Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-03-07
Astronomy and Astrophysics
Astrophysics
Revised version. Astronomy & Astrophysics (Letters), in press
Scientific paper
10.1051/0004-6361:200500163
Recent observations, reported by Warner and Woudt, of Dwarf Nova Oscillations (DNOs) exhibiting frequency drift, period doubling, and 1:2:3 harmonic structure, can be understood as disc oscillations that are excited by perturbations at the spin frequency of the white dwarf or of its equatorial layers. Similar quasi-periodic disc oscillations in black hole low-mass X-ray binary (LMXB) transients in a 2:3 frequency ratio show no evidence of frequency drift and correspond to two separate modes of disc oscillation excited by an internal resonance. Just as no effects of general relativity play a role in white dwarf DNOs, no stellar surface or magnetic field effects need be invoked to explain the black hole QPOs.
Abramowicz Marek A.
Kluzniak Wlodek
Lasota Jean-Pierre
Warner Brian
No associations
LandOfFree
QPOs in Cataclysmic Variables and in X-ray Binaries does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with QPOs in Cataclysmic Variables and in X-ray Binaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QPOs in Cataclysmic Variables and in X-ray Binaries will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-557772