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Inclination Angles of Black Hole X-Ray Binaries Manifest Strong Gravity around Black HolesSystem inclination angles have been determined for about 15 X-ray binaries, in which stellar mass black holes are considered to exist. These inclination angles range between 25 degrees and 80 degrees, but peaked between 60-70 degrees. This peak is not explained in the frame work of Newtonian gravity. However, this peak is reproduced naturally if we model the observed X-ray radiations as being produced in the accretion disks very close to the black hole horizons, where the extremely strong general and special relativistic effects, caused by the extremely strong gravity near the black hole horizons, modify the local radiation significantly as the X-rays propagate to the remote observer. Therefore the peak of the inclination angle distribution provides evidence or strong gravity around stellar mass black holes.
Document ID
20040071156
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Zhang, S. N.
(Alabama Univ. Huntsville, AL, United States)
Zhang, Xiao-Ling
Yao, Yangsen
(Alabama Univ. Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
April 1, 2002
Subject Category
Astrophysics
Report/Patent Number
N17.083
Meeting Information
Meeting: American Physical Society April Meeting
Location: Albuquerque, NM
Country: United States
Start Date: April 20, 2002
End Date: April 23, 2002
Sponsors: American Physical Society, American Astronomical Society
Funding Number(s)
CONTRACT_GRANT: NAG5-7927
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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