3 papers
astro-ph1998
On Gravitomagnetic Precession and Qpo in Black Hole Candidates
Wei Cui, Wan Chen, S. N. Zhang
The X-ray observation of black hole candidates provides a valuable tool to probe regions very close to the central black hole, where strong-field relativistic effects become import…
astro-ph1997
Cygnus X-1: A Spinning Black Hole?
Wei Cui, Wan Chen, S. N. Zhang
It has been a long-standing puzzle what triggers the spectral transition between the hard and soft states in Cyg X-1. Also, the origin of the frequently observed X-ray flares in th…
astro-ph1996
Search for 1.809 MeV Emission of 26Al from nearby Supernova Remnants using COMPTEL
Juergen Knoedlseder, Uwe Oberlack, Roland Diehl +2
We report the negative results of our searches in COMPTEL data for 1.809 MeV gamma-ray line emission from four localized regions which contain nearby supernova remnants (SNRs). The…