Submillimeter observations of the sun from the James Clerk Maxwell Telescope

Abstract

view Abstract Citations (19) References (5) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Submillimeter Observations of the Sun from the James Clerk Maxwell Telescope Lindsey, Charles A. ; Yee, Selwyn ; Roellig, Thomas L. ; Hills, Richard ; Brock, David ; Duncan, William ; Watt, Graeme ; Webster, Adrian ; Jefferies, John T. 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. Publication: The Astrophysical Journal Pub Date: April 1990 DOI: 10.1086/185706 Bibcode: 1990ApJ...353L..53L Keywords: Chromosphere; Solar Atmosphere; Submillimeter Waves; Sunspots; Infrared Telescopes; K Lines; Solar Granulation; Solar Observatories; Thermodynamic Equilibrium; Solar Physics; INFRARED: GENERAL; SUN: CHROMOSPHERE; SUN: PLAGES; SUN: SUNSPOTS full text sources ADS |