A model of ultraviolet and optical emission from the tidal disruption event AT 2018hyz is shown in this schematic diagram. As an accretion disk forms quickly after the TDE, it generates x-ray emission ...

Starting from the upper left and moving clockwise from large to small scales: upper left —"spiral-like" system; upper right — "bar-like" structure; lower right — rotating infalling envelope; lower ...

Stars form in massive clouds of gas called molecular clouds. As they form, they accrete gas from these clouds, and as the stars rotate, gas and dust accumulates in a rotating disk around the star ...

Artist’s impression of the powerful winds blowing from the bright X-ray source GX13+1. The X-rays are coming from a disc of hot matter, known as an accretion disc, that is gradually spiralling down to ...

My research group studies the accretion process onto black holes, in order to understand how they grow and to develop tests of strong field general relativity. We make detailed predictions for the ...

A stunning eruption unleashed by the sun two years ago is providing clues about how stars form, scientists say. On June 7, 2011, the sun blasted out an enormous cloud of superheated plasma called a ...