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  • Richards, A.M.S., et al. (author)
  • Masers: Precision probes of molecular gas
  • 2020
  • In: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 65:2, s. 780-789
  • Journal article (peer-reviewed)abstract
    • 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.
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Vlemmings, Wouter, 1 ... (1)
Decin, L. (1)
Humphreys, E. (1)
Baudry, A. (1)
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Richards, A. M. S. (1)
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Chalmers University of Technology (1)
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