Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..328..117d&link_type=abstract
Binary Radio Pulsars, ASP Conference Series, Vol. 328, Proceedings of the conference held 11-17 January, 2004, Aspen, Colorado,
Astronomy and Astrophysics
Astronomy
1
Scientific paper
The observed characteristics of the PSR J0737-3039 system appear to confirm the ``standard'' evolutionary model for the formation of close double neutron stars. In this model the immediate progenitor of the double neutron star was a very close binary consisting of a helium star and a neutron star, which in turn descended from a wide X-ray binary consisting of a Be star and a neutron star. The helium star was the immediate progenitor of the pulsar B in the system, whereas the pulsar A was the first-born neutron star, which underwent a complex history with accretion of mass and angular momentum, first from the Be star and later, by Roche-lobe overflow, from the helium star. This accretion made its magnetic field decay and caused its spin to become very rapid. Pulsar B, being the second-born neutron star, never underwent accretion and resembles, as expected, the ``normal'' single strong-magnetic-field pulsars in the Galaxy.
Dewi Jasinta D. M.
van den Heuvel Edward Peter Jacobus
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