Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977natur.269..672f&link_type=abstract
Nature, vol. 269, Oct. 20, 1977, p. 672, 673.
Astronomy and Astrophysics
Astronomy
21
Electron Scattering, Galactic Nuclei, X Ray Sources, Galactic Radiation, Spaceborne Astronomy, X Ray Astronomy, X Ray Spectra
Scientific paper
Various galactic nuclei have been established as luminous X-ray sources. Their X-ray spectra seem to point out significant low energy absorption intrinsic to the specific galaxy. Such galaxies manifest a scattered flux of X-rays, detected in the compact source's time variations if most of the scattering material is found in the nucleus. Since much of the gas is present in the body (disk) of the galaxy, the scattered flux may be resolvable spatially. The scattered flux spatial structure is a function of the past activity of the compact source and the underlying gas distribution. The spectrum of scattered X-rays may be similar to that of the compact source at levels over 8 keV, having a low energy cut-off caused by photoelectric absorption. The detection of scattered X-rays has been investigated in the case of several galaxies, including Cen A and NGC4151.
No associations
LandOfFree
Electron scattering in X ray-emitting galaxies 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 Electron scattering in X ray-emitting galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron scattering in X ray-emitting galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-747016