Regular Article - Theoretical Physics
Upper bound on the GUP parameter using the black hole shadow
Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, São Paulo, 09210-580, Brazil
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Accepted: 8 April 2020
Published online: 28 April 2020
An upper bound on the parameter that provides a generalized uncertainty principle (GUP) is obtained from the black hole shadow. With the aid of a recent constraint between regular black holes and the GUP parameter, it is indicated a relation between this parameter and the deviation from circularity of the black hole shadow. In the case of the recent announcement of the M87* results from the Event Horizon Telescope collaboration, a deviation from circularity imposes a GUP parameter .
© The Author(s), 2020