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A Dirty WindowObserving the Diffuse ISM: Making Sense of the Radio Observations

A Dirty Window: Observing the Diffuse ISM: Making Sense of the Radio Observations [The diffuse interstellar medium is studied primarily via radio spectroscopic techniques as far as the colder atomic and low-density molecular structures are concerned. In this chapter, we discuss some of the practical considerations involved in making and analyzing these observations. Some of the topics discussed here should be useful in preparing observing proposals or reading observational papers on this medium. Topics covered include basic radio spectroscopic and mapping techniques, Stokes parameters, antenna temperature conventions, radio frequency interference, virial analysis, principal component analysis, and statistical analysis of the velocity fluctuations.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A Dirty WindowObserving the Diffuse ISM: Making Sense of the Radio Observations

Part of the Astrophysics and Space Science Library Book Series (volume 442)
Magnani, Loris; Shore, Steven N.
Springer Journals — Apr 9, 2017
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22 pages

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Publisher
Springer Berlin Heidelberg
Copyright
© Springer-Verlag GmbH Germany 2017
ISBN
978-3-662-54348-1
Pages
107 –129
DOI
10.1007/978-3-662-54350-4_4
Publisher site
See Chapter on Publisher Site

Abstract

[The diffuse interstellar medium is studied primarily via radio spectroscopic techniques as far as the colder atomic and low-density molecular structures are concerned. In this chapter, we discuss some of the practical considerations involved in making and analyzing these observations. Some of the topics discussed here should be useful in preparing observing proposals or reading observational papers on this medium. Topics covered include basic radio spectroscopic and mapping techniques, Stokes parameters, antenna temperature conventions, radio frequency interference, virial analysis, principal component analysis, and statistical analysis of the velocity fluctuations.]

Published: Apr 9, 2017

Keywords: Brightness Temperature; Radio Telescope; Molecular Cloud; Column Density; Frequency Switching

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