J/ApJS/279/55ivo://CDS.VizieR/J/ApJS/279/55CDSKim I.-J.Pyo J.Seon K.-I.Jeong W.-S.Nakagawa T.Matsumoto T.2026-06-03T13:00:27Z2026-06-03T13:36:27ZCDS support team

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

cds-question@unistra.frgalaxy-planesmilky-way-galaxyh-ii-regionsinfrared-photometryinterstellar-mediumsurveysUsing data from the MIRIS Pa{alpha} Galactic Plane Survey (MIPAPS), we present a Pa{alpha} 1.87{mu}m line image of the entire Galactic plane within the latitude range of -3{deg}<~b<~+3{deg}, revealing numerous Pa{alpha} features. Based on the MIPAPS Pa{alpha} image and the Wide-field Infrared Survey Explorer (WISE) HII region catalog, we compile a catalog of 1489 Pa{alpha} emission-line sources in the Galactic plane within 90{deg}<~l<~330{deg}. By comparing our Pa{alpha} images with H{alpha} images constructed from the IPHAS and VPHAS+ survey data, we demonstrate the advantages of Pa{alpha} line observations. We identify 902 Pa{alpha} sources associated with HII regions, and newly confirm 619 HII region candidates as definitive HII regions through Pa{alpha} or H{alpha} detections. We also identify 261 extended and 326 pointlike Pa{alpha} sources not included in the WISE catalog, most of which have H{alpha} counterparts in the IPHAS or VPHAS+ images. A search of the SIMBAD database indicates that these sources originate from diverse object types. By measuring Pa{alpha} and H{alpha} fluxes, we estimate the E(B-V) color excesses derived from extended emissions for 138 Pa{alpha} sources, showing good agreement with values obtained from spectrophotometry of ionizing stars in previous studies. Furthermore, we calculate total Lyman continuum luminosities for 42 Pa{alpha} sources, providing constraints on the distances to HII regions and the spectral types of their ionizing stars. These results highlight the scientific potential of Pa{alpha} line observations and the benefits of combining multiple hydrogen recombination lines in exploring ionized regions.2025ApJS..279...55Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/279/55CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : 2MASS All-Sky Extended Source Catalog (XSC) (IPAC/UMass, 2003-2006)II/321 : IPHAS DR2 Source Catalogue (Barentsen+, 2014)II/386 : VPHAS+ DR3 survey (Drew+, 2025)J/A+A/397/133 : Star-forming complexes in the Galaxy (Russeil+, 2003)J/A+A/470/161 : UBV phot. of HII regions exciting stars (Russeil+, 2007)J/A+A/480/409 : IPHAS symbiotic stars candidates (Corradi+, 2008)J/MNRAS/384/1277 : H{alpha} emission line sources from IPHAS (Witham+, 2008)J/A+A/504/291 : Candidate Planetary Nebulae in IPHAS cat. (Viironen+, 2009)J/MNRAS/415/103 : IPHAS T Tauri candidates in IC 1396 (Barentsen+, 2011)J/ApJS/212/1 : The WISE catalog of Galactic HII regions (Anderson+, 2014)J/MNRAS/440/2036 : VPHAS+ survey synthetic colours (Drew+, 2014)J/A+A/569/A125 : Spiral structure of the Milky Way (Hou+, 2014)J/A+A/567/A49 : Spectra of IPHAS symbiotic stars (Rodriguez-Flores+, 2014)J/MNRAS/443/3388 : IPHAS extended planetary nebulae release 1 (Sabin+, 2014)J/AJ/150/147 : Galactic HII regions. I. Stellar distances (Foster+, 2015)J/MNRAS/453/1026 : Lagoon Nebula M8 T tauri accretion rates (Kalari+, 2015)J/MNRAS/446/274 : A deep catalogue of classical Be stars (Raddi+, 2015)J/A+A/591/A140 : IPHAS-selected classical Be stars (Gkouvelis+, 2016)J/MNRAS/484/5102 : NGC 6383 T Tauri accretion rates (Kalari, 2019)J/A+A/638/A21 : Herbig Ae/Be and classical Be stars catalog (Vioque+, 2020)J/A+A/692/A103 : New planetary nebula candidates (Li+, 2024)http://miris.kasi.re.kr/miris/ : MIRIS homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/279/55https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/279/55http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/279/55https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/279/55https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/279/55http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/279/55GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/279/55/table3 (MIPAPS catalog of Pa{alpha} emission-line sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/279/55/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/279/55/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/279/55/table3?GETtext/xml+votable180.050000true316.340549.60880.005555555555555556Cone search capability for table J/ApJS/279/55/table4 (WISE HII region sources with No MIPAPS Pa{alpha} detection)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/279/55/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/279/55/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/279/55/table4?GETtext/xml+votable180.050000true316.0828349.747850.0055555555555555565/327 757 767 822 825 909 929 931 3565 3574-3578 3580 3853 3856-3857 3863 3865 3868 3916 3920 5411 5414 5511 5516 5528 5552 5909 5940-5941 5943 6106 6138 9311 9335 9341-9342 9436 9460 9462 9467 9473-9476 9480-9482 9504 9506 9812 9817 9820 9974 9983 10399 10413-10415 10419-10422 10424 10440 10442 10444-10445 10450-10451 10453 10624 10755-10756 6/1287 1293 1297-1299 1302-1303 1305-1307 1319 1329-1330 1332 1335-1337 1340 1342 1344 1346-1347 1352 1354 1376 1378-1379 1384-1386 1415 1426 1428-1430 1433 1436 1446 1456-1457 1460 1462 1470 1748 1751 1758-1759 1780-1782 1785 1789-1791 1801 1804-1805 1808 1811 1814 1827 1833 1835-1836 1838-1839 1848 1925 1927-1930 1932-1934 1936 1938 1944 1946 1953 1956 1960 1962-1963 2973 3011-3012 3036 3038-3039 3046 3050 3052-3053 3057-3061 3063 3065-3067 3152 3156-3157 3164-3166 3175 3181-3183 3188 3190 3195-3196 3198 3231 3253 3258 3262 3268 3270-3272 3279 3282-3284 3286 3292 3296 3298-3299 3304-3305 3307-3309 3311-3313 3320 3322 3329 3337-3338 3597 3605-3609 3614 3625-3626 3629-3630 3632 3634-3635 3641-3644 3648-3649 3652 3680 3712-3713 3715 3722-3723 3728-3730 3736 3746-3748 3752 3754-3755 14029 14031 14060 14063 14072 14076 14078-14079 14250-14251 14253-14256 14259 14264 14266-14267 14269-14270 14279-14280 14282-14283 14286-14287 14289 14291-14294 14316-14317 14325 14330 14333-14334 15387-15388 15390-15391 15409 15432 15434-15438 15440 15442-15444 15446 15448-15449 15451 15456-15458 15476 15478 15481 15484 15486 15616 15619 15621-15624 15626-15627 15629 15631-15632 15634-15637 15639 15642-15643 15645-15646 15649 15652 15668 15670-15671 15676-15677 15684 15686 15690-15691 15693 15696-15697 15701 20816 20821 20826-20827 20829 20831 20849 21504 21507 21510 21514-21515 21517-21519 21523 21529-21530 21537-21538 21540-21542 21544 21547-21548 21550 21552 21632 21637 21641 21643 21648 21650 21660-21661 21667 21669 21671 21676-21677 21679-21682 21684 21688-21689 22023 22029 22038-22041 22043 22070 22076 22078 22080 22083 22088 22121-22122 22124 22126 22161 22165 22167 22212-22213 22216-22218 22220-22221 22226 22235 22240-22241 22243 22249 22252-22254 22257-22259 22264 23622 23632 23641 23644-23646 23664-23666 23668-23669 23671 23674 23769 23795 23797-23798 23805 23807 23817-23818 23936 23938 23945-23946 23949 23968-23969 23972 23974 23976-23977 23979-23980 23982-23983 23994-23996 23998-23999 24183 24320 24323 24325 24328 24339-24340 24354-24356 24361 24363 24365-24366 24368 24370-24371 24376 24378-24379 24382 24430 24449 24455 24460-24461 24464 24472 24475-24476 24478 24487 24493 24496-24497 24499 24501-24502 24505 24507-24509 24511 24513 24515 24544 24546 37239 37241 37330-37331 37333-37335 37339 37359 37361-37363 37372 37374-37375 37701 37711-37713 37715-37716 37718-37719 37721-37723 37725 37733 37735 37742 37748 37750 37752 37759 37821-37822 37829-37830 37835-37837 37839 37844-37846 37852 37855 37860 37862-37864 37872 37874-37877 37882-37884 37886-37887 37889-37890 37910 37913 37915 37932 37934-37935 37937-37938 37944-37945 37956 38020-38022 38028 38031 38048 38050-38051 38059 38410 38433 38538 39236-39237 39241 39244 39246-39247 39252-39254 39256 39258-39259 39261 39263 39267 39273 39276 39278-39279 39290-39291 39361 39363 39366 39368 39371 39373 39375-39376 39383-39384 39386 39390 39393 39395-39398 39404 39406-39407 39414 39418 39751 39761-39762 39767-39768 39774 39791 39793-39796 39798 39801 39803-39805 39889 39895 39905 39909-39910 39916 39922-39924 39926 39929-39930 40491 40609 40618-40619 40621 41469 41471 41593-41595 41630 41643 41646-41647 41650-41651 41664 41667 41670-41671 41673-41675 41692 41702 41704 41706 41712 41733 41745 41750 41754 41756 41758-41759 41765-41767 41772-41773 41775 41784 41787 41789 41794 41798-41799 41809-41811 41816-41817 41819-41820 41824-41825 41831 41856 41858 42152 42154-42155 42500 42502 42505 43009 43011 43013-43015 43017-43019 43028 43040-43042 43044 43049-43050 43052 43136https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/279/55?format=asciiInfrareddefaultJ/ApJS/279/55/table3MIPAPS catalog of Pa{alpha} emission-line sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMIPAPSMIPAPS name (GLLL.ll+BB.bb) (1)meta.id;meta.maincharRad1[64/12000]? Radius1 of source extent (2)arcsecphys.angSize;srcintnullableRad2[200/5500]? Radius2 of source extent (2)arcsecphys.angSize;srcintnullablePA[0/165]? Position angle of source extent (2)degpos.posAngintnullableIDSource identifier (3)meta.idcharn_ID[p] p: Information for 78 MIPAPS Pa{alpha} sources are available in Table 8meta.notecharWISEWISE HII region source's name (GLLL.lll+BB.bbb) from Anderson+ 2014, J/ApJS/212/1meta.id.crosscharHaDetWhether H{alpha} line was detected (4)meta.codecharSIMBADSIMBAD matching object (5)meta.id.assoccharPaFlux[0.04/1590]? The Pa{alpha} flux (6)1e-14W.m**-2phot.flux.density;em.IR.Hfloatnullablee_PaFlux[0.01/2.2]? The 1{sigma} uncertainty on PaFlux1e-14W.m**-2stat.errorfloatnullableHaFlux[0.01/6582]? The H{alpha} flux (6)1e-14W.m**-2phot.flux;em.line.Halphafloatnullablee_HaFlux[0/4.3]? The 1{sigma} uncertainty on HaFlux1e-14W.m**-2stat.errorfloatnullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedE(B-V)[0.37/3.7]? The E(B-V) color excess (7)magphot.color.excessfloatnullablee_E(B-V)[0/0.3]? The 1{sigma} uncertainty on E (B-V)magstat.errorfloatnullable_GlonPositions from MIPAPS names (longitude part)degpos.galactic.lon_GlatPositions from MIPAPS names (latitude part)degpos.galactic.latJ/ApJS/279/55/table4WISE HII region sources with No MIPAPS Pa{alpha} detection_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWISEWISE H II region source's name (GLLL.lll+BB.bbb) from Anderson+ 2014, J/ApJS/212/1meta.id;meta.maincharBSrcWhether overlapped with other bright sources (1)meta.codecharResWhether, and to what extent, overlapped with stellar residuals (2)meta.codecharHaDetWhether H{alpha} line was detected (3)meta.codechar_GlonPositions from WISE names (longitude part)degpos.galactic.lon_GlatPositions from WISE names (latitude part)degpos.galactic.lat