Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shedding new light on the Sun with the Fermi LAT   During its first six years of operation, the Fermi Large Area Telescope (LAT)
has detected >30 MeV gamma-ray emission from more than 40 solar flares, nearly
a factor of 10 more than those detected by EGRET. These include detections of
impulsive and sustained emissions, extending up to 20 hours in the case of the
2012 March 7 X-class flares. We will present an overview of solar flare
detections with LAT, highlighting recent results and surprising features,
including the detection of >100 MeV emission associated with flares located
behind the limb. Such flares may shed new light on the relationship between the
sites of particle acceleration and gamma-ray emission.

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The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol