Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538804k&link_type=abstract
American Astronomical Society, AAS Meeting #215, #388.04; Bulletin of the American Astronomical Society, Vol. 42, p.604
Astronomy and Astrophysics
Astronomy
Scientific paper
The eight millisecond pulsars (MSPs) that have now been detected by Fermi-LAT are providing an excellent opportunity to probe the emission geometry of these ancient compact objects. As they are radio-loud, one may use the relative phase lags across wavebands to obtain constraints on the orientation and size of their radio and gamma-ray beams. We model the MSP light curves using geometric slot gap (SG), outer gap (OG), and polar cap (PC) models, in addition to a pair-starved polar cap (PSPC) model which incorporates the full General Relativistic E-field. We find that the MSPs are either fit by SG / OG or PSPC models, and we deduce values for inclination and observer angles in each case.
Guillemot Lucas
Kust Harding Alice
Venter Christo
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