VizieR Online Data Catalog: Black hole binaries quasi-periodic oscillations (Motta+, 2015)

In this work, we use data collected by the Rossi X-ray Timing Explorer (RXTE)/Proportional Counter Array (PCA) satellite to analyse the effects of inclination on the fast time-variability properties of black hole binaries (BHBs). For our analysis, we considered only the sources that have shown low-frequency QPOs (LFQPOs). We only investigate those that have been densely monitored by RXTE, in order to maximize the chances of observing high-inclination features (i.e. X-ray absorption dips or eclipses), if present. We examined all the RXTE archival observations of the sources in our sample. For each observation, we computed power spectra from RXTE/PCA data using custom software under IDL in the energy band 2-26 keV (absolute PCA channel 0 to 62). We used 128 s-long intervals and a Nyquist frequency of 1024 Hz. We averaged the power density spectrum (PDS) and subtracted the contribution due to Poissonian noise (see Zhang et al. 1995ApJ...449..930Z). The PDS were normalized according to Leahy, Elsner & Weisskopf (1983ApJ...272..256L) and converted to square fractional rms (Belloni & Hasinger 1990A&A...230..103B). We selected for our analysis only observations where a somewhat narrow (quality factor Q>2) low-frequency (<50 Hz) feature was identifiable on top of flat-top or power-law shaped noise components in the PDS.

(2 data files).