Light from Reissner–Nordstrom–de Sitter black holes

نویسندگان

چکیده

We derive for the first time form of spiral null geodesics around photon sphere Reissner-Nordstrom black hole in de Sitter expanding universe. Moreover, we obtain principal parameter need deriving, according to our method [I. I. Cot\u aescu. {Eur. Phys. J. C.} (2021) 81:32], shadow and related redshift as measured by a remote observer situated asymptotic zone. thus criterion detecting charged holes without peculiar velocities when one knows mass, shadow.

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ژورنال

عنوان ژورنال: Modern Physics Letters A

سال: 2021

ISSN: ['1793-6632', '0217-7323']

DOI: https://doi.org/10.1142/s0217732321501625