Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
Volume 22, Issue 14, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271813300280
Keywords
Cosmological parameters; gamma ray bursts; gamma rays; observations
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Funding
- Italian Ministry for Education, University and Research through PRIN MIUR [2009 ERC3HT]
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In a few dozen seconds, gamma ray bursts (GRBs) emit up to similar to 10(54) erg in terms of an equivalent isotropically radiated energy E-iso, so they can be observed up to z similar to 10. Thus, these phenomena appear to be very promising tools to describe the expansion rate history of the universe. Here, we review the use of the E-p,E- i-Eiso correlation of GRBs to measure the cosmological density parameter OM. We show that the present data set of GRBs, coupled with the assumption that we live in a flat universe, can provide independent evidence, from other probes, that Omega(M) similar to 0.3. We show that current (e.g. Swift, Fermi/GBM, Konus-WIND) and forthcoming gamma ray burst (GRB) experiments (e.g. CALET/GBM, SVOM, Lomonosov/UFFO, LOFT/WFM) will allow us to constrain Omega(M) with an accuracy comparable to that currently exhibited by Type Ia supernovae (SNe-Ia) and to study the properties of dark energy and their evolution with time.
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