XSPEC Models of Magnetic Neutron Stars with Hydrogen and Mid-Z Element Atmospheres

Details XSPEC Models of Magnetic Neutron Stars with Hydrogen and Mid-Z Element Atmospheres XSPEC Models of Magnetic Neutron Stars with Hydrogen and Mid-Z Element Atmospheres

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21343609h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #436.09; Bulletin of the American Astronomical Society, Vol. 41, p.308

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We construct partially ionized hydrogen and mid-Z element atmosphere models for magnetized neutron stars in radiative equilibrium with fixed surface fields between B = 1012 and 2x1013 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 or mid-Z element 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.
This work is supported by NASA, FASI, RFBR, and CNRS.

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