PSR J1012+5307: younger than it looks?

Details PSR J1012+5307: younger than it looks? PSR J1012+5307: younger than it looks?

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.300.1127b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 300, Issue 4, pp. 1127-1130.

Astronomy and Astrophysics

Astronomy

8

Binaries: Close, Stars: Magnetic Fields, Stars: Neutron, Pulsars: Individual: Psr J1012+5307, X-Rays: Stars

Scientific paper

Lorimer et al. have recently reported that the spin-down age (~7x10^9yr) of the low-mass binary pulsar PSR J1012+5307 is much higher than the cooling age (3x10^8yr) of its white dwarf companion. The proposed solutions for this discrepancy are outlined and discussed. In particular, the revised cooling age estimate proposed by Alberts et al. agrees with data from other low-mass binary pulsar systems if a transition to the `classical' cooling regime occurs between ~0.14 and ~0.28M_solar. If this transition is excluded, PSR J1012+5307 seems to have finished its accretion phase far from the spin-up line.

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