8 papers
Exploring Exact Einsteinian Black Hole Physics in Dark Matter Environment: Ray Tracing, Stability, Eikonal QNMs and Thermodynamics
David Senjaya
Motivated by the recent rebuttal of black hole--dark matter solutions based on velocity-matching, we reconstruct the spacetime by treating the dark matter halo density directly as…
Novel Kerr-Hernquist Black Hole: Quasibound State, Scalar Cloud, Bomb, Superradiant Scattering
David Senjaya
We present a novel rotating black hole solution surrounded by a Hernquist dark matter halo, obtained by applying the Newman--Janis algorithm to the exact Schwarzschild--Hernquist s…
A Novel Kerr-like Black Hole in a General Double Power Law Dark Matter Environment: Geometry, Spectroscopy, and Energy Extraction
Supakchai Ponglertsakul, David Senjaya
We construct a novel Kerr-like black hole solution embedded in a general double power law dark matter environment by applying the Newman--Janis algorithm to a Schwarzschild-like se…
Tuning A Rotating Black Hole Spectrum with Dark Matter Halo: Quasibound States, Scalar Cloud, Black Hole Bomb and Superradiant Scattering
David Senjaya
We investigate the spectral dynamics of a rotating black hole embedded in a Dehnen dark matter halo, where quasibound states and superradiant scattering jointly character…
Quasi-bound States of Scalar field inside the Dyonic Kerr-Sen Black Hole
David Senjaya, Tinnagrit Songkeaw, Piyabut Burikham
We found sets of exact analytic quasi-stationary states of a massive scalar field in a dyonic Kerr-Sen black hole~(DKSBH) background in the maximally extended spacetime region. A c…
Thermodynamics and Geometrical Optics of Reissner Nordstrom de Sitter Black Holes in Noncommutative Geometry
Phongsakorn Sereewat, David Senjaya, Piyabut Burikham
We investigate the thermodynamic, optical, and dynamical properties of Reissner-Nordstrom-de Sitter black holes in a noncommutative spacetime with a minimal length scale Theta. Wit…
Novel exact black hole solution in Dehnen halo thermodynamics, photon circular motion and eikonal quasinormal modes
David Senjaya, Thanaporn Chuensuksan, Supakchai Ponglertsakul
Dehnen dark matter halo has been proven to be a valuable model for describing the surface brightness distributions of elliptical galaxies, yet its implications for…
Comment to Comment to Black Hole in Dehnen Dark Matter Halo: Exact Solution, Lensing, Light Ring, and Thermodynamics
David Senjaya
The claim in \cite{Al-Badawi:2025ipr} that *"the errors in the foundational components (3) and (5) of Ref. [1] invalidate all subsequent analyses, numerical results, and physical i…