July 2012
Katsuda's paper on the Cygnus Loop has been accpected for publication in The Astrophysical Journal Letters.
2012/07/17
Dr. Katsuda and a team of scientist have discovered a pulsar wind nebula candidate in the Cygnus Loop supernova remnant, based on X-ray observations with Suzaku and XMM-Newton. While the origin of the Cygnus Loop has been believed to be a core-collapse of a massive star, no neutron star associated with the remnant has been […]
Katsuda's paper on Puppis A has been accpected for publication in The Astrophysical Journal.
2012/07/17
Dr. Katsuda and a team of scientists have revealed high-resolution X-ray spectra of the Galactic supernova remnant Puppis A, using the XMM-Newton Reflection Grating Spectrometer. The X-ray spectra are found to show peculiar features that cannot be reproduced by thermal emission model. It is suggested that such anomalous spectral features are due to charge-exchange emission. […]