2011/01/07 by T. M. Dame, Dame, T. M. · 4 citations
Chemistry · Decision Sciences · Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Acoustics #Algorithm #Artificial intelligence #Astronomy #Astrophysics of Galaxies (astro-ph.GA) #Atmospheric Ozone and Climate #Computer science #FOS: Physical sciences #Gaussian #Gaussian noise #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Line (geometry) #Masking (illustration) #Mathematics #Moment (physics) #Noise (video) #Noise reduction #Noise spectrum #Physics #Scientific Measurement and Uncertainty Evaluation #Spectral line #Spectroscopy and Laser Applications #Statistical physics #astro-ph.GA #astro-ph.IM
paper · pdf · doi:10.48550/arxiv.1101.1499
12 pages, 8 figures. This paper describes the moment masking technique used to produce a noise-suppressed version of the CfA Galactic CO survey
arxiv created 2011/01/07 · openalex publication_date 2011/01/07 · arxiv updated 2011/01/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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)