HL Tau: 3-D Polarisation Modelling and Magnetic Field Structure

P.W. Lucas, M. Fukagawa, M. Tamura, A. Chrysostomou, A. Beckford

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

We describe 3-dimensional Monte Carlo modelling of HL Tau in the near infrared with aligned non-spherical grains. JHK linear polarimetry with 0.4-0.6 arcsec resolution from Subaru and UKIRT is fitted in detail, providing information about the structure of the system, the grain properties and perhaps also the magnetic field. Circular polarisation models are also presented, showing how near infrared circular polarimetry will provide the key to measuring magnetic field structure in protostars on the scale of the solar system, provided that circular polarimeters become available. This is illustrated with recently obtained circular polarimetry of the intermediate mass YSO HH135.
Original languageEnglish
Title of host publicationIn: Astronomical Polarimetry: Current Status and Future Directions - ASP Conf Series 343
PublisherAstronomical Society of the Pacific
Pages138-142
ISBN (Print)978-1-58381-277-8, 1-58381-210-5
Publication statusPublished - 2005

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