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Kosma Basho
The Kölner Observatorium für SubMillimeter Astronomie (KOSMA) was a radio telescope for submillimeter astronomy located at on Gornergrat near Zermatt (Switzerland). It was operated by I. Physikalisches Institut, University of Cologne, and Radioastronomisches Institut, University of Bonn. The telescope had a primary diameter of , and a secondary diameter of . It was equipped with heterodyne receivers covering 210 to 820 GHz, corresponding to wavelengths between 0.35 and 1.4 mm, for observations of lines from the interstellar medium. Because of the good climatic conditions at the altitude of 3135 m (10285 ft), astronomical observatories have been located in both towers of the Gornergrat Kulm Hotel, Kulmhotel at Gornergrat since 1967. In 1985, the KOSMA telescope was installed in the southern tower by the Universität zu Köln and, in the course of 1995, replaced by a new dish and mount. In the northern tower, a 1.5 m infrared telescope was operated until 2005 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Telescope
A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency portion of the electromagnetic spectrum emitted by astronomical objects, just as optical telescopes are the main observing instrument used in traditional optical astronomy which studies the light wave portion of the spectrum coming from astronomical objects. Unlike optical telescopes, radio telescopes can be used in the daytime as well as at night. Since astronomical radio sources such as planets, stars, nebulas and galaxies are very far away, the radio waves coming from them are extremely weak, so radio telescopes require very large antennas to collect enough radio energy to study them, and extremely sensitive receiving equipment. Radio telescopes are typically large parabolic ("dish") antennas similar to those employed in tracking an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gornergrat Infrared Telescope
The Telescopio InfraRosso del Gornergrat (TIRGO), or the Gornergrat Infrared Telescope, was located on the northern tower of the Kulm Hotel at Gornergrat ( altitude) near Zermatt, Switzerland. It was a Cassegrain telescope with a tip-tilt correcting secondary and optimized for infrared observations, but was decommissioned in March 2005. The telescope and related instrumentation were run by the Istituto di Radioastronomia (IRA - C.N.R.), sezione di Firenze (former CAISMI), with the assistance of the Osservatorio Astrofisico di Arcetri and the Dipartimento di Astronomia e Scienza dello Spazio of the University of Florence The University of Florence (Italian: ''Università degli Studi di Firenze'', UniFI) is an Italian public research university located in Florence, Italy. It comprises 12 schools and has around 50,000 students enrolled. History The first universi .... See also * List of largest optical telescopes in the 20th century * List of largest infrared telescopes In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submillimetre Telescopes
Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths (i.e., terahertz radiation) of the electromagnetic spectrum. Astronomers place the submillimetre waveband between the far-infrared and microwave wavebands, typically taken to be between a few hundred micrometres and a millimetre. It is still common in submillimetre astronomy to quote wavelengths in 'microns', the old name for micrometre. Using submillimetre observations, astronomers examine molecular clouds and dark cloud cores with a goal of clarifying the process of star formation from earliest collapse to stellar birth. Submillimetre observations of these dark clouds can be used to determine chemical abundances and cooling mechanisms for the molecules which comprise them. In addition, submillimetre observations give information on the mechanisms for the formation and evolution of galaxies. From the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science And Technology In Switzerland
Science and technology in Switzerland play an important role in the Swiss economy, which has very few natural resources that are available in the country. The Swiss National Science Foundation, mandated by the Federal government, is the most important institute for promoting scientific research. The raw output of scientific research from Switzerland consistently ranks within the top 20. Switzerland was ranked 1st in the Global Innovation Index in 2021 Institutions Universities The first university, the University of Basel, was founded in 1460 and today the country has twelve universities. *University of Basel, Basel *University of Bern, Bern *University of Fribourg, Fribourg *University of Geneva, Geneva *University of Neuchâtel, Neuchâtel * University of Lausanne (UNIL), Lausanne *University of Lucerne, Lucerne *University of Lugano, Lugano *University of St. Gallen (HSG), St. Gallen *University of Zurich, Zürich * Swiss Federal Institute of Technology Zurich (ETH Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Submillimeter Observatory
The Caltech Submillimeter Observatory (CSO) was a 10.4-meter (34 ft) diameter submillimeter wavelength telescope situated alongside the 15-meter (49 ft) James Clerk Maxwell Telescope (JCMT) at Mauna Kea Observatories. It was engaged in submillimeter astronomy, of the terahertz radiation band. The telescope closed on September 18, 2015. As of April 2019, the telescope is set to be dismantled and its site remediated in the near future as part of the Mauna Kea Comprehensive Management Plan. History In 1973 Robert Leighton proposed to the NSF to build four 10.4 meter diameter parabolic dish radio antennas. Three of these Leighton antennas were to be used as a mm-wave interferometer to be sited at OVRO, and the fourth was to be used as a single submillimeter telescope at a high mountain site. The proposal was approved (AST 73-04908), but the NSF insisted that the mm-wave array had to be completed before work on the submillimeter telescope could be started, which delaye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clerk Maxwell Telescope
The James Clerk Maxwell Telescope (JCMT) is a submillimetre-wavelength radio telescope at Mauna Kea Observatory in Hawaii, US. The telescope is near the summit of Mauna Kea at . Its primary mirror is 15 metres (16.4 yards) across: it is the largest single-dish telescope that operates in submillimetre wavelengths of the electromagnetic spectrum (far-infrared to microwave).W.S. Holland et al., SCUBA: a common-user submillimetre camera operating on the James Clerk Maxwell Telescope, Monthly Notices of the Royal Astronomical Society: Letters Volume 303 Issue 4, Pages 659–672, 2002 Scientists use it to study the Solar System, interstellar dust and gas, and distant galaxies. The JCMT started operations in 1987, and was funded until February 2015 by a partnership between the United Kingdom and Canada, and the Netherlands. It was operated by the Joint Astronomy Centre and was named in honour of mathematical physicist James Clerk Maxwell. In March 2015 the operation of the JCMT was ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tibet
Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, Monpa, Tamang people, Tamang, Qiang people, Qiang, Sherpa people, Sherpa and Lhoba peoples and now also considerable numbers of Han Chinese and Hui people, Hui settlers. Since Annexation of Tibet by the People's Republic of China, 1951, the entire plateau has been under the administration of the People's Republic of China, a major portion in the Tibet Autonomous Region, and other portions in the Qinghai and Sichuan provinces. Tibet is the highest region on Earth, with an average elevation of . Located in the Himalayas, the highest elevation in Tibet is Mount Everest, Earth's highest mountain, rising 8,848.86 m (29,032 ft) above sea level. The Tibetan Empire emerged in the 7th century. At its height in the 9th century, the Tibet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damxung County
Damxung is a county of Lhasa City, lying to the north of its main center of Chengguan, in the Tibet Autonomous Region of the People's Republic of China. Its administrative seat is Damquka. The terrain is rugged, including the western Nyenchen Tanglha Mountains, with their highest peak rising to . As of 2013 the population was 40,000, with most of the people engaged in animal husbandry. History Damxung means "select pasture" in the Tibetan language. The Damxung steppe was gifted by the 5th Dalai Lama to Güshi Khan during the latter's reign. A number of Mongol cavalry soldiers settled down in the area, who became known as Mongol Eight Banners of Dam. After Güshi Khan's death in 1679, the area was possessed by Ngakpa Tratsang of Sera Monastery. From 1715 to 1912, the former Mongol Eight Banners land was directly administered by the Qing Dynasty Amban. Following the Qing's collapse, the area once again came under possession of Sera Monastery, which established Damxung Dzong u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangbajain
Yangbajain (also spelled Yangbajing; ) is a town approximately north-west of Lhasa, halfway to Damxung in the Tibet Autonomous Region of China. The town lies just south of the Nyainqêntanglha Mountains, in an upland lush green valley surrounded by the tents of nomads with grazing yak and sheep populating the hillside. It is the site Yangpachen Monastery, which was historically the seat of the Shamarpas of Karma Kagyü and the Yangbajing International Cosmic Ray Observatory. Geothermal field The area is famous for the Yangbajain Geothermal Field, which has been harnessed to produce electricity for the capital Lhasa. There is a thermoelectric power plant on the edge of the Yangbajain field covering 20–30 square kilometers. The power plant was established in 1977, and was the first development of geothermal power not only in Tibet but in the whole of China. The Yangbajain hot springs field is at an elevation of which makes it the highest elevation set of hot springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gornergrat Kulm Hotel
The Gornergrat Kulm Hotel is a hotel and observatory located on the Gornergrat, at 3,120 metres above sea level. It can be reached from Zermatt via the Gornergrat railway, the terminus station being located 100 metres away. The hotel includes an observatory, two restaurants and a small shopping mall. A first hotel was built on the Gornergrat in 1896, two years before the completion of the Gornergrat rack railway. As the tourist traffic increased, the current larger hotel was built between 1897 and 1907. Given the clean air and good light conditions of the area, a dome was built on each of the two towers of the hotel in 1996. The KOSMA telescope was installed in the southern tower while the Gornergrat Infrared Telescope was installed in the northern tower. gornergrat-kulm.ch See also * |
Submillimeter Astronomy
Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths (i.e., terahertz radiation) of the electromagnetic spectrum. Astronomers place the submillimetre waveband between the far-infrared and microwave wavebands, typically taken to be between a few hundred micrometres and a millimetre. It is still common in submillimetre astronomy to quote wavelengths in 'microns', the old name for micrometre. Using submillimetre observations, astronomers examine molecular clouds and dark cloud cores with a goal of clarifying the process of star formation from earliest collapse to stellar birth. Submillimetre observations of these dark clouds can be used to determine chemical abundances and cooling mechanisms for the molecules which comprise them. In addition, submillimetre observations give information on the mechanisms for the formation and evolution of galaxies. From the gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstellar Medium
In astronomy, the interstellar medium is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space. The energy that occupies the same volume, in the form of electromagnetic radiation, is the interstellar radiation field. The interstellar medium is composed of multiple phases distinguished by whether matter is ionic, atomic, or molecular, and the temperature and density of the matter. The interstellar medium is composed, primarily, of hydrogen, followed by helium with trace amounts of carbon, oxygen, and nitrogen. The thermal pressures of these phases are in rough equilibrium with one another. Magnetic fields and turbulent motions also provide pressure in the ISM, and are typically more important, dynamically, than the thermal pressure is. In the interstellar medium, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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