Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS
Luminous Infrared (IR) Galaxies (LIRGs, L_IR=10^11-10 L_⨀) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this paper we present a guaranteed time observation (GTO) Spitzer InfraRed Spectrograph...
| Autores: | , , , , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2010 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositório: | Docta Complutense |
| Idioma: | inglês |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/45112 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/45112 |
| Access Level: | Acceso aberto |
| Palavra-chave: | 52 Active galactic nuclei Polycyclic aromatic-hydrocarbon Integral field spectroscopy Dust-obscured galaxies Extreme star-formation 8 mu-m Starburst galaxies Space-telescope Spectrograph irs Arp 299 Astrofísica Astronomía (Física) |
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Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRSAlonso Herrero, AlmudenaPereira Santaella, MiguelRieke, George H.Colina, LuisEngelbracht, Charles W.Pérez González, Pablo GuillermoDíaz Santos, TanioSmith, J. D. T.52Active galactic nucleiPolycyclic aromatic-hydrocarbonIntegral field spectroscopyDust-obscured galaxiesExtreme star-formation8 mu-mStarburst galaxiesSpace-telescopeSpectrograph irsArp 299AstrofísicaAstronomía (Física)Luminous Infrared (IR) Galaxies (LIRGs, L_IR=10^11-10 L_⨀) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this paper we present a guaranteed time observation (GTO) Spitzer InfraRed Spectrograph (IRS) program aimed to obtain spectral mapping of a sample of 14 local d<76Mpc LIRGs. The data cubes map, at least, the central 20arcsec X 20arcsec to 30 arcsec X 30 arcsec regions of the galaxies, and use all four IRS modules covering the full 5-38 μ m spectral range. The final goal of this project is to characterize fully the mid-IR properties of local LIRGs as a first step to understanding their more distant counterparts. In this paper we present the first results of this GTO program. The IRS spectral mapping data allow us to build spectral maps of the bright mid-IR emission lines (e.g., [Ne II] 12.81 μ m, [Ne III]15.56 μ m, [S III] 18.71 μ m, H_2 at 17 μ m), continuum, the 6.2 and 11.3 μ m polycyclic aromatic hydrocarbon (PAH) features, and the 9.7 μ m silicate feature, as well as to extract 1D spectra for regions of interest in each galaxy. The IRS data are used to obtain spatially resolved measurements of the extinction using the 9.7 μ m silicate feature, and to trace star forming regions using the neon lines and the PAH features. We also investigate a number of active galactic nuclei (AGN) indicators, including the presence of high excitation emission lines and a strong dust continuum emission at around 6 9.7 μ m . We finally use the integrated Spitzer/IRS spectra as templates of local LIRGs. We discuss several possible uses for these templates, including the calibration of the star formation rate of IR-bright galaxies at high redshift. We also predict the intensities of the brightest mid-IR emission lines for LIRGs as a function of redshift, and compare them with the expected sensitivities of future space IR missions.ElsevierUniversidad Complutense de Madrid20102010-01-0420102010-01-04journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/45112reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/451122026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| title |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| spellingShingle |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS Alonso Herrero, Almudena 52 Active galactic nuclei Polycyclic aromatic-hydrocarbon Integral field spectroscopy Dust-obscured galaxies Extreme star-formation 8 mu-m Starburst galaxies Space-telescope Spectrograph irs Arp 299 Astrofísica Astronomía (Física) |
| title_short |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| title_full |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| title_fullStr |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| title_full_unstemmed |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| title_sort |
Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS |
| dc.creator.none.fl_str_mv |
Alonso Herrero, Almudena Pereira Santaella, Miguel Rieke, George H. Colina, Luis Engelbracht, Charles W. Pérez González, Pablo Guillermo Díaz Santos, Tanio Smith, J. D. T. |
| author |
Alonso Herrero, Almudena |
| author_facet |
Alonso Herrero, Almudena Pereira Santaella, Miguel Rieke, George H. Colina, Luis Engelbracht, Charles W. Pérez González, Pablo Guillermo Díaz Santos, Tanio Smith, J. D. T. |
| author_role |
author |
| author2 |
Pereira Santaella, Miguel Rieke, George H. Colina, Luis Engelbracht, Charles W. Pérez González, Pablo Guillermo Díaz Santos, Tanio Smith, J. D. T. |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
52 Active galactic nuclei Polycyclic aromatic-hydrocarbon Integral field spectroscopy Dust-obscured galaxies Extreme star-formation 8 mu-m Starburst galaxies Space-telescope Spectrograph irs Arp 299 Astrofísica Astronomía (Física) |
| topic |
52 Active galactic nuclei Polycyclic aromatic-hydrocarbon Integral field spectroscopy Dust-obscured galaxies Extreme star-formation 8 mu-m Starburst galaxies Space-telescope Spectrograph irs Arp 299 Astrofísica Astronomía (Física) |
| description |
Luminous Infrared (IR) Galaxies (LIRGs, L_IR=10^11-10 L_⨀) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this paper we present a guaranteed time observation (GTO) Spitzer InfraRed Spectrograph (IRS) program aimed to obtain spectral mapping of a sample of 14 local d<76Mpc LIRGs. The data cubes map, at least, the central 20arcsec X 20arcsec to 30 arcsec X 30 arcsec regions of the galaxies, and use all four IRS modules covering the full 5-38 μ m spectral range. The final goal of this project is to characterize fully the mid-IR properties of local LIRGs as a first step to understanding their more distant counterparts. In this paper we present the first results of this GTO program. The IRS spectral mapping data allow us to build spectral maps of the bright mid-IR emission lines (e.g., [Ne II] 12.81 μ m, [Ne III]15.56 μ m, [S III] 18.71 μ m, H_2 at 17 μ m), continuum, the 6.2 and 11.3 μ m polycyclic aromatic hydrocarbon (PAH) features, and the 9.7 μ m silicate feature, as well as to extract 1D spectra for regions of interest in each galaxy. The IRS data are used to obtain spatially resolved measurements of the extinction using the 9.7 μ m silicate feature, and to trace star forming regions using the neon lines and the PAH features. We also investigate a number of active galactic nuclei (AGN) indicators, including the presence of high excitation emission lines and a strong dust continuum emission at around 6 9.7 μ m . We finally use the integrated Spitzer/IRS spectra as templates of local LIRGs. We discuss several possible uses for these templates, including the calibration of the star formation rate of IR-bright galaxies at high redshift. We also predict the intensities of the brightest mid-IR emission lines for LIRGs as a function of redshift, and compare them with the expected sensitivities of future space IR missions. |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010 2010-01-04 2010 2010-01-04 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/45112 |
| url |
https://hdl.handle.net/20.500.14352/45112 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
| reponame_str |
Docta Complutense |
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Docta Complutense |
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1869411815909228544 |
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15,300719 |