The expected emission mechanisms for radio loud M dwarfs include plasma emission, gyrosynchrotron during short lived (<2 hrs) flares, and Electron Cyclotron Maser Instability (ECMI) which can occur in planetary aurorae, and interaction between a star and a planetary companion.
VLBI offers a way to study the nature and location of the radio emission from nearby M dwarfs. We are implementing our own version of the MultiView technique to correct for ionospheric disturbances, which should lead to an astrometric accuracy for the VLBI observations comparable to that of the Gaia mission. This allows us to compare the location of the optical and radio emission.
In this contribution we discuss our ongoing observations of radio loud M dwarfs, in particular of Ross 867 and WX UMa.
VLBI MultiView Astrometry of Radio Stars
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Pre-published on:
March 13, 2023
Published on:
August 22, 2023
Abstract
DOI: https://doi.org/10.22323/1.428.0050
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.