Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe high energy X-ray probe (HEX-P): constraining supermassive black hole growth with population spin measurements.AuthorsPiotrowska, J. M.; Garcia, J. A.; Walton, D. J.; Beckmann, R. S.; Stern, D.; Ballantyne, D. R.; Wilkins, D. R.; Bianchi, S.; Boorman, P. G.; Buchner, J.; Chen, C.-T.; Coppi, P.; Dauser, T.; Fabian, A. C.; Kammoun, E.; Madsen, K.; Mallick, L.; Matt, G.; Matzeu, G.; Nardini, E.PublicationFrontiers in Astronomy & Space Sciences, 2024, p1ISSN2296-987XPublication typeArticleDOI10.3389/fspas.2024.1324796