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Rieke, G. H. and Alonso Herrero, A. and Weiner, B. J. and Pérez González, Pablo Guillermo and Blaylock, M. and Donley, J. L. and Marcillac, D. (2009) Determining star formation rates for infrared galaxies. Astrophysical journal, 692 (1). pp. 556-573. ISSN 0004-637X
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Official URL: http://dx.doi.org/10.1088/0004-637X/692/1/556
Abstract
We show that measures of star formation rates (SFRs) for infrared galaxies using either single-band 24 μm or extinction-corrected Paα luminosities are consistent in the total infrared luminosity = L(TIR) ~ 10^10 L_☉ range. MIPS 24 μm photometry can yield SFRs accurately from this luminosity upward: SFR(M_☉ yr^–1) = 7.8 × 10^–10 L(24 μm, L_☉) from L(TIR) = 5× 10^9 L_☉ to 10^11 L_☉ and SFR = 7.8 × 10^–10 L(24 μm, 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 Paα (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 μm to 30 cm. We use these templates and the SINGS data to construct average templates from 5 μm to 30 cm for infrared galaxies with L(TIR) = 5× 10^9 to 10^13 L_☉. All of these templates are made available online.
Item Type: | Article |
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Additional Information: | © 2009 The American Astronomical Society. All rights reserved. |
Uncontrolled Keywords: | Initial mass function; Spitzer-space-telescope; Multiband imaging photometer; Active galactic nuclei; Submillimeter galaxies; Nearby galaxies; Forming galaxies; H-alpha; Radio correlation; Spiral galaxies |
Subjects: | Sciences > Physics > Astrophysics Sciences > Physics > Astronomy |
ID Code: | 38660 |
Deposited On: | 29 Jul 2016 14:11 |
Last Modified: | 10 Dec 2018 15:05 |
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