Stellar Gas Shock Eigen Fit

Date: 2026-05-09

Decision: ADMIT_NONZERO_PHYSICAL_SHOCK_SUPPORT

Claim boundary: observation-proxy fit only. This does not claim astrophysical validation, stellar shock breakout detection, or causality.

What Changed

The physical shock eigen axis now has a nonzero observation-backed proxy from SDSS DR17 MaNGA DAPall gas and velocity columns.

prior strength:      0.000000
proxy mean:          0.461376
nonzero fraction:    0.992236
refined strength:    0.647177
support delta:       0.647177

Observable Proxies

Observable	Count	Mean	Median	P90
`gas_velocity_span_kms`	42811	397.187875	311.291389	822.890198
`stellar_velocity_span_kms`	42602	193.236817	173.686531	349.935837
`velocity_contrast`	42477	3.331742	1.379355	7.966636
`gas_sigma_1re_kms`	42296	154.21832	77.279633	413.750671
`stellar_sigma_1re_kms`	41752	118.104428	93.785969	232.383652
`emline_rchi2_1re`	42689	1.206166	1.012547	1.433319
`snr_med_mean`	43019	12.062023	9.551437	22.979785
`shock_proxy_score`	43019	0.461376	0.373522	0.861038

Gate

if admitted_proxy_rows == 0:
  HOLD_NO_OBSERVATION_SUPPORT
elif refined_strength > 0:
  ADMIT_NONZERO_PHYSICAL_SHOCK_SUPPORT
else:
  HOLD_RESIDUAL_CONTEXT

Next Work

Add emission-line index metadata so the 35-element MaNGA arrays become named H-alpha, H-beta, OIII, NII, and SII lanes.
Replace the current proxy with line-ratio diagnostics and uncertainties.
Compare high-score rows against Rankine-Hugoniot / Sedov-Taylor receipt gates only after source-specific physical context is present.

1.7 KiB Raw Blame History

Stellar Gas Shock Eigen Fit

What Changed

Observable Proxies

Gate

Next Work

1.7 KiB

Raw Blame History