278 citations · 6.8k across the 175 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…
A parsec scale X-ray extended structure from the X-ray binary Circinus X-1
P. Soleri, S. Heinz, R. Fender +8
We present the results of the analysis of two Chandra observations of Circinus X-1 performed in 2007, for a total exposure time of ~50 ks. The source was observed with the High Res…
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…