http://www.cnr.it/ontology/cnr/individuo/prodotto/ID5718
Gamma-Ray Bursts from Delayed Collapse of Neutron Stars to Quark Matter Stars (Articolo in rivista)
- Type
- Label
- Gamma-Ray Bursts from Delayed Collapse of Neutron Stars to Quark Matter Stars (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
Berezhiani Z., Bombaci I., Drago A., Frontera F., Lavagno A. (2003)
Gamma-Ray Bursts from Delayed Collapse of Neutron Stars to Quark Matter Stars
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Berezhiani Z., Bombaci I., Drago A., Frontera F., Lavagno A. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Note
- ISI Web of Science (WOS) (literal)
- Titolo
- Gamma-Ray Bursts from Delayed Collapse of Neutron Stars to Quark Matter Stars (literal)
- Abstract
- 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 10^{52}-10^{53}
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. (literal)
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