Near-infrared and star-forming properties of local luminous infrared galaxies

22 pages, 4 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/astro-ph/0606186

Bibliographic Details
Authors: Alonso-Herrero, A., Rieke, George H., Rieke, Marcia J., Colina, Luis, Pérez-González, Pablo G., Ryder, Stuart D.
Format: article
Publication Date:2006
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/11178
Online Access:http://hdl.handle.net/10261/11178
Access Level:Open access
Keyword:Galaxies: interactions
Galaxies: ISM
Galaxies: spiral
Galaxies: star clusters
H II regions
Infrared: galaxies
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oai_identifier_str oai:digital.csic.es:10261/11178
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network_name_str España
repository_id_str
spelling Near-infrared and star-forming properties of local luminous infrared galaxiesAlonso-Herrero, A.Rieke, George H.Rieke, Marcia J.Colina, LuisPérez-González, Pablo G.Ryder, Stuart D.Galaxies: interactionsGalaxies: ISMGalaxies: spiralGalaxies: star clustersH II regionsInfrared: galaxies22 pages, 4 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/astro-ph/0606186We use Hubble Space Telescope (HST) NICMOS continuum and Paα observations to study the near-infrared and star formation properties of a representative sample of 30 local (d ~ 35-75 Mpc) luminous infrared galaxies (LIRGs, infrared [8-1000 μm] luminosities of log LIR = 11-11.9 Lsun). The data provide spatial resolutions of 25-50 pc and cover the central ~3.3-7.1 kpc regions of these galaxies. About half of the LIRGs show compact (~1-2 kpc) Paα emission with a high surface brightness in the form of nuclear emission, rings, and minispirals. The rest of the sample show Paα emission along the disk and the spiral arms extending over scales of 3-7 kpc and larger. About half of the sample contains H II regions with Hα luminosities significantly higher than those observed in normal galaxies. There is a linear empirical relationship between the mid-IR 24 μm and hydrogen recombination (extinction-corrected Paα) luminosity for these LIRGs, and the H II regions in the central part of M51. This relation holds over more than four decades in luminosity, suggesting that the mid-IR emission is a good tracer of the star formation rate (SFR). Analogous to the widely used relation between the SFR and total IR luminosity of R. Kennicutt, we derive an empirical calibration of the SFR in terms of the monochromatic 24 μm luminosity that can be used for luminous, dusty galaxies.AAH and LC acknowledge support from the Spanish Programa Nacional de Astronomía y Astrofísica under grant AYA2002-01055 and Plan Nacional del Espacio ESP2005-01480, and PGPG from the Spanish Programa Nacional de Astronomía y Astrofísica under grant AYA 2004-01676. This work has been funded by NASA grant HST-GO-10169 and by NASA through contract 1255094 issued by JPL/Caltech.Peer reviewedAmerican Astronomical Society200920092006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65011680530 bytesapplication/pdfhttp://hdl.handle.net/10261/11178reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1086/506958info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/111782026-05-22T06:33:51Z
dc.title.none.fl_str_mv Near-infrared and star-forming properties of local luminous infrared galaxies
title Near-infrared and star-forming properties of local luminous infrared galaxies
spellingShingle Near-infrared and star-forming properties of local luminous infrared galaxies
Alonso-Herrero, A.
Galaxies: interactions
Galaxies: ISM
Galaxies: spiral
Galaxies: star clusters
H II regions
Infrared: galaxies
title_short Near-infrared and star-forming properties of local luminous infrared galaxies
title_full Near-infrared and star-forming properties of local luminous infrared galaxies
title_fullStr Near-infrared and star-forming properties of local luminous infrared galaxies
title_full_unstemmed Near-infrared and star-forming properties of local luminous infrared galaxies
title_sort Near-infrared and star-forming properties of local luminous infrared galaxies
dc.creator.none.fl_str_mv Alonso-Herrero, A.
Rieke, George H.
Rieke, Marcia J.
Colina, Luis
Pérez-González, Pablo G.
Ryder, Stuart D.
author Alonso-Herrero, A.
author_facet Alonso-Herrero, A.
Rieke, George H.
Rieke, Marcia J.
Colina, Luis
Pérez-González, Pablo G.
Ryder, Stuart D.
author_role author
author2 Rieke, George H.
Rieke, Marcia J.
Colina, Luis
Pérez-González, Pablo G.
Ryder, Stuart D.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Galaxies: interactions
Galaxies: ISM
Galaxies: spiral
Galaxies: star clusters
H II regions
Infrared: galaxies
topic Galaxies: interactions
Galaxies: ISM
Galaxies: spiral
Galaxies: star clusters
H II regions
Infrared: galaxies
description 22 pages, 4 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/astro-ph/0606186
publishDate 2006
dc.date.none.fl_str_mv 2006
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/11178
url http://hdl.handle.net/10261/11178
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1086/506958
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1680530 bytes
application/pdf
dc.publisher.none.fl_str_mv American Astronomical Society
publisher.none.fl_str_mv American Astronomical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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