Evaluation of several explanations of the strong X-ray polarization of the black hole X-ray binary 4U 1630-47

Henric Krawczynski, Yajie Yuan, Alexander Y. Chen +6

The Imaging X-ray Polarimetry Explorer (IXPE) observations of the X-ray binary 4U 1630-47 in the high soft state revealed high linear polarization degrees (PDs) rising from 6% at 2…