2006/05/31 by Anbo Chen, Tianhong Yu, Renxin Xu · 1 citation
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Cosmic microwave background #Cosmic ray #Gamma-ray bursts and supernovae #Neutrino #Neutron star #Nuclear physics #Photon #Physics #Pulsars and Gravitational Waves Research #Quark #Quark star #Stars #Strange matter #Strange quark #Supernova #astro-ph #hep-ph
paper · pdf · doi:10.1086/522777
13 pages, 3 figures, last version accepted to ApJ Letters
arxiv created 2007/08/26 · openalex publication_date 2007/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In this Letter we propose a possible mechanism for trying to alleviate the current difficulty in core-collapse supernovae by forming a strange quark star inside the collapsing core. Although the initial long-time cooling behavior of nascent strange stars is dominated by neutrino emissions, thermal emissions including photons and e ± pair plasma do play a significant role in the explosion dynamics in this scenario. The key to promoting a successful shock outside a bare strange star is more likely to be the radiation pressure caused by thermal photons rather than neutrinos in conventional models. We observed through calculation that radiation pressure can push the overlying mantle away through photon-electron scattering with energy (the work done by radiation pressure) as much as ~10 51 ergs if protoquark stars are born with temperatures higher than ~30-40 MeV. This result not only indicates that strange quark stars are bare since their formations, it could also provide a possible explanation for the formation of fireballs in cosmic long-soft γ-ray bursts associated with supernovae.