Landing page for project ED049

During our over 10-year long observational campaign we noticed unusual behavior of methanol masers in G121.298+0.659. Variability of chosen spectral features is superimposed with constant decrease of their peak flux density, while others show strong radial velocity drifts, reaching values as high as 0.25 km/s/yr. In this project we aim to examine maser structure at mas scale in order to study causes of such variability and, since increase of the variability was observed before previous accretion bursts (i.e. S255-NIRS3), such phenomennon might happen also in G121.298+0.659, giving an opportunity to recover maser structure before and during the expected burst.

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