Testing delayed AGN feedback using star formation rate measurements by SED fitting with JCMT/SCUBA-2 data

  • Kim, Changseok (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Jadhav, Yashashree (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) ;
  • Lee, Jeong Ae (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Shin, Jaejin (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Hwang, Ho Seong (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Luo, Rongxin (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Son, Donghoon (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Kim, Hyungi (Astronomy Program, Department of physics and Astronomy, Seoul National University) ;
  • Woo, Hyuk (Astronomy Program, Department of physics and Astronomy, Seoul National University)
  • 발행 : 2021.10.13

초록

The impact of AGN on star formation is one of the main questions in AGN-galaxy coevolution studies. However, direct evidence of AGN feedback is still rare. One of the main obstacles is that various star formation rate (SFR) indicators are contaminated by AGN contribution. We present IR-based SFR measurements of a sample of 52 local (z<0.3) AGNs, which were selected based on kinematical properties of ionized gas outflows, using SED analysis with JCMT/SCUBA-2 data. First, we will compare IR-based SFR with other SFR indicators to check the reliability of the SFR indicators. Second, we will discuss the contribution of Mid-IR emission from hot dust of AGN torus by comparing SED fitting results with and without including AGN dust component. Finally, we will report the correlation between specific SFR (sSFR) and AGN activity (e.g., outflow strength or Eddington ratio) as evidence of no instantaneous feedback and discuss the implications of these results

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