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Kilohertz Quasiperiodic Oscillations in Atoll SourcesThe scientific goal of this project was to monitor two selected atoll sources to search for quasiperiodic oscillations (QPOs) near 1000 Hz and to study the long evolution of high frequency QPOs and their dependence on other parameters of the system such as x-ray luminosity and spectral state. All of the requested observations were carried out and the data has been analyzed. Three publications have appeared in the Astrophysical Journal using data from this proposal.
Document ID
19990047446
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
Halpern, Jules P. (Columbia Univ. New York, NY United States)
Kaaret, Philip (Columbia Univ. New York, NY United States)
Date Acquired
August 19, 2013
Publication Date
April 1, 1999
Subject Category
Astrophysics
Report/Patent Number
CAL-3092
Funding Number(s)
CONTRACT_GRANT: NAG5-4416
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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