The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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Measuring sub-mm emission from local AGN host galaxies by JCMT SCUBA-2

  • Kim, Changseok (Astronomy Program, Department of Physics and Astronomy, Seoul National University) ;
  • Woo, Jong-Hak (Astronomy Program, Department of Physics and Astronomy, Seoul National University) ;
  • Chung, Aeree (Department of Astronomy, Yonsei University) ;
  • Baek, Junhyun (Department of Astronomy, Yonsei University) ;
  • Jadhav, Yashashree (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
  • Published : 2021.04.13
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Abstract

Observing sub-mm continuum emission from cold dust can play an important role in measuring star formation rates of galaxies, especially in the case of AGN host ones, since AGNs contaminate FIR fluxes by dust heating. To measure star formation rates, we observed total 49 local AGN host galaxies(z<0.2) by SCUBA-2 camera at James Clerk Maxwell Telescope(JCMT) at 450㎛ and 850㎛. We performed several tests with the observed images to determine whether each source is detected, and adopted 3s as the flux upper limit in non-detection cases. Using these measurements and FIR archival data, we modeled spectral energy distributions of the galaxies to estimate star formation rates. The effect of AGN activity on host galaxy star formation will be discussed.

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