Magnetized Atmospheres around Accreting Neutron Stars

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dc.creatorZane, S.
dc.creatorTurolla, R.
dc.creatorTreves, A.
dc.date2000-02-01
dc.date.accessioned2026-07-07T01:52:02Z
dc.date.available2026-07-07T01:52:02Z
dc.descriptionWe present a detailed investigation of atmospheres around accreting neutron stars with high magnetic field ($B\gtrsim 10^{12}$ G) and low luminosity ($L\lesssim 10^{33}$ erg/s). We compute the atmospheric structure, intensity and emergent spectrum for a plane-parallel, pure hydrogen medium by solving the transfer equations for the normal modes coupled to the hydrostatic and energy balance equations. The hard tail found in previous investigations for accreting, non-magnetic neutron stars with comparable luminosity is suppressed and the X-ray spectrum, although still harder than a blackbody at the star effective temperature, is nearly planckian in shape. Spectra from accreting atmospheres, both with high and low fields, are found to exhibit a significant excess at optical wavelengths above the Rayleigh-Jeans tail of the X-ray continuum.
dc.description23 pages Latex with 8 ps figures. Accepted for publication in the Astrophysical Journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0002019
dc.identifierhttp://arxiv.org/abs/astro-ph/0002019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/488
dc.subjectAstrophysics
dc.titleMagnetized Atmospheres around Accreting Neutron Stars
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