X-ray spectra from convective photospheres of neutron stars.

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Neutron Stars: Stellar Photospheres, Neutron Stars: X-Ray Spectra

Scientific paper

The authors present first results of modeling convective photospheres of neutron stars. They show that in photospheres composed of the light elements convection arises only at relatively low effective temperatures (⪉(3-5)×104K), whereas in the case of iron composition it arises at Teff ⪉ 3×105K. Convection changes the depth dependence of the photosphere temperature and the shapes of the emergent spectra. Thus, it should be taken into account for the proper interpretation of EUV/soft-X-ray observations of the thermal radiation from neutron stars.

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