Tidal disruption effects near black holes and Lambda-gravity

TL;DR

This paper explores how tidal disruption of stars near black holes is influenced by Lambda-gravity, which may also explain the Hubble tension, and discusses observational consequences of these effects.

Contribution

It introduces the role of Lambda-gravity in tidal disruption phenomena near black holes and discusses potential observational signatures and implications.

Findings

Tidal disruption rate depends on Lambda-gravity effects.

Pulsars can penetrate close to black hole horizons due to tidal effects.

Star segregation occurs based on density and distance from black hole.

Abstract

The tidal disruption of stars in the vicinity of massive black holes is discussed in the context of $\Lambda$-gravity. The latter provides an explanation to the Hubble tension as a possible consequence of two Hubble flows, the local and global ones. The bunch of notions which play role for the considered tidal effect are obtained, along with the rate of the disrupted stars. The role of pulsars is emphasized due to their ability to penetrate up to the horizon of the massive black hole as for them the tidal radius can reach the horizon. Tidal disruption mechanism also can lead to segregation of stars by their mean density vs the distance from the black hole, the denser stars surviving at shorter distances. The interplay of the central gravity field and the repulsive $\Lambda$-term increasing with radius and its certain observational consequences are discussed.