scholarly journals HIGH-ENERGY EMISSION OF GRB 130427A: EVIDENCE FOR INVERSE COMPTON RADIATION

2013 ◽  
Vol 776 (2) ◽  
pp. 95 ◽  
Author(s):  
Yi-Zhong Fan ◽  
P. H. T. Tam ◽  
Fu-Wen Zhang ◽  
Yun-Feng Liang ◽  
Hao-Ning He ◽  
...  
2008 ◽  
Vol 17 (10) ◽  
pp. 1969-1976
Author(s):  
JÉRÔME PÉTRI ◽  
JOHN G. KIRK

To date, seven gamma-ray pulsars are known, showing pulsed emission up to tens of GeV and associated light-curves with a double-pulse structure. We study this pulsed high-energy emission in the framework of the striped wind model. By numerical integration of the time-dependent emissivity in the current sheets, we compute the phase-dependent spectral variability of the inverse Compton radiation. Several light curves and spectra are presented. The pulses are a direct consequence of relativistic beaming. Our model is able to explain some of the high-energy (10 MeV–10 GeV) spectral features and behavior of several gamma-ray pulsars, such as Geminga and Vela.


2008 ◽  
Vol 17 (10) ◽  
pp. 1903-1908 ◽  
Author(s):  
G. S. VILA ◽  
G. E. ROMERO

Unlike high-mass gamma-ray binaries, low-mass microquasars lack external sources of radiation and matter that could produce high-energy emission through interactions with relativistic particles. In this work, we consider the synchrotron emission of protons and leptons that populate the jet of a low-mass microquasar. In our model photohadronic and inverse Compton (IC) interactions with synchrotron photons produced by both protons and leptons result in a high-energy tail of the spectrum. We also estimate the contribution from secondary pairs injected through photopair production. The high-energy emission is dominated by radiation of hadronic origin, so we can call these objects "proton microquasars".


2009 ◽  
Author(s):  
Zeljka Bosnjak ◽  
Frédéric Daigne ◽  
Guillaume Dubus ◽  
Charles Meegan ◽  
Chryssa Kouveliotou ◽  
...  

2012 ◽  
Vol 21 (1-2) ◽  
Author(s):  
M. Hernanz ◽  
V. Tatischeff

AbstractRecurrent novae occurring in symbiotic binaries are candidate sources of high energy photons, reaching GeV energies. Such emission is a consequence of particle acceleration leading to pion production. the shock between matter ejected by the white dwarf, undergoing a nova explosion, and the wind from the red giant companion are responsible for such a process, which mimics a supernova remnant but with much smaller energetic output and much shorter time scales. Inverse Compton can also be responsible for high energy emission. Recent examples are V407 Cyg, detected by Fermi, and RS Oph, which unfortunately exploded in 2006, before Fermi was launched.


1999 ◽  
Vol 514 (1) ◽  
pp. 138-147 ◽  
Author(s):  
J. Kataoka ◽  
J. R. Mattox ◽  
J. Quinn ◽  
H. Kubo ◽  
F. Makino ◽  
...  

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