G. Matt

The high energy X-ray probe (HEX-P): probing the physics of the X-ray corona in active galactic nuclei

A. Merloni, J. Tomsick, F. Civano, 2023, Frontiers in Astronomy and Space Sciences.

The high energy X-ray probe (HEX-P): constraining supermassive black hole growth with population spin measurements

T. Dauser, F. Tombesi, S. Puccetti, 2023, Frontiers in Astronomy and Space Sciences.

IXPE observation confirms a high spin in the accreting black hole 4U 1957+115

A. L. Peirson, S. Bongiorno, J. Heyl, 2022 .