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From gvozdev@uniyar.ac.ru Tue Feb 15 16:43:19 2000
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Date: Tue, 15 Feb 2000 16:43:06 +0300 (MSK)
From: "Alexander A. Gvozdev"
To: "Sergei B. Popov"
cc: osa-lat@xray.sai.msu.su
Subject: Colloquium BH-2000
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Status: R


Dear colleagues,
Thank you very much for your invitation to participate in BH-2000
Colloquium. I send you an application with proposed title, time and
abstract of my presentation.

Section: Gamma-Ray Bursts

Title: Neutrino losses and efficiency for e^+e^- pairs production
in "failed supernovae" with strong magnetic field.

Authors: Alexander Gvozdev and Igor' Ognev

Institution: Yaroslavl State University

Time: 10 min.

Abstract: Dominant neutrino processes in "failed supernovae" model
of GRB's with strong magnetic field are investigated. The magnetic
fields $ B \sim 10^{15}-10^{16} G $ in "failed supernovae", or
"hypernova" GRB models are discussed usually in connection with
Blandford-Znajek mechanism. However, such a strong fields could
influence sufficiently both on the neutrino emissivities ( via
dominant URCA-processes) and on the efficiency of $ e^+e^- $ pairs
production (via dominant reaction $\ nu \to \nu e^+e^-$ in the case
of the strong magnetic field). We present first preliminary
estimations of the neutrino emissivities and the efficiency for
$e^+e^-$ pairs production in "failed supernovae" in the presence
of magnetic field.

Thank you in advance

Best regards, Alexander Gvozdev


The cost of ticket to Moscow ( electrichka) is 60 rbl, from Moscow
is between 80 and 130 rbl ( because of night tram, " platzkart",or
"kupe").