Blazar Compton Efficiencies
نویسندگان
چکیده
منابع مشابه
On Compton Scattering Scenarios for Blazar Flares
The synchrotron reflection scenario recently proposed to explain γ-ray flares observed from blazar jets is studied. Our analysis takes into account the angular distribution of the beamed radiation, the finite extent of the scattering region, and light travel-time effects. We compare energy densities and powers for synchrotron, SSC, reflected synchrotron (RSy), and external Compton (EC) scatteri...
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We find that energy losses due to synchrotron self-Compton (SSC) emission in blazar jets can produce distinctive signatures in the time-averaged synchrotron and SSC spectra of these objects. For a fairly broad range of particle injection distributions, SSC-loss dominated synchrotron emission exhibits a spectral dependence Fν ∼ ν−3/2. The presence or absence of this dependence in the optical and...
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Context. In a self-absorbed synchrotron source with power-law electrons, rapid inverse Compton cooling sets in when the brightness temperature of the source reaches TB ∼ 10 12 K. However, brightness temperatures inferred from observations of intra-day variable sources (IDV) are well above the ”Compton catastrophe” limit. This can be understood if the underlying electron distribution cuts off at...
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We report on the detection of excess hard X-ray emission from the TeV BL Lac object Mrk 421 during the historical low-flux state of the source in January 2013. NuSTAR observations were conducted four times between MJD 56294 and MJD 56312 with a total exposure of 80.9 ksec. The source flux in the 3 − 40 keV range was nearly constant except for MJD 56307, when the average flux level increased by ...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2012
ISSN: 1742-6596
DOI: 10.1088/1742-6596/355/1/012015