ealed a familiar light signature clinching the case for a fading "high-mass X-ray binary" with a neutron star.
"Piece by piece we solved this puzzle," said Dr. Jamie Kennea, Swift science team member at Penn State. "Swift was built primarily to detect gamma-ray bursts, so it was a thrill to use the X-ray Telescope to do something quite different, to discover a neutron star."
INTEGRAL launched in 2002, and the Rossi Explorer and Swift launched in 1995 and 2004, respectively.