Obscured AGN at z < 1.5: X-Ray to Far-infrared SEDs and Host Galaxy Morphologies in the GOODS Fields
Abstrak
We present an analysis of spectral energy distributions (SEDs), galaxy light profiles, and visual morphological classifications for 194 X-ray luminous active galactic nuclei (AGN) (intrinsic absorption-corrected log(LX,0.5−7keV)>42.5(maximum45.2)ergs−1 ) with z < 1.5 in the Great Observatories Origins Deep Survey (GOODS) fields. We generate X-ray to far-infrared SEDs normalized at 1 μm for all AGN and sort them according to their emission slopes in the ultraviolet (UV) and infrared (IR). We visually classify their host galaxies’ morphologies and compute their bulge/total light ratios using the Galaxy Shapes of Light (galight) software. Most (94%) GOODS AGN exhibit obscured (i.e., diminished UV and/or mid-IR emission) SEDs. Only 6% show unobscured, quasar-like SEDs. Secular processes appear to play a large role in stimulating AGN emission, since only ∼1/3 of galaxies are undergoing interactions. We also describe the morphological identification of a population of suspected postmerger spheroid galaxies with obscured UV/IR SEDs and distinguish them from the host galaxies of AGN with less obscuration in the UV or IR.
Topik & Kata Kunci
Penulis (21)
W. H. Jarvis
Connor Auge
D. Sanders
Xuheng Ding
Jeana Kim-Bolt
C. Urry
E. Hooper
A. Peca
Aritra Ghosh
Chuan Tian
T. Ananna
Md Mahmudunnobe University of Massachusetts - Amherst
U. O. W. Madison
Eureka Scientific
University of Hawai'i
W. University
N. University
Y. University
University of Washington
Wayne State University
in Bangladesh
Akses Cepat
- Tahun Terbit
- 2026
- Bahasa
- en
- Sumber Database
- Semantic Scholar
- DOI
- 10.3847/1538-4357/ae40b4
- Akses
- Open Access ✓