"Blobs" in blazar jets

28 Sep 2015  ·  Subramanian Prasad ·

The concept of highly relativistic electrons confined to blobs that are moving out with modestly relativistic speeds is often invoked to explain high energy blazar observations. The important parameters in this model such as the bulk Lorentz factor of the blob ($\Gamma$), the random Lorentz factor of the electrons ($\gamma$) and the blob size are typically observationally constrained, but its not clear how and why the energetic electrons are held together as a blob... Here we present some preliminary ideas based on scenarios for cosmic ray electron self-confinement that could lead to a coherent picture. read more

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High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics