• Title/Summary/Keyword: polarisation: dust

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MAGNETIC FIELDS IN BRIGHT-RIMMED CLOUDS AND COMETARY GLOBULES TRACED USING R-BAND POLARIZATION OBSERVATIONS

  • SOAM, ARCHANA;GOPINATHAN, MAHESWAR;LEE, CHANG WON;BHATT, HRISH
    • Publications of The Korean Astronomical Society
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    • v.30 no.2
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    • pp.87-88
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    • 2015
  • We present results of our R-band polarimetry of a bright-rimmed cloud, IC1396A (with BRC 36), associated with the H II region S131 and the cometary globule LDN 1616 to study their magnetic field geometry. The distances of these clouds have been reported to be ~ 750 pc and ~ 450 pc, respectively in the literature. The young open cluster Trumpler 37 in the vicinity of IC1396A and the high mass stars in the Orion belt near L1616 are found to be responsible for the structure of these clouds. We made polarimetry of foreground stars inferred from their distances measured by the Hipparcos satellite to subtract the foreground contribution to the observed polarization results. We discuss the optical polarimetric results and compare our findings with MHD simulations towards BRCs and CGs.