|
Título:
|
Determining star formation rates for infrared galaxies
|
|
Autores:
|
Rieke, G. H. ;
Alonso Herrero, A. ;
Weiner, B. J. ;
Pérez González, Pablo Guillermo ;
Blaylock, M. ;
Donley, J. L. ;
Marcillac, D.
|
|
Tipo de documento:
|
texto impreso
|
|
Editorial:
|
American Astronomical Society, 2009-02-10
|
|
Dimensiones:
|
application/pdf
|
|
Nota general:
|
info:eu-repo/semantics/openAccess
|
|
Idiomas:
|
|
|
Palabras clave:
|
Estado = Publicado
,
Materia = Ciencias: Física: Astrofísica
,
Materia = Ciencias: Física: Astronomía
,
Tipo = Artículo
|
|
Resumen:
|
We show that measures of star formation rates (SFRs) for infrared galaxies using either single-band 24 ?m or extinction-corrected Pa? luminosities are consistent in the total infrared luminosity = L(TIR) ~ 10^10 L_? range. MIPS 24 ?m photometry can yield SFRs accurately from this luminosity upward: SFR(M_? yr^–1) = 7.8 × 10^–10 L(24 ?m, L_?) from L(TIR) = 5× 10^9 L_? to 10^11 L_? and SFR = 7.8 × 10^–10 L(24 ?m, L_?)(7.76 × 10^–11 L(24))^0.048 for higher L(TIR). For galaxies with L(TIR) ? 10^10 L_?, these new expressions should provide SFRs to within 0.2 dex. For L(TIR) ? 10^11 L_?, we find that the SFR of infrared galaxies is significantly underestimated using extinction-corrected Pa? (and presumably using any other optical or near-infrared recombination lines). As a part of this work, we constructed spectral energy distribution templates for eleven luminous and ultraluminous purely star forming infrared galaxies and over the spectral range 0.4 ?m to 30 cm. We use these templates and the SINGS data to construct average templates from 5 ?m to 30 cm for infrared galaxies with L(TIR) = 5× 10^9 to 10^13 L_?. All of these templates are made available online.
|
|
En línea:
|
https://eprints.ucm.es/38660/1/perezgonzalez67libre.pdf
|
