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dc.contributor.authorImara, Nia
dc.contributor.authorLada, Charles
dc.contributor.authorLewis, John
dc.contributor.authorBieging, John H.
dc.contributor.authorKong, Shuo
dc.contributor.authorLombardi, Marco
dc.contributor.authorAlves, Joao
dc.date.accessioned2017-06-23T18:35:18Z
dc.date.available2017-06-23T18:35:18Z
dc.date.issued2017-05-15
dc.identifier.citationX Marks the Spot: Nexus of Filaments, Cores, and Outflows in a Young Star-forming Region 2017, 840 (2):119 The Astrophysical Journalen
dc.identifier.issn1538-4357
dc.identifier.doi10.3847/1538-4357/aa6d74
dc.identifier.urihttp://hdl.handle.net/10150/624336
dc.description.abstractWe present a multiwavelength investigation of a region of a nearby giant molecular cloud that is distinguished by a minimal level of star formation activity. With our new (CO)-C-12(J = 2-1) and (CO)-C-13(J = 2-1) observations of a remote region within the middle of the California molecular cloud, we aim to investigate the relationship between filaments, cores, and a molecular outflow in a relatively pristine environment. An extinction map of the region from Herschel Space Observatory observations reveals the presence of two 2 pc long filaments radiating from a highextinction clump. Using the (CO)-C-13 observations, we show that the filaments have coherent velocity gradients and that their mass-per-unit-lengths may exceed the critical value above which filaments are gravitationally unstable. The region exhibits structure with eight cores, at least one of which is a starless, prestellar core. We identify a low-velocity, low-mass molecular outflow that may be driven by a flat spectrum protostar. The outflow does not appear to be responsible for driving the turbulence in the core with which it is associated, nor does it provide significant support against gravitational collapse.
dc.description.sponsorshipNational Science Foundation; Harvard-MIT FFL Postdoctoral Fellowshipen
dc.language.isoenen
dc.publisherIOP PUBLISHING LTDen
dc.relation.urlhttp://stacks.iop.org/0004-637X/840/i=2/a=119?key=crossref.4914c213d16e37a6d37144770d651698en
dc.rights© 2017. The American Astronomical Society. All rights reserved.en
dc.subjectextinctionen
dc.subjectISM: cloudsen
dc.subjectISM: jets and outflowsen
dc.subjectISM: kinematics and dynamicsen
dc.subjectISM: structureen
dc.subjectstars: formationen
dc.titleX Marks the Spot: Nexus of Filaments, Cores, and Outflows in a Young Star-forming Regionen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.identifier.journalThe Astrophysical Journalen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-09-11T20:23:28Z
html.description.abstractWe present a multiwavelength investigation of a region of a nearby giant molecular cloud that is distinguished by a minimal level of star formation activity. With our new (CO)-C-12(J = 2-1) and (CO)-C-13(J = 2-1) observations of a remote region within the middle of the California molecular cloud, we aim to investigate the relationship between filaments, cores, and a molecular outflow in a relatively pristine environment. An extinction map of the region from Herschel Space Observatory observations reveals the presence of two 2 pc long filaments radiating from a highextinction clump. Using the (CO)-C-13 observations, we show that the filaments have coherent velocity gradients and that their mass-per-unit-lengths may exceed the critical value above which filaments are gravitationally unstable. The region exhibits structure with eight cores, at least one of which is a starless, prestellar core. We identify a low-velocity, low-mass molecular outflow that may be driven by a flat spectrum protostar. The outflow does not appear to be responsible for driving the turbulence in the core with which it is associated, nor does it provide significant support against gravitational collapse.


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