EB070
Ross867
Ross 867 is a known flare star of spectral type M3.5 at a distance of 10.75pc, of which prominent radio flaring activity was serendipitously discovered recently. It is adjacent to a distant cluster which is the subject of low frequency radio observations in which these radio outbursts were discovered. Searches in archival data from JVLA, GMRT and LOFAR have shown past radio flaring activity at several wavelengths. Gaia DR2 confirms the proximity of Ross 867 to a similar M3.5 star Ross 868, for which no activity has been detected yet. We are interested in observing these sources with the EVN to determine brightness temperature and polarization, in order to determine the emission mechanism. Furthermore, we are interested in a comparison between Gaia and VLBI astrometry, for example to constrain the location of the emission. Moreover, if available for VLBI on the scheduled date, we would attempt to include the Dwingeloo Radio Telescope in the array for testing in this observation. In this proposal we request a total observing time of 6 hours at L-band.
Observation pages at the EVN archive:
Context for this dataThis data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197