VLBI spectral line polarization observations of the OH masers in the supergiant IRC+10420

A.J. Kemball, P.J. Diamond

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

Abstract

We present spectral line polarization observations of the 1612 MHz OH masers in the supergiant IRC+10420. Our observations indicate that the individual maser components are highly circularly polarized in contrast to the polarization observed in total power spectra. Linear polarization of some features was also detected. We estimate that, at the distance of the 1612 MHz OH masers from the star, the magnetic field has a strength of 1-2 mG.
Original languageEnglish (US)
Title of host publicationAstrophysical Masers
EditorsA.W. Clegg, G.E. Nedoluha
PublisherSpringer-Verlag
Pages369-372
Number of pages4
DOIs
StatePublished - 1993

Publication series

NameLecture Notes in Physics
Volume412

Keywords

  • Hydroxyl Emission, Interstellar Masers, Line Spectra, Polarized Radiation, Supergiant Stars, Very Long Base Interferometry, Astronomical Spectroscopy, Circular Polarization, Spatial Distribution, Stellar Magnetic Fields, Stellar Spectra

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