J/ApJ/805/157ivo://CDS.VizieR/J/ApJ/805/157doi:10.26093/cds/vizier.18050157CDSEllsworth-Bowers T.P.Glenn J.Riley A.Rosolowsky E.Ginsburg A.,Evans II N.J.Bally J.Battersby C.Shirley Y.L.Merello M.2018-05-14T05:36:43Z2015-10-20T11:20:54ZCDS support team

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

cds-question@unistra.frmolecular-cloudsmillimeter-astronomysubmillimeter-astronomyWe use the distance probability density function (DPDF) formalism of Ellsworth-Bowers et al. (2015, J/ApJ/799/29) to derive physical properties for the collection of 1710 Bolocam Galactic Plane Survey (BGPS) version 2 sources with well-constrained distance estimates. To account for Malmquist bias, we estimate that the present sample of BGPS sources is 90% complete above 400M_{sun}_ and 50% complete above 70M_{sun}_. The mass distributions for the entire sample and astrophysically motivated subsets are generally fitted well by a lognormal function, with approximately power-law distributions at high mass. Power-law behavior emerges more clearly when the sample population is narrowed in heliocentric distance (power-law index {alpha}=2.0+/-0.1 for sources nearer than 6.5kpc and {alpha}=1.9+/0.1 for objects between 2 and 10 kpc). The high-mass power-law indices are generally 1.85<={alpha}<=2.05 for various subsamples of sources, intermediate between that of giant molecular clouds and the stellar initial mass function. The fit to the entire sample yields a high-mass power-law {alpha}^\^^=1.94_-0.10_^+0.34^. Physical properties of BGPS sources are consistent with large molecular cloud clumps or small molecular clouds, but the fractal nature of the dense interstellar medium makes it difficult to map observational categories to the dominant physical processes driving the observed structure. The face-on map of the Galactic disk's mass surface density based on BGPS dense molecular cloud structures reveals the high-mass star-forming regions W43, W49, and W51 to be prominent mass concentrations in the first quadrant. Furthermore, we present a 0.25kpc resolution map of the dense gas mass fraction across the Galactic disk that peaks around 5%.2015ApJ...805..157Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/805/157CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/39 : Composite CO Survey of the Milky Way (Dame+ 1987)VIII/64 : Westerhout's Catalogue of 82 Discrete Sources (Westerhout 1958)J/ApJS/218/1 : BGPS. XI. SHARC-II 350um observations (Merello+, 2015)J/ApJ/799/29 : BGPS. XII. DR2 distance catalog (Ellsworth-Bowers+, 2015)J/ApJ/780/173 : Masses of giant molecular clouds in MW (Battisti+, 2014)J/A+A/561/A148 : Mass Distribution of Infrared Dark Clouds (Gomez+, 2014)J/ApJS/209/2 : The BGPS. X. Dense molecular gas (Shirley+, 2013)J/ApJ/770/39 : BGPS. VIII. MIR kinematic distances (Ellsworth-Bowers+, 2013)J/MNRAS/422/3178 : Distances of 793 BGPS sources (Eden+, 2012)J/ApJ/741/110 : The BGPS. VII. Massive star-forming regions (Dunham+, 2011)J/ApJS/195/14 : The Bolocam Galactic Plane Survey. V. (Schlingman+, 2011)J/A+A/526/A151 : Hi-Gal sources distance determination (Russeil+, 2011)J/ApJ/723/492 : Physical data of GRS molecular clouds (Roman-Duval+, 2010)J/ApJS/188/123 : The Bolocam Galactic Plane Survey. II. (Rosolowsky+, 2010)J/ApJ/707/1824 : BLAST Vela sources (Netterfield+, 2009)J/ApJ/699/1092 : Giant molecular clouds (SRBY) (Heyer+, 2009)J/ApJS/175/509 : Ammonia spectral atlas in Perseus (Rosolowsky+, 2008)J/A+A/476/1243 : Millimeter continuum mapping of Cygnus X (Motte+, 2007)J/ApJ/638/293 : 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)J/A+A/291/943 : Protostellar cores (Ossenkopf+, 1994)http://irsa.ipac.caltech.edu/data/BOLOCAM_GPS/ : Bolocam GPS archive on IRSAhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/805/157https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/805/157http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/805/157https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/805/157https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/805/157http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/805/157GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/805/157/table1 (Physical properties of BGPS distance catalog sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/805/157/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/805/157/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/805/157/table1?GETtext/xml+votable180.050000true271.13992-22.172340.0055555555555555565/3577 7278 7376 7377 7383 7564 7578 7605 7651 7679 6/3290 3301 3302 3303 3304 3309 3310 3312 3315 3648 3649 3650 12970 12971 12974 14307 14313 14315 14316 14317 14337 14341 14352 14353 14355 14403 14409 14603 14618 14621 14622 14644 14667 14671 14682 14688 14689 14691 14692 14693 14704 15368 23969 23980 23982 23983 24324 24325 28918 28919 29090 29091 29094 29096 29097 29100 29101 29103 29116 29118 29119 29162 29457 29460 29461 29522 29523 29528 29529 29531 30216 30218 30219 30222 30223 30240 30241 30244 30245 30247 30260 30262 30263 30268 30269 30306 30316 30318 30319 30330 30405 30416 30417 30419 30594 30595 30600 30601 30616 30618 30619 30622 30623 30641 30644 30645 30688 30691 30692 30694 30695 30701 30706 307121.8058623843283312e-22 1.8058623843283312e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/805/157?format=asciiRadiodefaultJ/ApJ/805/157/table1Physical properties of BGPS distance catalog sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2235/8225] Bolocat V2.1 catalog number (as in Ellsworth-Bowers, 2015, J/ApJ/799/29)meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latFlux[0.06/200.4] Integrated 1.1mm BGPS flux density (1)Jyphot.flux.density;em.mm.200-400GHzfloate_Flux[0.03/12.2] Standard error on FluxJystat.error;phot.fluxfloatTheta? Deconvolved angular radius (2)arcsecpos.posAngfloatnullableDist[0.5/16.5] Heliocentric Distance (3)kpcpos.distancefloate_Dist[0.02/1.4] Lower error in Distkpcstat.errorfloatE_Dist[0.02/2] Upper error in Distkpcstat.error;stat.maxfloatMass[0.2/5] Mass (log10)log(solMass)phys.massfloate_Mass[0.1/0.9] Lower error in Masslog(solMass)stat.error;phys.massfloatE_Mass[0.1/1.1] Upper error in Masslog(solMass)stat.error;stat.maxfloatRad[0.05/7.5]? Physical radiuspcphys.size.radiusfloatnullablee_Rad[0/1.1]? Lower error in Radpcstat.errorfloatnullableE_Rad[0/0.6]? Upper error in Radpcstat.error;stat.maxfloatnullableDens[2/6]? Number density (log10)log(cm**-3)meta.number;phys.densityfloatnullablee_Dens[0.1/0.4]? Lower error in Denslog(cm**-3)stat.errorfloatnullableE_Dens[0.1/0.5]? Upper error in Denslog(cm**-3)stat.error;stat.maxfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed