1. Submillimeter observations of the sun from the James Clerk Maxwell Telescope
- Author
-
Charles A. Lindsey, Selwyn Yee, Thomas L. Roellig, Richard Hills, David Brock, William Duncan, Graeme Watt, Adrian Webster, and John T. Jefferies
- Subjects
Physics ,Sunspot ,Starspot ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Astronomy and Astrophysics ,Astrophysics ,Solar physics ,K-line ,Space and Planetary Science ,Physics::Space Physics ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Earth and Planetary Astrophysics ,Surface brightness ,Chromosphere ,Astrophysics::Galaxy Astrophysics ,James Clerk Maxwell Telescope ,Main sequence - Abstract
The first submillimeter solar observations from the 15 m James Clerk Maxwell Telescope (JCMT) on Mauna Kea are reported. The JCMT submillimeter heterodyne receiver is used to observe the sun in 850 micron radiation. These are the first submillimeter observations of features on the size scale of the chromospheric supergranular network and of sunspots. A comparison is made between 850 micron images and calcium K line images of the chromospheric supergranular network in the quiet sun and in plage. Images of sunspots are given, noting that their 850 micron brightness is comparable to, or somewhat greater than, that of the quiet sun.
- Published
- 1990
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