منابع مشابه
Compton reflection in AGN with Simbol-X
AGN exhibit complex hard X-ray spectra. Our current understanding is that the emission is dominated by inverse Compton processes which take place in the corona above the accretion disk, and that absorption and reflection in a distant absorber play a major role. These processes can be directly observed through the shape of the continuum, the Compton reflection hump around 30 keV, and the iron fl...
متن کاملA SIMBOL-X View of Mi roquasars
Based on spectral simulations, I show how focusing of the X-ray radiations above 10 keV will open a new window for the study of microquasars. With simulations of soft and hard state spectra of Galactic sources, I discuss how SIMBOL-X can help to precisely measure the spin of black holes. Spectral study on short ∼ 1 s time scales will also allow the accretion-ejection connections to be accessed,...
متن کاملWhat can Simbol-X do for gamma-ray binaries?
Gamma-ray binaries have been uncovered as a new class of Galactic objects in the very high energy sky (> 100 GeV). The three systems known today have hard X-ray spectra (photon index ∼1.5), extended radio emission and a high luminosity in gamma-rays. Recent monitoring campaigns of LSI +61o303 in X-rays have confirmed variability in these systems and revealed a spectral hardening with increasing...
متن کاملPengembangan Sistem Penciuman Elektronik Dalam Mengenal Aroma Campuran
C-BLAST system is detection algorithm of the MIMO (Multplei-Input Multiple Output) systems that is designed to achieve good multiplexing gain. In the C-BLAST systems, every antenna transmits has its own independently coded with power control. In this paper we use MMSE (Minimum Mean Square Error) detection to achieve the performance of error rate for the C-BLAST systems. Simulation results show ...
متن کاملExtragalactic Hard X-ray Surveys: From INTEGRAL to Simbol-X
We present some results of the deepest extragalactic survey performed by the INTEGRAL satellite. The fraction of very absorbed AGN is quite large. The sharp decrease in the absorption fraction with X-ray luminosity observed at lower-energy X-rays is not observed. The current lack of truly Compton-thick objects, with an upper limit of 14% to the size of this population, is just compatible with r...
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ژورنال
عنوان ژورنال: Unisia
سال: 1993
ISSN: 0215-1421
DOI: 10.20885/unisia.vol13.iss20.art11