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We investigate the star forming activity of a sample of infrared (IR)-brightdust-obscured galaxies (DOGs) that show an extreme red color in the optical andIR regime, $(i - [22])_{\rm AB} > 7.0$. Combining an IR-bright DOG sample withthe flux at 22 $\mu$m $>$ 3.8 mJy discovered by Toba & Nagao (2016) with IRASfaint source catalog version 2 and AKARI far-IR (FIR) all-sky survey brightsource catalog version 2, we selected 109 DOGs with FIR data. For a subsampleof 7 IR-bright DOGs with spectroscopic redshift ($0.07 < z < 1.0$) that wasobtained from literature, we estimated their IR luminosity, star formation rate(SFR), and stellar mass based on the spectral energy distribution fitting. Wefound that (i) WISE 22 $\mu$m luminosity at observed frame is a good indicatorof IR luminosity for IR-bright DOGs and (ii) the contribution of activegalactic nucleus (AGN) to IR luminosity increases with IR luminosity. Bycomparing the stellar mass and SFR relation for our DOG sample and literature,we found that most of IR-bright DOGs lie significantly above the main sequenceof star-forming galaxies at similar redshift, indicating that the majority ofIRAS- and/or AKARI-detected IR-bright DOGs are starburst galaxies.

Far-infrared properties of infrared bright dust-obscured galaxies selected with IRAS and AKARI far-infrared all-sky survey