PPT-Space-based Gamma- ray Astronomy

Liz Hays NASA Goddard Space Flight Center The Origin of Cosmic Rays Credit S Swordy Victor Hess and his Flight Ops Team 1912 From protons Pion decay Accelerated protons p interact with matter. ASTROPHYSICAL SCENARIOS. Félix Mirabel. CEA-Saclay-France . *. Neutron stars & Black . holes. in . stellar. . binary. . systems. . that. . radiate. in gamma-rays.. (Will not . refer. extreme physics at play. Bruce Gendre. ARTEMIS. Description of a GRB. Gamma-ray Burst : . burst of high energy photons. Isotropic distribution on the sky. extragalactic events. . quite common (~2/day. Polarimeter. for Solar flares . (. GRIPS. ). Recently funded NASA LCAS balloon mission. 3D position-sensitive germanium spectrometer. High spectral resolution (~2 keV FWHM at 662 keV). Compton-scatter track reconstruction. Manel. Martinez. 4. 3. rd. . Winter Meeting. March 2015-Benasque. Outline. 1) Introduction. 2) Basics on VHE Gamma Astronomy physics. 3) VHE gamma observatories. 4) CTA. 5. ) Conclusions. 1) INTRODUCTION. David Smith. Centre d’Etudes Nucléaires de Bordeaux-Gradignan. ( CENBG - in2p3 - CNRS ). I. nstitut. de Physique Nucléaire de Lyon. 6 mars 2015. Le ciel en rayons gamma. avec le. . satellite . Fermi . Andrew Levan. University of Warwick. Burst durations. Swift 1644+57. Very long bursts are often image triggers (1000+s). Correction from Swift observed rates to astrophysical rates (at Swift limits) could be a factor 10. Mysterious explosions in the Universe. Poonam Chandra. Royal Military College of Canada. Universe is 14 billion years old.. Our sun is 5 billion years.. Supernovae and Gamma ray bursts. Explosions lasting fraction of a second to few seconds.. Astronomy. , derived from the Greek words for . star law. , is the scientific study of all objects beyond our world. . Astronomy is not a “stand-alone” science. . It combines areas from a number of other fields, including mathematics, chemistry, geology, biology and physics. . catch a burst and notify other observatoriesboth in space and on the ground of its approx-imate locationWithin minutes HETE-2 mayobtain a precise locationCurrent telescopestake much longer to notify o National Centre for Radio Astrophysics. Tata Institute of Fundamental Research. Poonam Chandra. What are Gamma Ray bursts (GRBs)?. Most energetic events in the universe. Long duration GRBs (t>2s) . ABRAÃO NOVA, FREDERICO RIBEIRO, PAMALLA OLIVEIRA, DANIEL AMANCIO, CÁSSIA MACHADO, ALEXANDRA CAROLINA, MARCIO PAIXÃO, ANTONIO ANTONINO, ENIVALDO BARBOSA, ANTONIO BARBOSA, MARIA LOURENÇO, MARCOS RODRIGUES, AND RICHARD HECK. Flashes. Gamma Ray . Astronomy. . Beginning. started . as a small budget research program in 1959. monitor. ing. compliance with the 1963 Partial Test Ban Treaty by the Soviet Union, and other nuclear-capable states. A novel gamma-ray detector configuration. Roi . Rahin*. Department of Physics, Technion. For . the. GALI collaboration. . *Ramon fellow by the Israeli Ministry of Science and Technology.. Background - Gamma ray bursts. T. elescope. Liz Hays. NASA GSFC. Lecture Plan. The Fermi Observatory. Science Motivation. Instruments. Detecting gamma rays with the Large . A. rea Telescope. Instrument Subsystems. Angular resolution.