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Proposal ID Hassler_18

Date of Proposal
96/07/17

firstname
Donald

lastname
Hassler

institute
High Altitude Observatory/NCAR

address
High Altitude Observatory/NCAR
P.O. Box 3000
Boulder, CO 80307

email
hassler@hao.ucar.edu

phone
303-497-1538

fax
303-497-1589

proposal

I propose to collaborate with Jean-Pierre Delaboudiniere to compare daily
EIT
He 304 A, Fe XII 195 A, and Fe X 171 A images with high temporal resolution
full disk He I 10830 A images obtained with our new Coronal Helium Imaging
Photometer (CHIP) instrument operating at the Mauna Loa Solar Observatory.
This CHIP He 10830 imager, which was deployed in March 1996, uses a liquid
crystal variable retarder tunable filter to provide full disk He 10830
images
with a spatial resolution of roughly 7 arcseconds and a time cadence of 1
image every 3 minutes between the hours of approximately 17:00-23:00 UT.
(CHIP
image every 3 minutes between the hours of approximately 17:00-23:00 UT.
(CHIP
is capable of producing 1 full disk image every 30 seconds and will be
operated
in this mode on a campaign basis.) I propose to utilize the high temporal
resolution of this new He I imager along with the high spatial resolution of
the EIT He II, Fe XII and Fe X images to study short time scale dynamic
phenomena. I am also interested in using these data sets to collaborate with
Jean-Pierre in comparing CHIP He I 10830, EIT He II 304, and SUMER He I 584
A
images to study the formation of these Helium lines in the chromosphere and
corona. As a Co_investigator with the SUMER instrument on SOHO, I propose
to include, whenever possible, co-temporal high resolution spectroheliograms
and time series images in He 584 A and other relevant emission lines to
measure spectroscopically the line-of-sight velocities and
thermal/non-thermal
heating (line widths) of observed structures.

For this collaboration, I request permission to access one daily high
resolution FITS format EIT image in He 304 A, Fe XII 195 A, and Fe X 171 A,
obtained between 17:00-23:00 UT (or as close as possible to this time). As
Instrument Scientist for the HAO CHIP He 10830 Imager, I will provide full
access of the CHIP time series data to Jean-Pierre, or any other EIT
consortium member who is interested in these data.

inside_collab
Jean-Pierre Delaboudiniere

consortium
no

topic
SUMER

topic

title
(none given)


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