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Model X-ray spectra of magnetic neutron stars with hydrogen atmospheres

Model X-ray spectra of magnetic neutron stars with hydrogen atmospheres
Model X-ray spectra of magnetic neutron stars with hydrogen atmospheres
We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with fixed surface fields between B = 1012 and 2 × 1013 G and effective temperatures log Teff = 5.5–6.8, as well as with surface B and Teff distributions around these values. The models are based on the latest equation of state and opacity results for magnetized partially ionized hydrogen plasmas. The atmospheres directly determine the characteristics of thermal emission from the surface of neutron stars. We also incorporate these model spectra into XSPEC, under the model name NSMAX, thus allowing them to be used by the community to fit X-ray observations of neutron stars.
radiative transfer, stars, atmospheres, magnetic fields, neutron, x-rays
0067-0049
102-109
Ho, Wynn C.G.
d78d4c52-8f92-4846-876f-e04a8f803a45
Potekhin, Alexander Y.
b9551650-f6ed-4c4f-b53c-d019cccc49fa
Chabrier, Gilles
95efa689-95ef-4fc0-8e14-9381ea796384
Ho, Wynn C.G.
d78d4c52-8f92-4846-876f-e04a8f803a45
Potekhin, Alexander Y.
b9551650-f6ed-4c4f-b53c-d019cccc49fa
Chabrier, Gilles
95efa689-95ef-4fc0-8e14-9381ea796384

Ho, Wynn C.G., Potekhin, Alexander Y. and Chabrier, Gilles (2008) Model X-ray spectra of magnetic neutron stars with hydrogen atmospheres. The Astrophysical Journal Supplement Series, 178 (1), 102-109. (doi:10.1086/589238).

Record type: Article

Abstract

We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with fixed surface fields between B = 1012 and 2 × 1013 G and effective temperatures log Teff = 5.5–6.8, as well as with surface B and Teff distributions around these values. The models are based on the latest equation of state and opacity results for magnetized partially ionized hydrogen plasmas. The atmospheres directly determine the characteristics of thermal emission from the surface of neutron stars. We also incorporate these model spectra into XSPEC, under the model name NSMAX, thus allowing them to be used by the community to fit X-ray observations of neutron stars.

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More information

Published date: September 2008
Keywords: radiative transfer, stars, atmospheres, magnetic fields, neutron, x-rays

Identifiers

Local EPrints ID: 182215
URI: http://eprints.soton.ac.uk/id/eprint/182215
ISSN: 0067-0049
PURE UUID: b0727a46-69c0-4a73-8790-b68de650278b
ORCID for Wynn C.G. Ho: ORCID iD orcid.org/0000-0002-6089-6836

Catalogue record

Date deposited: 27 Apr 2011 10:27
Last modified: 09 Jan 2022 03:30

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Contributors

Author: Wynn C.G. Ho ORCID iD
Author: Alexander Y. Potekhin
Author: Gilles Chabrier

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