Methodology for a Planck/Herschel analysis of the interplay between filaments and magnetic fields in star forming regions
Abstract
Interstellar matter in star forming regions appears to form filamentary structures, which were suggested to line up either parallel or perpendicular to the magnetic field. Our purpose is to investigate this possible alignment further, based on a combined analysis of Herschel and Planck data obtained towards a large variety of star forming regions. As a first step, we developed an optimized version of the original Rolling Hough Transform code, particularly well suited to extract and analyse the orientation of filamentary structures over a broad range of densities, from striations to dense filaments. In this paper, we present an overview of our new method, called the Rolling Radon Transform and we describe the preliminary results obtained for a star forming region at high galactic latitude.
- Publication:
-
SF2A-2019: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
- Pub Date:
- December 2019
- Bibcode:
- 2019sf2a.conf...77C
- Keywords:
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- Star formation;
- ISM;
- Magnetic field;
- Polarization