Two kinds of GRBs

[Tom Mazanec]

Supernova or neutron star collision...would they both GRB? Would they be distinguishable?

[Normandy6644]

I would imagine the energy output over time would have a different signature for each case, but I don't have any numbers to support it right now.

[Ilya]

Neutron star collision would be over much faster than a supernova.

[The Bad Astronomer]

Yes, they are both possible, and both are leading candidates for GRB progenitors. There are two types of GRBs: fast ones and slow ones, and so there may be two types of progenitors.

Go here and scroll down to the Introduction to Gamma Rays and Gamma-Ray Bursts.

[JHotz]

Yes, they are both possible, and both are leading candidates for GRB progenitors. There are two types of GRBs: fast ones and slow ones, and so there may be two types of progenitors.

Go here and scroll down to the Introduction to Gamma Rays and Gamma-Ray Bursts.

Do not forget Magnetars