A Hard Look at Local, Optically Selected, Obscured Seyfert Galaxies
Document Type
Article
Publication Date
10-6-2020
Publication Title
The Astrophysical Journal
Volume
901
Issue
2
First page number:
1
Last page number:
27
Abstract
We study the X-ray spectra of a sample of 19 obscured, optically selected Seyfert galaxies (Sy 1.8, 1.9, and 2) in the local universe (d ≤ 175 Mpc), drawn from the CfA Seyfert sample. Our analysis is driven by the high sensitivity of NuSTAR in the hard X-rays, coupled with soft X-ray spectra using XMM-Newton, Chandra, Suzaku, and Swift/XRT. We also analyze the optical spectra of these sources in order to obtain accurate mass estimates and Eddington fractions. We employ four different models to analyze the X-ray spectra of these sources, which all provide consistent results. We find that 79%–90% of the sources are heavily obscured with line-of-sight column density N H... (See full abstract in article).
Keywords
Active galactic nuclei; X-ray active galactic nuclei; Active galaxies; High energy astrophysics; X-ray astronomy; Seyfert galaxies; X-ray surveys
Disciplines
Stars, Interstellar Medium and the Galaxy
Language
English
Repository Citation
Kammoun, E. S.,
Miller, J. M.,
Koss, M.,
Oh, K.,
Zoghbi, A.,
Mushotzky, R. F.,
Barret, D.,
Behar, E.,
Brandt, W. N.,
Brenneman, L. W.,
Kaastra, J. S.,
Lohfink, A. M.,
Proga, D.,
Stern, D.
(2020).
A Hard Look at Local, Optically Selected, Obscured Seyfert Galaxies.
The Astrophysical Journal, 901(2),
1-27.
http://dx.doi.org/10.3847/1538-4357/abb29f