AUTHOR=Madsen Kristin K. , García Javier A. , Stern Daniel , Amini Rashied , Basso Stefano , Coutinho Diogo , Grefenstette Brian W. , Kenyon Steven , Moretti Alberto , Morrissey Patrick , Nandra Kirpal , Pareschi Giovanni , Predehl Peter , Rau Arne , Spiga Daniele , Wilms Jörn , Zhang William W. 

TITLE=The high energy X-ray probe (HEX-P): instrument and mission profile

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=Volume 11 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2024.1357834

DOI=10.3389/fspas.2024.1357834

ISSN=2296-987X

ABSTRACT=The High Energy X-ray Probe (HEX-P) is a proposed NASA probe-class mission that combines the power of high angular resolution with a broad X-ray bandpass to provide the necessary leap in capabilities to address the important astrophysical questions of the next decade. HEX-P achieves breakthrough performance by combining technologies developed by experienced international partners. To meet the science goals, the payload consists of a suite of co-aligned X-ray telescopes designed to cover the 0.2 -80 keV bandpass. The High Energy Telescope (HET) has an effective bandpass of 2 -80 keV, and the Low Energy Telescope (LET) has an effective bandpass of 0.2 -20 keV. HEX-P will be launched into L1 to enable high observing efficiency, and the combination of bandpass and high observing efficiency delivers a powerful platform for broad science to serve a wide community. The baseline mission is five years, with 30% of the observing time dedicated to the PI-led program and 70% to a General Observer (GO) program. The GO program will be executed along with the PI-led program.