BASS XXII: The BASS DR2 AGN Catalog and Data
Abstract
We present the AGN catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1425 optical spectra, of which 1181 are released for the first time, for the 858 hard X-ray selected AGN in the Swift BAT 70-month sample. The majority of the spectra (813/1425, 57%) are newly obtained from VLT/Xshooter or Palomar/Doublespec. Many of the spectra have both higher resolution (R>2500, N~450) and/or very wide wavelength coverage (3200-10000 A, N~600) that are important for a variety of AGN and host galaxy studies. We include newly revised AGN counterparts for the full sample and review important issues for population studies, with 44 AGN redshifts determined for the first time and 780 black hole mass and accretion rate estimates. This release is spectroscopically complete for all AGN (100%, 858/858) with 99.8% having redshift measurements (857/858) and 96% completion in black hole mass estimates of unbeamed AGN (outside the Galactic plane). This AGN sample represents a unique census of the brightest hard X-ray selected AGN in the sky, spanning many orders of magnitude in Eddington ratio (Ledd=10^-5-100), black hole mass (MBH=10^5-10^10 Msun), and AGN bolometric luminosity (Lbol=10^40-10^47 ergs/s).
Keywords
Cite
@article{arxiv.2207.12432,
title = {BASS XXII: The BASS DR2 AGN Catalog and Data},
author = {Michael J. Koss and Claudio Ricci and Benny Trakhtenbrot and Kyuseok Oh and Jakob S. den Brok and Julian E. Mejia-Restrepo and Daniel Stern and George C. Privon and Ezequiel Treister and Meredith C. Powell and Richard Mushotzky and Franz E. Bauer and Tonima T. Ananna and Mislav Balokovic and Rudolf E. Bar and George Becker and Patricia Bessiere and Leonard Burtscher and Turgay Caglar and Enrico Congiu and Phil Evans and Fiona Harrison and Marianne Heida and Kohei Ichikawa and Nikita Kamraj and Isabella Lamperti and Fabio Pacucci and Federica Ricci and Rogerio Riffel and Alejandra F. Rojas and Kevin Schawinski and Matthew Temple and C. Megan Urry and Sylvain Veilleux and Jonathan Williams},
journal= {arXiv preprint arXiv:2207.12432},
year = {2022}
}
Comments
34 pages, 11 figures, 15 tables, published in ApJS as part of BASS DR2 special issue