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EnglishTwo classes of neutron stars may exist in the galactic halo: neutron stars originating in the disk with high velocities and neutron stars originating in globular clusters (via Type II supernovae and/or accretion induced collapse). Moreover, the halo dark matter is likely in the form of dark clusters composed of MACHOs and cold molecular clouds. Here we propose a model in which neutron stars crossing dark clusters in the galactic halo accrete material and emit in the X-ray band. The detection of these X-ray sources whose luminosity can span several orders of magnitude from 1033 to 1037 erg s−1 could be already done by ROSAT.
| Titolo: | X-Ray Emission from Neutron Stars in Dark Clusters |
| Autori: | |
| Data di pubblicazione: | 1997 |
| Rivista: | |
| Abstract: | Two classes of neutron stars may exist in the galactic halo: neutron stars originating in the disk with high velocities and neutron stars originating in globular clusters (via Type II supernovae and/or accretion induced collapse). Moreover, the halo dark matter is likely in the form of dark clusters composed of MACHOs and cold molecular clouds. Here we propose a model in which neutron stars crossing dark clusters in the galactic halo accrete material and emit in the X-ray band. The detection of these X-ray sources whose luminosity can span several orders of magnitude from 1033 to 1037 erg s−1 could be already done by ROSAT. |
| Handle: | http://hdl.handle.net/11587/106839 |
| Appare nelle tipologie: | Articolo pubblicato su Rivista |
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