Heinrich Hertz Submillimeter Telescope

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The Submillimeter Telescope (SMT), formerly known as the Heinrich Hertz Submillimeter Telescope, is a submillimeter wavelength radio telescope located on Mount Graham, Arizona, US. It is a 10-meter-wide parabolic dish inside a building to protect it from bad weather. The building front doors and roof are opened when the telescope is in use. The telescope's construction was finished in 1993. Along with the 12 Meter Telescope on Kitt Peak, this telescope is maintained by the Arizona Radio Observatory, a division of Steward Observatory at the University of Arizona.

The dryness of the air around and above Mount Graham is important for extremely high frequency (EHF) radio and far-infrared observations – a region of the spectrum where the electromagnetic waves are strongly attenuated by any water vapor or clouds in the air.

This telescope is used nine to ten months of the year, and it is stowed only when there is too much water vapor in the atmosphere, primarily during the summertime. This telescope is one of the telescopes that make up Mount Graham International Observatory.

## See also

* Mount Graham International Observatory
* James Clerk Maxwell Telescope submillimeter telescope at Mauna Kea Observatory
* List of observatories
* Lists of telescopes

## References

## External links

* Official website at the Arizona Radio Observatory
* Discovery Park – Guided MGIO tours for the public

* v
* t
* e

Radio astronomy

Concepts|

* Units (watt and jansky)
* Radio telescope (Radio window)
* Astronomical interferometer (History)
* Very Long Baseline Interferometry (VLBI)
* Astronomical radio source

Radio telescopes
(List)|

| Individual
telescopes|

* 500 meter Aperture Spherical Telescope (FAST, China)
* Arecibo Observatory (Puerto Rico, US)
* Caltech Submillimeter Observatory (CSO, US)
* Effelsberg Telescope (Germany)
* Galenki RT-70 (Russia)
* Green Bank Telescope (West Virginia, US)
* Large Millimeter Telescope (Mexico)
* Lovell Telescope (UK)
* Ooty Telescope (India)
* Qitai Radio Telescope (China)
* RATAN-600 Radio Telescope (Russia)
* Sardinia Radio Telescope (Italy)
* Suffa RT-70 (Uzbekistan)
* Usuda Telescope (Japan)
* UTR-2 decameter radio telescope (Ukraine)
* Yevpatoria RT-70 (Russia)

Southern Hemisphere
HartRAO (South Africa)
Parkes Observatory (Australia)
Warkworth Radio Astronomical Observatory (NZ)

|

Interferometers|

* Allen Telescope Array (ATA, California, US)
* Atacama Large Millimeter Array (ALMA, Chile)
* Australia Telescope Compact Array (ATCA, Australia)
* Australian Square Kilometre Array Pathfinder (ASKAP, Australia)
* Canadian Hydrogen Intensity Mapping Experiment (CHIME, Canada)
* Combined Array for Research in Millimeter-wave Astronomy (CARMA, California, US)
* European VLBI Network (Europe)
* Event Horizon Telescope (EHT)
* Giant Metrewave Radio Telescope (GMRT, India)
* Green Bank Interferometer (GBI, West Virginia, US)
* Korean VLBI Network (KVN, South Korea)
* Large Latin American Millimeter Array (LLAMA, Argentina/Brazil)
* Long Wavelength Array (LWA, New Mexico, US)
* Low-Frequency Array (LOFAR, Netherlands)
* MeerKAT (South Africa)
* Molonglo Observatory Synthesis Telescope (MOST, Australia)
* Multi-Element Radio Linked Interferometer Network (MERLIN, UK)
* Murchison Widefield Array (MWA, Australia)
* Northern Cross Radio Telescope (Italy)
* Northern Extended Millimeter Array (France)
* One-Mile Telescope (UK)
* Primeval Structure Telescope (PaST, China)
* Square Kilometre Array (SKA, Australia, South Africa)
* Submillimeter Array (SMA, US)
* Very Large Array (VLA, New Mexico, US)
* Very Long Baseline Array (VLBA, US)
* Westerbork Synthesis Radio Telescope (WSRT, Netherlands)

Space-based|

* HALCA (Japan)
* Spektr-R (Russia)

Observatories|

* Algonquin Radio Observatory (Canada)
* Haystack Observatory (US)
* Jodrell Bank Observatory (UK)
* Mullard Radio Astronomy Observatory (UK)
* National Radio Astronomy Observatory (US)
* Nançay Radio Observatory (France)
* Onsala Space Observatory (Sweden)
* Pushchino Radio Astronomy Observatory (PRAO ASC LPI, Russia)
* Special Astrophysical Observatory of the Russian Academy of Science (SAORAS, Russia)
* Warkworth Radio Astronomical Observatory

Multi-use|

* DRAO (Canada)
* ESA New Norcia (Australia)
* PARL (Canada)

People|

* Elizabeth Alexander
* John G. Bolton
* Edward George Bowen
* Ronald Bracewell
* Jocelyn Bell Burnell
* Arthur Covington
* Nan Dieter-Conklin
* Frank Drake
* Antony Hewish
* Karl Guthe Jansky
* Kenneth Kellermann
* Frank J. Kerr
* John D. Kraus
* Bernard Lovell
* Jan Oort
* Joseph Lade Pawsey
* Ruby Payne-Scott
* Arno Penzias
* Grote Reber
* Martin Ryle
* Govind Swarup
* Gart Westerhout
* Paul Wild
* Robert Wilson

Related articles|

* Radio propagation
* Interferometry
* Aperture synthesis
* SETI (Wow! signal, Radio signal from HD 164595)
* Pulsar timing array
* Cosmic microwave background radiation

* Submillimetre astronomy
* Infrared astronomy
* Optical astronomy
* High-energy astronomy
* Gravitational-wave astronomy

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