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The magnetic field strength and energetics of OMC 1

2017-09-14

http://www.star.uclan.ac.uk/~kpattle/

  • Speaker : Dr. Kate Pattle (University of Central Lancashire, UK)
  • Date : 2017-11-22 16:00 ~ 17:00
  • Location : JYS 331-2
  • Host : Dr. Woojin Kwon

We are entering a new era of astronomical polarimetry, in which new and stringent observational constraints are being placed on the role of magnetic fields in star formation.   In this talk, I will present James Clerk Maxwell Telescope (JCMT) POL-2 polarimetric observations of the OMC 1 region of the Orion A filament, taken as part of the BISTRO (B-Fields in Star-Forming Region Observations) survey.  I will discuss modifications to the Chandrasekhar-Fermi method which allow estimation of plane-of-sky magnetic field strengths in the presence of a magnetic field showing large-scale, ordered variation, and will derive an estimate of the magnetic field strength in OMC 1.  I will discuss the energetic importance and evolutionary history of the magnetic field in the OMC 1 region, with particular emphasis on the interaction between the magnetic field and the explosive BN/KL outflow.

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