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Lepto-hadronic model for the broadband emission of Cygnus X-1
(EDP Sciences, 2015-12)
Context. Cygnus X-1 is a well-observed microquasar. Broadband observations at all wavelengths have been collected over the years.The origin of the MeV tail observed with COMPTEL and INTEGRAL is still under debate and it ...
On the nature of the episodic gamma-ray flare observed in Cygnus X-1
(Asociación Argentina de Astronomía, 2009-09)
The high-mass microquasar Cygnus X-1, the best established candidate for a stellar-mass black hole, has been detected in a flaring state at very high energies, E > 200 GeV (Albert et al. 2007). The observation was per- ...
Probing the Precession of the Inner Accretion Disk in Cygnus X-1
(IOP Publishing, 2005-12)
We show that changes in the orientation of the inner accretion disk of Cyg X-1 affect the shape of the broad Fe Ká emission line emitted from this object, in such a way that eV-level spectral resolution observations (such ...
A magnetic reconnection model for explaining the multi-wavelength emission of the microquasars Cyg X-1 and Cyg X-3
(Oxford University Press, 2015-02)
Recent studies have indicated that cosmic ray acceleration by a first-order Fermi process in magnetic reconnection current sheets can be efficient enough in the surrounds of compact sources. In this work, we discuss this ...
A magnetic reconnection model for explaining microquasars radiation
(International Astronomical UnionFlorianópolis, 2013)
Very high energy observations of AGNs and microquasars
are challenging current theories of particle
acceleration (mostly based on shock acceleration)
which have to explain how particles are accelerated
to energies above ...
High-energy flares from jet-clump interactions
(Astronomical Society of the Pacific, 2010-05)
High-mass microquasars are binary systems composed by a massive star and a compact object from which relativistic jets are launched. Regarding the companion star, observational evidence supports the idea that winds of hot ...