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X-ray Spectroscopy of Thermally Emitting Neutron Stars | | M. H. van Kerkwijk
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15 Oct 2003 | | Journal: | IAU Symp. 218 (2004) 283-288 | | Subject: | astro-ph | | Affiliation: | Univ. of Toronto | | Abstract: | I describe recent high-resolution X-ray spectroscopy of surface emission from nearby, thermally emitting neutron stars. I focus on RX J0720.4-3125, RX J1308.6+2127, and RX J1605.3+3249, all of which have similar temperature, but differ in the presence and strength of absorption features in their spectra. I discuss possible causes for the absorption we see in two sources, and conclude that it may be proton cyclotron line absorption, but weakened due to the strong-field quantum electrodynamics effect of vacuum resonance mode conversion. | | Source: | arXiv, astro-ph/0310389 | | Services: | Forum | Review | PDF | Favorites | |
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