Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sf2a.conf..209w&link_type=abstract
SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: D. Barret, F. Casoli, G.
Astronomy and Astrophysics
Astrophysics
Scientific paper
Globular clusters are thought to harbour a large number of compact binaries that could be responsible for delaying the inevitable core collapse of these dense clusters. Compact binaries and their progeny were previously elusive in the optical domain because of the high stellar densities. Observing these clusters in X-rays, where in such a domain the compact binaries are bright, diminishes the over-crowding problem. We present observations of seven Galactic globular clusters that we have made with XMM-Newton, along with follow-up optical photometry and spectroscopy made with the Very Large Telescope (VLT). We will discuss the populations of neutron star low mass X-ray binaries and their descendants (millisecond pulsars), cataclysmic variables, active binaries, as well as other objects that we have identified in these clusters. We also explore the formation mechanisms of these systems and their use in tracing the dynamical history of these clusters
Barret Dider
Servillat Mathieu
Webb Natalie A.
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