Optimization of Moment Masking for CO Spectral Line Surveys

Details Optimization of Moment Masking for CO Spectral Line Surveys Optimization of Moment Masking for CO Spectral Line Surveys

2011-01-07

arxiv.org/abs/1101.1499v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

12 pages, 8 figures. This paper describes the moment masking technique used to produce a noise-suppressed version of the CfA G

Scientific paper

We describe and refine the masked moment method used to suppress noise in
Galactic and extragalactic spectral line surveys. By applying the refined
technique to an essentially noise-free CO molecular cloud survey with Gaussian
noise added, we determine the optimum masking parameters for typical CO surveys
such as those presented in Dame et al. (2001, ApJ, 547, 792)

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