SAO Submillimeter Array in Hawaii Is Dedicated

Close
Usage Conditions Apply
The Smithsonian Institution Archives welcomes personal and educational use of its collections unless otherwise noted. For commercial uses, please contact photos@si.edu.
Print

Narrow Your Results

Reset

Filter Your Results

Smithsonian Secretaries Information

Close Browse records and papers of the Smithsonian Secretaries, from 1846 until today. Pre-set filters help narrow searches by individuals who have held that office.

Expeditions Information

Close Browse records and papers documenting scientific and collecting expeditions either affiliated with the Smithsonian, or with which Smithsonian researchers participated. Pre-set filters help narrow searches by geographic regions predominantly represented in expedition records.

Professional Societies Information

Close Browse records of professional societies closely associated with the Smithsonian, that focus on areas of scientific research and museum studies. Pre-set filters help narrow searches by major topics and disciplines.
 

Summary

On November 22, 2003, the Smithsonian Astrophysical Observatory's Submillimeter Array atop Mauna Kea, Hawaii, is dedicated. The Submillimeter Array (SMA) explores the universe by detecting light of colors which are not visible to the human eye. It receives millimeter and submillimeter radiation, so named because its wavelength ranges from 0.3 to 1.7 millimeter, or 0.01 to 0.07 inches. The SMA, the world's first imaging interferometric telescope at the submillimeter wavelengths, consists of 8 movable antennas that can be positioned along the sides of a Releaux triangle to provide optimal imaging quality. Each antenna is composed of a smooth parabolic reflector 6 meters (19 and 2/3 feet) in diameter. The signals from the antennas are amplified and combined electronically to give the resolution equivalent to an antenna of 0.5 km (0.3 miles) across.

Subject

  • Smithsonian Astrophysical Observatory
  • Smithsonian Astrophysical Observatory Field stations

Category

Chronology of Smithsonian History

Notes

  • Smithsonian Institution 2003 Annual Report, Washington, D.C.: Smithsonian Books, 2004, pp. 12-13.
  • "The Submillimeter Array," by Paul T.P. Ho, James M. Moran and Kwok Yung Lo, http://sma-www.cfa.harvard.edu/sciDoc/general.html, accessed 04/28/2008.

Contact information

Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu

Date

November 22, 2003

Topic

  • Astrophysics
  • New Programs
  • Submillimeter astronomy
  • Telescopes
  • Submillimeter waves
  • Astronomy

Place

Hawaii

Full Record

View Full Record