Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2010-05-19
Physical Review Letters 104(2010)241102
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
5 pages, 1 figures, accepted for publication in Phys. Rev. Lett. Text is shortened to fit PRL limit
Scientific paper
10.1103/PhysRevLett.104.241102
The high-redshift gamma-ray bursts (GRBs), GRBs 080913 and 090423, challenge the conventional GRB progenitor models by their short durations, typical for short GRBs, and their high energy releases, typical for long GRBs. Meanwhile, the GRB rate inferred from high-redshift GRBs also remarkably exceeds the prediction of the collapsar model, with an ordinary star formation history. We show that all these contradictions could be eliminated naturally, if we ascribe some high-redshift GRBs to electromagnetic bursts of superconducting cosmic strings. High-redshift GRBs could become a reasonable way to test the superconducting cosmic string model, because the event rate of cosmic string bursts increases rapidly with increasing redshifts, whereas the collapsar rate decreases.
Cheng Kwong Sang
Harko Tiberiu
Yu Yun-Wei
No associations
LandOfFree
High Redshift Gamma-Ray Bursts: Observational Signatures of Superconducting Cosmic Strings? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High Redshift Gamma-Ray Bursts: Observational Signatures of Superconducting Cosmic Strings?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Redshift Gamma-Ray Bursts: Observational Signatures of Superconducting Cosmic Strings? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-479637