138 citations · 760 across the 25 of their papers we have counts for
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astro-ph2006★ 82 cited
Discovery of twin kHz QPOs in the peculiar X-ray binary Circinus X-1
S. Boutloukos, M. van der Klis, D. Altamirano +4
We report the discovery with the RXTE/PCA of twin kHz QPOs in Cir X-1. Eleven cases of simultaneous double QPOs occurred, with significances of up to 6.3 and 5.5 sigma and centroid…
astro-ph2006★ 60 cited
High-frequency Quasi-Periodic Oscillations from GRS 1915+105 in its C state
T. Belloni, P. Soleri, P. Casella +2
We report the results of a systematic timing analysis of RXTE observations of GRS 1915+105 when the source was in its variability class theta, characterized by alternating soft and…