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dc.contributor.author
Larson, K. L.  
dc.contributor.author
Sanders, D. B.  
dc.contributor.author
Barnes, J. E.  
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Ishida, C. M.  
dc.contributor.author
Evans, A. S.  
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Mazzarella, J. M.  
dc.contributor.author
Kim, D. C.  
dc.contributor.author
Privon, G. C.  
dc.contributor.author
Mirabel Miquele, Igor Felix  
dc.contributor.author
Flewelling, H. A.  
dc.date.available
2017-06-16T18:09:31Z  
dc.date.issued
2016-07-10  
dc.identifier.citation
Larson, K. L.; Sanders, D. B.; Barnes, J. E.; Ishida, C. M.; Evans, A. S.; et al.; Morphology and Molecular Gas Fractions of Local Luminous Infrared Galaxies as a Function of Infrared Luminosity and Merger Stage; Iop Publishing; Astrophysical Journal; 825; 2; 10-7-2016; 1-16; 128  
dc.identifier.issn
0004-637X  
dc.identifier.uri
http://hdl.handle.net/11336/18314  
dc.description.abstract
We present a new, detailed analysis of the morphologies and molecular gas fractions (MGFs) for a complete sample of 65 local luminous infrared galaxies from Great Observatories All-Sky Luminous Infrared Galaxies (LIRG) Survey using high resolution I-band images from The Hubble Space Telescope, the University of Hawaii 2.2 m Telescope and the Pan-STARRS1 Survey. Our classification scheme includes single undisturbed galaxies, minor mergers, and major mergers, with the latter divided into five distinct stages from pre-first pericenter passage to final nuclear coalescence. We find that major mergers of molecular gas-rich spirals clearly play a major role for all sources with ${L}_{\mathrm{IR}}\gt {10}^{11.5}{L}_{\odot };$ however, below this luminosity threshold, minor mergers and secular processes dominate. Additionally, galaxies do not reach ${L}_{\mathrm{IR}}\gt {10}^{12.0}{L}_{\odot }$ until late in the merger process when both disks are near final coalescence. The mean MGF ($\mathrm{MGF}\;=\;{M}_{{{\rm{H}}}_{2}}/({M}_{* }+{M}_{{{\rm{H}}}_{2}})$) for non-interacting and early-stage major merger LIRGs is 18 ± 2%, which increases to 33 ± 3%, for intermediate stage major merger LIRGs, consistent with the hypothesis that, during the early-mid stages of major mergers, most of the initial large reservoir of atomic gas (HI) at large galactocentric radii is swept inward where it is converted into molecular gas (H2).  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Iop Publishing  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Galaxias Evolucion  
dc.subject
Galaxias Interacciones  
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Galaxias  
dc.subject.classification
Astronomía  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Morphology and Molecular Gas Fractions of Local Luminous Infrared Galaxies as a Function of Infrared Luminosity and Merger Stage  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-06-13T14:14:32Z  
dc.journal.volume
825  
dc.journal.number
2  
dc.journal.pagination
1-16; 128  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Larson, K. L.. University of Hawaii; Estados Unidos. California Institute of Technology; Estados Unidos  
dc.description.fil
Fil: Sanders, D. B.. Australian National University; Australia. University of Hawaii; Estados Unidos  
dc.description.fil
Fil: Barnes, J. E.. Kyoto University; Japón. University of Hawaii; Estados Unidos  
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Fil: Ishida, C. M.. University of Hawaii; Estados Unidos  
dc.description.fil
Fil: Evans, A. S.. University of Virginia; Estados Unidos  
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Fil: Mazzarella, J. M.. California Institute of Technology; Estados Unidos  
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Fil: Kim, D. C.. National Radio Astronomy Observatory; Estados Unidos  
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Fil: Privon, G. C.. Universidad de Concepción; Chile  
dc.description.fil
Fil: Mirabel Miquele, Igor Felix. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina  
dc.description.fil
Fil: Flewelling, H. A.. University of Hawaii; Estados Unidos  
dc.journal.title
Astrophysical Journal  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3847/0004-637X/825/2/128  
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info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1605.05417  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/ark/http://iopscience.iop.org/article/10.3847/0004-637X/825/2/128