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Title: A Catalog of Broad Hα and Hβ Active Galactic Nuclei in MaNGA
Abstract Broad Hαand Hβemission lines (FWHM > 1000 km s−1) are incredibly efficient tracers of the high-velocity clouds encircling active galactic nuclei (AGNs). As a result, we search for these broad-line AGN in the Sloan Digital Sky Survey’s Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) catalog. We identify 301 broad-line Hαgalaxies and 801 broad-line Hβgalaxies in the catalog. In total, we detect 1042 unique broad-line galaxies with luminosities between 1037and 1043erg s−1; 60 feature both broad Hαand broad Hβemission. We also determine that the broad-line region radius ranges between 0.01 and 46 lt-days, with a median radius of 0.1 lt-days (0.02 pc) for our broad Hβsample. In addition, we find that both samples feature a higher fraction of galaxy mergers (44% for the broad Hαsample and 43% for the broad Hβsample), compared to the full MaNGA galaxy sample (26%), which suggests that merger-driven fueling is strongly active in our sample.  more » « less
Award ID(s):
1847938 1714503
PAR ID:
10601153
Author(s) / Creator(s):
; ;
Publisher / Repository:
The Astrophysical Journal
Date Published:
Journal Name:
The Astrophysical Journal
Volume:
971
Issue:
1
ISSN:
0004-637X
Page Range / eLocation ID:
92
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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