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Recycling Pulsars: spins, masses and ages

Published online by Cambridge University Press:  20 March 2013

T. M. Tauris ,
M. Kramer  and
N. Langer
T. M. Tauris*
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Germany Max-Planck Institut für Radioastronomie, Bonn, Germany
M. Kramer
Affiliation:
Max-Planck Institut für Radioastronomie, Bonn, Germany
N. Langer
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Germany
*
*email: tauris@astro.uni-bonn.de
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Abstract

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Although the first millisecond pulsars (MSPs) were discovered 30 years ago we still do not understand all details of their formation process. Here, we present new results from Tauris, Langer & Kramer (2012) on the recycling scenario leading to radio MSPs with helium or carbon-oxygen white dwarf companions via evolution of low- and intermediate mass X-ray binaries (LMXBs, IMXBs). We discuss the location of the spin-up line in the PṖ–diagram and estimate the amount of accreted mass needed to obtain a given spin period and compare with observations. Finally, we constrain the true ages of observed recycled pulsars via calculated isochrones in the PṖ–diagram.

Keywords

stars: neutronpulsars: generalwhite dwarfsX-rays: binaries

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