Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...147...22p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 147, no. 1, June 1985, p. 22-34. Research supported by the Consiglio Nazionale
Astronomy and Astrophysics
Astrophysics
Astronomical Spectroscopy, Galactic Radiation, Nonthermal Radiation, Seyfert Galaxies, X Ray Sources, Astronomical Models, Compton Effect, Synchrotron Radiation
Scientific paper
The present discussion of the radiative properties of nonthermal models for the X-ray emission of NGC 4151 takes into account all available observational constraints, emphasizing the lack of sizeable spectral variability during both the brightening and the dimming phase of flare-like events. A synchrotron (S) model is developed with reacceleration in which S losses dominate inverse Compton (IC) losses throughout the source, for relatively small values of the magnetic field, although a much stronger field is needed to avoid the radiative instability due to the production of pairs by IC photon collisions with X-ray and ambient photons. An alternative IC model in which electrons are assumed to flow in a mildly relativistic wind, and to interact with the visible-UV photons emitted by a disk, is shown to reproduce a typical flare profile.
Massaro Enrico
Perola Giuseppe Cesare
Piro Luigi
No associations
LandOfFree
Non-thermal models of the X-ray emission in Seyfert galaxies The case of NGC 4151 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 Non-thermal models of the X-ray emission in Seyfert galaxies The case of NGC 4151, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-thermal models of the X-ray emission in Seyfert galaxies The case of NGC 4151 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1663136