ABSTRACT
KYOUNG-SUN LEEksun.lee@nao.ac.jp
NAOJ
| Title : | Spectroscopic observation of a loop-top source of an M1.3 limb solar flare |
| Abstract | |
| We have investigated an M1.3 flare on 2014 January 13 around 21:48 UT observed at the west limb using the Hinode, SDO, and STEREO. Especially, the Hinode/EIS scanned the flaring loop covering the loop-top region over the limb, which is a good target to investigate the dynamics of the flaring loop with their height. Using the multi-wavelength observations from the Hinode/EIS and SDO/AIA, we found a very hot emission above the loop-top observed in Fe XXIV (94Å channel). Measuring the intensity, Doppler velocity and line width for the flaring loop, we found that hot emission observed at the cusp like shape of loop-top region which shows strong redshift about 500 km/s in Doppler velocity and strong enhancement of the non-thermal velocity (line width enhancement) larger than 100 km/s. Combining with the STEREO observation, we also discuss the 3D structure and velocity distribution of the loop-top region. | |
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