Seminars and Colloquia
Fermi Large Area Telescope observation of high energy emission from Solar Flares
by
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Europe/Rome
131 (INFN edificio C)
131
INFN edificio C
Description
The Fermi Large Area Telescope (LAT) is the most sensitive instrument ever deployed in space for observing gamma-ray emission >100 MeV.
This has also been demonstrated by its detection of quiescent gamma-ray emission from pions produced by cosmic-ray protons interacting in the solar atmosphere, and from cosmic-ray electron interactions with solar optical photons.
The Fermi LAT has also detected high-energy gamma-ray emission associated with GOES M-class and X-class X-ray flares, each accompanied by a coronal mass ejection and a solar energetic particle event.
Gamma-rays with energies >100 MeV have been recorded by the LAT during during the impulsive phase of the flares, and emission up to GeV energies lasting several hours after the flare has also been recorded by the LAT.
In this presentation I will review the characteristics of these observations focusing, in particular, on the modest GOES M2-class solar flare SOL2010-06-12T00:57 and on the bright event of 2012 March 7, and I will outline their implications for the understanding of the solar flare phenomenon.
This has also been demonstrated by its detection of quiescent gamma-ray emission from pions produced by cosmic-ray protons interacting in the solar atmosphere, and from cosmic-ray electron interactions with solar optical photons.
The Fermi LAT has also detected high-energy gamma-ray emission associated with GOES M-class and X-class X-ray flares, each accompanied by a coronal mass ejection and a solar energetic particle event.
Gamma-rays with energies >100 MeV have been recorded by the LAT during during the impulsive phase of the flares, and emission up to GeV energies lasting several hours after the flare has also been recorded by the LAT.
In this presentation I will review the characteristics of these observations focusing, in particular, on the modest GOES M2-class solar flare SOL2010-06-12T00:57 and on the bright event of 2012 March 7, and I will outline their implications for the understanding of the solar flare phenomenon.