Multifrequency observation of blazars

Details Multifrequency observation of blazars Multifrequency observation of blazars

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..803m&link_type=abstract

In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background p 803-809 (SEE N90-258

Astronomy and Astrophysics

Astronomy

13

Bl Lacertae Objects, Frequency Ranges, Infrared Astronomy, Quasars, Spectrum Analysis, Stellar Models, Ultraviolet Radiation, X Ray Sources, X Ray Spectra

Scientific paper

Four blazars, 3C279, BL Lac, Mkn 421 and OJ 278 were observed in the frequency range from radio through X-ray. The X-ray spectra of 3C279 and BL Lac were flatter than those in the IR through UV. The X-ray intensity of 3C279 varied with the IR to UV radiation. These facts strongly suggest SSC (Synchrotron Self-Compton) model. The X-ray spectra of Mkn 421 and OJ 287 were smoothly connected in the wavelength regions from IR through X-rays. The multifrequency spectra can be reproduced qualitatively by a jet model.

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