1. What contributions have the authors mentioned in the paper "Determining star formation rates for infrared galaxies" ?
The authors 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 ) ∼ 1010 L range.. As a part of this work, the authors 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.. For L ( TIR ) 1011 L, the authors find that the SFR of infrared galaxies is significantly underestimated using extinction-corrected Paα ( and presumably using any other optical or nearinfrared recombination lines ).
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2. What is the alternative to estimating SFRs for infrared galaxies?
An alternative extinction-free approach to estimating SFRs for infrared galaxies is to utilize the proportionality between the radio and infrared emission of galaxies originally found by van der Kruit (1971) and Rieke & Low (1972) and shown to be universal with IRAS (Helou et al. 1985).
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3. What is the reason for the q24 divergence?
Evidently the selection effects, K-corrections, and other issues in determining q24 using faint survey data have undermined some of the estimates and caused the set to diverge.
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4. Why is the paper motivated by the success of MIPS?
The paper is motivated by the success of MIPS (Rieke et al. 2004) 24 μm photometry in measuring large numbers of faint galaxies whose infrared outputs are not currently accessible at longer wavelengths due to confusion noise and sensitivity limitations.
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