Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 80, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-020-7913-y
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- CoordenacAo de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [001]
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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 less than or similar to 10% imposes a GUP parameter ss(0) < 10(90).
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