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Thermal emission from low-field neutron stars | | B.T. Gaensicke
; T.M. Braje
; R.W. Romani
; | | Date: |
5 Oct 2001 | | Journal: | 2002, A&A 386, 1001 | | Subject: | astro-ph | | Abstract: | We present a new grid of LTE model atmospheres for weakly magnetic (B<=10e10G) neutron stars, using opacity and equation of state data from the OPAL project and employing a fully frequency- and angle-dependent radiation transfer. We discuss the differences from earlier models, including a comparison with a detailed NLTE calculation. We suggest heating of the outer layers of the neutron star atmosphere as an explanation for the featureless X-ray spectra of RX J1856.5-3754 and RX J0720.4-3125 recently observed with Chandra and XMM. | | Source: | arXiv, astro-ph/0110130 | | Services: | Forum | Review | PDF | Favorites | |
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