The Mees CCD imaging spectrograph

Details The Mees CCD imaging spectrograph The Mees CCD imaging spectrograph

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..135..163p&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 135, Sept. 1991, p. 163-177.

Physics

29

Charge Coupled Devices, Imaging Spectrometers, Solar Flares, Chromosphere, Solar Activity, Solar Observatories, Solar Oscillations

Scientific paper

The Mees CCD (MCCD0 instrument is an imaging spectroscopy device which uses the 25-cm coronagraph telescope and the 3.0-m Coude spectrograph at Mees Solar Observatory on Haleakala, Maui. The instrument works with resolving power up to about 200,000 with significant throughput from 3934 A (Ca II K) to about 10,000 A. A fast guiding active mirror stabilizes the image during observations. A rapidly writing magnetic tape storage system allows observations to be recorded at 256 kbytes/s. Currently, the MCCD is used for imaging spectroscopy of solar flares at 6563 A (H-alpha), and velocity measurements of umbral oscillations; future plans include emission line studies of active region coronae, and photospheric studies of solar oscillations.

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