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Phase-Resolved Spectroscopy of Geminga Shows Rotating Hot Spot(s)

Caraveo, P. A.; Bignami, G. F.; Mereghetti, S. +2 more

Isolated neutron stars are seen in x-rays through their nonthermal and/or surface thermal emissions. X-ray Multimirror Mission-Newton observations of the Geminga pulsar show a 43-electron volt spectrum from the whole neutron star surface, as well as a power-law component above 2 kiloelectron volts. In addition, we have detected a hot (170 electron…