Atacama Submillimeter Telescope Experiment

Summary

Atacama Submillimeter Telescope Experiment
Atacama Submillimeter Telescope Experiment 01.jpg
Atacama Submillimeter Telescope Experiment
Alternative namesASTE Edit this at Wikidata
Part ofLlano de Chajnantor Observatory Edit this on Wikidata
Location(s)Atacama Desert
Coordinates22°58′17″S 67°42′10″W / 22.9714°S 67.7028°W / -22.9714; -67.7028Coordinates: 22°58′17″S 67°42′10″W / 22.9714°S 67.7028°W / -22.9714; -67.7028 Edit this at Wikidata
Altitude4,800 m (15,700 ft) Edit this at Wikidata
Wavelength0.1 mm (3.0 THz)–1.0 mm (300 GHz)
First light2004 Edit this on Wikidata
Telescope styleradio telescope Edit this on Wikidata
Diameter10 m (32 ft 10 in) Edit this at Wikidata
Websitealma.mtk.nao.ac.jp/aste/ Edit this at Wikidata
Atacama Submillimeter Telescope Experiment is located in Chile
Atacama Submillimeter Telescope Experiment
Location of Atacama Submillimeter Telescope Experiment
Commons page Related media on Wikimedia Commons

The Atacama Submillimeter Telescope Experiment (ASTE) is a 10-meter-diameter antenna built by Mitsubishi Electric as a preprototype for ALMA.

The ASTE was deployed to its site on Pampa La Bola, near Cerro Chajnantor and the Llano de Chajnantor Observatory in northern Chile.[1] The antenna shows excellent performance including a surface accuracy of 19 μm (0.00075 in) r.m.s.[2] The telescope is remotely controllable from multiple sites through satellite connections and the Internet. It is operated by the National Astronomical Observatory of Japan and the University of Tokyo, Nagoya University, and Osaka Prefecture University, in cooperation with the Universidad de Chile.

Initially operating at 240 GHz using a focal-plane bolometer array, the telescope was upgraded in 2018 with a heterodyne receiver system operating at 345 GHz and 460 GHz.[3]

Atacama Submillimeter Telescope Experiment complex, Chile.jpg

See also

References

  1. ^ Ezawa, Hajime; Kawabe, Ryohei; Kohno, Kotaro; Yamamoto, Satoshi (2004-09-28). Oschmann, Jr., Jacobus M. (ed.). "The Atacama Submillimeter Telescope Experiment (ASTE)". USA: 763. doi:10.1117/12.551391. Cite journal requires |journal= (help)
  2. ^ Kohno, K. "The Atacama Submillimeter Telescope Experiment". The Cool Universe: Observing Cosmic Dawn, ASP Conference Series, Vol. 344, Proceedings of the conference held 4–8 October 2004 in Valparaiso, Chile. Bibcode:2005ASPC..344..242K.
  3. ^ "The new heterodyne receiver system for the ASTE radio telescope: three-cartridge cryostat with two cartridge-type superconducting receivers". doi:10.1117/12.2313087. Cite journal requires |journal= (help)