THE LAST DANCE
Adrija VS
Two neutron stars revolve around each other and due to the gravity they finally collide with each other resulting in a kilonova followed by a black hole formation

What it does
The simulation represents a physically inspired binary neutron-star merger. The two neutron stars orbit their common center of mass due to mutual gravitational attraction, modeled using:
F = G(M1×M2) / r²
For approximately circular orbital motion, the angular velocity is:
ω = √[G(M1+M2) / r³]
As the binary loses orbital energy through gravitational-wave emission, the separation \(r\) decreases, causing the orbital velocity and frequency to increase, producing the characteristic gravitational-wave “chirp.” The orbital velocity is represented by:
v = ωr
Following the merger, neutron-rich matter is ejected outward at high velocity, producing a kilonova through radioactive heating and r-process nucleosynthesis. The ejecta expansion is approximated by:
R(t) = R0 + vej×t
The simulation then visualizes the expanding ejecta/nebula and the formation of a compact black-hole remnant with an accretion disk. The orbital dynamics are simplified using classical mechanics, while gravitational waves, the kilonova, ejecta and black-hole formation are computationally visualized rather than calculated using full General Relativity