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Tidal disruption effects near black holes and Lambda-gravity

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Abstract

The tidal disruption of stars in the vicinity of massive black holes is discussed in the context of \(\varLambda \)-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 that 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 versus the distance from the black hole, the denser stars surviving at shorter distances. The interplay of the central gravity field and the repulsive \(\varLambda \)-term increase with radius, and its certain observational consequences are discussed.

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Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.

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Authors and Affiliations

  1. Center for Cosmology and Astrophysics, Alikhanian National Laboratory and Yerevan State University, Yerevan, Armenia

    A. Stepanian, Sh. Khlghatyan & V. G. Gurzadyan

  2. SIA, Sapienza Universita di Roma, Rome, Italy

    V. G. Gurzadyan

Authors
  1. A. Stepanian
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  2. Sh. Khlghatyan
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  3. V. G. Gurzadyan
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Corresponding author

Correspondence to V. G. Gurzadyan.

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Stepanian, A., Khlghatyan, S. & Gurzadyan, V.G. Tidal disruption effects near black holes and Lambda-gravity. Eur. Phys. J. Plus 137, 965 (2022). https://doi.org/10.1140/epjp/s13360-022-03143-2

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  • DOI: https://doi.org/10.1140/epjp/s13360-022-03143-2

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