Phase Difference and Coherence as Diagnostics of Accreting Compact Sources
نویسندگان
چکیده
منابع مشابه
Phase Difference and Coherence as Diagnostics of Accreting Compact Sources
We present calculations of the time lags and the coherence function of X-ray photons for a novel model of radiation emission from accretion powered, high-energy sources. Our model involves only Comptonization of soft photons injected near the compact object in an extended but non-uniform atmosphere around the compact object. Our results show that this model produces time lags between the hard a...
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We present model light curves for accreting Black Hole Candidates (BHC) based on a recently proposed model for their spectro-temporal properties. According to this model, the observed light curves and aperiodic variability of BHC are due to a series of soft photon injections at random (Poisson) intervals near the compact object and their reprocessing into hard radiation in an extended but non-u...
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We discuss an idea for how accreting millisecond pulsars could contribute to the understanding of the QCD phase transition in the high-density nuclear matter equation of state (EoS). It is based on two ingredients, the first one being a “phase diagram” of rapidly rotating compact star configurations in the plane of spin frequency and mass, determined with state-of-the-art hybrid equations of st...
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We exhibit, by compiling all data sets we can acquire, that the Fourier-frequencyÈdependent, hard X-ray lags, Ðrst observed in the analysis of aperiodic variability of the light curves of the black hole candidate Cyg X-1, appear to be a property shared by several other accreting black hole candidate sources and also by the di†erent spectral states of this source. We then present both analytic a...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1997
ISSN: 0004-637X
DOI: 10.1086/310695