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Title: FERMI DETECTION OF {gamma}-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12

Abstract

The Geostationary Operational Environmental Satellite (GOES) M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an {approx}50 s impulsive burst of hard X- and {gamma}-ray emission up to at least 400 MeV observed by the Fermi Gamma-ray Burst Monitor and Large Area Telescope experiments. The remarkably similar hard X-ray and high-energy {gamma}-ray time profiles suggest that most of the particles were accelerated to energies {approx}>300 MeV with a delay of {approx}10 s from mildly relativistic electrons, but some reached these energies in as little as {approx}3 s. The {gamma}-ray line fluence from this flare was about 10 times higher than that typically observed from this modest GOES class of X-ray flare. There is no evidence for time-extended >100 MeV emission as has been found for other flares with high-energy {gamma}-rays.

Authors:
 [1]; ; ; ; ; ;  [2];  [3]; ; ;  [4];  [5]; ;  [6]; ; ;  [7];  [8];  [9];  [10] more »; « less
  1. Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen (Germany)
  2. W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
  3. Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)
  4. Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa (Italy)
  5. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste (Italy)
  6. Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy)
  7. Center for Space Plasma and Aeronomic Research (CSPAR), University of Alabama in Huntsville, Huntsville, AL 35899 (United States)
  8. Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia (Italy)
  9. Dipartimento di Fisica 'M. Merlin' dell'Universita e del Politecnico di Bari, I-70126 Bari (Italy)
  10. Laboratoire Leprince-Ringuet, Ecole polytechnique, CNRS/IN2P3, Palaiseau (France)
Publication Date:
OSTI Identifier:
22011651
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 745; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCELERATION; COSMIC GAMMA BURSTS; ELECTRONS; GAMMA RADIATION; GOES SATELLITES; HARD X RADIATION; PHOTON EMISSION; RELATIVISTIC RANGE; SOFT X RADIATION; SOLAR FLARES; SUN; TELESCOPES

Citation Formats

Ackermann, M, Ajello, M, Allafort, A, Bechtol, K, Blandford, R D, Borgland, A W, Buehler, R, Atwood, W B, Baldini, L, Bellazzini, R, Bregeon, J, Barbiellini, G, Bastieri, D, Buson, S, Bhat, P N, Briggs, M S, Burgess, J M, Bonamente, E, Brigida, M, Bruel, P, and others, and. FERMI DETECTION OF {gamma}-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12. United States: N. p., 2012. Web. doi:10.1088/0004-637X/745/2/144.
Ackermann, M, Ajello, M, Allafort, A, Bechtol, K, Blandford, R D, Borgland, A W, Buehler, R, Atwood, W B, Baldini, L, Bellazzini, R, Bregeon, J, Barbiellini, G, Bastieri, D, Buson, S, Bhat, P N, Briggs, M S, Burgess, J M, Bonamente, E, Brigida, M, Bruel, P, & others, and. FERMI DETECTION OF {gamma}-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12. United States. https://doi.org/10.1088/0004-637X/745/2/144
Ackermann, M, Ajello, M, Allafort, A, Bechtol, K, Blandford, R D, Borgland, A W, Buehler, R, Atwood, W B, Baldini, L, Bellazzini, R, Bregeon, J, Barbiellini, G, Bastieri, D, Buson, S, Bhat, P N, Briggs, M S, Burgess, J M, Bonamente, E, Brigida, M, Bruel, P, and others, and. 2012. "FERMI DETECTION OF {gamma}-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12". United States. https://doi.org/10.1088/0004-637X/745/2/144.
@article{osti_22011651,
title = {FERMI DETECTION OF {gamma}-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12},
author = {Ackermann, M and Ajello, M and Allafort, A and Bechtol, K and Blandford, R D and Borgland, A W and Buehler, R and Atwood, W B and Baldini, L and Bellazzini, R and Bregeon, J and Barbiellini, G and Bastieri, D and Buson, S and Bhat, P N and Briggs, M S and Burgess, J M and Bonamente, E and Brigida, M and Bruel, P and others, and},
abstractNote = {The Geostationary Operational Environmental Satellite (GOES) M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an {approx}50 s impulsive burst of hard X- and {gamma}-ray emission up to at least 400 MeV observed by the Fermi Gamma-ray Burst Monitor and Large Area Telescope experiments. The remarkably similar hard X-ray and high-energy {gamma}-ray time profiles suggest that most of the particles were accelerated to energies {approx}>300 MeV with a delay of {approx}10 s from mildly relativistic electrons, but some reached these energies in as little as {approx}3 s. The {gamma}-ray line fluence from this flare was about 10 times higher than that typically observed from this modest GOES class of X-ray flare. There is no evidence for time-extended >100 MeV emission as has been found for other flares with high-energy {gamma}-rays.},
doi = {10.1088/0004-637X/745/2/144},
url = {https://www.osti.gov/biblio/22011651}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 745,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2012},
month = {Wed Feb 01 00:00:00 EST 2012}
}

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Works referencing / citing this record:

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Self-consistent Modeling of Gamma-ray Spectra from Solar Flares with the Monte Carlo Simulation Package FLUKA
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Using gamma ray monitoring to avoid missing the next Milky Way Type Ia supernova
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