The results could help scientists better understand the physics of extreme cosmic objects, including neutron stars and black holes.
Measuring polarization tells scientists about the electric and magnetic fields that comprise wavelengths of light and which oscillate at right angles to the direction the wave is traveling in.
"We found that the angle of polarization swings by exactly 90 degrees, following what theoretical models would predict if the star had a solid crust surrounded by an external magnetosphere filled with electric currents," Roberto Taverna, an astronomer at the University of Padova in Italy and lead author of a study announcing the new IXPE results, said in aTaverna and his colleagues found to their surprise that polarization can depend on the energy of the individual particles of light,...
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