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A Study of Magnetic Fields on Bright-Rimmed Clouds

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Takayoshi Kusune  and
Koji Sugitani
Takayoshi Kusune
Affiliation:
Graduate School of Natural Science, Nagoya City University, Mizuho-ku, Nagoya 467-8501, Japan email: [email protected]
Koji Sugitani
Affiliation:
Graduate School of Natural Science, Nagoya City University, Mizuho-ku, Nagoya 467-8501, Japan email: [email protected]
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Abstract

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We have made near-infrared (JHKs) imaging polarimetry toward 24 bright-rimmed clouds in the southern hemisphere in order to reveal their magnetic field structures. The obtained polarization vector maps show that the magnetic field directions inside the bright rim are different from its ambient magnetic field direction, implying that magnetic field structures just inside the ionized front of the clouds are due to the gas compression by UV radiation from nearby massive star. Our investigation into the relation between the magnetic field configuration and the shape of the cloud suggests that the magnetic field configuration affects the evolution of the cloud shape.

Keywords

ISM: cloudsISM: magnetic fieldsHII regionsinfrared: starspolarizationISM: structure
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E44
Copyright
Copyright © International Astronomical Union 2016 

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