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  • 标题:A New Ordering Parameter for Blazar SEDs
  • 本地全文:下载
  • 作者:M. Zacharias ; R. Schlickeiser
  • 期刊名称:PoS - Proceedings of Science
  • 印刷版ISSN:1824-8039
  • 出版年度:2011
  • 卷号:2011
  • 期号:AGN2011
  • 出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
  • 摘要:Compton dominated blazars exhibit non-linear cooling, if the emission of the high-energy peak is attributed to synchrotron self-Compton (SSC) radiation. This leads to some striking features in the emerging spectral energy distribution (SED). We report of a recent theoretical work (Zacharias & Schlickeiser 2011), where we analyzed in detail the consequences of the non-linear cooling. Two obvious results emerge: Firstly, depending on the initial cooling being either linear or non-linear, the dominating peak is either the synchrotron or the SSC peak. Secondly, for initial non-linear cooling the synchrotron peak exhibits a unique broken power-law, which can be directly attributed to the non-linear cooling regardless of the underlying electron distribution. In order to prove the capability of the approach, we apply our model to large flares of the blazars 3C 279 and 3C 454.3. We achieve rather good fits with reasonable parameters. The results are very promising, and we argue that SSC cooling should be considered for future modeling attempts of blazars exhibiting a dominating inverse Compton peak.
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