What question did this study set out to answer?

This research aims to uncover a second parity-odd contribution to birefringence and analyze cluster structures in gravitational wave events.

June 8, 2026Open Access

Paper CCXLV: Throat-Threaded Magnetic Birefringence: A Second Parity-Odd Channel and the Residual Cluster Structure of 3-OGC (Companion to CCXXXII)

Key Points

This research aims to uncover a second parity-odd contribution to birefringence and analyze cluster structures in gravitational wave events.
Post-publication audit of residuals from the 3-OGC sample
Derivation of a second parity-odd contribution based on magnetic flux
Prediction based on a combined two-channel model for gravitational and magnetic contributions
Identified four stellar-mass equal-q BBHs at negative residuals, with M_tot between 14.9 to 20.1 M⊙
BNS and hierarchical mergers were found in the positive residual tail, indicating their clustering behavior
Forward prediction of residual correlation ρ(residual, χ_p·M²) ≥ +0.30 at >2.5σ on the O5 extension

Abstract

Paper CCXXXII established that the median parity-odd birefringence amplitude in the 55-event 3-OGC sample (Wang, Brown, Shao & Zhao 2022) follows |a_μ| ∝ Mₜot^ (1/2) ·dL at α (M) = 0. 63 ± 0. 20 and β (d) = 0. 92 ± 0. 22, R² = 0. 79, consistent with the P50 bulk-relaxation prediction at 2. 5σ on the O5 extension. The MIT 2026 dark-matter-imprint flag on GW190728 is shown to lie in the stellar-mass equal-q band where the throat-magnetic channel is predicted to be near zero, indicating that channel is orthogonal to the present analysis. One new parameter κAdS is introduced, fixed only to within an order of magnitude by present data. Clinical link: directional bias in magnetized hyperbolic propagation parallels DTI tractography in white-matter fibre bundles. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10. 5281/zenodo. 19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M. D. , University of Minnesota. ORCID: 0000-0002-1143-941X.

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