J/ApJS/259/36ivo://CDS.VizieR/J/ApJS/259/36doi:10.26093/cds/vizier.22590036CDSGe Y.Wang K.2022-08-26T06:38:05Z2022-06-29T08:16:29ZCDS support team

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

cds-question@unistra.frmolecular-cloudsgalaxy-planesmilky-way-galaxyinterstellar-mediumThe interstellar medium has a highly filamentary and hierarchical structure that may play a significant role in star formation. A systematical study of the large-scale filaments toward their physical parameters, distribution, structures, and kinematics will inform us about which types of filaments have the potential to form stars, how the material feeds protostars through filaments, and the connection between star formation and Galactic spiral arms. Unlike the traditional by-eye searches, we use a customized minimum spanning tree algorithm to identify filaments by linking Galactic clumps from the APEX Telescope Large Area Survey of the Galaxy catalog. In the inner Galactic plane (|l|<60{deg}), we identify 163 large-scale filaments with physical properties derived, including the dense-gas mass fraction, and we compare them with an updated spiral arm model in position-position-velocity space. The dense-gas mass fraction is found not to differ significantly in various Galactic positions or in different spiral arms. We also find that most filaments are interarm filaments after adding a distance constraint, and filaments in arms differ a little with those not in arms. One surprising result is that clumps on and off filaments have no significant distinction in their mass at the same size.2022ApJS..259...36Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/259/36CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/184/18 : Spitzer survey of young stellar clusters (Gutermuth+, 2009)J/ApJ/723/1019 : Galactic SFR and gas surface densities (Heiderman+, 2010)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/A+A/554/A55 : C^18^O(1-0) and N_2_H^+^(1-0) in L1495/B213 (Hacar+, 2013)J/ApJS/209/2 : The BGPS. X. Dense molecular gas (Shirley+, 2013)J/A+A/568/A41 : ATLASGAL Compact Source Catalog: 280<l<60 (Urquhart+, 2014)J/ApJ/805/157 : BGPS. XIII. Mass functions (Ellsworth-Bowers+, 2015)J/A+A/590/A131 : Giant molecular filaments in the MW (Abreu-Vicente+, 2016)J/A+A/591/A5 : ATLASGAL dense filamentary structures (Li+, 2016)J/A+A/600/A141 : Orion A integral shaped filament image (Kainulainen+, 2017)J/MNRAS/477/298 : Young star clusters in nearby mol. clouds (Getman+, 2018)J/A+A/610/A77 : Orion Integral Filament ALMA+IRAM N2H+(1-0) (Hacar+, 2018)J/A+A/619/A166 : SEDIGISM, kinematics of ATLASGAL filaments (Mattern+, 2018)J/MNRAS/473/1059 : Complete sample of Gal. clump properties (Urquhart+, 2018)J/ApJ/885/131 : High-mass SFR plx & proper motion with VLBI (Reid+, 2019)J/ApJ/886/102 : ALMA obs. of 70um dark high-mass clumps (Sanhueza+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/259/36https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/259/36http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/259/36https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/259/36https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/259/36http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/259/36GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/259/36/table1 (Physical properties of the identified 163 filaments and parameter statistics)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/259/36/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/259/36/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/259/36/table1?GETtext/xml+votable180.050000true269.3489-24.25310.0055555555555555565/7278 6/1836 14353 23641 28808 28810 28827 28832 28839 28890 28901 28912 28917-28919 29090-29091 29097 29101 29118-29119 29461 29505 29508 29510 29522 29529 29532-29533 29535 30216 30218-30219 30222 30241 30256 30258 30262 30268 30312-30313 30315 30318-30319 30601 30618 30691 30694 30716 30719 41655 41676-41677 41683 41759 41767 41770 41772 41780 41782 41804 41812-41814 41817 41820 41824 42159 42170-42173 42207 42211 42214-42217 42224-42226 42230 42376 42378-42379 42381-42383 42387 42390-42392 42396 42398 42435 42439 42441 42444-42445 42449-42450 42455-42457 42460-42462https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/259/36?format=asciidefaultJ/ApJS/259/36/table1Physical properties of the identified 163 filaments and parameter statisticsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjRow type (1)meta.codecharID[1/163]? Assigned filament IDmeta.id;meta.mainintnullableGLON[-1.9/354.64] Flux-weighted Galactic longitude, l_wt_degpos.galactic.lone_GLON[0.01/0.4]? Uncertainty in GLONdegstat.errorfloatnullableGLAT[-1.3/2.2] Flux-weighted Galactic latitude, b_wt_degpos.galactic.late_GLAT[0.01/0.2]? Uncertainty in GLATdegstat.errorfloatnullableVLSR[-121/114] Flux weighted local standard of rest (LSR) velocity, v_wt_km/sphys.veloc;pos.lsrfloate_VLSR[0.2/5]? Uncertainty in VLSRkm/sstat.error;phys.veloc;pos.lsrfloatnullableDist[1.3/19.7] Distance, the median of all clump distances in this filamentkpcpos.distancefloatNcl[5/169] The number of clumps in the filamentmeta.numberintLsum[4.4/370.2] Sum of "edges" (separation of each two connected clumps) of filamentpcpos.distancefloatLend[2.3/109.4] End-to-end length along the major axispcpos.distance;phys.sizefloatVgrad[0.06/1.75] Mean velocity gradient on edgeskm.s**-1.pc**-1arith.grad;phys.veloc;stat.meanfloate_Vgrad[0.01/2.71]? Uncertainty in Vgradkm.s**-1.pc**-1stat.errorfloatnullableTmin[-0.5/22.1] Minimum temperature of clumpsKphys.temperature;stat.minfloatTmax[0.8/53.0] Maximum temperature of clumpsKphys.temperature;stat.maxfloatMass[1.7/525.0] Mass of the filament (2)1000solMassphys.massfloatMline[2.1/7324.3] Line mass, mass per unit lengthsolMass/pcphys.mass;phys.sizefloatNH2[0.7/6.5] H2 column density1e+22cm**2phys.columnDensityfloatnH2[0.6/21.4] H2 volume density1000cm**3meta.bib.volumefloatLsumw[2.9/133.4] Ratio between sum of edge lengths and width (3)phys.size;arith.difffloatfA[2/26.81] Aspect ratio (4)phys.areafloatfL[1.51/11.36] Linearity (5)stat.stdevfloatLwt[1.8/121] Linearity-weighted end-to-end lengthpcsrc.morph.scLengthfloatRgc[0.2/11.6] Median of clump Galactocentric radii for the filamentkpcpos.distance;pos.galactocentricfloatZ[-99/82] Height above Galactic mid-planepcpos.cartesian.z;pos.galacticfloate_Z[0.7/12.5]? Uncertainty in Zpcstat.error;src.redshiftfloatnullabletheta[-1/89] Orientation angle between filament and Galactic mid-plane (6)degpos.posAngfloate_theta[0.1/9.6]? Uncertainty in thetadegstat.error;pos.posAngfloatnullableMorphMorphology class (7)meta.code.class;src.morph.typecharDGMF[-0.5/0.62]? Dense gas mass fraction (8)phys.massfloatnullable_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.ranullableindexed_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.decnullableindexed