Catalogue of 12CO(J = 1−0) and 13CO(J = 1−0) Molecular Clouds in the Carina Flare Supershell

Publications of the Astronomical Society of Japan

Kawamura, Akiko¹  Dawson, Joanne R.¹  Mizuno, Norikazu¹  Onishi, Toshikazu¹  Fukui, Yasuo¹ 

[1] Department of Physics and Astrophysics, Nagoya University, Chikusa-ku, Nagoya 464-8602

关键词: Catalogs;    "ISM: bubbles";    "ISM: clouds";    "ISM: molecules";   

DOI  :  10.1093/pasj/60.6.1297

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

Wepresentacatalogueof$$^{12}$$CO($$J=$$1-0)and$$^{13}$$CO($$J=$$1-0)molecularcloudsinthespatio-velocityrangeoftheCarinaFlaresupershell,GSH287$$+$$04$$-$$17.Thedatacoveraregionof$$sim$$66squaredegreesandweretakenwiththeNANTEN4mtelescope,atspatialandvelocityresolutionsof$$sim$$2.6'and0.1kms$$^{-1}$$.Decompositionoftheemissionresultsintheidentificationof156$$^{12}$$COcloudsand60$$^{13}$$COclouds,forwhichweprovideobservationalandphysicalparameters.Previousworksuggeststhemajorityofthedetectedmassformspartofacomovingmolecularcloudcomplexthatisphysicallyassociatedwiththeexpandingshell.Thecloudinternalvelocitydispersions,degreeofvirializationandsize-linewidthrelationsarefoundtobeconsistentwiththoseofotherGalacticsamples.However,theverticaldistributionisheavilyskewedtowardshigh-altitudes.Therobustassociationofhigh-$$z$$molecularcloudswithaknownsupershellprovidessomeobservationalbackingforthetheorythatexpandingshellscontributetothesupportofahigh-altitudemolecularlayer.

【 授权许可】

Unknown