Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...433l..37t&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 433, no. 1, p. L37-L40
Astronomy and Astrophysics
Astronomy
44
B Stars, Companion Stars, Emission Spectra, Gamma Ray Spectra, Pulsars, Shock Wave Interaction, Stellar Envelopes, Stellar Winds, X Ray Spectra, Astronomical Spectroscopy, Eccentric Orbits, Gamma Ray Astronomy, Stellar Orbits, Stellar Spectra, Time Dependence, X Ray Astronomy
Scientific paper
PSR B1259-63 is a 47 ms radio pulsar in a wide, eccentric orbit with a Be star. We study the shock interaction between the pulsar and the companion's mass outflow and investigate the time evolution of radiative shock regimes. We find that for small values of the Be star's mass-loss rate, inverse-Compton scattering is likely to dominate the shock emission. Alternately, for a large mass-loss rate, synchrotron emission will dominate. Multifrequency X-ray and gamma-ray observations near periastron can distinguish between these cases and yield unique constraints on the pulsar and Be star winds. The PSR B1259-63 system provides a unique laboratory to study the time-dependent interaction of a pulsar wind with the circumbinary material from its companion star.
Arons Jonathan
Kaspi Victoria M.
Tavani Marco
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