Astronomy and Astrophysics – Astronomy
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005arep...49..368h&link_type=abstract
Astronomy Reports, vol. 49, Issue 5, p.368-373
Astronomy and Astrophysics
Astronomy
3
Scientific paper
We analyze multicolor observations of the blazar ON 231 obtained during coordinated observations in 1994 2002. On average, the spectral energy distribution of the variable component in the optical range remains constant, and can be represented by the power law F ν ˜ ν -0.85. Since the radiation of the blazar is strongly polarized, there is no doubt that the variable emission that is responsible for the activity of the blazar is synchrotron radiation. There are small but significant season-to-season variations in the spectral index.
Hagen-Thorn E. I.
Hagen-Thorn Vladimir A.
Sillanpää Aimo
Takalo Leo Olavi
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