TY - JOUR
T1 - The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX). I. Sample Selection
AU - Liu, Chenxu
AU - Gebhardt, Karl
AU - Cooper, Erin Mentuch
AU - Davis, Dustin
AU - Schneider, Donald P.
AU - Ciardullo, Robin
AU - Farrow, Daniel J.
AU - Finkelstein, Steven L.
AU - Gronwall, Caryl
AU - Guo, Yuchen
AU - Hill, Gary J.
AU - House, Lindsay
AU - Jeong, Donghui
AU - Jogee, Shardha
AU - Kollatschny, Wolfram
AU - Krumpe, Mirko
AU - Landriau, Martin
AU - Chavez Ortiz, Oscar A.
AU - Zhang, Yechi
N1 - Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - We present the first active galactic nuclei (AGN) catalog of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) observed between 2017 January and 2020 June. HETDEX is an ongoing spectroscopic survey (3500-5500 Å) with no target preselection based on magnitudes, colors or morphologies, enabling us to select AGN based solely on their spectral features. Both luminous quasars and low-luminosity Seyferts are found in our catalog. AGN candidates are selected with at least two significant AGN emission lines, such as the Lyα and C iv λ1549 line pair, or with a single broad emission line with FWHM > 1000 km s-1. Each source is further confirmed by visual inspections. This catalog contains 5322 AGN, covering an effective sky coverage of 30.61 deg2. A total of 3733 of these AGN have secure redshifts, and we provide redshift estimates for the remaining 1589 single broad-line AGN with no crossmatched spectral redshifts from the Sloan Digital Sky Survey Data Release 14 of QSOs. The redshift range of the AGN catalog is 0.25 < z < 4.32, with a median of z = 2.1. The bolometric luminosity range is 109-1014 L o˙ with a median of 1012 L o˙. The median r-band magnitude of our AGN catalog is 21.6 mag, with 34% having r > 22.5, and 2.6% reaching the detection limit at r ∼26 mag of the deepest imaging surveys we searched. We also provide a composite spectrum of the AGN sample covering 700-4400 Å.
AB - We present the first active galactic nuclei (AGN) catalog of the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) observed between 2017 January and 2020 June. HETDEX is an ongoing spectroscopic survey (3500-5500 Å) with no target preselection based on magnitudes, colors or morphologies, enabling us to select AGN based solely on their spectral features. Both luminous quasars and low-luminosity Seyferts are found in our catalog. AGN candidates are selected with at least two significant AGN emission lines, such as the Lyα and C iv λ1549 line pair, or with a single broad emission line with FWHM > 1000 km s-1. Each source is further confirmed by visual inspections. This catalog contains 5322 AGN, covering an effective sky coverage of 30.61 deg2. A total of 3733 of these AGN have secure redshifts, and we provide redshift estimates for the remaining 1589 single broad-line AGN with no crossmatched spectral redshifts from the Sloan Digital Sky Survey Data Release 14 of QSOs. The redshift range of the AGN catalog is 0.25 < z < 4.32, with a median of z = 2.1. The bolometric luminosity range is 109-1014 L o˙ with a median of 1012 L o˙. The median r-band magnitude of our AGN catalog is 21.6 mag, with 34% having r > 22.5, and 2.6% reaching the detection limit at r ∼26 mag of the deepest imaging surveys we searched. We also provide a composite spectrum of the AGN sample covering 700-4400 Å.
UR - https://www.scopus.com/pages/publications/85135108136
UR - https://www.scopus.com/pages/publications/85135108136#tab=citedBy
U2 - 10.3847/1538-4365/ac6ba6
DO - 10.3847/1538-4365/ac6ba6
M3 - Article
AN - SCOPUS:85135108136
SN - 0067-0049
VL - 261
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 2
M1 - 24
ER -