Constraining MSP Interiors through Rotochemical Heating

Details Constraining MSP Interiors through Rotochemical Heating Constraining MSP Interiors through Rotochemical Heating

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..328..323f&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

Scientific paper

Rotochemical heating originates in a departure from beta equilibrium in a rotating neutron star due to spin-down compression, the effect being strongest for millisecond pulsars (MSPs). The main consequence is the evolution in ˜ 108 yr to a quasi-stationary state, in which the surface temperature depends only on the current spin-down power dot{E}=IΩ dot{Ω}. Assuming no superfluidity, we find that the surface temperature is related to the spin-down power in the form of a power law. Moreover, the exponent depends only on the neutrino emission process assumed. Our simulations agree well with the recent detection of possible UV thermal radiation from a millisecond pulsar (Kargaltsev, Pavlov & Romani 2004, ApJ, 602, 327).

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