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Masers: Precision p...
Masers: Precision probes of molecular gas
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- Richards, A.M.S. (author)
- University of Manchester
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- Sobolev, A. M. (author)
- Ural Federal University
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- Baudry, A. (author)
- Université de Bordeaux,University of Bordeaux
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- Herpin, F. (author)
- Université de Bordeaux,University of Bordeaux
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- Decin, L. (author)
- Katholieke Universiteit Leuven
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- Gray, M. D. (author)
- University of Manchester
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- Etoka, S. (author)
- University of Manchester
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- Humphreys, E. (author)
- European Southern Observatory (ESO)
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- Vlemmings, Wouter, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
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In: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 65:2, s. 780-789
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Abstract
Subject headings
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- Maser emission from water, methanol, silicon monoxide and other molecules can reach brightness temperatures ≫1010 K. Such observations can achieve sub-pc precision for discs around black holes or sub-au scale interactions in protostellar discs and the regions where evolved star winds reach escape velocity. Ultra-high resolution maser observations also provide photon statistics, for fundamental physics experiments. RadioAstron has shown the success – and limitations – of cm-wave maser observations on scales ≪1 mas with sparse baseline coverage. ALMA, APEX and earlier single dish searches have found a wealth of mm and sub-mm masers, some of which probably also attain high brightness temperatures. Masers are ideal for high-resolution observations throughout the radio regime and we need to consider the current lessons for the best observational strategies to meet specific science cases.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- Stars: AGB
- Star formation
- Stars: mass loss
- Planetary systems: protoplanetary disks
- Stars: supergiant
- Masers
Publication and Content Type
- art (subject category)
- ref (subject category)
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