Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pre-flare coronal jet and evolutionary phases of a solar eruptive
  prominence associated with M1.8 flare: SDO and RHESSI observations   We investigate triggering, activation, and ejection of a solar eruptive
prominence that occurred in a multi-polar flux system of active region NOAA
11548 on 2012 August 18 by analyzing data from AIA on board SDO, RHESSI, and
EUVI/SECCHI on board STEREO. Prior to the prominence activation, we observed
striking coronal activities in the form of a blowout jet which is associated
with rapid eruption of a cool flux rope. Further, the jet-associated flux rope
eruption underwent splitting and rotation during its outward expansion. These
coronal activities are followed by the prominence activation during which it
slowly rises with a speed of ~12 km/s while the region below the prominence
emits gradually varying EUV and thermal X-ray emissions. From these
observations, we propose that the prominence eruption is a complex, multi-step
phenomenon in which a combination of internal (tether-cutting reconnection) and
external (i.e., pre-eruption coronal activities) processes are involved. The
prominence underwent catastrophic loss of equilibrium with the onset of the
impulsive phase of an M1.8 flare suggesting large-scale energy release by
coronal magnetic reconnection. We obtained signatures of particle acceleration
in the form of power law spectra with hard electron spectral index (delta ~ 3)
and strong HXR footpoint sources. During the impulsive phase, a hot EUV
plasmoid was observed below the apex of the erupting prominence that ejected in
the direction of the prominence with a speed of ~177 km/s. The temporal,
spatial and kinematic correlations between the erupting prominence and the
plasmoid imply that the magnetic reconnection supported the fast ejection of
prominence in the lower corona.

15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs