An extended multi-zone model for the MCG-6-30-15 warm absorber
arXiv:astro-ph/0002015 · doi:10.1046/j.1365-8711.2000.03409.x
Abstract
The variable warm absorber seen with {\em ASCA} in the X-ray spectrum of MCG6-30-15 shows complex time behaviour in which the optical depth of OVIII anticorrelates with the flux whereas that of OVII is unchanging. The explanation in terms of a two zone absorber has since been challenged by {\em BeppoSAX} observations. These present a more complicated behaviour for the OVIII edge. We demonstrate here that the presence of a third, intermediate, zone can explain all the observations. In practice, warm absorbers are likely to be extended, multi-zone regions of which only part causes directly observable absorption edges at any given time.
5 pages, 6 figures, accepted for publication in MNRAS
References in corpus (1)
Cited by in corpus (14)
- Revealing the Dusty Warm Absorber in MCG--6-30-15 with the Chandra HETG
- Optical--to--X-ray emission in low-absorption AGN: Results from the Swift-BAT 9 month catalogue
- Equatorial scattering and the structure of the broad-line region in Seyfert nuclei: evidence for a rotating disc
- Can a Dusty Warm Absorber Model Reproduce the Soft X-ray Spectra of MCG-6-30-15 and Mrk 766?
- The Kinematics and Physical Conditions of the Ionized Gas in Markarian 509. I. Chandra High-Energy Grating Spectroscopy
- X-ray absorption and rapid variability of the dwarf Seyfert nucleus of NGC4395
- Evidence for an intermediate mass black hole and a multi-zone warm absorber in NGC 4395
- Properties of warm absorbers in active galaxies: a systematic stability curve analysis
- The soft X-ray absorption lines of the Seyfert 1 galaxy MCG--6-30-15
- Observational Evidence for a Multiphase Outflow in QSO FIRST J1044+3656
- Dielectronic recombination and stability of warm gas in AGN
- TPHO: a time-dependent photoionisation model for AGN outflows
- Weighing black holes with warm absorbers
- On the Location and Composition of the Dust in the MCG-6-30-15 Warm Absorber