Dr. Lorenzo Amati: Shedding light on the dark Universe with Gamma-Ray Bursts
Datum objave: 6. 5. 2015
Astrodebata
Pozor: spremenjeni sta bili ura in predavalnica!
V ponedeljek, 11. maja, bo na Astrodebati/Ponedeljkovem fizikalnem kolokviju dr. Lorenzo Amati (INAF - Istituto di Astrofisica Spaziale e Fisica cosmica, Italija) predaval o odkrivanju zgodnjega vesolja s pomočjo izbruhov sevanja gama. Vabljeni v ponedeljek, 11. maja 2015, ob 16:15 v predavalnico F1 na Fakulteti za matematiko in fiziko, Jadranska 19, Ljubljana.
Predavanje je vključeno v sklop Ponedeljkovih fizikalnih kolokvijev. Pred predavanjem so vsi udeleženci vabljeni na čaj!
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Shedding light on the dark Universe with Gamma-Ray Bursts
dr. Lorenzo Amati
INAF - Istituto di Astrofisica Spaziale e Fisica cosmica
Bologna, Italy
Abstract:
Gamma-Ray Bursts are the most luminous and remote phenomena in the Universe, with isotropic-equivalent radiated energies up to more than 10^54 erg and a redshift distribution extending to at least z = 9-10. Thus, they are in principle very powerful tools for cosmology. I summarize the status and perspectives of the research activities aimed at using GRBs to investigate the expansion rate and geometry of the Universe, thus getting clues to "dark energy" properties and evolution, and to explore the early Universe at the end of the "dark ages" (reionization, first stars, star formation rate and metallicity evolution in the first billion of years).
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