Year: 2003
Type: article
Abstract: It has been predicted that quark and hybrid stars, containing strange quark matter in their core, have a significantly smaller radius than ordinary neutron stars. Preliminary x-ray observations of isolated neutron stars indicated a surprisingly small radius consistent with quark matter in the interior of the star. However, a new analysis of the data led to a radius corresponding to an ordinary neutron star. In the present paper we will discuss theoretical calculations of the mass–radius relation for quark and hybrid stars, taking into account medium effects in quark matter, and report on recent x-ray observations by Chandra and XMM and their latest interpretation.
Authors: Markus H Thoma, Joachim Trümper, Vadim Burwitz
Institution: Max Planck Institute for Extraterrestrial Physics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1971818227