Speaker
Description
Strange quark stars are hypothetical objects composed of strange quark matter (SQM). SQM is unstable on the star's surface. Oscillations of strange stars, including radial oscillations, can very efficiently lead to the release of energy. Such oscillations could be excited in compact binary star systems due to tidal forces. The excitation energy depends on both the mass of the strange star and the amplitude of the oscillations. For a star with a mass of 1.4 solar masses and a radius of approximately 10 km, oscillations of about 0.1% of the radius will release energy on the order of 10^45 ergs. This energy is immediately converted into electromagnetic energy. Astrophysically, the most interesting questions are how much of this energy is radiated, over what time period, and in what form. This is a complex issue, as part of the energy is certainly absorbed by the star's layers, and some may be radiated in the form of neutrinos. The entire star could also undergo fragmentation. However, a portion of the energy will certainly be radiated in the form of ultra-high-energy photons, which can also initiate the creation of high-energy charged particles.
