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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 () 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 and Space Sciences
Research Field:Galactic Astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Ellingsen, S (Professor Simon Ellingsen)
ID Code:75526
Year Published:2011
Web of Science® Times Cited:9
Deposited By:Mathematics and Physics
Deposited On:2012-02-02
Last Modified:2017-10-06
Downloads:0

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