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Proposal ID Handy_29

Date of Proposal
96/09/13

firstname
Brian

lastname
Handy

institute
Montana State University

address
Dept. of Physics, Montana State University
Bozeman, MT 59717

email
handy@sag.lmsal.com

phone
(415) 325-9670

fax
415) 424-3994

proposal
Active Regions NOAA #7978 and its subsequent appearance as #7986 on the
next solar rotation drew a great deal of attention when it appeared during
July 1996. It was an old-cycle, low-latitude, solar-minimum region, which
produced an GOES class X-ray flare. Over a period of hours the solar
X-ray flux as measured by GOES changed by over five orders of magnitude.
During the course of the active region evolution, a large coronal hole
channel developed that stretched from the north polar hole down to near
the active region. The uniqueness and size of this active region provides
a good opportunity to study the effect that active region evolution has on
the development of a nearby coronal hole. In particular, we present the
morphological development of the coronal hole boundaries and compare it to
development of the active region using data acquired with the EIT on SOHO
and the SXT on Yohkoh. We compare these developments with magnetograms
that have been obtained with MDI on SOHO.

inside_collab
J. R. Lemen

consortium
no

topic
Coronal Holes

topic

title
Multi-spectral Studies of a Coronal Channel


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