Landing page for project RSM04

The disruption of a star within the tidal radius of a dormant supermassive black hole (mass >= 1.e6 solar masses) at the centers of galaxies results in a thermal ultraviolet/X-ray flare powered by the accretion onto the compact object with the magnitude decaying as a power law with index 5/3 over months to years. The accreted stellar debris can power a transient relativistic jet upon interaction with the surrounding circum-nuclear medium that can produce non-thermal radio emission. The transient AT2019dsg was discovered on 4 April 2019 by the Zwicky Transient Factory with follow up observations detecting narrow Balmer emission lines from the host galaxy at z=0.051, and a broad HeII 4686A line superposed on a blue continuum emission. A spatial coincidence with the center of the galaxy and the above signatures led to its classification as a potential tidal disruption event.

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