Observations of Anomalous Microwave Emission from HII Regions
Author
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-07
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
I give a summary of the observations of Anomalous Microwave Emission (AME) from HII regions.
AME has been detected in, or in the vicinity of, HII regions.
Given the difficulties in measuring accurate SEDs over a wide range of frequencies and in complex environments, many of these detections require more data to confirm them as emitting significant AME.
The contribution from optically thick free-free emission from UCHII regions may be also be significant in some cases.
The AME emissivity, defined as the ratio of the AME brightness to the 100 μm brightness, is comparable to the value observed in high-latitude diffuse cirrus in some regions, but is significantly lower in others.
However, this value is dependent on the dust temperature.
More data, both at high frequencies (>~5 GHz) and high resolution (~1′ or better) is required to disentangle the emission processes in such complex regions.
American Psychological Association (APA)
Dickinson, Clive. 2013. Observations of Anomalous Microwave Emission from HII Regions. Advances in Astronomy،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-450823
Modern Language Association (MLA)
Dickinson, Clive. Observations of Anomalous Microwave Emission from HII Regions. Advances in Astronomy No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-450823
American Medical Association (AMA)
Dickinson, Clive. Observations of Anomalous Microwave Emission from HII Regions. Advances in Astronomy. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-450823
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450823