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19–23 Dec 2024
Swatantrata Bhavan, Banaras Hindu University, Varanasi
Asia/Kolkata timezone

Viscous Universes with Positive Cosmological Constant

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20m
Swatantrata Bhavan, Banaras Hindu University, Varanasi

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Department of Physics, I.Sc., Banaras Hindu University, 221005 Varanasi, India
Oral Astroparticle physics and cosmology

Speaker

Akriti Garg (Central University of Himachal Pradesh)

Description

In this paper, we study the inhomogeneous continuous gravitational collapse of spherical viscous matter configurations in a universe with a positive cosmological constant. Using matter fields with a wide variety of initial density and velocity profiles, we observe the evolution of spherical marginally trapped surfaces. This allows us to track the local black hole horizon during the collapse process.

Field of contribution Theory

Authors

Akriti Garg (Central University of Himachal Pradesh) Dr Ayan Chatterjee (Central University of Himachal Pradesh)

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