Cosmologically-Coupled Black Holes and Dark Energy: Alleviating the Hubble Tension

Keywords: Dark energy, Hubble tension, Cosmologically-coupled black holes, DESI, Cosmic microwave background

TL;DR: This paper proposes a new model where black holes, specifically cosmologically-coupled black holes, convert matter into dark energy, thereby offering a potential solution to the Hubble tension and influencing neutrino mass constraints.

Abstract: This paper investigates the hypothesis that cosmologically-coupled black holes (CCBH) play a pivotal role in mediating matter-to-dark energy conversion, and examines the consequential impact of this process on resolving the persistent Hubble tension. Drawing upon data from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2, complemented by cosmic microwave background (CMB) datasets, we perform a rigorous analysis of a physical model. In this model, the production of dark energy is intrinsically linked to the cosmic star formation rate density, thereby establishing a direct relationship between astrophysical processes and cosmological dynamics. The findings emanating from this analysis suggest that the CCBH model demonstrates a compelling alignment with the observed cosmological expansion history. Furthermore, this framework offers a potential pathway to mitigate the existing tension with the local distance ladder measurements, a discrepancy that has been a subject of intense scrutiny in recent years. The implications of this model extend to the realm of neutrino physics, as our results indicate that the CCBH-mediated dark energy production could exert a discernible influence on the constraints derived for neutrino mass estimations. This research contributes to a deeper understanding of the interplay between black hole physics, dark energy, and the evolving structure of the cosmos.

Submission Number: 85