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.
Reale
Fabio
F
Dipartimento di Scienze Fisiche ed Astronomiche, Sezione di Astronomia, Università di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy. reale@astropa.unipa.it
Parenti
Susanna
S
Reeves
Kathy K
KK
Weber
Mark
M
Bobra
Monica G
MG
Barbera
Marco
M
Kano
Ryouhei
R
Narukage
Noriyuki
N
Shimojo
Masumi
M
Sakao
Taro
T
Peres
Giovanni
G
Golub
Leon
L