Analysis of Galactic molecular cloud polarization maps: a review of the methods

Analysis of Galactic molecular cloud polarization maps: a review of the methods

The Davis-Chandrasekhar-Fermi (DCF) method using the Angular Dispersion Function (ADF), the Histogram of Relative Orientations (HROs) and the Polarization-Intensity Gradient Relation (P-IGR) are the most common tools used to analyse maps of linearly polarized emission by thermal dust grains at submi...

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Bibliographic Details
Published in:EPJ Web of Conferences 2020, Vol.228, p.19
Main Author: Poidevin, Frédérick
Format: Article
Language:eng
Subjects:
Cosmic dust
Emission analysis
Filaments
Histograms
Linear polarization
Molecular clouds
Star formation
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Summary:The Davis-Chandrasekhar-Fermi (DCF) method using the Angular Dispersion Function (ADF), the Histogram of Relative Orientations (HROs) and the Polarization-Intensity Gradient Relation (P-IGR) are the most common tools used to analyse maps of linearly polarized emission by thermal dust grains at submilliter wavelengths in molecular clouds and star-forming regions. A short review of these methods is given. The combination of these methods will provide valuable tools to shed light on the impact of the magnetic fields on the formation and evolution of subparsec scale hub-filaments that will be mapped with the NIKA2 camera and future experiments.
ISSN:2100-014X
2101-6275
2100-014X