What event initiates the process where a star is shredded by a black hole's gravity?

Answer

Tidal Disruption Event (TDE).

The process begins when a star wanders too close to a supermassive black hole, triggering a Tidal Disruption Event due to extreme tidal forces.

What event initiates the process where a star is shredded by a black hole's gravity?

#Videos

Watch a Black hole 'burping out' a 'spaghettified' star it ... - YouTube

starblack holeejectionflare