Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..984...43h&link_type=abstract
HIGH TIME RESOLUTION ASTROPHYSICS: The Universe at Sub-Second Timescales. AIP Conference Proceedings, Volume 984, pp. 43-50 (20
Astronomy and Astrophysics
Astrophysics
Neutron Stars, Astronomical Observations, Equations Of State, Observation And Data Reduction Techniques, Computer Modeling And Simulation
Scientific paper
Recent observations by XMM-Newton detected modulations in the total brightness and in the spectrum of several neutron stars, with variations on <~1 second timescales due to the rapid rotation of these stars. To properly interpret the data, accurate modeling of neutron star emission is necessary. Detailed analysis of the shape and strength of the rotational variations allows a measurement of the surface composition and magnetic field, as well as constrains the nuclear equation of state. We discuss our models of the spectra and light curves of two of the most observed neutron stars, RX J1856.5-3754 and 1E 1207.4-5209, and discuss some implications of our results.
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