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astro-ph2004★ 229 cited
A study of the low-frequency quasi-periodic oscillations in the X-ray light curves of the black hole candidate XTE J1859+226
Piergiorgio Casella, Tomaso Belloni, Jeroen Homan +1
We present the results of an extensive timing analysis of the 1999 outburst of the soft X-ray transient and black hole candidate XTE J1859+226 as observed with the Rossi X-Ray Timi…
astro-ph2004★ 10 cited
A transient high-coherence oscillation in 4U 1820-30
T. Belloni, I. Parolin, P. Casella
We re-analyzed two Rossi X-Ray Timing Explorer archival observations of the atoll source 4U 1820-30 in order to investigate the detailed time-frequency properties of the source dur…