725 citations · 1.9k across the 33 of their papers we have counts for
33 papers
Self-force on a static scalar charge in traversable wormholes
Jerome P. Mecca, Ian Vega
The self-force acting on a charged particle is sensitive to the global structure of curved spacetime and can serve as a probe of geometry beyond local curvature. We compute the sta…
Waveform degeneracy of binary systems and Lagrange three-body systems
Carlos Jaimel Doctolero, Ian Vega
A particular solution to the three-body problem is the circular Lagrange three-body system, where the masses move in circular orbits such that they always constitute an equilateral…
Analytic force-free jet from disk-fed rotating black holes
Luis Villarin, Ian Vega
We present a new analytic model of a force-free electromagnetic jet launched from a disk-fed rotating black hole. The jet solution is force-free to first order in the black hole sp…
Extreme-mass ratio inspirals in Schwarzschild - de Sitter spacetime I: Weak-field orbits
John Adrian N. Villanueva, Ian Vega
The inspiral of a compact object into a black hole is a key source of low - frequency gravitational waves for future space-based detectors like LISA. While models of this process h…
Imprints of a galactic environment on TDEs: Suppressed peaks, shallower decays and late-time rebrightening episodes
Cedric Oña, Sean Fortuna, Ian Vega
Classic models of tidal disruption events (TDEs), employing a purely Keplerian description of stellar debris dynamics, have proven remarkably successful in describing the observed…
Interacting systems with zero thermodynamic curvature
Juan Rodrigo, Ian Vega
We review a conjecture by Ruppeiner that relates the nature of interparticle interactions to the sign of the thermodynamic curvature scalar , paying special attention to the cas…
Electromagnetic quasinormal modes of Schwarzschild-anti-de Sitter black holes: Bifurcations, spectral similarity, and exact solutions in the large black hole limit
Sean Fortuna, Ian Vega
We revisit the peculiar electromagnetic quasinormal mode spectrum of an asymptotically anti-de Sitter Schwarzschild black hole. Recent numerical calculations have shown that some q…
Phase boundaries and the Widom line from the Ruppeiner geometry of fluids
Karlo de Leon, Ian Vega
In the study of fluid phases, the Ruppeiner geometry provides novel ways for constructing the phase boundaries (known as the -crossing method) and the Widom line, which is consi…
Testing time-delayed cosmology
C. J. Palpal-latoc, Reginald Christian Bernardo, Ian Vega
Motivated by the proposed time-delayed cosmology in the primordial inflationary era, we consider the application of the delayed Friedmann equation in the late-time Universe and exp…
Chaotic exits from a weakly magnetized Schwarzschild black hole
Joshua Bautista, Ian Vega
A charged particle kicked from an initial circular orbit around a weakly magnetized Schwarzschild black hole undergoes transient chaotic motion before either getting captured by th…
Stealth black hole perturbations in kinetic gravity braiding
Reginald Christian Bernardo, Ian Vega
We study stealth black hole perturbations in shift symmetric kinetic gravity braiding and obtain its analogous Regge-Wheeler and Zerilli master equations for the odd and even parit…
Bernstein spectral method for quasinormal modes and other eigenvalue problems
Sean Fortuna, Ian Vega
Spectral methods are now common in the solution of ordinary differential eigenvalue problems in a wide variety of fields, such as in the computation of black hole quasinormal modes…
Stealth black holes in shift symmetric kinetic gravity braiding
Reginald Christian Bernardo, John Celestial, Ian Vega
We derive all hairy stealth black holes in the most general second-order, shift symmetric, scalar-tensor theory with luminally propagating gravitational waves, often called kinetic…
Hair-dressing Horndeski: an approach to hairy solutions in cubic Horndeski gravity
Reginald Christian Bernardo, Ian Vega
In obtaining exact solutions in gravitational theories containing arbitrary model functions, such as Horndeski gravity, one usually starts by prescribing the model functions of the…
Weak gravitational lensing by two-power-law densities using the Gauss-Bonnet theorem
Karlo de Leon, Ian Vega
We study the weak-field deflection of light by mass distributions described by two-power-law densities , where and are non-negative integers. Ne…
Tailoring cosmologies in cubic shift-symmetric Horndeski gravity
Reginald Christian Bernardo, Ian Vega
We present a method for furnishing flat Friedman-Robertson-Walker spacetimes with nearly arbitrary dynamics in an important subclass of cubic Horndeski theory -- specifically shift…
Self-force on a scalar charge in a circular orbit about a Reissner-Nordström black hole
Jezreel Castillo, Ian Vega, Barry Wardell
Motivated by applications to the study of self-force effects in scalar-tensor theories of gravity, we calculate the self-force exerted on a scalar charge in a circular orbit about…
Overcharging higher-dimensional black holes with point particles
Karl Simon Revelar, Ian Vega
We investigate the possibility of overcharging spherically-symmetric black holes in spacetime dimensions by the capture of a charged particle. We generalize Wald's classic…
Slowly rotating black holes in Einstein-æther theory
Enrico Barausse, Thomas P. Sotiriou, Ian Vega
We study slowly rotating, asymptotically flat black holes in Einstein-aether theory and show that solutions that are free from naked finite area singularities form a two-parameter…
Rotating black holes in three-dimensional Hořava gravity
Thomas P. Sotiriou, Ian Vega, Daniele Vernieri
We study black holes in the infrared sector of three-dimensional Hořava gravity. It is shown that black hole solutions with anti-de Sitter asymptotics are admissible only in the se…
Electromagnetic self-force on a static charge in Schwarzschild-de Sitter spacetimes
Joseph Kuchar, Eric Poisson, Ian Vega
We compute the self-force acting on an electric charge at rest in Schwarzschild-de Sitter spacetimes, allowing the cosmological constant to be either positive or negative. In the c…
Scalar self-force for eccentric orbits around a Schwarzschild black hole
Ian Vega, Barry Wardell, Peter Diener +2
We revisit the problem of computing the self-force on a scalar charge moving along an eccentric geodesic orbit around a Schwarzschild black hole. This work extends previous scalar…
Self-force as a cosmic censor
Peter Zimmerman, Ian Vega, Eric Poisson +1
We examine Hubeny's scenario according to which a near-extremal Reissner-Nordström black hole can absorb a particle and be driven toward an over-extremal state in which the charge…
Regularization of static self-forces
Marc Casals, Eric Poisson, Ian Vega
Various regularization methods have been used to compute the self-force acting on a static particle in a static, curved spacetime. Many of these are based on Hadamard's two-point f…