The STROBE-X Wide Field Monitor Instrument

Kavli Affiliate: Ronald A. Remillard

| First 5 Authors: Ronald A. Remillard, Margarita Hernanz, Jean in ‘t Zand, Paul S. Ray, Valter Bonvicini

| Summary:

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.

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