33.43 turns asteroseismic residual continua into a smooth-baseline translation court: after a shared bandpass kernel, shared time reference, unified spectral convention, preregistered background-model families, frozen discrete-mode removal, and band-edge holdouts, B_smooth must remain near frequency-insensitive inside the main oscillation band, keep the same direction across observing channels, show zero-lag same-window co-occurrence across many stars, preserve stable sub-band and cross-channel ratios while the absolute baseline shifts smoothly, and beat environment-and-structure prediction cards under null tests; under V08/V09-compatible translation, B_smooth remains an asteroseismic residual/readout ledger rather than a universal baseline ontology or cosmological floor.
Use this section as a compact machine-readable EFT reference.
33.43 recasts asteroseismic continuum leftovers as one admissible court object B_smooth: the point is not to romanticize any broadband floor, but to ask whether a residual smooth baseline remains after frozen mode removal and standard background subtraction. Under compat adjudication, this chapter is translate.
The readout package is five-fold: B_smooth tier strength, near frequency-insensitivity inside the main oscillation band, same-direction behavior across channels, zero-lag co-occurrence across many stars in one time window, and reproducible cross-type profile behavior against surface gravity, effective temperature, and radius. Stable sub-band and photometry-to-radial-velocity ratios are required while the absolute baseline shifts smoothly.
The workflow freezes the bandpass kernel, time reference, spectral convention, main band and reference windows, background-model families, and mode-removal rules before unblinding. Two pipelines and at least two observing chains run independently, while band-edge holdouts, synchrony tests, prediction cards, and injection–recovery are mandatory and system logs are carried as explicit companion ledgers rather than hidden tuning knobs.
False common baselines must collapse under channel, stellar-type, and time-window permutations, time reversal, rotated or shifted environment templates, reference-window checks far from the main oscillation band, and regressions against attitude, thermal-control, scattered-light, pointing-jitter, and pixel-event metrics. If the same significance survives these destructive tests, the signal returns to model and systematics ledgers.
The pass line requires at least two stellar types, at least two independent pipelines, same-direction behavior across at least two channels or instrument configurations, zero-lag co-occurrence across many stars, convergent amplitudes under band-edge holdouts, and feed-forward hits above permutations on held-out windows. Background-model degeneracy, scattered light and thermal control, and sampling-window aliasing remain the three named ledgers that must absorb the effect first.
The chapter ends with one asteroseismic residual ledger only: if B_smooth survives as a cross-type, near-achromatic, same-window, zero-lag structure, it becomes an auditable residual court with a publishable upper limit and extends the multi-carrier common-term search chain. If not, it returns to granulation, observing-chain, and sampling ledgers without receiving any free upgrade into a universal floor or canon-core object.