Resolved Magnetic Field Map of GRSMC 45.60+0.30

Details Resolved Magnetic Field Map of GRSMC 45.60+0.30 Resolved Magnetic Field Map of GRSMC 45.60+0.30

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21812915m&link_type=abstract

American Astronomical Society, AAS Meeting #218, #129.15; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first resolved magnetic field strength map for the quiescent molecular cloud GRSMC 45.60+0.30. GRSMC 45.60+0.30 subtends approximately 40 pc at a distance of 1.88 kpc. Polarization data were taken using the 1.8m Perkins telescope with the Mimir instrument. The data were processed using the custom IDL reduction pipeline for the GPIPS project, returning starlight polarization information in and around the cloud. Using the Chandrasekhar-Fermi method, the polarization angle dispersions were combined with the cloud radius, peak intensity, and velocity dispersion from the 13CO Galactic Ring Survey to create a resolved magnetic field map. An average magnetic field strength of approximately 4 microgauss was found across the cloud, with increases to around 13 microgauss in the 7 'magnetic cores.' This work was partially supported by NSF AST 09-07790.

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