Speaker
Description
We study the influence of hyperons on neutron star mergers. Using a large sample of hyperonic equations of state, we make a systematic analysis of the effects triggered by the appearance of hyperons. A characteristic increase of the dominant post-merger gravitational wave frequency by a few per cent is directly linked to the appearance of thermal hyperons in matter. We also find that during the post-merger phase of the binary neutron star collision, the average temperature is lower and the maximum density of the hot medium is higher when they are present in matter. In addition, we also study the hyperonic imprints onto the ejected mass and the threshold mass before collapse. Our findings are of special interest as a venue for addressing the fundamental question of whether strangeness is present in ultra-dense and hot matter.
