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Recycling NSs to ultrashort periods: a statistical analysis of their evolution in the μ – P plane

Published online by Cambridge University Press:  12 April 2016

Andrea Possenti ,
Monica Colpi ,
Ulrich Geppert ,
Luciano Burderi  and
Nichi D’Amico
Andrea Possenti
Affiliation:
Dip. Astronomia dell’Università, via Ranzani 1, 40127 Bologna, Italy
Monica Colpi
Affiliation:
Dip. Fisica Mi-Bicocca, P.za della Scienza 3, 20126 Milano, Italy
Ulrich Geppert
Affiliation:
AIP, An der Sternwarte 16, 14482 Potsdam, Germany
Luciano Burderi
Affiliation:
Oss. Astronomico di Monteporzio, via Frascati 33, 00044 Roma, Italy
Nichi D’Amico
Affiliation:
Oss. Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy

Abstract

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We investigate the statistical evolution of magnetic neutron stars recycled in Low Mass Binary (LMB) systems, simulating synthetic populations. Irrespective to the details of the physical models, we find to be significant the fraction of neutron stars spinning close to their mass shedding limit relative to the millisecond pulsar population. The simulated neutron stars show a tail in their period distribution at periods shorter than 1.558 ms, the minimum detected so far. Crustal magnetic field decay models predict also the existence of massive rapidly spinning neutron stars with very low magnetic moment.

Type
Part 9. Population and Neutron Star Properties
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 585 - 588
Copyright
Copyright © Astronomical Society of the Pacific 2000

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