@misc{ba00bba0ccc74f2f8461d6398a5264a6,
title = "Swift follow-up of the newly discovered burster millisecond pulsar IGR J17511-3057",
abstract = "Following the discovery of the new hard X-ray transient IGR J17511-3057 by INTEGRAL (Atel \#2196) and its classification as a millisecond pulsar by RXTE (Atel \#2197), a Swift ToO was performed. Swift/XRT observed IGR J17511-3057 on 2009-09-13 at 19:53:31 for a total exposure time of 4 ks. The first 2.5 ks were accumulated in window timing (WT) mode. A thermonuclear type-I X-ray burst was discovered in the WT light curve of the source at 2009-09-14 00:51:37 UTC with an exponential decay time of \textasciitilde{}12.5 s. This burst is most likely a He burst. The WT 0.5-10 keV X-ray spectrum is well described (reduced chi\textasciicircum{}2 of 1.08 for 283 dof) by applying an absorbed cut-off power-law model. We obtained an absorption column density of (0.6+/-0.1)E22 cm\textasciicircum{}(-2), compatible with the Galactic absorption in the direction of the source, a cut-off energy of 3.3+/-0.6 keV, and a power-law photon index of 0.2+/-0.2. The absorbed 0.5-10 keV X-ray flux is 6.0e-10 ergs/cm\textasciicircum{}2/s.",
keywords = "Transients, X-ray, Neutron Stars",
author = "E. Bozzo and C. Ferrigno and E. Kuulkers and M. Falanga and J. Chenevez and S. Brandt and V. Beckmann and A. Bird and A. Domingo and K. Ebisawa and P. Jonker and P. Kretschmar and C. Markwardt and T. Oosterbroek and A. Paizis and D. Risquez and C. Sanchez-Fernandez and S. Shaw and R. Wijnands",
year = "2009",
language = "English",
series = "The Astronomer´s Telegram",
publisher = "R. Rutledge",
number = "ATel \#2198",
type = "Other",
}