Rare Neutron Star Eruption Offers Clues to Mystery of Its Core

Rare Neutron Star Eruption Offers Clues to Mystery of Its Core: "A pulsar system known as Swift J1749.4-2807 -- J1749 for short -- erupted with an X-ray outburst on April 10th. During the event, RXTE observed three eclipses, detected X-ray pulses that identified the neutron star as a pulsar, and even recorded pulse variations that indicated the neutron star's orbital motion. The Rossi X-ray Timing Explorer (RXTE), launched on December 30, 1995 from NASA's Kennedy Space Center, is managed and controlled by NASA's Goddard Space Flight Center to explore the variability of X-ray sources."