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Rapid variability, dying pulse trains and black holesAfter reviewing the general model and arguments by which rapid temporal variability and quasi-periodicities are considered indicative of a compact source's possible black hole character, the paper presents a scenario for 'dying pulse trains'. These originate inside the inner edge of accretion disks encircling black holes from accreting flares or other self-luminous entities executing their final few revolutions before reaching the event horizon. Confirmed detection of such phenomena with time scales in the range 0.01 (M/solar mass) to 0.5 (M/solar mass)ms, where M is the mass of the compact source, would provide much better support for its black hole candidacy. Variability on time-scales larger than this by itself places few constraints on the nature of the compact object.
Document ID
19800041182
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Stoeger, W. R.
(Maryland, University College Park, Md.; Specola Vaticana, Castel Gandolfo, Vatican City, United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Publication Information
Publication: Royal Astronomical Society
Subject Category
Astrophysics
Accession Number
80A25352
Funding Number(s)
CONTRACT_GRANT: NGR-21-002-010
Distribution Limits
Public
Copyright
Other

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