Amendment 57: D.3 AGIGO: IXPE and NICER General Observer Second Opportunity in ROSES-25 | Elegant Figures

The IXPE GO Program solicits proposals for investigations in any area of astrophysics (not constrained to IXPE's prime science areas). IXPE Cycle 4 observations will commence on or about February 1, 2027, and continue for a nominal period of 12 months. Individuals may submit proposals for observations that will advance the IXPE mission science return. Observing proposals may be for "standard," "Target-of-Opportunity (ToO)", "Large Program (LP)" or "Multi-cycle" observations. Theory proposals are