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2.1c multi-strategy
Pareto audit

For the same ObsID × MOS, compare the time retained under different GTI strategies with two independent, response-folded, line-constrained continuum spectra.

Loading Pareto receipt…
x-axis
fT

Tstrategy/T2.filter; this is a deterministic quantity once GTI is frozen, so no horizontal error bars are invented.

primary y-axis
RC,1–2

1−Cstrategy/C2.filter. Above zero means the 1–2 keV continuum actually decreased.

new hard-band result
QH,3.2–5

Cstrategy/C2.filter. Below one means the 3.2–5 keV continuum actually decreased.

What are the two C values

Not BPL norm, not raw PHA rate. Each value is the integral of all non-instrument-line components of the live XSherpa model under the same aperture, mask, XARTATOMS S/N+resolution grouping and respective ARF/RMF: LHB + absorbed halo + absorbed CXB + flat-response broken-SP. The Al/Si instrument lines are not counted in C.

The main figure is fixed at 1.0–2.0 keV, the smooth continuum under the Al/Si instrument lines; the lower figure is the independent 3.2–5.0 keV ratio. Vertical error bars come from the full Sherpa local covariance matrix propagated by live-model numerical differentiation, preserving the A/B0 correlations from shared sky parameters.

Two-band Pareto plot

Colour indicates ObsID × MOS, markers indicate GTI strategy; same-colour thin lines connect to the common 2.filter reference point. Solid points are the formal Pareto points with all gates passed; open points are screening pilots only, explicitly retaining failed/incomplete gates and cannot be used to claim SP has been identified or a strategy has won.

0800730101 MOS2: 9 real GTI multi-strategy screening under the same 2.filter reference →

Two-band 2.1c Pareto: retained time against 1-2 keV reduction and 3.2-5 keV ratio
Top: 1–2 keV reduction rate (R_C), higher is better; bottom: 3.2–5 keV ratio (Q_H), lower is better. Each vertical error bar is 1σ.

Actual spectral evidence for this MOS1

The same coordinate system overlays the A/B0 data, total model, all model components and Gehrels residuals; the BPL here is the flat-response detector-space term. It is the diagnostic figure for reading residuals, not a proxy back-derived from the line plot.

0108060601 MOS1 A and B0 joint XSherpa fit with all components and residuals
Data points carry 1σ errors; solid/dashed lines distinguish A/B0; the vertical dashed line is the 3.2 keV broken-SP break.

Public coordinates and gate status

The table publishes only judgement-ready metrics; no event, GTI, PHA or response paths are released.

case / strategylevelfTRC,1–2 ± 1σQH,3.2–5 ± 1σC1–2 (std → strategy)gate

Evidence boundary

Fixing the sky hypothesis makes the same pointing's sky cancel more cleanly across strategies, but does not by itself prove that the C difference is SP. Only after released-sky consistency, line-tie, response and residuals all pass do solid points enter the formal Pareto judgement. Stable, non-time-varying SP will not be removed by any GTI principle and still has to be handled in the spectral model.