Possible mechanism for the optical variability of Seyfert galactic nuclei

Details Possible mechanism for the optical variability of Seyfert galactic nuclei Possible mechanism for the optical variability of Seyfert galactic nuclei

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975afz....11..643h&link_type=abstract

Astrofizika, vol. 11, Nov. 1975, p. 643-649. In Russian.

Astronomy and Astrophysics

Astronomy

Galactic Nuclei, Optical Properties, Seyfert Galaxies, Synchrotron Radiation, Critical Frequencies, Electron Energy, Ubv Spectra

Scientific paper

A series of synchroton spectra are computed which differ only in the value of the critical frequency and which can represent well the results of UBV observations of the optically variable nuclei of Seyfert galaxies NGC 4151 and NGC 1275. It is found that critical-frequency variation is caused by comparatively small variations in maximum electron energy. For NGC 4151, the magnetic-field intensity is estimated to be at least 0.06 G and the maximum electron energy is estimated to be no more than 170 GeV.

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