X-ray sources and their optical counterparts in the globular cluster M 22
arXiv:astro-ph/0405571 · doi:10.1051/0004-6361:20040399
Abstract
Using XMM-Newton EPIC imaging data, we have detected 50 low-luminosity X-ray sources in the field of view of M 22, where 5 +/- 3 of these sources are likely to be related to the cluster. Using differential optical photometry, we have identified probable counterparts to those sources belonging to the cluster. Using X-ray spectroscopic and timing studies, supported by the optical colours, we propose that the most central X-ray sources in the cluster are cataclysmic variables, millisecond pulsars, active binaries and a blue straggler. We also identify a cluster of galaxies behind this globular cluster.
11 pages, 7 figures, accepted for publication in A&A
References in corpus (11)
- Dynamical Formation of Close Binary Systems in Globular Clusters
- Cataclysmic Variables from SDSS II. The Second Year
- Parallax and Distance Estimates for Fourteen Cataclysmic Variable Stars
- A broad absorption feature in the X-ray spectrum of the isolated neutron star RBS1223 (1RXS J130848.6+212708)
- An Extensive Census of HST Counterparts to Chandra X-ray Sources in the Globular Cluster 47 Tucanae. I. Astrometry and Photometry
- Discovery of a quiescent neutron star binary in the globular cluster M13
- The Peculiar X-ray Transient IGR 16358-4726
- Wide Field Photometry of the Galactic Globular Cluster M22
- A Chandra X-ray Study of the Globular Cluster M80
- Hard X-ray Emission Associated with White Dwarfs
- XMM-Newton spectral and timing analysis of the faint millisecond pulsars PSR J0751+1807 and PSR J1012+5307
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- A stellar census in globular clusters with MUSE: A spectral catalogue of emission-line sources
- Cluster AgeS Experiment (CASE): Deficiency of observed dwarf novae in globular clusters
- A Blue Straggler Binary System with at least Three Progenitors in the Core of a Globular Cluster?
- Multiple Outbursts of a Cataclysmic Variable in the Globular Cluster M22
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- CV1 in the globular cluster M 22: confirming its nature through X-ray observations and optical spectroscopy
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- Neutron Stars and Black Holes in Star Clusters
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