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20192026
most citedHorizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A

753 citations · 1.1k across the 14 of their papers we have counts for

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Showing 2020Show all

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gr-qc2020★ 5 cited

Quasinormal modes and greybody factors of the novel four dimensional Gauss-Bonnet black holes in asymptotically de Sitter space time: Scalar, Electromagnetic and Dirac perturbations

Saraswati Devi, Rittick Roy, Sayan Chakrabarti

We find the low lying quasinormal mode frequencies of the recently proposed novel four dimensional Gauss-Bonnet de Sitter black holes for scalar, electromagnetic and Dirac field pe…

gr-qc2020★ 70 cited

A study on black hole shadows in asymptotically de Sitter spacetimes

Rittick Roy, Sayan Chakrabarti

Previous works on black hole shadows have been primarily focused on studying shadows in asymptotically flat and anti-de Sitter space times. In the present work, we find general exp…