Published August 1, 2009
| Version v1
Journal article
LARGE-SCALE FLOWS IN PROMINENCE CAVITIES
Creators
- 1. Department of Astrophysical and Planetary Sciences, University of Colorado-Boulder, UCB 391, Boulder, CO 80309 (United States)
- 2. High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307 (United States)
- 3. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS 58, Cambridge, MA 02138 (United States)
- 4. NASA Marshall Space Flight Center, Space Science Office, VP62, Huntsville, AL 35805 (United States)
- 5. Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States)
- 6. Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT (United Kingdom)
- 7. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
Description
Regions of rarefied density often form cavities above quiescent prominences. We observed two different cavities with the Coronal Multichannel Polarimeter on 2005 April 21 and with Hinode/EIS on 2008 November 8. Inside both of these cavities, we find coherent velocity structures based on spectral Doppler shifts. These flows have speeds of 5-10 km s-1, occur over length scales of tens of megameters, and persist for at least 1 hr. Flows in cavities are an example of the nonstatic nature of quiescent structures in the solar atmosphere.
Availability note (English)
Available from http://dx.doi.org/10.1088/0004-637X/700/2/L96Additional details
Identifiers
Publishing Information
- Journal Title
- Astrophysical Journal (Online)
- Journal Volume
- 700
- Journal Issue
- 2
- Journal Page Range
- p. L96-L98
- ISSN
- 1538-4357
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41057113
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- DOPPLER EFFECT; POLARIMETERS; SOLAR ATMOSPHERE; SUN; ULTRAVIOLET RADIATION
- Descriptors DEC
- ATMOSPHERES; ELECTROMAGNETIC RADIATION; MAIN SEQUENCE STARS; RADIATIONS; STARS; STELLAR ATMOSPHERES