The relative orientation between local magnetic field and Galactic plane in low latitude dark clouds

In this work, we study the magnetic field morphology of selected star-forming clouds spread over the galactic latitude (\(b\)) range, \(-10^\circ\) to \(10^\circ\). The polarimetric observation of clouds CB24, CB27 and CB188 are conducted to study the magnetic field geometry of those clouds from ARI...

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Bibliographic Details
Published in:arXiv.org 2022-05
Main Authors: Choudhury, Gulafsha B, Das, Himadri S, Medhi, B J, Pandey, J C, Wolf, S, Dhar, T K, Mazarbhuiya, A M
Format: Article
Language:English
Subjects:
Clouds
Continuum radiation
Latitude
Magnetic fields
Misalignment
Polarimetry
Polarization
Star formation
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Summary:In this work, we study the magnetic field morphology of selected star-forming clouds spread over the galactic latitude (\(b\)) range, \(-10^\circ\) to \(10^\circ\). The polarimetric observation of clouds CB24, CB27 and CB188 are conducted to study the magnetic field geometry of those clouds from ARIES, Manora Peak, Nainital, India. These observations are combined with those of 14 further low latitude clouds available in the literature. Analyzing the polarimetric data of 17 clouds, we find that the alignment between the envelope magnetic field (\(\theta_{B}^{env}\)) and Galactic plane (\(\theta_{GP}\)) of the low-latitude clouds varies with their galactic longitudes (\(l\)). We observe a strong correlation between the longitude (\textit{l}) and the offset (\(\theta_{off}=|\theta_B^{env}-\theta_{GP}|\)) which shows that \(\theta_{B}^{env}\) is parallel to the Galactic plane (GP) when the clouds are situated in the region, \(115^\circ
ISSN:2331-8422
DOI:10.48550/arxiv.2205.04964