Investigating the magnetic field structure around star formation cores

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Maps, Cosmic Dust, Infrared Astronomy, Interstellar Magnetic Fields, Linear Polarization, Molecular Clouds, Star Formation, Stellar Cores, Astronomical Polarimetry, Interstellar Matter, Morphology, Stellar Mass

Scientific paper

Linear polarization of dust emission has been mapped around the star forming cloud cores W3 IRS5 and rho Oph SM1, at a wavelength of 800 micrometers. In the former source the data are consistent with magnetic field lines that converge on the central object, whereas in the latter the field lines appear close to parallel. The results are consistent with a current model of star formation in high-mass and low-mass cores, but the presence of other nearby sources, and an outflow in W3 IRS5, could affect this interpretation.

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