The STROBE-X Wide Field Monitor Instrument
astro-ph.IM
/ Authors
Ronald A. Remillard, Margarita Hernanz, Jean in 't Zand, Paul S. Ray, Valter Bonvicini, Søren Brandt, Terri Brandt, Alex Carmona, Yuri Evangelista, Daniel Alvarez Franco
and 19 more authors
Cynthia Froning, Jose-Luis Galvez, Gianluigi De Geronimo, Martin Grim, Emrah Kalemci, Lucien Kuiper, Irfan Kuvvetli, Thomas J. Maccarone, Witold Nowosielski, Dheeraj R. R. Pasham, Alessandro Patruno, Steven C. Persyn, Peter W. A. Roming, Andrea Santangelo, Stephane Schanne, Christoph Tenzer, Colleen A. Wilson-Hodge, Gianluigi Zampa, Frans Zwart
/ Abstract
The Wide Field Monitor (WFM) is one of the three instruments on the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X) mission, which was proposed in response to the NASA 2023 call for a probe class mission. The WFM is a coded-mask camera system that would be the most scientifically capable wide-angle monitor ever flown. The field of view covers one third of the sky, to 50 percent mask coding, and the energy sensitivity is 2 to 50 keV. The WFM is designed to identify new X-ray transients and to capture spectral and timing changes in known sources with data of unprecedented quality. Science applications cover diverse classes, in including X-ray bursts that coincide with gravitational wave detections, gamma ray bursts and their transition from prompt emission to afterglow, subluminous GRBs that may signal shock breakout in supernovae, state transitions in accreting compact objects and their jets, bright flares in fast X-ray transients, accretion onset in transitional pulsars, and coronal flares from many types of active stars.