The James Clerk Maxwell Telescope
has a primary mirror 49 feet (15 meters) across, making it the largest telescope optimized for observing at submillimeter wavelengths.
That's because I was the first astronomer to observe with the world's first submillimeter telescope, the James Clerk Maxwell Telescope
(JCMT), which opened for business in 1987.
Greaves and her colleagues observed the star with a high-resolution camera attached to the James Clerk Maxwell Telescope
atop Mauna Kea in Hawaii.
Mauna Kea Telescopes * Existing telescope Aperture University of Hawaii 0.6 meter University of Hawaii 2.2 m Canada-France-Hawaii Telescope 3.6 m United Kingdom Infrared 3.8 m Telescope NASA Infrared Telescope Facility 3.0 m Caltech Submillimeter Observatory 10 m James Clerk Maxwell Telescope
15 m (Submillimeter) Very Large Baseline Array (Radio) 25 m W.
The two teams used a new high-resolution camera on the James Clerk Maxwell Telescope
atop Hawaii's Mauna Kea.
Jewitt and Herve Aussel (University of Hawaii) used the James Clerk Maxwell Telescope
to measure its brightness at a wavelength of 350 microns.
The observations, taken with the James Clerk Maxwell Telescope
near the summit of Kea, reveal the relative proportion of carbon, nitrogen, oxygen, and sulfur isotopes in material ejected by the comet.
Greaves (Joint Astronomy Centre, Hawaii) and 10 colleagues discovered the star's dust ring in images they took at a very far infrared wavelength (850 microns) with the 25-meter James Clerk Maxwell telescope
atop Mauna Kea.
But observations with the James Clerk Maxwell Telescope
atop Hawaii's Mauna Kea reveal that the comet spews a startling amount of carbon monoxide, a molecule that sublimes at a chilly 25 kelvins.
Jewitt (University of Hawaii), who has been observing the comet with the 15-meter James Clerk Maxwell Telescope
atop Mauna Kea, Hawaii, agrees.