Blazar flares from Compton dragged shells

Omri Golan, Amir Levinson

Research output: Contribution to journalArticlepeer-review


We compute the dynamics and emission of dissipative shells that are subject to a strong Compton drag, under simplifying assumptions about the dissipation mechanism. We show that under conditions prevailing in blazars, substantial deceleration is anticipated on sub-parsec and parsec scales in cases of rapid dissipation. Such episodes may be the origin of some of the flaring activity occasionally observed in gamma-ray blazars. The shape of the light curves thereby produced reflects the geometry of the emitting surface if the deceleration is very rapid, or the dynamics of the shell if the deceleration is delayed, or initially more gradual, owing, e.g., to continuous injection of energy and momentum.

Original languageEnglish
Article number23
JournalAstrophysical Journal
Issue number1
StatePublished - 10 Aug 2015


  • X-rays: galaxies
  • galaxies: active
  • quasars: general
  • radiation mechanisms: non-thermal

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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