Magnetic fields and star formation - CN Zeeman mapping

Crutcher, Richard

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https://hdl.handle.net/2142/59147 Copy

Description

Title

Magnetic fields and star formation - CN Zeeman mapping

Author(s)

Crutcher, Richard

Issue Date

2014-06-17

Keyword(s)

Mini-symposium: Astronomical Molecular Spectroscopy in the Age of ALMA

Date of Ingest

• 2014-12-08T19:16:38Z
• 2015-04-14T18:41:58Z

Abstract

Zeeman observations are essential since they provide the only direct measurement of magnetic field strengths in molecular clouds. Earlier single-dish CN Zeeman N=1-0 measurements of field strengths toward high-mass star formation regions such as W3OH and DR21OH were with 23 arcsec resolution; needed now are higher angular resolution Zeeman maps of magnetic field strengths. Our CARMA Zeeman-effect commissioning observations reported here were carried out for the N=2-1 CN transitions with \~3 arcsec resolution toward W3OH and DR21OH. These are the first interferometric CN Zeeman observations of dense molecular cores. Results will be presented with discussion of the astrophysical implications and the implications for future ALMA observations.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Genre of Resource

Conference Paper / Presentation

Language

en

Permalink

http://hdl.handle.net/2142/59147

DOI

https://doi.org/10.15278/isms.2014.TF15

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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