Similar Shot Noise in CYG X-1, GROJ 0422+32 and 1E 1724-3045

Details Similar Shot Noise in CYG X-1, GROJ 0422+32 and 1E 1724-3045 Similar Shot Noise in CYG X-1, GROJ 0422+32 and 1E 1724-3045

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.368y&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We study the rapid variability in Cyg X-1 observed with RXTE/PCA on Jan 17 and 20 of 1997. The power spectrum below 200 Hz can be characterized by two "shot noise" components and a peaked noise at 0.2 Hz. This is similar to those "shot noise" observed in another black hole candidate GRO J0422+32 and a neutron star X-ray binary 1E 1724-3045. We compare the shot noise in these different X-ray binaries. Our result suggests that the mechanism of shots is similar in both black hole systems and neutron star systems, and in high mass X-ray binaries and low mass X-ray binaries.

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