Soft X-ray Spectra of Seyfert 2 Galaxies

Details Soft X-ray Spectra of Seyfert 2 Galaxies Soft X-ray Spectra of Seyfert 2 Galaxies

2002-07-18

arxiv.org/abs/astro-ph/0207404v1

Astronomy and Astrophysics

Astrophysics

8 pages, 7 figures. Invited review. To appear in the proceedings of the workshop "X-ray spectroscopy of AGN with Chandra and X

Scientific paper

High resolution spectroscopic observations of Seyfert galaxies with Chandra and XMM-Newton allows us to study the detailed ionization and thermal structures of the X-ray absorbing/emitting material in the circumnuclear environment. The vast improvement in the spectral resolving power by more than an order of magnitude enables us, for the first time, to unambiguously distinguish the dominant line emission mechanisms and to measure its dynamical properties as well. The X-ray band harbors spectral transitions from a wide range of ionization states, including valence-shell transitions in K-shell and L-shell ions from most cosmically abundant elements, as well as inner-shell transitions of iron and other mid-Z elements, which can be probed through absorption measurements. The X-ray spectrum, therefore, provides simultaneous velocity and column density constraints of highly ionized to only slightly ionized gas harbored in many of these systems. We summarize recent results that have emerged from observations of Seyfert 2 galaxies with the grating spectrometers onboard Chandra and XMM-Newton. We give particular emphasis to an empirical physical model that we have developed based on the observed spectra, and how it can be used for comparative studies with Seyfert 1 galaxies to test the AGN unification scenarios.

Affiliated with

Also associated with

No associations

Rating

Soft X-ray Spectra of Seyfert 2 Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Soft X-ray Spectra of Seyfert 2 Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft X-ray Spectra of Seyfert 2 Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-396845