The top panel shows compact sources
of submillimetre radiation detected by APEX as part of the ATLASGAL survey, combined with complementary data from ESA's Planck satellite, to capture more extended features.
SCUBA - 2 will keep the JCMT at the forefront
of submillimetre astronomy, complementing the Submillimeter Array on Mauna Kea and forthcoming telescopes such as the Atacama Large Millimeter Array in Chile.
Herschel can detect bands
of submillimetre light that are blocked by Earth's atmosphere.
Team member Asantha Cooray of the University of California, Irvine, notes that there are fairly few bright sources
of submillimetre light nearby, so «the brightest submillimetre sources are all gravitationally lensed».
Not exact matches
As they are opaque to visible light it is difficult for astronomers to observe their inner workings, and so other tools are needed to unveil their secrets — observations in the infrared or in the
submillimetre parts
of the spectrum, for example, where the dust clouds, only a few degrees over absolute zero, appear bright.
[2] The Atacama Large Millimeter / submillimeter Array (ALMA), operated in part by ESO, observes in
submillimetre and millimetre light and is ideal for the study
of such very young stars in molecular clouds.
A team
of astronomers led by Wouter Vlemmings, Chalmers University
of Technology, have used the telescope Alma (Atacama Large Millimetre /
Submillimetre Array) to make the sharpest observations yet
of a star with the same starting mass as the Sun.
The JCMT's dish, as wide as a basketball court, collects the
submillimetre light and feeds it to a set
of sensitive detectors.
The APEX telescope in Chile has mapped the full area
of the Galactic Plane visible from the southern hemisphere for the first time at
submillimetre wavelengths — between infrared light and radio waves — and in finer detail than recent space - based surveys.
The antennas operate at wavelengths between 0.00035 and 10 millimetres: that is, from
submillimetre wavelengths to the beginning
of the microwave range.
This is known as millimetre and
submillimetre radiation, a subset
of radio waves.
Interferometric observations have demonstrated that a significant fraction
of single - dish
submillimetre (submm) sources are blends
of multiple submm galaxies (SMGs),...
Discovery made possible by a leap in
submillimetre radio astronomy technology, comparable to viewing videos instead
of photos.
«Only a few gravitationally lensed galaxies have been found before at these
submillimetre wavelengths, but now SPT and ALMA have uncovered dozens
of them.»
At these wavelengths, astronomers can peer at the disks
of gas and dust around newborn stars, see into star - forming clouds, and observe early galaxies that are bright in
submillimetre wavelengths but obscured by dust in optical light.
On July 6, 2004, a team
of astronomers (including Jane Greaves, Mark Wyatt, Wayne Holland, and William Dent) using the
Submillimetre Common - User Bolometer Array (SCUBA)
of the James Clerk Maxwell Telescope at the Joint Astronomy Center on the Big Island
of Hawaii announced that they had detected a large and relatively dense, cold dust disk around Tau Ceti (RAS press release; and (Greaves et al, 2004).
Workshop on millimetre and
submillimetre astronomy in Italy», organised from the Italian node
of the European ALMA Regional Centre in Bologna from 7 - 10 November 2017.