Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005tsra.conf..319p&link_type=abstract
TEXAS IN TUSCANY. Proceedings of the XXI Symposium on Relativistic Astrophysics. Held 9-13 December 2002 in Florence, Italy. Edi
Astronomy and Astrophysics
Astrophysics
Scientific paper
Observations of thermal radiation from neutron stars allow one to measure the surface temperatures and confront them with cooling scenarios. Detection of gravitationally redshifted spectral lines can yield the mass-to-radius ratio. In the few cases when the distance is known, one can measure the neutron star radius, which is particularly important to constrain the equation of state of the superdense matter in the neutron star interiors. Finally, one can infer the chemical composition of the neutron star surface layers, which provides information about formation of neutron stars and their interaction with the environments. We present the observational results on thermal radiation from active pulsars and radio-quiet neutron stars, with emphasis on the results obtained with the Chandra X-ray Observatory and discuss some implications of these results.
Pavlov George G.
Zavlin Vyacheslav E.
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