| Issue |
EPJ Web of Conferences
Volume 64, 2014
Physics at the Magnetospheric Boundary
|
|
|---|---|---|
| Article Number | 06006 | |
| Number of page(s) | 4 | |
| Section | Observations of Compact Objects (Part 1) | |
| DOI | https://doi.org/10.1051/epjconf/20136406006 | |
| Published online | 08 January 2014 | |
https://doi.org/10.1051/epjconf/20136406006
The reflection component in NS LMXBs
1 Dipartimento di Fisica e Chimica, via Archirafi 36, 90123 Palermo, Italy
2 ICE, IEEC-CSIC, Barcelona, Spain
3 INAF Osservatorio Astronomico di Cagliari, Italy
4 INAF-IASF di Palermo, Italy
a e-mail: antonino.dai@unipa.it
Published online: 8 January 2014
Thanks to the good spectral resolution and large effective area of the EPIC/PN instrument on board of XMM-Newton, we have at hand a large number of observations of accreting low-mass X-ray binaries, that allow for the fist time a comprehensive view on the characteristics of the reflection component at different accretion regimes and to probe the effects of a magnetosphere on its formation. We focus here on a comparative analysis of the reflection component from a series of spectroscopic studies on selected sources: 4U 1705-44, observed both in the soft and hard state, the pulsating ms pulsars SAX J1808.4-3658 and IGR J17511-3057, and the intermittent pulsar HETE J1900-2455. Although the sources can present very similar accretion rates and continuum shapes, the reflection parameters do not generally result the same, moreover the effect of a magnetosphere on the formation of the reflection component appears elusive.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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