SCT Resolution 031 of 231  ·  CMB Anomalies & Early Universe Physics  ·  ΛCDM Tension #30

CMB Dipole-Frame Motion Excess

SCT_SOLUTION031

The CMB dipole, attributed to the solar system's motion relative to the CMB rest frame at roughly 370 km/s, should produce a kinematic dipole in the number counts of distant radio sources and quasars that is both aligned with and of comparable amplitude to the CMB dipole. Observations consistently find the radio-source dipole to be 2–3 times larger in amplitude than the kinematic prediction, with some studies finding misalignment as well. ΛCDM has no mechanism to generate such an excess and treats it as either a systematic artifact or an unexplained large-scale peculiar velocity. In SCT, bulk flows of matter on scales comparable to our observable patch are expected remnants of the collision event. The two infalling pockets carried net momentum into the collision; conservation of momentum means that the thermalized debris retains a coherent bulk flow component. Our observable patch participates in this large-scale flow, which adds to the purely kinematic solar-system contribution to produce the dipole seen in the CMB.

Additionally, the gradient of Λ_eff across the KBC Supervoid — which spans roughly 300 Mpc and is centered near our location — drives a coherent outflow of matter from the void interior toward the denser surrounding shell. This outflow, quantified through the tensor mesh dissipation mechanism, contributes a velocity field aligned with the void geometry that projects onto the dipole direction. The combination of the primordial bulk flow from the collision and the locally enhanced expansion within the supervoid provides a natural, causally grounded account of the observed dipole excess and directional anomaly, without requiring any modification to the standard electromagnetic or gravitational physics used to infer the dipole from radio source counts.

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