HI gas properties of BAT-BASS AGN host galaxies

  • Kim, Jeein (Yonsei University) ;
  • Chung, Aeree (Yonsei University) ;
  • Baek, Junhyun (Yonsei University) ;
  • Oh, Kyuseok (Korea Astronomy and Space Science Institute (KASI)) ;
  • Wong, O. Ivy (Commonwealth Scientific and Industrial Research Organisation (CSIRO)) ;
  • Koss, Michael J. (Eureka Scientific)
  • 발행 : 2021.10.13

초록

We present preliminary results of the VLA archival HI data of local AGN hosts. The sample consists of the galaxies selected from the Swift-BAT hard X-ray survey. The main goal is to probe the gas environment of the sample in order to verify the role of gas accretion as one of the major AGN triggering mechanisms. HI, as a mostly diffuse and extended gas component in many galaxies, is a sensitive tracer to explore the impact of the surroundings on galaxies. In this work, we therefore probe the HI imaging data of a subsample of BAT-BASS AGN hosts, starting with the cases for which relatively high HI fluxes have been reported from the past single-dish observations. Based on their resolved HI properties, we will discuss the possibility of gas accretion and its role in powering AGNs in these examples.

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