Recurrent ~24 h Periods in RXTE ASM Data
arXiv:astro-ph/0502006 · doi:10.1071/AS04081
Abstract
Analysis of data from the Rossi X-ray Timing Explorer satellite's All Sky Monitor instrument for several X-ray binary sources has identified a recurrent \~24 h period. This period is sometimes highly significant, giving rise to the possibility of it being identified as an orbital or super-orbital period. Further analysis has revealed the same period in a number of other X-ray sources. As a result this period has been discounted as spurious, described variously as arising from daily variations in background levels and beating between the sampling period and long-term secular trends in the light curves. We present here an analysis of the spurious periods and show that the dominant mechanism is in fact spectral leakage of low-frequency power present in the light curves.
9 Pages, 10 figures, 1 table, submitted to PASA 20th December 2004. Added 1 page of text and 3 figures to clarify results and discussion. Resubmitted 16th May 2005. Accepted 25th June 2005
References in corpus (6)
- GX 339-4: the distance, state transitions, hysteresis and spectral correlations
- Dynamical Evidence for a Black Hole in GX 339-4
- Long Term X-ray Variability in GX13+1: Energy Dependent Periodic Modulation
- Optical Spectroscopy of GX 339-4 - Paper I: Orbital Modulation
- A Mass Model for Estimating the Gamma Ray Background of the Burst and Transient Source Experiment
- Long-term Periodicities in the Flux from Low Mass X-ray Binaries
Cited by in corpus (9)
- A Systematic Search for Periodicities in RXTE/ASM Data
- A Comparison of the Variability of the Symbiotic X-ray Binaries GX 1+4, 4U 1954+31, and 4U 1700+24 from Swift/BAT and RXTE/ASM Observations
- Periodic long-term X-ray and radio variability of Cygnus X-1
- Superorbital Period in the High Mass X-ray Binary 2S 0114+650
- On the cyclotron line in Cep X-4
- Super-Orbital Variability in Hard X-rays
- Properties of the 24 Day Modulation in GX 13+1 from Near-Infrared and X-ray Observations
- Decade time-scale modulation of low mass X-ray binaries
- Long-term Periodicities in the Flux from Low Mass X-ray Binaries