The continuous spectrum of Markarian 421 during periods of X-ray satellite observations

Details The continuous spectrum of Markarian 421 during periods of X-ray satellite observations The continuous spectrum of Markarian 421 during periods of X-ray satellite observations

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241...74m&link_type=abstract

Astrophysical Journal, Part 1, vol. 241, Oct. 1, 1980, p. 74-80.

Astronomy and Astrophysics

Astronomy

18

Astronomical Photometry, Bl Lacertae Objects, Continuous Spectra, Galactic Radiation, Spaceborne Astronomy, Ubv Spectra, Elliptical Galaxies, Light Curve, Satellite Observation, X Ray Astronomy

Scientific paper

New UBVRI photometry of Mrk 421 obtained during periods of X-ray satellite observations are presented. An X-ray light curve for 1977 November from the HEAO A-1 experiment is also given. The decomposition of the UBVR fluxes into a compact nonthermal component and an extended galactic component shows that there are coordinated variations in the optical nonthermal and X-ray emission. The data are consistent with the hypothesis that the mini-BL Lac object is emitting by the synchrontron-self-Compton process. The host galaxy of this composite source has properties like those of a giant elliptical.

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