Title

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

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