Landing page for project EV027

Luminous outbursts, as tracers of Tidal Disruption Events (TDEs) are observed at different wavelengths when a star approaches a supermassive black hole very closely. Carrying out high high-resolution radio observations are essential to follow-up the evolution of TDEs months or years after the event and potentially catch the formation of jets. AT2019aalc, is one of the three TDEs found to be coincident with high-energy neutrino events so far and notably produces the highest neutrino fluence. The object was observed in the first and second epochs of the VLA Sky Survey (VLASS) with peak flux densities of 2.9 mJy and 5.7 mJy, respectively. The doubling of the peak flux density in a timescale of only 2.5 years potentially suggests jet formation or increased activity of a preexisted jet. Evolving jet activity could be potentially favored as a mechanism responsible for neutrino production

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