The density structure of a solar polar coronal hole

Authors
Warren, HP Hassler, DM
Citation
Hp. Warren et Dm. Hassler, The density structure of a solar polar coronal hole, J GEO R-S P, 104(A5), 1999, pp. 9781-9789
Citations number
38
Categorie Soggetti
Space Sciences
Journal title
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN journal
21699380 → ACNP
Volume
104
Issue
A5
Year of publication
1999
Pages
9781 - 9789
Database
ISI
SICI code
0148-0227(19990501)104:A5<9781:TDSOAS>2.0.ZU;2-H
Abstract
Electron densities derived from Si III, Ne VII, Mg VIII, Si VIII, and Mg IX line ratios observed above the limb of a polar coronal hole with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectrometer on the Solar and Heliospheric Observatory (SoHO) are presented. The electron densi ties are consistent with a constant pressure of 1.6 x 10(14) cm(-3) K (log P-e = 14.2).