Gamma-Ray Bursts from Delayed Collapse of Neutron Stars to Quark Matter Stars
By Z. Berezhiani, I. Bombaci, A. Drago, Federico Frontera, A. L. U. O. L'Aquila, I. Sasso, Italy, University, I. Pisa, Infn Ferrara and 4 more. 2002
140 citations recorded by the source corpus.
We propose a model to explain how a gamma-ray burst can take place days or years after a supernova explosion. Our model is based on the conversion of a pure hadronic star (neutron star) into a star made at least in part of deconfined quark matter. The conversion process can be delayed if the surface tension at the interface between hadronic and deconfined quark matter phases is taken into account. The nucleation time (i.e., the time to form a critical-size drop of quark matter) can be extremely long if the mass of the star is small. Via mass accretion the nucleation time can be dramatically reduced and the star is finally converted into the stable configuration. A huge amount of energy, on the order of 1052-1053 ergs, is released during the conversion process and can produce a powerful gamma-ray burst. The delay between the supernova explosion generating the metastable neutron star and the new collapse can explain the delay inferred in GRB 990705 and in GRB 011211.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/1ae6400f959e4c03aabf5cfe4777dd687a520152
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Citations in the corpus
- Quark Deconfinement and Implications for the Radius and the Limiting Mass of Compact Stars (2004, methodology): “In a recent paper Berezhiani et al. (2003) have given a simple and natural interpretation of the delayed supernovaGRB connection in terms of the stellar conversion model (hereafter the quark deconfinement nova) discussed in the present work.”
- Short-hard gamma-ray bursts (2007, unknown): “…1996; Cheng & Dai, 1996; Fryer & Woosley, 1998; Dai & Lu, 1998b; Dar, 1999; Bombaci & Datta, 2000; Ouyed & Sannino, 2002; Ouyed, Dey & Dey, 2002; Berezhiani et al. , 2003; Bombaci, Parenti & Vidaña, 39 see Woods & Thompson (2006) for a review of Galactic magnetars 2004; Bombaci, 2005;…”
- INTERACTING QUARK MATTER EQUATION OF STATE FOR COMPACT STARS (2013, unknown): “…et al. 1986; Haensel et al. 1986), and has since been employed in most investigations of hybrid and quark stars as well as core collapse supernovae (Berezhiani et al. 2003; Alford et al. 2005, 2007; Drago et al. 2007, 2013; Mintz et al. 2010; Fischer et al. 2011; Ozel et al. 2010; Weissenborn et…”