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The compton mirror in ngc 4151
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Poutanen, Juri Magdziarz, Pawel Begelman, Mitchell C. Sikora, Marek |
| Copyright Year | 1996 |
| Description | We show that the sharp cutoff in the hard X-ray spectrum of NGC 4151, unusual for Seyfert 1 galaxies, can be reconciled with the average Seyfert 1 spectrum if we assume that the central source is completely hidden from our line of sight by the thick part of the accretion disk or by the broad emission-line clouds. The observed X-ray radiation is produced by scattering of the Seyfert 1 type spectrum in the higher, cooler parts of the accretion disk corona, or in a wind. A sharp cutoff appears as a result of the Compton recoil effect. This model naturally explains a discrepancy regarding the inclination of the central source, inferred to be low (face-on) from observations of the iron K-alpha emission line, but inferred to be high on the basis of optical and UV observations. |
| File Size | 412313 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970027950 |
| Archival Resource Key | ark:/13960/t7bs3qn5h |
| Language | English |
| Publisher Date | 1996-07-10 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Stellar Spectra High Temperature Plasmas Scattering Iron Accretion Disks Galactic Radiation Coronas Seyfert Galaxies Ultraviolet Radiation Light Emission Emission Spectra X Ray Spectra X Ray Astronomy Line Spectra Compton Effect Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
