ASTRONOMY:
A Closer Look at a Gamma-Ray Burst
Stefano Covino
A study of gamma rays produced when stars collapse or collide reveals details of the explosion mechanism, particularly the role of magnetic fields.
The author is at Osservatorio Astronomico di Brera, via Emilio Bianchi 46, Merate LC, I-23807, Italy. E-mail: stefano.covino{at}brera.inaf.it