Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...268..105e&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 268, May 1, 1983, p. 105-110.
Astronomy and Astrophysics
Astrophysics
69
Galactic Nuclei, Galactic Radiation, Interstellar Gas, Seyfert Galaxies, Shock Heating, X Ray Sources, Astronomical Models, Binary Stars, Brightness Distribution, Emission Spectra, Forbidden Bands, Heao 2, Luminosity, Radio Galaxies, X Ray Binaries
Scientific paper
The detection of an extended component of the soft X-ray source in NGC 4151 is reported. The observations and the search for the extent of the source are presented, and three possible causes are considered. These include a hot thermal plasma in pressure equilibrium with the optical line emitting clouds and confining them; shock heating of outflowing forbidden line clouds as they impact on the normal interstellar medium of the galaxy; enhanced star formation, stimulated by shock originating from outflowing emission line clouds leading to an unusual concentration of SNR and massive X-ray binaries. It is found that shock heating is the most plausible explanation, although X-ray binaries are a possible source.
Briel Ulrich G.
Elvis Martin
Henry Patrick J.
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