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Updated: Jul 17, 2026
10:52
A High-content Imaging Workflow to Study Grb2 Signaling Complexes by Expression Cloning
Published on: October 30, 2012
Observations of GRBs at high redshift.
Nial R Tanvir1, Páll Jakobsson
1Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK. nrt3@star.le.ac.uk
Summary
Gamma-ray bursts (GRBs) are detectable at high redshifts, offering insights into the early Universe. Their observed distribution suggests they can probe cosmic reionization and star formation history.
Area of Science:
- Cosmology
- Astrophysics
Background:
- Gamma-ray bursts (GRBs) are highly luminous events detectable across vast cosmic distances.
- Their extreme luminosity allows for potential observation at very high redshifts, probing the early Universe.
Purpose of the Study:
- To determine the redshift distribution of Swift-detected GRBs.
- To assess the potential of GRBs as probes of the Epoch of Reionization.
- To explore GRBs' utility in constraining cosmic star-formation history and cosmological parameters.
Main Methods:
- Analysis of redshift data from Swift-detected gamma-ray bursts.
- Statistical assessment of the GRB redshift distribution.
Main Results:
- The median redshift for Swift-detected GRBs is estimated to be between 2.5 and 3.
- A small fraction of GRBs are likely to exist at redshifts greater than 6 (z>6).
Conclusions:
- GRBs are powerful tools for studying the Epoch of Reionization.
- GRBs can provide valuable constraints on the Universe's star-formation history.
- GRBs may aid in determining fundamental cosmological parameters.
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