MORPHOLOGY AND MOLECULAR GAS FRACTIONS OF LOCAL LUMINOUS INFRARED GALAXIES AS A FUNCTION OF INFRARED LUMINOSITY AND MERGER STAGE

Simple item page
dc.contributor.authorLarson, K. L.
dc.contributor.authorSanders, D. B.
dc.contributor.authorBarnes, J. E.
dc.contributor.authorIshida, C. M.
dc.contributor.authorEvans, A. S.
dc.contributor.authorMazzarella, J. M.
dc.contributor.authorKim, D. C.
dc.contributor.authorPrivon, G. C.
dc.contributor.authorMirabel, I. F.
dc.contributor.authorFlewelling, H. A.
dc.date.accessioned2024-01-10T12:40:38Z
dc.date.available2024-01-10T12:40:38Z
dc.date.issued2016
dc.description.abstractWe 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-IR > 10(11.5)L(circle dot); however, below this luminosity threshold, minor mergers and secular processes dominate. Additionally, galaxies do not reach L-IR > 10(12.0)L(circle dot) until late in the merger process when both disks are near final coalescence. The mean MGF (MGF = M-H2(M*+ M-H2)) 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 (H-2).
dc.description.funderNational Science Foundation
dc.description.funderDistinguished Visitor Program at the Research School for Astronomy and Astrophysics, Australian National University
dc.description.funderNASA grant
dc.description.funderThirty Meter Telescope International Observatory
dc.description.funderUC Chancellor's Postdoctoral Fellowship Program
dc.description.funderNSF grant
dc.description.funderTaiwan, R.O.C. Ministry of Science and Technology grant
dc.description.funderFONDECYT Postdoctoral Fellowship
dc.description.funderUH TAC
dc.description.funderNational Aeronautics and Space Administration through Planetary Science Division of the NASA Science Mission Directorate
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent16 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3847/0004-637X/825/2/128
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/0004-637X/825/2/128
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77331
dc.identifier.wosidWOS:000381940800046
dc.information.autorucFísica;Privon G;S/I;1031484
dc.issue.numero2
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIOP PUBLISHING LTD
dc.revistaASTROPHYSICAL JOURNAL
dc.rightsacceso restringido
dc.subjectgalaxies: evolution
dc.subjectgalaxies: interactions
dc.subjectinfrared: galaxies
dc.subjectMERGING GALAXIES
dc.subjectULTRALUMINOUS GALAXIES
dc.subjectINTERSTELLAR-MEDIUM
dc.subjectANTENNAE GALAXIES
dc.subjectCONVERSION FACTOR
dc.subjectMAJOR MERGERS
dc.subjectDISK GALAXIES
dc.subjectHERSCHEL-PACS
dc.subjectGREAT DEBATE
dc.subjectGOALS SAMPLE
dc.titleMORPHOLOGY AND MOLECULAR GAS FRACTIONS OF LOCAL LUMINOUS INFRARED GALAXIES AS A FUNCTION OF INFRARED LUMINOSITY AND MERGER STAGE
dc.typeartículo
dc.volumen825
sipa.codpersvinculados1031484
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Morphology and molecular gas fractions of local luminous infrared galaxies as a function of infrared luminosity and merger stage.pdf
Size:
3.03 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas