Browsing by Author "Kyuseok Oh"

Now showing 1 - 4 of 4
  • Thumbnail Image
    Item
    BASS. XXI. The Data Release 2 Overview
    (2022) Michael J. Koss; Benny Trakhtenbrot; Claudio Ricci; Franz E. Bauer; Ezequiel Treister; Richard Mushotzky; C. Megan Urry; Tonima T. Ananna; Mislav Baloković; Jakob S. den Brok; S. Bradley Cenko; Fiona Harrison; Kohei Ichikawa; Isabella Lamperti; Amy Lein; Julian E. Mejía-Restrepo; Kyuseok Oh; Fabio Pacucci; Ryan W. Pfeifle; Meredith C. Powell; George C. Privon; Federica Ricci; Mara Salvato; Kevin Schawinski; Taro Shimizu; Krista L. Smith; Daniel Stern
  • Thumbnail Image
    Item
    BASS. XXII. The BASS DR2 AGN Catalog and Data
    (2022) Michael J. Koss; Claudio Ricci; Benny Trakhtenbrot; Kyuseok Oh; Jakob S. den Brok; Julian E. Mejía-Restrepo; Daniel Stern; George C. Privon; Ezequiel Treister; Meredith C. Powell; Richard Mushotzky; Franz E. Bauer; Tonima T. Ananna; Mislav Baloković; Rudolf E. Bär; George Becker; Patricia Bessiere; Leonard Burtscher; Turgay Caglar; Enrico Congiu; Phil Evans; Fiona Harrison; Marianne Heida; Kohei Ichikawa; Nikita Kamraj; Isabella Lamperti; Fabio Pacucci; Federica Ricci; Rogério Riffel; Alejandra F. Rojas; Kevin Schawinski; Matthew J. Temple; C. Megan Urry; Sylvain Veilleux; Jonathan Williams
  • Thumbnail Image
    Item
    BASS. XXX. Distribution Functions of DR2 Eddington Ratios, Black Hole Masses, and X-Ray Luminosities
    (2022) Tonima Tasnim Ananna; Anna K. Weigel; Benny Trakhtenbrot; Michael J. Koss; C. Megan Urry; Claudio Ricci; Ryan C. Hickox; Ezequiel Treister; Franz E. Bauer; Yoshihiro Ueda; Richard Mushotzky; Federica Ricci; Kyuseok Oh; Julian E. Mejía-Restrepo; Jakob Den Brok; Daniel Stern; Meredith C. Powell; Turgay Caglar; Kohei Ichikawa; O. Ivy Wong; Fiona A. Harrison; Kevin Schawinski
  • Thumbnail Image
    Item
    BAT AGN Spectroscopic Survey. XX. Molecular Gas in Nearby Hard-X-Ray-selected AGN Galaxies
    (2021) Michael J. Koss; Benjamin Strittmatter; Isabella Lamperti; Taro Shimizu; Benny Trakhtenbrot; Amelie Saintonge; Ezequiel Treister; Claudia Cicone; Richard Mushotzky; Kyuseok Oh; Claudio Ricci; Daniel Stern; Tonima Tasnim Ananna; Franz E. Bauer; George C. Privon; Rudolf E. Bär; Carlos De Breuck; Fiona Harrison; Kohei Ichikawa; Meredith C. Powell; David Rosario; David B. Sanders; Kevin Schawinski; Li Shao; C. Megan Urry; Sylvain Veilleux
    We present the host-galaxy molecular gas properties of a sample of 213 nearby (0.01.<.z.<.0.05) hard-X-rayselected active galactic nucleus (AGN) galaxies, drawn from the 70-month catalog of Swift's Burst Alert Telescope (BAT), with 200 new CO(2-1) line measurements obtained with the James Clerk Maxwell Telescope and the Atacama Pathfinder Experiment telescope. We find that AGN in massive galaxies (log(M*/M-circle dot) > 10.5) tend to have more molecular gas and higher gas fractions than inactive galaxies matched in stellar mass. When matched in star formation, we find AGN galaxies show no difference from inactive galaxies, with no evidence that AGN feedback affects the molecular gas. The higher molecular gas content is related to AGN galaxies hosting a population of gas-rich early types with an order of magnitude more molecular gas and a smaller fraction of quenched, passive galaxies (similar to 5% versus 49%) compared to inactive galaxies. The likelihood of a given galaxy hosting an AGN (L-bol > 10(44) erg s(-1)) increases by similar to 10-100 between a molecular gas mass of 10(8.7)M(circle dot) and 10(10.2)M(circle dot). AGN galaxies with a higher Eddington ratio (log(L/L-Edd) > -1.3) tend to have higher molecular gas masses and gas fractions. The log(N-H/cm(-2)) > 23.4) of AGN galaxies with higher column densities are associated with lower depletion timescales and may prefer hosts with more gas centrally concentrated in the bulge that may be more prone to quenching than galaxy-wide molecular gas. The significant average link of host-galaxy molecular gas supply to supermassive black hole (SMBH) growth may naturally lead to the general correlations found between SMBHs and their host galaxies, such as the correlations between SMBH mass and bulge properties, and the redshift evolution of star formation and SMBH growth.