ELECTRON-TEMPERATURE OF SOLAR-FLARES DERIVED FROM HELIUM-LIKE SULFUR LINES

Authors
YUDA S HIEI E TAKAHASHI M WATANABE T
Citation
S. Yuda et al., ELECTRON-TEMPERATURE OF SOLAR-FLARES DERIVED FROM HELIUM-LIKE SULFUR LINES, Publications of the Astronomical Society of Japan, 49(1), 1997, pp. 115-121
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of Japan → ACNP
ISSN journal
00046264
Volume
49
Issue
1
Year of publication
1997
Pages
115 - 121
Database
ISI
SICI code
0004-6264(1997)49:1<115:EOSDFH>2.0.ZU;2-#
Abstract
The maximum temperatures and emission measures reached in solar flares were obtained from heliumlike sulphur lines, which were observed by t he Bragg Crystal Spectrometer on board Yohkoh. A very weak dependence of the maximum temperature against the soft X-ray intensity was found. Similar multi-thermal characteristics prevailed in flares irrespectiv e of the flare intensity, suggesting that the solar flare is a homogen eous phenomenon in the solar atmospheres.