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25 papers · 2 filters
Black hole lightning due to particle acceleration at subhorizon scales
MAGIC Collaboration, J. Aleksić, S. Ansoldi +151
Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio inte…
Estimating Galactic gas content using different tracers: Compatibility of results, dark gas, and unidentified TeV sources
Giovanna Pedaletti, Emma de Oña Wilhelmi, Diego F. Torres +1
A large fraction of Galactic very-high energy (VHE; E100 GeV) -ray sources is cataloged as unidentified. In this work we explore the possibility that these unidentified…
Compact formulae, dynamics and radiation of charged particles under synchro-curvature losses
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
We consider the fundamental problem of charged particles moving along and around a curved magnetic field line, revising the synchro-curvature radiation formulae introduced by Cheng…
An assessment of the pulsar outer gap model. I: Assumptions, uncertainties, and implications for the gap size and the accelerating field
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
The popular outer gap model of magnetospheric emission from pulsars has been widely applied to explain the properties observed in -rays. However, its quantitative predictions re…
Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010
The MAGIC Collaboration, J. Aleksić, S. Ansoldi +251
A flare from the TeV blazar Mrk 421, occurring in March 2010, was observed for 13 consecutive days from radio to very high energy (VHE, E > 100 GeV) gamma-rays with MAGIC, VERITAS,…
An assessment of the pulsar outer gap model. II: Implications for the predicted -ray spectra
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
One of the most important predictions of any gap model for pulsar magnetospheres is the predicted -ray spectra. In the outer gap model, the properties of the synchro-curvature r…