Fine thermal structure of a coronal active region.
The determination of the fine thermal structure of the solar corona is fundamental to constraining the coronal heating mechanisms. The Hinode X-ray Telescope collected images of the solar corona in different passbands, thus providing temperature diagnostics through energy ratios. By combining different filters to optimize the signal-to-noise ratio, we observed a coronal active region in five filters, revealing a highly thermally structured corona: very fine structures in the core of the region and on a larger scale further away. We observed continuous thermal distribution along the coronal loops, as well as entangled structures, and variations of thermal structuring along the line of sight.
Dipartimento di Scienze Fisiche ed Astronomiche, Sezione di Astronomia, Università di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy. reale@astropa.unipa.it
Fabio
F
Reale
Susanna
S
Parenti
Kathy K
KK
Reeves
Mark
M
Weber
Monica G
MG
Bobra
Marco
M
Barbera
Ryouhei
R
Kano
Noriyuki
N
Narukage
Masumi
M
Shimojo
Taro
T
Sakao
Giovanni
G
Peres
Leon
L
Golub