Phase Difference and Coherence as Diagnistics of Accreting Compact Sources

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

15 pages, Latex, using AAS macro, to be published in Astrophysical Journal Letters.

Scientific paper

10.1063/1.53971

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 and soft bands of the X-ray spectrum which increase with Fourier period, in agreement with recent observations; it also produces a coherence function equal to one over a wide range of frequencies if the system parameters do not have significant changes, also in agreement with the limited existing observations. We explore various conditions that could affect coherence functions. We indicate that measurements of these statistical quantities could provide diagnostics of the radial structure of the density of this class of sources.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Phase Difference and Coherence as Diagnistics of Accreting Compact Sources does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phase Difference and Coherence as Diagnistics of Accreting Compact Sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase Difference and Coherence as Diagnistics of Accreting Compact Sources will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-269601

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.