7 citations · 25 across the 12 of their papers we have counts for
8 papers · 1 filter
Masking Black Hole Spin with a Modified Chaplygin Gas Envelope: Radiative Degeneracies from a Phenomenological Three-Region Spacetime
Sandip Dutta
Theoretical interpretations of horizon-scale observations often rely on the idealized assumption of an isolated vacuum Kerr geometry. However, astrophysical black holes are expecte…
Filling the Shadow: A Propositional Model of Gravastar Accretion in Gravity
Sandip Dutta
While General Relativity remains our most rigorously tested framework for gravitation, the theoretical persistence of singularities within standard black hole solutions continues t…
Viscous Accretion Disks around Regular Black Holes Embedded in a Quintessence Dark Energy Field: Beyond the Novikov--Thorne Approximation
Sandip Dutta
We develop a comprehensive relativistic framework for geometrically thin, optically thick Shakura--Sunyaev -viscous accretion disks around rotating Hayward regular black holes e…
Breaking the Degeneracy: Spectral Hardening of Accretion Disks around Rotating Hayward Black Holes in Dark Matter Halos
Sandip Dutta
We investigate the thermodynamic and observable signatures of thin accretion disks surrounding rotating, regular Hayward black holes embedded within a macroscopic dark matter (DM)…
Threshold Drop in Accretion Density if Dark Energy is Accreting onto a Supermassive Black Hole
Ritabrata Biswas, Sandip Dutta
Galactic structures are supposed to be formed out of dark matter clustering. Some examples of supermassive black holes in the central regions of high redshift galaxies say that the…
Volumetric Maxima to be Attained by a Nonstatic Black Hole
Sandip Dutta, Ritabrata Biswas, Prasanta Choudhury
Christodoulou and Rovelli have calculated maximal interior volume of a Schwarzschild black hole which linearly grows with time. Recently, the entropy of interior volume in a Schwar…