Simultaneous evidence of edge collapse and hub-filament configurations: a rare case study of a giant molecular filament, G45.3+0.1

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dc.contributor.author Bhadari, Naval Kishor
dc.contributor.author Dewangan, Lokesh Kumar
dc.contributor.author Ojha, Devendra K.
dc.contributor.author Pirogov, Lev E.
dc.contributor.author Maity, Arup Kumar
dc.coverage.spatial United Kingdom
dc.date.accessioned 2022-06-08T09:25:01Z
dc.date.available 2022-06-08T09:25:01Z
dc.date.issued 2022-05
dc.identifier.citation Bhadari, Naval Kishor; Dewangan, Lokesh Kumar; Ojha, Devendra K.; Pirogov, Lev E. and Maity, Arup Kumar, "Simultaneous evidence of edge collapse and hub-filament configurations: a rare case study of a giant molecular filament, G45.3+0.1", The Astrophysical Journal, DOI: 10.3847/1538-4357/ac65e9, vol. 930, no. 2, May 2022. en_US
dc.identifier.issn 0004-637X
dc.identifier.issn 1538-4357
dc.identifier.uri https://doi.org/10.3847/1538-4357/ac65e9
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/7794
dc.description.abstract We study multiwavelength and multiscale data to investigate the kinematics of molecular gas associated with the star-forming complexes G045.49+00.04 (G45E) and G045.14+00.14 (G45W) in the Aquila constellation. An analysis of the FUGIN 13CO(1-0) line data unveils the presence of a giant molecular filament (GMF G45.3+0.1; length ∼75 pc, mass ∼1.1 × 106 M⊙) having a coherent velocity structure at [53, 63] km s-1. The GMF G45.3+0.1 hosts G45E and G45W complexes at its opposite ends. We find large-scale velocity oscillations along GMF G45.3+0.1, which also reveals the linear velocity gradients of -0.064 and +0.032 km s-1 pc-1 at its edges. The photometric analysis of point-like sources shows the clustering of young stellar object (YSO) candidate sources at the filament's edges where the presence of dense gas and H ii regions are also spatially observed. The Herschel continuum maps along with the CHIMPS 13CO(3-2) line data unravel the presence of parsec scale hub-filament systems (HFSs) in both sites, G45E and G45W. Our study suggests that the global collapse of GMF G45.3+0.1 is end dominated, with the addition to the signature of global nonisotropic collapse at the edges. Overall, GMF G45.3+0.1 is the first observational sample of filament where the edge-collapse and the hub-filament configurations are simultaneously investigated. These observations open the new possibility of massive star formation, including the formation of HFSs.
dc.description.statementofresponsibility by Naval Kishor Bhadari, Lokesh Kumar Dewangan, Devendra K. Ojha, Lev E. Pirogov and Arup Kumar Maity
dc.format.extent vol. 930, no. 2
dc.language.iso en_US en_US
dc.publisher IOP Publishing en_US
dc.subject Kinematics en_US
dc.subject Aquila constellation en_US
dc.subject Oscillations en_US
dc.subject Photometric analysis en_US
dc.subject Plustering en_US
dc.subject Configurations en_US
dc.title Simultaneous evidence of edge collapse and hub-filament configurations: a rare case study of a giant molecular filament, G45.3+0.1 en_US
dc.type Article en_US
dc.relation.journal Astrophysical Journal


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