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Proposal ID Pres_142

Date of Proposal
98/01/21

firstname
Pawel

lastname
Pres

institute
Rutherford Appleton Laboratory

address
Astrophysics Division
Rutherford Appleton Laboratory
Chilton, Didcot, Oxfordshire OX11 0QX
U.K.

email
pres@solg2.bnsc.rl.ac.uk

phone
+44 1235 446497

fax
+44 1235 46667

proposal
We are currently involved in the data analysis project
of investigation the evolution of the X-ray active
regions caused by series of transient phenomenau.
The results thus far has been based on the analysis of
Yohkoh SXT images of active regions in Al.1 and AlMg filters.
The intensity distribution within each of these images
has been used to evaluate the changing properties of active
region loops such as temperature, emission
measure, the level of heating ratio.

In terms of the EIT instrument, we are interested in
obtaining a series of high resolution images taken in pre
and postflare periods. This data should both allow us to
qualitatively evaluate the changes cased by transient phenomena
in the structure of active regions.
The data of particular interest to our studies are the covering
the period from 1996-Jul-7 till 1996-Jul-12.

inside_collab
J. Lemen

consortium
no

topic
Active Regions

topic

title
Influence of transient phenomena on active region structure


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