J/MNRAS/459/342ivo://CDS.VizieR/J/MNRAS/459/342doi:10.26093/cds/vizier.74590342CDSMarsh K.A.Kirk J.M.Andre P.Griffin M.J.Konyves V.Palmeirim P.,Men'shchikov A.Ward-thompson D.Benedettini M.Bresnahan D.W.,Di Francesco J.Elia D.Motte F.Peretto N.Pezzuto S.Roy A.,Sadavoy S.Schneider N.Spinoglio L.White G.J.2024-08-16T20:16:55Z2017-04-07T07:47:32ZCDS support team

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

cds-question@unistra.frmolecular-cloudsmillimeter-astronomyphotometrysubmillimeter-astronomygalaxy-classification-systemsWe present a catalogue of dense cores in a ~4{deg}x2{deg} field of the Taurus star-forming region, inclusive of the L1495 cloud, derived from Herschel SPIRE and PACS observations in the 70{mu}m, 160{mu}m, 250{mu}m, 350{mu}m, and 500{mu}m continuum bands. Estimates of mean dust temperature and total mass are derived using modified blackbody fits to the spectral energy distributions. We detect 525 starless cores of which ~10-20 per cent are gravitationally bound and therefore presumably prestellar. Our census of unbound objects is ~85 per cent complete for M>0.015M_{sun}_ in low-density regions (A_V_<~5mag), while the bound (prestellar) subset is ~85 per cent complete for M>0.1M_{sun}_ overall. The prestellar core mass function (CMF) is consistent with lognormal form, resembling the stellar system initial mass function, as has been reported previously. All of the inferred prestellar cores lie on filamentary structures whose column densities exceed the expected threshold for filamentary collapse, in agreement with previous reports. Unlike the prestellar CMF, the unbound starless CMF is not lognormal, but instead is consistent with a power-law form below 0.3M_{sun}_ and shows no evidence for a low-mass turnover. It resembles previously reported mass distributions for CO clumps at low masses (M<~0.3M_{sun}_). The volume density PDF, however, is accurately lognormal except at high densities. It is consistent with the effects of self-gravity on magnetized supersonic turbulence. The only significant deviation from lognormality is a high-density tail which can be attributed unambiguously to prestellar cores.2016MNRAS.459..342Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/459/342CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://gouldbelt-herschel.cea.fr/ : Herschel Gould Belt Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/459/342https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/459/342http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/459/342https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/459/342https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/459/342http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/459/342GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/459/342/tableb1 (TAURUS-L1495 observed core catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/459/342/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/459/342/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/459/342/tableb1?GETtext/xml+votable180.050000true62.350416728.78972220.005555555555555556Cone search capability for table J/MNRAS/459/342/tableb2 (TAURUS-L1495 derived core catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/459/342/tableb2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/459/342/tableb2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/459/342/tableb2?GETtext/xml+votable180.050000true62.350416728.78972220.0055555555555555565/270 292 6/1071 1157 1159 1165 1176-11773.972892068905477e-22 2.837779945223663e-21https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/459/342?format=asciiOpticalMillimeterdefaultJ/MNRAS/459/342/tableb1TAURUS-L1495 observed core catalogSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/536] Source number (Source_number)meta.id;meta.mainintNameSource name (Source_name)meta.idcharRAJ2000Right ascension (J2000) (RA_2000_h)pos.eq.ra;meta.mainDEJ2000Declination (J2000) (DEC_2000_d)pos.eq.dec;meta.mainsig70Detection significance at 70um (Sig_70)stat.likelihood;obsfloatI70peakEstimate of the peak intensity at 70um ((I_70)peak)Jy/beamphot.flux.density;em.IR.30-60umdoublee_I70peakError in the estimate of the peak intensity (e_(I_70)peak)Jy/beamstat.errordoubleC70Contrast over the local background at 70um ((I_70)peak/Ibg)instr.backgroundfloatI70convPeak intensity at 70um after smoothing to a resolution corresponding to the 500um ((I_70)conv500)Jy/beamphot.flux.density;em.IR.30-60umdoubleS70Estimate of the total flux at 70um (S_70)Jyphot.flux.density;em.IR.30-60umdoublee_S70Error in estimate of the total flux at 70um (e_S_70)Jystat.errordoublea70Estimate of size along major axis at 70um (a_70)arcsecphys.angSize;srcintb70Estimate of size along minor axis at 70um (b_70)arcsecphys.angSize;srcintPA70Position angle of source major axis at 70um (E to N) (PA_70)degpos.posAngintsig160Detection significance at 160um (Sig_160)stat.likelihood;obsfloatI160peakEstimate of the peak intensity at 160um ((I_160)peak)Jy/beamphot.flux.density;em.mm.1500-3000GHzdoublee_I160peakError in the estimate of the peak intensity at 160um (e_(I_160)peak)Jy/beamstat.errorfloatC160Contrast of the peak intensity at 160um over the local background ((I_160)peak/Ibg)instr.backgroundfloatI160convPeak intensity at 160um after smoothing to a resolution corresponding to the 500um ((I_160)conv500)Jy/beamphot.flux.density;em.mm.1500-3000GHzdoubleS160Estimate of the total flux at 160um (S_160)Jyphot.flux.density;em.mm.1500-3000GHzdoublee_S160Error in estimate of the total flux at 160um (e_S_160)Jystat.errorfloata160Estimate of size along major axis at 160um (a_160)arcsecphys.angSize;srcintb160Estimate of size along minor axis at 160um (b_160)arcsecphys.angSize;srcintPA160Position angle of source major axis at 160um (E to N) (PA_160)degpos.posAngintsig250Detection significance at 250um (Sig_250)stat.likelihood;obsfloatI250peakEstimate of the peak intensity at 250um ((I_250)peak)Jy/beamphot.flux.density;em.mm.750-1500GHzfloate_I250peakError in the estimate of the peak intensity at 250um (e_(I_250)peak)Jy/beamstat.errordoubleC250Contrast over the local background at 250um ((I_250)peak/Ibg)instr.backgroundfloatI250convPeak intensity at 250um after smoothing to a resolution corresponding to the 500um ((I_250)conv500)Jy/beamphot.flux.density;em.mm.750-1500GHzfloatS250Estimate of the total flux at 250um (S_250)Jyphot.flux.density;em.mm.750-1500GHzfloate_S250Error in estimate of the total flux at 250um (e_S_250)Jystat.errordoublea250Estimate of size along major axis at 250um (a_250)arcsecphys.angSize;srcintb250Estimate of size along minor axis at 250um (b_250)arcsecphys.angSize;srcintPA250Position angle of source major axis at 250um (E to N) (PA_250)degpos.posAngintsig350Detection significance at 350um (Sig_350)stat.likelihood;obsfloatI350peakEstimate of the peak intensity at 350um ((I_350)peak)Jy/beamphot.flux.density;em.mm.750-1500GHzfloate_I350peakError in the estimate of the peak intensity at 350um (e_(I_350)peak)Jy/beamstat.errordoubleC350Contrast over the local background at 350um ((I_350)peak/Ibg)instr.backgroundfloatI350convPeak intensity at 350um after smoothing to a resolution corresponding to the 500um ((I_350)conv500)Jy/beamphot.flux.density;em.mm.750-1500GHzfloatS350Estimate of the total flux at 350um (S_350)Jyphot.flux.density;em.mm.750-1500GHzfloate_S350Error in estimate of the total flux at 350um (e_S_350)Jystat.errordoublea350Estimate of size along major axis at 350um (a_350)arcsecphys.angSize;srcintb350Estimate of size along minor axis at 350um (b_350)arcsecphys.angSize;srcintPA350Position angle of source major axis at 350um (E to N) (PA_350)degpos.posAngintsig500Detection significance at 500um (Sig_500)stat.likelihood;obsfloatI500peakEstimate of the peak intensity at 500um ((I_500)peak)Jy/beamphot.flux.density;em.mm.400-750GHzfloate_I500peakError in the estimate of the peak intensity at 500um (e_(I_5000)peak)Jy/beamstat.errordoubleC500Contrast over the local background at 500um ((I_500)peak/Ibg)instr.backgroundfloatS500Estimate of the total flux at 500um (S_500)Jyphot.flux.density;em.mm.400-750GHzdoublee_S500Error in estimate of the total flux at 500um (e_S_500)Jystat.errordoublea500Estimate of size along major axis at 500um (a_500)arcsecphys.angSize;srcintb500Estimate of size along minor axis at 500um (b_500)arcsecphys.angSize;srcintPA500Position angle of source major axis at 500um (E to N) (PA_500)degpos.posAngintsigNH2Detection significance from single scales on high-res column density map (Sig(N_H2))stat.likelihood;obsfloatNH2peakPeak column density at 18.2" resolution, estimated by getsources ((N_H2)peak)1e+21cm**-2phys.columnDensity;stat.maxfloatCNH2Contrast of peak column density over the local background ((N_H2)peak/(N_H2)bg)instr.backgroundfloatNH2convPeak column density after smoothing to a resolution corresponding to the 500um ((N_H2)conv500)1e+21cm**-2pos.angResolution;stat.maxfloatNH2bgColumn density of local background ((N_H2)bg)1e+21cm**-2phys.columnDensityfloataNH2Estimate of source size along major axis in column density map (a_(N_H2))arcsecphys.angSize;srcintbNH2Estimate of source size along minor axis in column density map (b_(N_H2))arcsecphys.angSize;srcintPANH2Position angle of source major axis in column density map (PA_(N_H2))degpos.posAngintNsedNumber of bands in which the source is significant (Sig_lambda > 5) (N_SED)meta.numberintCflag[0/2] CSAR flag (CSAR_flag) (1)instr.backgroundintCType[1/4] Core type (Core_type) (G1)instr.backgroundintSimbadSimbad ID of nearest match if within 1 arcmin of Herschel position (SIMBAD_assoc)meta.idcharComCommentsinstr.backgroundcharJ/MNRAS/459/342/tableb2TAURUS-L1495 derived core catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/536] Source number (Source_number)meta.id;meta.mainintNameSource name (Source_name)meta.idcharRAJ2000Right ascension (J2000) (RA_2000_h)pos.eq.ra;meta.mainDEJ2000Declination (J2000) (DEC_2000_d)pos.eq.dec;meta.mainRadCore radius as observed (radius)pcphys.size.radiusfloatRadBeamCore radius with 18.2 arcsec beam (radius_beam)phys.angSize;srcfloatMcoreCore mass (Core_mass)solMassphys.massfloate_McoreUncertainty in core mass (e_Core_mass)solMassstat.errorfloatTdustDust temperature (Dust_T)Kphys.temperaturefloate_TdustUncertainty in dust temperature (e_Dust_T)Kstat.errorfloatNH2peakPeak H2 column density at 500um ((N_H2)peak)1e+21cm**-2phys.columnDensity;stat.maxfloat<NH2>oAverage column density observed (Ave_column_a)1e+21cm**-2phys.columnDensity;stat.meanfloat<NH2>dAverage column density deconvolved (Ave_column_b)1e+21cm**-2phys.columnDensity;stat.meanfloatnH2peakBeam-averaged peak volume density ((n_H2)peak)10000cm**-3phys.densityfloat<nH2>oAverage volume density observed (Ave_volume_a)10000cm**-3phys.densityfloat<nH2>dAverage volume density deconvolved (Ave_volume_b)10000cm**-3phys.densityfloatMratioBonnor-Ebert mass ratio (Bonnor-Ebert)phys.mass;arith.ratiofloatCType[1/4] Core type (Core_type) (G1)meta.noteintComCommentsmeta.notechar