The hyperon neutron star mean-field modelI. Bednarek and R. Manka
Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia - Uniwersytecka 4, PL-40-007 Katowice, Poland
received 18 September 2006; accepted in final form 15 March 2007; published May 2007
published online 18 April 2007
The properties of strange neutron stars have been studied with the use of the parameter sets stemming from the effective field theory. The impact of the strength of hyperon interactions on neutron star masses has been analyzed. The inclusion of additional nonlinear meson interaction terms together with the strong hyperon-hyperon interaction leads to the existence of additional stable stellar configurations.
26.60.+c - Nuclear matter aspects of neutron stars.
© Europhysics Letters Association 2007