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Discerning the radiative dissipation mechanism for prompt emission in Gamma-Ray Bursts (GRBs) requires detailed spectroscopic modeling that straddles the $\nu F_{\nu}$ peak in the 100 keV - 1 MeV rang...
The basic mechanism responsible for radio emission in radio-loud active galactic nuclei (AGNs) is assumed to be synchrotron radiation. We suggest here that radio emission in radio-quiet objects is als...
Sagittarius A∗ in the Galactic center harbors a supermassive black hole and exhibits various active phenomena. Besides quiescent emission in radio and sub-millimeter radiation, flares in the nea...
Context. Observations of SNRs in X-ray and γ-ray bands promise to contribute with important information in our understanding of the kinematics of charged particles and magnetic fields in the vicinity ...
1ES 1959+650 is one of the most remarkable high-peaked BL Lacertae objects (HBL). In 2002, it exhibited a TeV gamma-ray flare without a similar brightening of the synchrotron component at lower energi...
The origin of the diffuse hard X-ray emission of starburst galaxies is a long-standing problem. We suggest that synchrotron emission of 10 - 100 TeV electrons and positrons can contribute significantl...

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