From gvozdev@uniyar.ac.ru  Tue Feb 15 16:43:19 2000
Return-Path: <gvozdev@uniyar.ac.ru>
Received: from ra.sai.msu.su (ra.sai.msu.su [158.250.29.2])
	by xray.sai.msu.su (8.9.3/8.9.3) with ESMTP id QAA00736
	for <polar@xray.sai.msu.su>; Tue, 15 Feb 2000 16:43:17 +0300
Received: from univ.uniyar.ac.ru (gvozdev@univ.uniyar.ac.ru [193.233.51.120])
	by ra.sai.msu.su (8.9.3/8.9.3) with ESMTP id QAA20275
	for <polar@sai.msu.su>; Tue, 15 Feb 2000 16:43:13 +0300 (GMT)
Received: from localhost (gvozdev@localhost)
	by univ.uniyar.ac.ru (8.9.1/8.9.1) with SMTP id QAA17212;
	Tue, 15 Feb 2000 16:43:07 +0300 (MSK)
Date: Tue, 15 Feb 2000 16:43:06 +0300 (MSK)
From: "Alexander A. Gvozdev" <gvozdev@uniyar.ac.ru>
To: "Sergei B. Popov" <polar@sai.msu.su>
cc: osa-lat@xray.sai.msu.su
Subject: Colloquium  BH-2000
In-Reply-To: <200001211205.PAA11656@xray.sai.msu.su>
Message-ID: <Pine.GSO.3.96.SK.1000215155534.7989A-100000@univ.uniyar.ac.ru>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
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").