Highly Significant Detection of X-Ray Polarization from the Brightest Accreting Neutron Star Sco X-1
Highly Significant Detection of X-Ray Polarization from the Brightest Accreting Neutron Star Sco X-1
Abstract The Imaging X-ray Polarimetry Explorer measured with high significance the X-ray polarization of the brightest Z-source, Sco X-1, resulting in the nominal 2–8 keV energy band in a polarization degree of 1.0% ± 0.2% and a polarization angle of 8° ± 6° at a 90% confidence level. This observation …