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Update on McMath-Pierce Solar-Stellar Cross-Disperser System (1Sep95)
(from NSO, NOAO Newsletter No. 43, September 1995)

A new field lens has been fabricated (using the existing field lens)
and installed. This resolved the problem we were having with
vignetting of the spectral field with our new configuration (see
previous NOAO Newsletter). A mechanical problem was discovered with
the new dewar mount that had prevented correct collimation of the
cross-dispersed system. A new dewar mount has been fabricated, which
will be installed by the time of this newsletter. In the meantime, our
REU student, Enrique Chavez, has been making excellent progress in
re-characterizing the new spectrograph configuration with the
cross-dispersed system in place.

Among the proposals approved for the third and fourth quarters of
observations are (by title and PI):

"Doppler Imaging of spotted chromospherically active stars: --K.
Strassmeier (U. Vienna),

"He I 587.6 nm spectra of F and G dwarfs"--V. Andretta (Armagh Obsv.
and NASA/GSFC),

"Chromospheric and coronal processes in F and G-type dwarfs"--J.
Valenti (JILA),

"Spectroscopic study of cool stars serendipitously discovered in EUV
surveys"--G. Tagliaferri (Brera Observatory, Italy),

"Systematics of the Ca II K chromospheric emission line among red
giants"--G. Smith (Lick Observatory),

"Time-resolved Doppler imaging of EI Eridani"--A. Washuettl (U.
Vienna),

"A search for new proto-planetary system candidates"--K.-P. Cheng (Cal
State - Fullerton),

and six other programs of high resolution, synoptic spectroscopic
investigations.

Mark Giampapa, Dave Jaksha

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