THE PROLATE SOLAR CHROMOSPHERE

Authors
AUCHERE F BOULADE S KOUTCHMY S SMARTT RN DELABOUDINIERE JP GEORGAKILAS A GURMAN JB ARTZNER GE
Citation
F. Auchere et al., THE PROLATE SOLAR CHROMOSPHERE, Astronomy and astrophysics (Berlin), 336(3), 1998, pp. 57-60
Citations number
11
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics (Berlin) → ACNP
ISSN journal
00046361
Volume
336
Issue
3
Year of publication
1998
Pages
57 - 60
Database
ISI
SICI code
0004-6361(1998)336:3<57:TPSC>2.0.ZU;2-F
Abstract
We present a comparative analysis of the chromospheric solar limb prol ateness, using strictly simultaneous H-alpha ground-based observations and Hen space-based observations. The typical prolateness is found to be Delta D/D = 5.5 x 10(-3) in Hen and 1.2 x 10(-3) in H-alpha. The f irst measurements in the 30.4 nm Hen line over a period of two years, as well as coronal data, are discussed to explore further the origin o f the prolateness and its possible consequences.