168 lines
3.2 KiB
TeX
168 lines
3.2 KiB
TeX
\documentclass[showdate=true,slidenumbers=slide]{beamer}
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\usepackage{amsmath}
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\addtobeamertemplate{navigation symbols}{}{%
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\usebeamerfont{footline}%
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\usebeamercolor[fg]{footline}%
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\hspace{1em}%
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\insertframenumber
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}
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\title{Multi-messenger observations of a flaring Blazar}
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\date{\today}
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\author{E.T. de Boone}
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\begin{document}
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\frame{\titlepage}
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\begin{frame}
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\frametitle{Outline}
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\tableofcontents
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\end{frame}
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\begin{frame}
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\frametitle{Multi-Messenger Astrophysics}
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\begin{table}
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\centering
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\begin{tabular}{r|c|c|c|c|c}
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& EM & CR & GW & $\nu$ & year \\
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\hline
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Solar Flare & yes & yes & & & 1940 \\
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\hline
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Supernova & yes & & pred & yes & 1987 \\
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\hline
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NS merger & yes & & yes & pred & aug 2017 \\
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\hline
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Blazar & yes & & & yes & sep 2017 \\
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\end{tabular}
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\end{table}
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\end{frame}
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\note{
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Importance and History of Multi Messenger Astrophysics
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}
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\section{Instruments and Observations}
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\subsection{Neutrinos}
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\begin{frame}
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\frametitle{Basics}
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\begin{itemize}
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\item Neutrino interacts in atmosphere, ice or water
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\item<2-> Charged particle gets into the ice or water and emit Cherenkov photons
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\item<3-> Cherenkov photons detected by DOMs in the matter
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\end{itemize}
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\end{frame}
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\note{
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Observatories: IceCube, ANTARES, KM3NET
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Interactions
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Charged Current vs Neutral Current
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Cherenkov
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Digital-Optical Modules
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Types of events
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Tracklike vs Showerlike
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}
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\begin{frame}
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\frametitle{event IC-170922A}
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\begin{columns}[t]
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\begin{column}{0.6\textwidth}
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\begin{itemize}
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\item Muon detected
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\item Energy deposited $~23.7$ TeV
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\end{itemize}
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\begin{itemize}
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\item Muon neutrino
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\item Energy $~290$ TeV
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\item Spatial Resolution $< 1^\circ$
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\item
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\end{itemize}
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\end{column}
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\begin{column}{0.3\textwidth}
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\begin{figure}
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\includegraphics[width=\textwidth]{images/IC-170922A-event_display.png}
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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\note{
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Muon detection
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E ~ TeV => atmospheric origin not excluded
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=> EM observation needed to tie to source
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followup ANTARES
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- 1 day
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- sensitivity is 1/10 of IceCube
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prior data of IceCube
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- $3\sigma$ indication of earlier detection in direction
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}
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\subsection{Gamma Rays}
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\begin{frame}
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\frametitle{Instruments}
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\begin{itemize}
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\item FermiLAT
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\item AGILE
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\end{itemize}
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\end{frame}
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\note{
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FermiLAT on Fermi satellite
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AGILE
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- italian spacecraft
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}
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\begin{frame}
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\frametitle{Observations}
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\begin{columns}[t]
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\begin{column}{0.7\textwidth}
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\begin{itemize}
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\item $\gamma$-ray blazar TXS 0506+056
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\end{itemize}
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\end{column}
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\begin{column}{0.3\textwidth}
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\begin{figure}
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\centering
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\includegraphics[width=\textwidth]{images/IC-170922A-positioning-FermiLAT.png}
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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\note{
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position 0.1 grad from best-fitting direction
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what is blazar
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study triggered redshift measurement
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elevated gamma emission
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automated processing showed previous flare.
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-> usual, only studied because of neutrino
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}
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\subsection{Very High Energy Gamma Rays}
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\begin{frame}
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\frametitle{Instruments}
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\begin{itemize}
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\item Imaging Atmospheric Cherenkov Telescope
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\item Water Cherenkov Telescope
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\end{itemize}
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\end{frame}
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\end{document}
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