P41 v1.2: The GWTC-4.0 "Mass Gap" as Evidence for CCEGA Ultracompact Objects

Key Points

• This research reexamines the mass classifications of gravitational wave events in relation to ultracompact objects.
• Updated maximum mass threshold to 4.26 ± 0.04 M☉ across six equations of state.
• Reclassified GWTC-4.0 O4a events based on new intermediate regime boundaries.
• Applied Mann-Whitney U test for statistical comparisons between mass groupings.
• GW190814's classification was changed, now below the new maximum mass boundary.
• GW230529 is considered marginal or borderline within the updated classification.
• Statistical significance found in differentiating intermediate objects from true black holes (p<0.0001).

Abstract