Multi-zone warm and cold clumpy absorbers in three Seyfert galaxies
نویسندگان
چکیده
منابع مشابه
Warm Absorbers in Seyfert 1 Galaxies
X-ray spectroscopy of Seyfert 1 galaxies often reveal absorption edges resulting from photoionized gas along the line-of-sight to the central engine, the so-called warm absorber. I discuss how recent ASCA observations of warm absorber variability in MCG?6-30-15 can lead us to reject a one-zone model and, instead, have suggested a multi-zone warm absorber. The evidence for dust within the warm a...
متن کاملUnification of X-ray winds in Seyfert galaxies: from ultra-fast outflows to warm absorbers
The existence of ionized X-ray absorbing layers of gas along the line of sight to the nuclei of Seyfert galaxies is a well established observational fact. This material is systematically outflowing and shows a large range in parameters. However, its actual nature and dynamics are still not clear. In order to gain insights into these important issues we performed a literature search for papers r...
متن کاملWarm and Cold Molecular Gas in Galaxies
New and archival interferometric 12CO(1→0) datasets from six nearby galaxies are combined with H2 2.122 μm and Hα maps to explore in detail the interstellar medium in different star-forming galaxies. We investigate the relation between warm (H2 at T ∼ 2000 K) and cold (CO at T ∼ 50 K) molecular gas from 100 pc to 2 kpc scales. On these scales, the ratio of warm-to-cold molecular hydrogen correl...
متن کاملDynamics of Warm Absorbing Gas in Seyfert Galaxies: Ngc 5548
A hydromagnetic (MHD) wind from a clumpy molecular accretion disk is invoked to explain observations of warm absorbing gas at UV and X-ray energies in Seyfert 1 galaxies. This paper focuses on two important issues: (1) compatibility of kinematics and dynamics of an MHD wind with the observed properties of warm absorbers; and (2) the relationship between the UV and X-ray absorbing gases. We prov...
متن کاملWarm and Cold Molecular Gas in Luminous Infrared Galaxies
We present the properties of the warm and cold molecular gas in a sample of local Luminous Infrared Galaxies in the Great Observatories All-sky LIRG Survey (GOALS). The rotational transitions of H2 observed in the Mid-Infrared Spectra from the Spitzer Survey trace gas at temperatures about 100K, while the 12 CO (1-0) maps acquired with the Combined Array for Millimeter Astronomy identify the mo...
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: Astronomy and Astrophysics
سال: 2010
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200912509