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Studies of Anomalous Microwave Emission (AME) with the SKA

Dickinson, Clive and Ali-Haïmoud, Y. and Beswick, R. J. and Casassus, S. and Cleary, K. and Draine, B. T. and Génova-Santos, R. and Grainge, K. and Hoang, T. C. and Lazarian, A. and Murphy, E. J. and Paladini, R. and Peel, M. W. and Perrott, Y. and Rubiño-Martin, J.-A. and Scaife, A. and Tibbs, C. T. and Verstraete, L. and Vidal, M. and Watson, R. A. and Ysard, N. (2015) Studies of Anomalous Microwave Emission (AME) with the SKA. In: Advancing Astrophysics with the Square Kilometre Array. Proceedings of Science. Vol.215. SISSA , Trieste, Italy, Art. No. 124. ISBN 9781909204706.

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In this chapter, we will outline the scientific motivation for studying Anomalous Microwave Emission (AME) with the SKA. AME is thought to be due to electric dipole radiation from small spinning dust grains, although thermal fluctuations of magnetic dust grains may also contribute. Studies of this mysterious component would shed light on the emission mechanism, which then opens up a new window onto the interstellar medium (ISM). AME is emitted mostly in the frequency range ~10–100 GHz, and thus the SKA has the potential of measuring the low frequency side of the AME spectrum, particularly in band 5. Science targets include dense molecular clouds in the Milky Way, as well as extragalactic sources. We also discuss the possibility of detecting rotational line emission from Poly-cyclic Aromatic Hydrocarbons (PAHs), which could be the main carriers of AME. Detecting PAH lines of a given spacing would allow for a definitive identification of specific PAH species.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Draine, B. T.0000-0002-0846-936X
Murphy, E. J.0000-0001-7089-7325
Paladini, R.0000-0002-5158-243X
Additional Information:© 2015 owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-ShareAlike. Published on: 2015 May 29. CD acknowledges support from an ERC Starting (Consolidator) Grant (no 307209).
Funding AgencyGrant Number
European Research Council (ERC)307209
Series Name:Proceedings of Science
Record Number:CaltechAUTHORS:20180821-142709022
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88990
Deposited By: Tony Diaz
Deposited On:21 Aug 2018 22:49
Last Modified:03 Oct 2019 20:12

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