Talk detail

MG14 - Talk detail

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 Participant

Fargion, Daniele

Institution

Physics Depart., ROME UNIVERSITY 1 and INFN  - Ple A Moro 2 - Rome - Roma - Italy

Session

DM3

Accepted

Order

Time

Talk

Poster abstract

Title

Sterile Neutrino role in Low and Highest energy astrophysics
Coauthors

Abstract

Sterile neutrino may be active in early Universe and in stellar evolution mostly by rare oscillation with active neutrinos. In particular they may play a role in escaping earlier in supernovae explosion offering a rare but detectable signal in future Megaton detectors. Moreover sterile neutrino, relic from early Universe Big Bang may be here playing a role in cosmic Dark matter and Galaxy formation. Finally sterile neutrino may play a role also in Highest energy Astrophysics explaining a rare puzzling correlation in highest energy Cosmic Ray maps.

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Session

GB2

Accepted

Order

Time

Talk

Oral abstract

Title

Apparent growth in output and hardness of GRB with redshift: The legacy of a persisten thin precessing gamma Jet
Coauthors

Abstract

The Gamma ray burst output in the Universe seem to grow with their redshift. The GRB (as all sources) are more and more abundant with their distance; A more abundant sample of thin jets, whose inner gamma cone jet is more hard and rare to be aligned may explain the higher output and the higher gamma hardness. The persistent and precessing gamma jet, powered by twin lepton jet in synchrotron radiation, may explain this apparent paradox while combining several (eight-nine) order of magnitude spread in GRB powers between near and far cosmic edges. References 1) On the nature of the GRBs-SGRs blazing jet Daniele Fargion ,Journal-ref: Astron.Astrophys.Suppl.Ser.138:507-508,1999 2) GRBs, SGRs by UHE leptons showering, blazing and re-brightening by precessing Gamma Jets in-off axis D.Fargion, M.Grossi : Chin.J.Astron.Astrophys.6S1:342-348,2006 3) An apparent GRBs evolution around us or a sampling of thin GRB beaming jets? D. Fargion, D. D'Armiento Mem.Soc.Ast.It. 81:440, 2010

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