169 citations · 419 across the 6 of their papers we have counts for
8 papers
Type I X-ray Bursts from the Neutron-star Transient XTE J1701-462
Dacheng Lin, Diego Altamirano, Jeroen Homan +3
The neutron-star X-ray transient XTE J1701-462 was observed for 3 Ms with \xte during its 2006-2007 outburst. Here we report on the discovery of three type-I X-ray bursts fro…
SAX J1808.4-3658: high resolution spectroscopy and decrease of pulsed fraction at low energies
Alessandro Patruno, Nanda Rea, Diego Altamirano +3
XMM-Newton observed the accreting millisecond pulsar SAX J1808.4-3658 during its 2008 outburst. We present timing and spectral analyses of this observation, in particular the first…
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…