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|Title:||Masers: Precision Probes of Molecular Gas|
|Authors:||Richards, A. M. S.|
Gray, M. D.
Humphreys, E. M. L.
|Citation:||Masers: Precision Probes of Molecular Gas / A. M. S. Richards, A. Sobolev, A. Baudry et al. // Advances in Space Research. — 2020. — Vol. 65. — Iss. 2. — P. 780-789.|
|Abstract:||Maser emission from water, methanol, silicon monoxide and other molecules can reach brightness temperatures [Formula presented] 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 [Formula presented] 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. © 2019 COSPAR.|
PLANETARY SYSTEMS: PROTOPLANETARY DISKS
STARS: MASS LOSS
PLANETARY SYSTEMS:PROTOPLANETARY DISKS
|metadata.dc.description.sponsorship:||AMSR is employed by the UK ALMA Regional Centre, supported by STFC. AMS was supported by the Russian Science Foundation (grant 18-12-00193). We thank the referees for very helpful comments which have enriched this paper.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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