169 citations · 419 across the 6 of their papers we have counts for
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Intermittent accreting millisecond pulsars: light houses with broken lamps?
D. Altamirano, P. Casella
Intermittent accreting millisecond X-ray pulsars are an exciting new type of sources. Their pulsations appear and disappear either on timescales of hundreds of seconds or on timesc…
X-ray time variability across the atoll source states of 4U 1636--53
D. Altamirano, M. van der Klis, M. Méndez +3
We have studied the rapid X-ray time variability in 149 pointed observations with the \textit{Rossi X-ray Timing Explorer} (RXTE)'s Proportional Counter Array of the atoll source 4…
Phase-coherent timing of the accreting millisecond pulsar SAX J1748.9-2021
Alessandro Patruno, Diego Altamirano, Jason W. T. Hessels +3
We present a phase-coherent timing analysis of the intermittent accreting millisecond pulsar SAX J1748.9-2021. A new timing solution for the pulsar spin period and the Keplerian bi…
Discovery of coherent millisecond X-ray pulsations in Aql X-1
P. Casella, D. Altamirano, A. Patruno +2
We report the discovery of an episode of coherent millisecond X-ray pulsation in the neutron star low-mass X-ray binary Aql X-1. The episode lasts for slightly more than 150 second…
The Island state of the Atoll Source 4U 1820--30
Diego Altamirano, M. van der Klis, M. Méndez +4
We study the rapid X-ray time variability in all public data available from the \textit{Rossi X-ray Timing Explorer's} Proportional Counter Array on the atoll source 4U 1820--30 in…
X-ray spectral and timing properties of the 2001 superburst of 4U 1636-536
Erik Kuulkers, Jean in 't Zand, Jeroen Homan +3
Preliminary results are reported on the spectral and timing properties of the spectacular 2001 superburst of 4U 1636-536 as seen by the RXTE/PCA. The (broad-band) power-spectral an…