X-ray absorption in Seyfert 2 galaxies
نویسندگان
چکیده
منابع مشابه
On X-ray Variability in Seyfert Galaxies
This paper presents a quantification of the X-ray variability amplitude for 79 ASCA observations of 36 Seyfert 1 galaxies. We find that consideration of sources with the narrowest permitted lines in the optical band introduces scatter into the established correlation between X-ray variability and nuclear luminosity. Consideration of the X-ray spectral index and variability properties together s...
متن کاملThe X–ray Spectrum of Compton–thick Seyfert 2 Galaxies
Current ideas on the X–ray spectrum of Compton–thick Seyfert 2 galaxies are reviewed, and a brief description of the four presently known sources of this class are given.
متن کاملSoft X - ray Spectroscopy of Seyfert 2 Galaxies
Soft X-ray spectroscopy of Seyfert 2 galaxies provides perhaps the best method to probe the possible connection between AGN activity and star formation. Obscuration of powerful radiation from the inferred nucleus allows for detailed study of circumnuclear emission regions. And soft X-ray spectroscopy of these regions allows for robust discrimination between warm gas radiatively-driven by the AG...
متن کامل" Hidden " Seyfert 2 Galaxies and the X-ray Background
Obscured active galactic nuclei, which are classified optically as type 2 (narrow-line) Seyfert galaxies in the local universe, are by far the most promising candidates for the origin of the hard (2–10 keV) X-ray background radiation. However, optical follow-up observations of faint X-ray sources in deep Chandra images have revealed surprising numbers of apparently normal galaxies at modest red...
متن کاملHigh Resolution X - Ray Spectroscopy of Seyfert 2 Galaxies
X-ray spectroscopy of Seyfert 2 galaxies provides an excellent probe of the circumnuclear environment in active galactic nuclei. The grating experiments on both Chandra and XMM-Newton have now provided the first high resolution spectra of several of the brightest Seyfert 2's. We present Chandra HETG data on Markarian 3, and XMM-Newton RGS data on NGC 1068. In both cases, the spectra are dominat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2001
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2001.04710.x