Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (99) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· Translate This Page
A model for the formation of solar prominences
Antiochos, S. K.; Klimchuk, J. A.
AA(U.S. Navy, E.O. Hulburt Center for Space Research, Washington, DC), AB(Stanford University, CA)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 378, Sept. 1, 1991, p. 372-377. (ApJ Homepage)
Publication Date:
Solar Physics
NASA/STI Keywords:
Chromosphere, Solar Activity, Solar Corona, Solar Prominences, Stellar Models, Fine Structure, H Alpha Line, Solar Wind
Bibliographic Code:


A model for the formation of prominence condensations in hot coronal loops is proposed. Previous studies have concentrated on cooling the hot plasma by decreasing the coronal heating rate. The difficulty with such models is that when the heating decreases, most of the loop mass is lost by draining onto the chromosphere. It is argued that a prominence condensation is likely to be due to an increase in the heating. The key idea of the model is that the heating increase is spatially dependent so that it is localized nearer to the chromospheric footpoints than to the loop midpoint. Results are presented of numerical simulations of hot loops that are initially heated uniformly, and then undergo heating increases that are concentreated away from the loop midpoint. The temperature at the midpoint first increases, but eventually it collapses to chromospheric values as a result of chromospheric evaporation. Hence, a curious result is obtained, that increasing the heating causes cooling. The resulting densities and time scales agree well with observations. The implications of this model for coronal heating and prominence structure are discussed.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints