Deconfinement signals from pulsar timing
Astrophysics
2007-05-23 v1
Abstract
The occurence of a quark matter core in rotating compact stars has been investigated within general relativity as a function of both the rotational frequency and the total baryon number. We demonstrate that the deviation of the braking index from signals not only the occurence but also the size of a quark matter core in a pulsar. We suggest that in systems with mass accretion onto a rapidly rotating compact star a spin-down to spin-up transition might signal a deconfinement transition in its interior.
Keywords
Cite
@article{arxiv.astro-ph/9911341,
title = {Deconfinement signals from pulsar timing},
author = {H. Grigorian and G. Poghosyan and E. Chubarian and D. Blaschke},
journal= {arXiv preprint arXiv:astro-ph/9911341},
year = {2007}
}
Comments
2 pages, 2 eps figures embedded, to be published in Proceedings of IAU Coll. 177: "Pulsar Astronomy - 2000 and Beyond", ASP Conf. Series