Waspie_Dwarf Posted July 22, 2014 #1 Share Posted July 22, 2014 NASA's Fermi Catches a 'Transformer' Pulsar In late June 2013, an exceptional binary containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed. The pulsar's radio beacon vanished, while at the same time the system brightened fivefold in gamma rays, the most powerful form of light, according to measurements by NASA's Fermi Gamma-ray Space Telescope."It's almost as if someone flipped a switch, morphing the system from a lower-energy state to a higher-energy one," said Benjamin Stappers, an astrophysicist at the University of Manchester, England, who led an international effort to understand this striking transformation. "The change appears to reflect an erratic interaction between the pulsar and its companion, one that allows us an opportunity to explore a rare transitional phase in the life of this binary." Read more... Link to comment Share on other sites More sharing options...
Waspie_Dwarf Posted July 22, 2014 Author #2 Share Posted July 22, 2014 NASA's Fermi Catches a 'Transformer' PulsarZoom into an artist's concept of AY Sextantis, a binary star system whose pulsar switched from radio emissions to high-energy gamma rays in 2013. This transition likely means the pulsar's spin-up process is nearing its end. Credit: NASA's Goddard Space Flight CenterSource: NASA Goddard - Multimedia Link to comment Share on other sites More sharing options...
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