New Insights into Low-frequency QPO Phenomena in X-ray Binaries

Details New Insights into Low-frequency QPO Phenomena in X-ray Binaries New Insights into Low-frequency QPO Phenomena in X-ray Binaries

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21540408s&link_type=abstract

American Astronomical Society, AAS Meeting #215, #404.08; Bulletin of the American Astronomical Society, Vol. 42, p.226

Physics

Scientific paper

We present our analysis of archival X-ray timing data on four galactic compact objects known to exhibit a variety quasi-periodic oscillations. A time-domain approach, utilizing Autocorrelation Functions (ACFs), as opposed to conventional frequency-domain analyses, is pursued to search for possible fresh insights into the long-standing and unsolved QPO problem. We find three distinct cases in the ACFs: (i) an almost pure oscillatory signal (GRS 1915+105), (ii) a long-lived oscillatory signal (XTE J1550-564) and (XTE J1859+226) and (iii) a rapidly-damped oscillatory signal (Cygnus X-2). While our analysis involves a small number of objects, it appears to imply that there may be fundamental differences leading to these distinct signatures. We describe our analysis and speculate on the possible underlying physics.

Affiliated with

Also associated with

No associations

Rating

New Insights into Low-frequency QPO Phenomena 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 New Insights into Low-frequency QPO Phenomena in X-ray Binaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Insights into Low-frequency QPO Phenomena in X-ray Binaries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-964876