Landing page for project RB010

A new accretion burst event has likely been identified in a high-mass protostar. An increase in flux of the heat-tracing 6.7 GHz methanol maser gave first hints to enhanced radiation activity and this was then confirmed by NIR imaging data obtained a few days ago by DDT. Recently our team has found great utility in multi-epoch VLBI imaging of the 6.7 GHz methanol maser during these very rare events by using the heat propagation to image different parts of the protostellar environment. We hope to build upon this worl by conducting a new VLBI campaign (EVN, EAVN, VLBA) of this active accretion burst. This source has been imaged by the EVN previously, which would stand as an excellent pre-burst map for comparison. The past EVN map shows a ring of masers. Such rings are occasionally seen but their origins are yet to be explained. By investigating the changes in the ring structure in response to additional heating from accretion we may discover what structures give rise to these rings.

This 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