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Practical Limitations on Astrophysical Observations of Methanol to Investigate Variations in the Proton-to-Electron Mass Ratio
Citation
Ellingsen, S and Voronkov, M and Breen, S, Practical Limitations on Astrophysical Observations of Methanol to Investigate Variations in the Proton-to-Electron Mass Ratio, Physical Review Letters, 107, (27) Article 270801. ISSN 0031-9007 (2011) [Refereed Article]
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Copyright Statement
Copyright 2011 American Physical Society
DOI: doi:10.1103/PhysRevLett.107.270801
Abstract
The possibility of using astrophysical observations of rotational transitions in the methanol molecule to measure, or constrain temporal and spatial variations in the proton-to-electron mass ratio (u) has recently been investigated by several groups. Here we outline some of the practical considerations of making such observations, including both the instrumental and astrophysical limitations which exist at present. This leads us to conclude that such observations are unlikely to be able to improve evidence either for, or against the presence of variations in the proton-to-electron mass ratio by more than an order of magnitude beyond current limits.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Physical Sciences |
| Research Group: | Astronomical sciences |
| Research Field: | Galactic astronomy |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the physical sciences |
| UTAS Author: | Ellingsen, S (Professor Simon Ellingsen) |
| ID Code: | 75526 |
| Year Published: | 2011 |
| Web of Science® Times Cited: | 17 |
| Deposited By: | Mathematics and Physics |
| Deposited On: | 2012-02-02 |
| Last Modified: | 2022-08-25 |
| Downloads: | 0 |
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