NDLI: Forward modeling of a coronal cavity

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Forward modeling of a coronal cavity

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kucera, T. A.
Copyright Year	2011
Description	We apply a forward model of emission from a coronal cavity in an effort to determine the temperature and density distribution in the cavity. Coronal cavities are long, low-density structures located over filament neutral lines and are often seen as dark elliptical features at the solar limb in white light, EUV and X-rays. When these structures erupt they form the cavity portions of CMEs The model consists of a coronal streamer model with a tunnel-like cavity with elliptical cross-section and a Gaussian variation of height along the tunnel length. Temperature and density can be varied as a function of altitude both in the cavity and streamer. We apply this model to a cavity observed in Aug. 2007 by a wide array of instruments including Hinode/EIS, STEREO/EUVI and SOHO/EIT. Studies such as these will ultimately help us understand the the original structures which erupt to become CMEs and ICMES, one of the prime Solar Orbiter objectives.
File Size	33283
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110007878
Archival Resource Key	ark:/13960/t5cc60c9x
Language	English
Publisher Date	2011-03-27
Access Restriction	Open
Subject Keyword	Solar Physics Temperature Distribution Coronas X Rays Solar Limb Coronal Holes Density Distribution Extreme Ultraviolet Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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