2001/05/31 by Rachid Ouyed, R. Ouyed, J. Dey +2 · 10 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Bottom quark #Compact star #Down quark #Exotic star #Gamma-ray bursts and supernovae #Neutron star #Nuclear physics #Particle physics #Physics #Pulsars and Gravitational Waves Research #Quark #Quark star #Strange matter #Strange quark #Top quark #Up quark #astro-ph
paper · pdf · doi:10.1051/0004-6361:20020982
4 pages, 2 figures, shortened title. Major changes in the text, version to appear in Astronomy&Astrophysics
arxiv created 2002/07/01 · openalex publication_date 2002/08/01 · arxiv updated 2009/12/01 · openalex created_date 2019/07/30 · openalex updated_date 2026/08/05
We explore the scenario where the core of a neutron star (having experienced a transition to an up and down quark phase) shrinks into the equilibrated quark object after reaching strange quark matter saturation density (where a composition of up, down and strange quarks is the favored state of matter). The overlaying (envelope) material free-falls following the core contraction releasing upto in energy as radiation, partly as a result of the conversion of envelope material to quarks. This phenomena, we named Quark-Nova, leads to a wide variety of ejectae ranging form the Newtonian, “dirty" to the ultra-relativistic fireball. The mass range of the corresponding compact remnant (the quark star) ranges from less than up to a solar mass. We discuss the connection between Quark-Novae and Gamma ray bursts and suggest the recently studied GRB011211 event as a plausible Quark-Nova candidate.