-26464 26467 26469 26477 26482 26486 26492-26493 26495 26501 26505 26508 26512 26518-26520 26525 26529-26530 26533 26535 26546 26551 26553 26555 26558-26559 26564 26567 26569-26570 26578-26579 26586 26592 26594 26598 26602-26603 26606 26608 26610-26611 26615 26623 26863 26865-26866 26868 26870 26872 26897 26903 26926 26930 26935-26937 26943 26948 26951 26959-26960 26964 26969 26988-26989 26991-26992 26996 27000-27001 27012 27026 27029 27036 27040 27043 27051 27056-27058 27061 27066 27069 27074-27075 27078 27082 27087 27095-27096 27099-27100 27106-27107 27114 27120-27121 27125 27132 27167 27187 27192 27204 27209-27210 27215 27224 27227 27229 27235-27236 27239-27240 27245 27247-27248 27256 27258-27259 27271 27282-27283 27286-27287 27292 27298 27302 27313 27316-27318 27322-27323 27325 27332 27335 27339 27343 27345 27348 27350 27352 27357 27372 27374-27375 27377 27383 27391 27395 27398 27409 27419 27431 27434 27442 27451 27475 27478-27479 27484 27486-27487 27491 27493 27495-27496 27522 27524 27541-27542 27548 27550 27555 27557 27562 27568 27571-27572 27579 27582 27593-27594 27602-27603 27610 27628 27632 27636 27638-27640 27644 27663 27665 27667 27674 27679 27681-27684 27690 27692 27694-27695 27699 27703-27704 27707 27713 27721 27728 27731 27741 27744 27746-27747 27749-27750 27752 27757 27764 27769 27776 27782 27788 27794 27806 27817 27824 27826-27828 27832 27834 27836 27838 27840-27842 27861-27862 27866 27871 27873-27874 27881 27889 27895 27898 27901 27905 27912-27913 27916 27918-27919 27932 27938 27940 27956 27959 27963-27964 27968 27975 27986 27999 28001 28003 28016 28021 28023 28025 28034-28036 28047 28064-28065 28068 28094 28106-28107 28111-28112 28115 28119 28125 28128-28130 28142-28144 28150 28155 28157 28203 28209 28211 28218-28219 28221 28225 28229 28233 28238-28240 28242 28246-28247 28249 28262 28264 28271 28274 28297 28302 28305 28310 28318 28321 28323 28331 28334 28338 28340 28342 28344 28353 28363 28366 28369 28373 28375 28377-28378 28381 28385 28387 28406 28408-28409 28415-28416 28420 28424 28427 28433 28440 28446 28448 28451 28455 28461 28465 28471 28475 28485 28487 28492 28497 28507 28513 28519 28522 28529-28530 28542 28545 28554 28565-28566 28568 28571-28572 28576 28579-28580 28584 28587 28591 28597-28598 28600 28607 28622 28638 28646 28659 28666 28669-28670 29407 29426-29427 29430 29438 29694 29773-29774 29797-29799 29801 29803-29804 29807-29810 29816 29818 29889 29892 29895 29898-29900 29903-29904 29969 29972 30013 30015-30016 30021 30030-30031 30047 30050 30060-30061 30064-30065 30069 30071 30094-30095 30099-30100 30102-30105 30107-30110 30113 30116 30119 30125 30128-30129 30145-30146 30165-30167 30171 30193 30195 30201 30203 30382 30394 30545-30547 30576-30578 30580 30582 30585 30754-30755 30759-30760 30764 30767 30770-30771 30777-30778 30791 30799 30803 30811 30826 30829 30832-30833 30835 30840 30847 30917-30918 30925 30927 30936-30937 30949 30951 30955 30962 30967-30968 30974-30975 31021 31023 31054-31055 31058 31062 31066 31068 31077 31084-31085 31089 31096 31099 31102 31109 31118 31124 31129 31134 31138 31142-31143 31146-31150 31152 31154-31155 31160-31161 31165-31166 31169-31170 31173 31184 31188 31210 31229 31231 31279 31283 31286 31289-31291 31300 31302-31303 31308 31313 31315 31317 31319-31321 31323-31325 31330 31332-31334 31337 31339 31346 31352 31357 31359 31370-31371 31373-31375 31380-31381 31386-31387 31392-31393 31395 31397 31403-31405 31407-31408 31411-31413 31421 31424 31426 31437-31439 31444-31445 31447-31450 31452-31453 31455 31460 31465 31473 31475 31480 31482 31486 31488-31490 31507-31509 31514 31516 31519-31520 31522 31532-31533 31536 31539 31542 31544-31545 31548-31550 31554 31563 31572-31573 31575 31579-31582 31585-31588 31590-31591 31594 31597-31598 31601 31613 31617 31619-31620 31622 31627 31629-31630 31632-31634 31638 31640 31642 31644 31646-31647 31653-31654 31657 31659 31664-31666 31668-31670 31672-31673 31676 31679 31682-31684 31686-31687 31689 31691-31694 31696 31700-31702 31708-31709 31718-31719 31721-31723 31731 31736 31739-31741 31743-31744 31750-31751 31757-31762 31768-31770 31779 31785-31787 31792 31794 31800 31802-31803 31850 31853-31855 31864-31866 31868 31870-31871 31884-31885 31889-31890 31893 31904-31905 31907-31908 31918 31936 31939-31941 31953-31954 31956-31957 31974 31980-31981 31983 31986 31994 32044 32046 32055 32057 32059 32061-32063 32096 32098 32122 32132-32133 32145 32155 32178-32179 32188 32190 32192-32194 32196-32197 32200 32202 32212 32224 32256-32258 32264 32266 32288 32290-32291 32294-32296 32298 32300 32303 32325 32335 32344 32346-32347 32350 32368-32369 32371-32372 32375 32381 32384-32386 32390-32392 32394 32398-32400 32403 32408-32409 32411-32412 32414-32416 32419 32422-32423 32429-32431 32433-32434 32441-32444 32448 32450-32451 32454-32456 32458-32460 32468 32470 32476 32479 32485-32487 32489 32491 32496 32498-32502 32508 32510 32517 32525-32528 32530-32532 32536-32538 32547 32553-32555 32557-32558 32560 32641-32642 32644 32648 32650-32651 32654-32655 32667 32677-32682 32684 32686 32688-32689 32691 32696-32698 32700 32702 32762-32763 36334 36459 36466 36475 36528 36532 36540 36607 36672 36734 36779 36781 36791 36795-36796 36805 36835-36836 36848 40943 40951 40953 40955 40959 44026 44344 44347-44348 44367 44386 44389 44391 44393 44396 44410 44483-44485 44491 44494 44498 44504 44513 44521 44524 44526 44575 44599 44607 44618 44643 44649 44651-44652 44737 44740 44745 44747-44748 44751 44773-44775 44780-44781 44783 44793-44794 44865 44868 44872-44873 44876 44897 44900 44904 44906 44983 45045-45046 45053 48560 48562 48571-48572 48695 48718-48719 48731 48736-48737 48741 48743 48752-48753 48756 48764-48765 48767 48851-48853 48855 48857 48859-48860 48862-48863 48881-48882 48884-48886 48889-48892 48894 48905-48907 48917 48919 48928-48929 48931 48935 48941 48953 48960 48963 48968 48974-48975 48990 49003 49009 49012 49015 49020 49022 49026 49032 49079 49093 49095-49096 49098-49100 49104 49110-49111 49114-49115 49121-49124 49126 49128-49130 49132 49134-49136 49138-49139 49141-49142 49144 49149 49151 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/693/A245?format=ascii Optical default J/A+A/693/A245/table9 6804 Catalog of hot subdwarf candidates 2episnorm Two-class classification epistemic uncertainty (normalised) (Two_epistemic_norm) stat.error double 2aleanorm Two-class classification aleatoric uncertainty (normalised) (Two_aleatoric_norm) stat.error double 2epissoft Two-class classification epistemic uncertainty (soft) (Two_epistemic_soft) stat.error double 2aleasoft Two-class classification aleatoric uncertainty (soft) (Two_aleatoric_soft) stat.error double 2rel Two-class classification reliability (Two_reliability) meta.code.qual char 3prob Three-class classification predicted probability (Three_probability) stat.fit.goodness double 3episnorm Three-class classification Epistemic uncertainty (normalised) (Three_epistemic_norm) stat.error double 3aleanorm Three-class classification aleatoric uncertainty (normalised) (Three_aleatoric_norm) stat.error double 3epissoft Three-class classification epistemic uncertainty (soft) (Three_epistemic_soft) stat.error double 3aleasoft Three-class classification aleatoric uncertainty (soft) (Three_aleatoric_soft) stat.error double 3rel Three-class classification Reliability (Three_reliability) meta.code.qual char Source The source of candidates, Culpan or New (Source) meta.note char Highconf [Yes No] Confidence status of candidates (High_confidence) meta.code.status;stat.fit.param char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RAJ2000 Right Ascension (J2000) (RA) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000) (DEC) deg pos.eq.dec;meta.main SDSS objID in SDSS DR17 (SDSSDR17_objID) meta.id;meta.main char GaiaDR3 source_id in Gaia DR3 (GaiaDR3_source_id) meta.id char 2prob Two-class classification predicted probability (Two_probability) stat.fit.goodness double