Changeset 6184
- Timestamp:
- 02/01/05 18:05:56 (20 years ago)
- Location:
- trunk/MagicSoft/GRB-Proposal
- Files:
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- 2 edited
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trunk/MagicSoft/GRB-Proposal/GRB_proposal_2005.tex
r6179 r6184 54 54 %% elements: title, author, date, plus TDAScode 55 55 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 56 \title{Proposal for the Observation of Gamma-Ray Bursts with the MAGIC Telescope \\57 {\it \Large DRAFT 2.1 }}58 \author{ 56 \title{Proposal for the Observation of Gamma-Ray Bursts with the MAGIC Telescope} 57 % {\it \Large DRAFT 2.1 }} 58 \author{N. Galante\\ \texttt{<nicola.galante@pi.infn.it>}\\ 59 59 M. Garczarczyk\\ \texttt{<garcz@mppmu.mpg.de>}\\ 60 60 M. Gaug\\ \texttt{<markus@ifae.es>} \\ … … 63 63 64 64 \date{January, 2005\\} 65 \TDAScode{MAGIC-TDAS 05- ??\\ 0312??/NGalante}65 \TDAScode{MAGIC-TDAS 05-02\\ 050201/NGalante} 66 66 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 67 67 %% title %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -
trunk/MagicSoft/GRB-Proposal/Introduction.tex
r6179 r6184 22 22 (low-energy) GRB, have been explored. Proton-synchrotron emission~\cite{TOTANI} have been suggested 23 23 as well as photon-pion production~\cite{WAXMAN,BAHCALL,BOETTCHER} and inverse-Compton scattering 24 in the burst environment~\cite{MESZAROS93,CHIANG,PILLA,ZHANG2 }.24 in the burst environment~\cite{MESZAROS93,CHIANG,PILLA,ZHANG2,BELOBORODOV}. 25 25 Long-term HE $\gamma$ emission from accelerated protons in the forward-shock has been predicted in~\cite{LI}. This model predicts GeV inverse Compton emission even one day after the burst. 26 Even considering pure electron-synchrotron radiation predicts measurable GeV emission for a significant fraction of GRBs~\cite{ZHANG2}. In order to be able to describe prompt synchrotron optical flashes (like observed in GRB990123 by ROTSE), GeV--TeV emission by inverse Compton scattering of the MeV photons should be produced at the same time~\cite{BELOBORODOV}.\\26 Even considering pure electron-synchrotron radiation, measurable GeV emission for a significant fraction of GRBs is predicted~\cite{ZHANG2}.\\ 27 27 28 28 GeV emission in GRBs is particularly sensitive to the Lorentz factor and the photon density of the emitting material - … … 40 40 Whipple Air Cherenkov Telescope~\cite{CONNAUGHTON1}, and coincident and monitoring studies by HEGRA-AIROBICC~\cite{PADILLA}, Whipple~\cite{CONNAUGHTON2} and the Milagro prototype Milagrito~\cite{MILAGRO}. The GRAND array has reported some excess of observed muons during seven BATSE bursts~\cite{GRAND}. In this context, especially the publication from the TASC detector on \eg is important~\cite{GONZALES}, finding a HE spectral component presumably due to ultra-relativistic acceleration of hadrons and producing a spectral index of $-1$ with no cut-off up to the detector energy limit (200\,MeV).\\ 41 41 42 Concerning estimates about the \ma observability of GRBs, a very detailed study of GRB spectra obtained from the 43 third and fourth \ba catalogue has been made in~\cite{ICRC,NICOLA}. The spectra were extrapolated to GeV energies 44 with a simple continuation of the observed high-energy power law behaviour and the calculated fluxes compared with \ma sensitivities. Setting conservative cuts on observation times and significances, 42 Concerning estimates of \ma GRB observability, a very detailed study of GRB spectra obtained from the 43 third and fourth \ba catalogue has been made in~\cite{ICRC,NICOLA}. The spectra were extrapolated to GeV energies with a simple continuation of the observed high-energy power law behaviour and the calculated fluxes compared with \ma sensitivities. Setting conservative cuts on observation times and significances, 45 44 and assuming an energy threshold of 15~GeV, a GRB detection rate of $0.5-2$ per year 46 45 was obtained for an assumed observation delay between 15 and 60 sec. and a \ba trigger rate ($\sim$\,360/year).
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