Thakurta metric does not describe a cosmological black hole

Recently, the Thakurta metric has been adopted as a model of primordial black holes. We show that the spacetime described by this metric has neither black-hole event horizon nor black-hole trapping horizon and involves the violation of all the standard energy conditions as a solution of the Einstein...

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Bibliographic Details
Main Authors: Tomohiro Harada, Hideki Maeda, Takuma Sato
Format: Article
Language:English
Published: Elsevier 2022-10-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S037026932200466X