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http://hdl.handle.net/10261/140212
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dc.contributor.author | Pereira-Santaella, Miguel | - |
dc.contributor.author | Alonso-Herrero, A. | - |
dc.contributor.author | Colina, Luis | - |
dc.contributor.author | Miralles-Caballero, D. | - |
dc.contributor.author | Pérez-González, Pablo G. | - |
dc.contributor.author | Arribas-Mocoroa, Santiago | - |
dc.contributor.author | Bellocchi, E. | - |
dc.contributor.author | Cazzoli, S. | - |
dc.contributor.author | Díaz-Santos, T. | - |
dc.contributor.author | Piqueras López, Javier | - |
dc.date.accessioned | 2016-11-15T10:26:55Z | - |
dc.date.available | 2016-11-15T10:26:55Z | - |
dc.date.issued | 2015 | - |
dc.identifier | doi: 10.1051/0004-6361/201425359 | - |
dc.identifier | e-issn: 1432-0746 | - |
dc.identifier | issn: 0004-6361 | - |
dc.identifier.citation | Astronomy and Astrophysics 577: A78 (2015) | - |
dc.identifier.uri | http://hdl.handle.net/10261/140212 | - |
dc.description.abstract | We present analysis of the integrated spectral energy distribution (SED) from the ultraviolet (UV) to the far-infrared and Hα of a sample of 29 local systems and individual galaxies with infrared (IR) luminosities between 1011L⊙ and 1011.8L⊙. We combined new narrow-band Hα + [N ii] and broad-band g, r optical imaging taken with the Nordic Optical Telescope (NOT), with archival GALEX, 2MASS, Spitzer, and Herschel data. Their SEDs(photometry and integrated Hα flux) were fitted simultaneously with a modified version of the magphys code using stellar population synthesis models for the UV–near-IR range and thermal emission models for the IR emission taking the energy balance between the absorbed and re-emitted radiation into account. From the SED fits, we derive the star-formation histories (SFH) of these galaxies. For nearly half of them, the star-formation rate appears to be approximately constant during the last few Gyr. In the other half, the current star-formation rate seems to be enhanced by a factor of 3–20 with respect to what occurred ~1 Gyr ago. Objects with constant SFH tend to be more massive than starbursts, and they are compatible with the expected properties of a main-sequence (M-S) galaxy. Likewise, the derived SFHs show that all our objects were M-S galaxies ~1 Gyr ago with stellar masses between 1010.1 and 1011.5 M⊙. We also derived the average extinction (Av = 0.6−3 mag) and the polycyclic aromatic hydrocarbon luminosity to LIR ratio (0.03−0.16) from our fits. We combined the Av with the total IR and Hα luminosities into a diagramthat can be used to identify objects with rapidly changing (increasing or decreasing) SFR during the past 100 Myr. | - |
dc.description.sponsorship | We acknowledge support from the Spanish Plan Nacional de Astronomía y Astrofísica through grants AYA2010-21161-C02-1, AYA2010-21887-C04-03, AYA2012-32295, AYA2012-31447, AYA2012-31277, and AYA2012-39408-C02-01. | - |
dc.publisher | EDP Sciences | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.subject | Galaxies: star formation | - |
dc.subject | Galaxies: evolution | - |
dc.subject | Galaxies: starburst | - |
dc.title | Star-formation histories of local luminous infrared galaxies | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1051/0004-6361/201425359 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1051/0004-6361/201425359 | - |
dc.date.updated | 2016-11-15T10:26:55Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
item.fulltext | With Fulltext | - |
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Star-formation histories.pdf | 33,34 MB | Adobe PDF | Visualizar/Abrir |
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