Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: EUV Irradiance Observations from SDO/EVE as a Diagnostic of Solar Flares   For the past six years, the EUV Variability Experiment (EVE) onboard the
Solar Dynamics Observatory has been monitoring changes in the Sun's extreme
ultraviolet output over a range of timescales. Its primary function is to
provide measurements of the solar spectral irradiance that is responsible for
driving fluctuations in Earth's ionosphere and thermosphere. However, despite
its modest spectral resolution and lack of spatial information, the EVE
spectral range contains many lines and continua that have become invaluable for
diagnosing the response of the lower solar atmosphere itself to an injection of
energy, particularly during a flare's impulsive phase. In addition, high
temperature emission lines can also be used to track changes in temperature and
density of flaring plasma in the corona. The high precision of EVE observations
are therefore crucial in helping us understand particle acceleration and energy
transport mechanisms during solar flares, as well as the origins of the Sun's
most geoeffective emission.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
2
The categories of this paper are: math
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys