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Rapidly rotating strange stars

Published online by Cambridge University Press:  12 April 2016

D. Gondek-Rosińska ,
P. Haensel ,
J. L. Zdunik  and
E. Gourgoulhon
D. Gondek-Rosińska
Affiliation:
Copernicus Astronomical Center, Bartycka 18, Warszawa, Poland
P. Haensel
Affiliation:
Copernicus Astronomical Center, Bartycka 18, Warszawa, Poland
J. L. Zdunik
Affiliation:
Copernicus Astronomical Center, Bartycka 18, Warszawa, Poland
E. Gourgoulhon
Affiliation:
DARC, CNRS, Observatoire de Paris, F-92195 Meudon Cedex, France

Abstract

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We study effects of the strange quark mass, ms, and of the QCD interactions, calculated to lowest order in αc, on the rapid rotation of strange stars (SS). The influence of rotation on global parameters of SS is greater than in the case of the neutron stars (NS). We show that independently of ms and αc the ratio of the rotational kinetic energy to the absolute value of the gravitational potential energy T/W for a rotating SS is significantly higher than for an ordinary NS. This might indicate that rapidly rotating SS could be important sources of gravitational waves.

Type
Part 9. Population and Neutron Star Properties
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 661 - 662
Copyright
Copyright © Astronomical Society of the Pacific 2000