J/ApJ/922/8ivo://CDS.VizieR/J/ApJ/922/8doi:10.26093/cds/vizier.19220008CDSYan Q.-Z.Yang JiSu Y.Sun Y.Xu YeWang H.Zhou X.Wang C.2023-08-25T11:05:55Z2023-04-11T16:54:37ZCDS support team

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

cds-question@unistra.frmolecular-cloudsinterstellar-mediumco-line-emissionextinctionstellar-distanceThe principle of the background-eliminated extinction-parallax (BEEP) method is examining the extinction difference between on- and off-cloud regions to reveal the extinction jump caused by molecular clouds, thereby revealing the distance in complex dust environments. The BEEP method requires high-quality images of molecular clouds and high-precision stellar parallaxes and extinction data, which can be provided by the Milky Way Imaging Scroll Painting (MWISP) CO survey and the Gaia DR2 catalog, as well as supplementary AV extinction data. In this work, the BEEP method is further improved (BEEP-II) to measure molecular cloud distances in a global search manner. Applying the BEEP-II method to three regions mapped by the MWISP CO survey, we collectively measured 238 distances for 234 molecular clouds. Compared with previous BEEP results, the BEEP-II method measures distances efficiently, particularly for those molecular clouds with large angular size or in complicated environments, making it suitable for distance measurements of molecular clouds in large samples.2021ApJ...922....8Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/922/8CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)I/349 : StarHorse, Gaia DR2 photo-astrometric distances (Anders+, 2019)II/360 : Gaia DR2 x AllWISE catalogue (Marton+, 2019)J/ApJ/834/57 : MW molecular clouds from ^12^CO (Miville-Deschenes+, 2017)J/ApJ/867/151 : YSOs in Gould Belt regions with Gaia-DR2 data (Dzib+, 2018)J/A+A/620/A172 : Solar neighbourhood young stars 3D mapping (Zari+, 2018)J/MNRAS/483/4291 : Properties of JCMT CO(3-2) molecular clouds (Colombo+, 2019)J/ApJ/885/131 : High-mass SFR plx & proper motion with VLBI (Reid+, 2019)J/A+A/638/A85 : Taurus 3D view with Gaia & Herschel (Roccatagliata+, 2020)J/A+A/633/A51 : Distances to molecular clouds in SFR (Zucker+, 2020)J/ApJ/910/131 : Molecular gas distribution from MWISP CO survey (Su+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/922/8https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/922/8http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/922/8https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/922/8https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/922/8http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/922/8GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/922/8/table3 (Distances to molecular clouds)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/922/8/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/922/8/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/922/8/table3?GETtext/xml+votable180.050000true283.3053556539-6.98087768020.0055555555555555566/1775 1778 1785 1788 1963 2939 3002 3005 3027-3029 3031-3034 3037 3039 3041-3042 3044-3045 3056-3057 3059 3061 3066 3141-3142 3147-3149 3153 3156 3163 3169 3171-3172 3175 3177-3178 3181 3189 3193 3197 3229-3230 3254 3257-3260 3263 3268 3273-3274 3278-3279 3285 3292 3294 3297 3302 3306 3310-3311 3314 3322 3338 3340 3588 3595 3599 3601 3603 3606 3611-3612 3615 3621 3626 3633 3635-3637 3639 3650 3654 3656 3712 3718-3719 3723 3725-3726 3752 14191 14203 14262-14263 14267 14270-14271 14286 14290 14298-14299 14301-14302 14304-14306 14309-14313 14320-14322 14325 14334-14335 15636 15638 15641 15644-15645 15669 15681 15686-15689 15692 15700 21691 22028-22029 22033-22034 22038-22040 22042-22043 22045 22047 22061 22067 22069-22071 22073 22075 22077 22088 22090-22091 22094-22095 22106 22115 22117 22120 22137-22138 22161-22162 22165-22167 22172-22173 22209-22212 22214-22216 30213 30232-30233 30305 30310 30327 30335 30450 30504 30521 30526-30527 30571 30596-30597 30613 30625 30628 30637-30638 30648 30650 30653 30659 30661https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/922/8?format=asciiRadiodefaultJ/ApJ/922/8/table3Distances to molecular cloudsExtGaia DR2 extinction (A_V_ or A_G_) (AVAG)phys.absorptionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCloud name (GLLL.l+BB.b) (cloudName)meta.id;meta.maincharGLON[26.9/219.7] Galactic longitude (l)degpos.galactic.lonGLAT[-4.9/4.7] Galactic latitude (b)degpos.galactic.latVlsr[-47/34.5] LSR velocitykm.s**-1spect.dopplerVeloc;pos.lsrdoubleArea[0.016/17] Angular areadeg**2phys.angAreafloatDist[278/2624] Gaia DR2 distance (distance)pcpos.distance;pos.heliocentricinte_Dist[8/266] Dist uncertainty (distanceError) (1)pcstat.errorintGLONC[26.5/219.7] Region center Galactic longitude (centerL) (2)degpos.galactic.lonGLATC[-5.1/4.7] Region center Galactic latitude (centerB) (2)degpos.galactic.latdoubleRad[5/15] Radius (radius)degphys.angSizeintCOcut[2/5] CO cut (3)K.km.s**-1phot.flux.density;em.line.COintDCut[500/3000] Distance cut (distanceCut)pcpos.distanceintN[13/1179] Total number of on-cloud starsmeta.numberintMass[48.7/775427]? Mass (4)solMassphys.massdoublenullablee_Mass[12.9/89209]? Mass uncertainty (massError)solMassstat.error;phys.massdoublenullable_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.decindexed