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arXiv · 1111.3814

AKARI/IRC Broadband Mid-infrared data as an indicator of Star Formation Rate

F. -T. Yuan·T. T. Takeuchi·V. Buat·S. Heinis·E. Giovannoli·K. L. Murata·J. Iglesias-Paramo·D. Burgarella
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Abstract

AKARI/Infrared Camera (IRC) Point Source Catalog provides a large amount of flux data at {\it S9W} ($9\ {\rm μm}$) and {\it L18W} ($18\ {\rm μm}$) bands. With the goal of constructing Star-Formation Rate(SFR) calculations using IRC data, we analyzed an IR selected GALEX-SDSS-2MASS-AKARI(IRC/Far-Infrared Surveyor) sample of 153 nearby galaxies. The far-infrared fluxes were obtained from AKARI diffuse maps to correct the underestimation for extended sources raised by the point-spread function photometry. SFRs of these galaxies were derived by the spectral energy distribution fitting program CIGALE. In spite of complicated features contained in these bands, both the {\it S9W} and {\it L18W} emission correlate with the SFR of galaxies. The SFR calibrations using {\it S9W} and {\it L18W} are presented for the first time. These calibrations agree well with previous works based on Spitzer data within the scatters, and should be applicable to dust-rich galaxies.

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F. -T. Yuan, T. T. Takeuchi, V. Buat, S. Heinis, E. Giovannoli, K. L. Murata, J. Iglesias-Paramo, D. Burgarella. 2011-11-16. AKARI/IRC Broadband Mid-infrared data as an indicator of Star Formation Rate. https://doi.org/10.1093/pasj%2F63.6.1207

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