Atlas and catalog of dark clouds based on 2MASS J/PASJ/63/S1 ivo://CDS.VizieR/J/PASJ/63/S1 doi:10.26093/cds/vizier/bj-1z/3b CDS Dobashi K. 2026-03-17T20:05:14Z 2011-09-05T15:33:51Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr molecular-clouds extinction interstellar-medium infrared-sources This paper presents an atlas and catalog of dark clouds derived based on the 2 Micron All Sky Survey Point Source Catalog (2MASS PSC). Color excess maps of E(J-H) and E(H-K_S_) as well as extinction maps of A_J_, A_H_, and A_K_S_ covering all of the sky have been produced at the 1' grid with a changing angular resolution (~1'-12'), depending on the regions in the sky. Maps drawn at the lower 15' grid with a fixed 1{deg} resolution were also derived for various sets of threshold magnitudes in the J, H, and K_S_ bands to estimate the background star colors and star densities needed to derive the color excess and extinction maps. The maps obtained in this work are presented on various scales in a series of figures that can be used as an atlas of dark clouds for general research purposes. On the basis of the E(J-H) and A_J_ maps drawn at the 1' grid, we have carried out a systematic survey for dark clouds all over the sky. In total, we identified 7614 dark clouds, and measured the coordinates, extents, and A_V_ values for each of them. We also searched for their counterparts in a previously published catalog of dark clouds based on the optical photographic plates DSS (Dobashi et al., 2005PASJ...57S...1D, Cat. VII/244). These cloud parameters, including the information of the counterparts, are compiled into a new catalog of dark clouds. 2011PASJ...63S...1D https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASJ/63/S1 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) VII/244 : Atlas and Catalog of Dark Clouds (Dobashi+, 2005) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASJ/63/S1 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASJ/63/S1 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASJ/63/S1 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASJ/63/S1 https://vizier.iucaa.in/viz-bin/votable?-source=J/PASJ/63/S1 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASJ/63/S1 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/PASJ/63/S1/table8 (Catalog of dark clouds) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASJ/63/S1/table8? https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/63/S1/table8? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/63/S1/table8? 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42186-42187 42189-42191 42194 42198-42199 42201-42203 42208 42210-42211 42216-42217 42219 42222-42223 42228 42231 42233-42234 42236 42238 42279 42286 42299 42316-42317 42339 42343 42345-42348 42350-42351 42354-42355 42358 42360-42361 42363-42364 42366 42372-42374 42376-42378 42392-42393 42395 42400 42403 42406-42410 42412-42413 42417 42420 42422 42424 42432-42434 42437-42442 42465-42469 42471-42473 42476-42477 42479 42481 42483 42492-42493 42501 42505-42507 42516 42518 42520 42547 42552 42560-42561 42563 42568 42572-42573 42581-42583 42586 42589 42593 42595 42608 42610-42611 42616-42617 42619 42621 42647 42704-42705 42714 42727 42736-42738 42744 42754-42755 42760-42761 42763 42774-42775 42777 42909 42911 42958 42966-42970 42972 42974-42975 42988-42989 42992-42994 42997 43000 43006-43007 43010-43011 43016-43017 43019 43021-43022 43024-43026 43028 43042 43052 43055 43066 43072 43086 43325 43444 44053 44100 44102 44133 44371-44374 44377 44379 45189 45191 45208 47735 47741-47743 47825 47828 47906-47907 48874-48875 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PASJ/63/S1?format=ascii Infrared default J/PASJ/63/S1/table8 Catalog of dark clouds recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Seq [1/7614] Sequential number meta.record int GLON Galactic longitude of cloud peak position pos.galactic.lon GLAT Galactic latitude of cloud peak position pos.galactic.lat Area Surface area arcmin**2 phys.angSize float AV Core absorption in V-band at the peak position mag phys.absorption float e_AV rms uncertainty on AV mag stat.error float IAVds Core absorption integrated over the cloud surface mag.arcmin**2 phot.mag.sb;em.opt.V double e_IAVds rms uncertainty on IAVds mag.arcmin**2 stat.error float Q [A-C] Rank of reliability in detection (A=best) (1) meta.code.qual char Flag Notes about cloud (2) meta.code.error char TGU Cloud numbers in the catalog by Dobashi et al. (2005, Cat. VII/244 ) (3) meta.id char Simbad Simbad column added by the CDS meta.ref.url char _RA.icrs Right ascension (ICRS) (computed by VizieR, not part of the original data) pos.eq.ra nullable indexed _DE.icrs Declination (ICRS) (computed by VizieR, not part of the original data) pos.eq.dec nullable indexed