output
20032022
most citedSignificance of Black Hole Quasinormal Modes: A Closer Look

69 citations

22 papers

gr-qc2022★ 27 cited

Calculating quasinormal modes of Schwarzschild anti-de Sitter black holes using the continued fraction method

Ramin G. Daghigh, Michael D. Green, Jodin C. Morey

We investigate the scalar, gravitational, and electromagnetic quasinormal mode spectra of Schwarzschild anti-de Sitter black holes using the numerical continued fraction method. Th…

astro-ph.GA2022★ 25 cited

Spacetime metrics and ringdown waveforms for galactic black holes surrounded by a dark matter spike

Ramin G. Daghigh, Gabor Kunstatter

Theoretical models suggest the existence of a dark matter spike surrounding the supermassive black holes at the core of galaxies. The spike density is thought to obey a power law t…

cs.CY2021★ 8 cited

Human Resource Development and the Internet of Things

Robert M Yawson, Daniel Woldeab, Emmanuel Osafo

The Internet of Things (IoT) is affecting national innovation ecosystems and the approach of organizations to innovation and how they create and capture value in everyday business…

econ.GN2021★ 1 cited

Re-examining the Philosophical Underpinnings of the Melting Pot vs. Multiculturalism in the Current Immigration Debate in the United States

Daniel Woldeab, Robert Yawson, Irina Woldeab

Immigration to the United States is certainly not a new phenomenon, and it is therefore natural for immigration, culture and identity to be given due attention by the public and po…

gr-qc2021★ 7 cited

Gravitational and electromagnetic radiation from an electrically charged black hole in general nonlinear electrodynamics

Ramin G. Daghigh, Michael D. Green

We derive the equations for the odd and even parity perturbations of coupled electromagnetic and gravitational fields of a black hole with an electric charge within the context of…

gr-qc2020★ 48 cited

Scalar Perturbations and Stability of a Loop Quantum Corrected Kruskal Black Hole

Ramin G. Daghigh, Michael D. Green, Gabor Kunstatter

We investigate the massless scalar field perturbations of a new loop quantum gravity motivated regular black hole proposed by Ashtekar {\it et al.} in [Phys.Rev.Lett. 121, 241301 (…