We have surveyed a sample of massive star-forming regions located over a range of distances from the Galactic centre for methyl formate, HCOOCH$_{3}$, and its isotopologues H$^{13}$COOCH$_{3}$ and HCOO$^{13}$CH$_{3}$. The observations were carried out with the APEX telescope in the frequency range 283.4--287.4~GHz. Based on the APEX...
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2014 (v1)Journal articleUploaded on: March 25, 2023
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October 25, 2017 (v1)Conference paper
Circular polarization is produced either in the emission process through the Zeeman effect, or through the transfer of polarized radiation in a magneto-active medium. While the former mechanism provides a direct access to the strength of the magnetic field along the sightline, the conversion of linear to circular polarization reveals particular...
Uploaded on: February 28, 2023