Perturbative and numerical approach to plasma strong lensing

Abstract

{Using two different approaches, we study imaging in the strong lens regime taking into account the effects of plasmatic environments on light propagation. First, we extend the use of a perturbative approach that allows us to quickly and analytically calculate the position and shape of the images of a circular source lensed by a galaxy. Such approach will be compared with that obtained from the numerical solution of the lens equations. Secondly, we introduce a 3-dimensional spheroidal model to describe the spacetime associated with the dark matter halo around the lens galaxy and an associated optical metric to incorporate the presence of the plasma medium. The (chromatic) deformation on caustic and critical curves and associated multiplicity of images is also analyzed for particular configurations.

References in corpus (53)

• LOFAR: The LOw-Frequency ARray
• A direct empirical proof of the existence of dark matter
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• Calculating black hole shadows: Review of analytical studies
• The Structure & Dynamics of Massive Early-type Galaxies: On Homology, Isothermality and Isotropy inside one Effective Radius
• Lenstronomy: multi-purpose gravitational lens modelling software package
• Weak lensing in a plasma medium and gravitational deflection of massive particles using the Gauss-Bonnet theorem. A unified treatment
• Light propagation in a plasma on Kerr spacetime: Separation of the Hamilton-Jacobi equation and calculation of the shadow
• Frequency-dependent effects of gravitational lensing within plasma
• The Gaussian Plasma Lens in Astrophysics. Refraction
• Astrophysical Applications of Gravitational Microlensing
• Effects of plasma on gravitational lensing
• Gravitational lensing in a non-uniform plasma
• The Galactic Halo Contribution to the Dispersion Measure of Extragalactic Fast Radio Bursts
• Pulsar scintillations from corrugated reconnection sheets in the ISM
• Pulsar emission amplified and resolved by plasma lensing in an eclipsing binary
• Two families of astrophysical diverging lens models
• Higher order corrections to deflection angle of massive particles and light rays in plasma media for stationary spacetimes using the Gauss-Bonnet theorem
• Revisiting the shadow of a black hole in the presence of a plasma
• Finite distance corrections to the light deflection in a gravitational field with a plasma medium
• Real-time detection of an extreme scattering event: constraints on Galactic plasma lenses
• Refractive Convergent Plasma Lenses explain ESE and pulsar scintillation
• Gravitational lensing in dispersive media and deflection angle of charged massive particles in terms of curvature scalars and energy-momentum tensor
• First detection of frequency-dependent, time-variable dispersion measures
• Atomic and Ionized Microstructures in the Diffuse Interstellar Medium
• The KMOS${}^{3D}$ Survey: Investigating the Origin of the Elevated Electron Densities in Star-Forming Galaxies at $1\lesssim z\lesssim 3$
• Escape and Trapping of Low-Frequency Gravitationally Lensed Rays by Compact Objects within Plasma
• The galaxy-wide distributions of mean electron density in the HII regions of M51 and NGC 4449
• Predicting Pulsar Scintillation from Refractive Plasma Sheets
• Radio Line Properties of Axion Dark Matter Conversion in Neutron Stars
• VLBA observations of a rare multiple quasar imaging event caused by refraction in the interstellar medium
• Shadows of Kerr black holes with a Gaussian-distributed plasma in the polar direction
• Sub-arcsecond imaging with the International LOFAR Telescope: II. Completion of the LOFAR Long-Baseline Calibrator Survey
• LOFAR MSSS: Flattening low-frequency radio continuum spectra of nearby galaxies
• Dynamic spectral mapping of interstellar plasma lenses
• Gravitational lens optical scalars in terms of energy-momentum distributions
• Constraining small scale magnetic fields through plasma lensing: Application to the Black widow eclipsing pulsar binary
• Spatial dispersion of light rays propagating through a plasma in Kerr spacetime
• Hills and holes in the microlensing light curve due to plasma environment around gravitational lens
• The effects of plasma lensing on the inferred dispersion measures of Fast Radio Bursts
• The effects of plasma on the magnification and time delay of strongly lensed fast radio bursts
• Gravitational arcs as a perturbation of the perfect ring
• Two families of elliptical plasma lenses
• Pushing subarcsecond resolution imaging down to 30 MHz with the trans-European International LOFAR Telescope
• Analytical expressions for pulse profile of neutron stars in plasma environments
• Induced Polarization from Birefringent Pulse Splitting in Magnetoionic Media
• Gravitational lens optical scalars in terms of energy-momentum distributions in the cosmological framework
• Binary microlensing with plasma environment -- Star and planet
• The Multiple Images of the Plasma Lensing FRB
• Magnetized Filament Models for Diverging Plasma Lenses
• Spectroscopic study of the HII regions in the NGC 1232 galaxy
• Analytic approach to perturbed Einstein ring with elliptical NFW lens model
• On the accuracy of the Perturbative Approach for Strong Lensing: Local Distortion for Pseudo-Elliptical Models

Cited by in corpus (5)

• Shadows of rotating black holes in plasma environments with aberration effects
• Deflection of light rays in a moving medium around a spherically symmetric gravitating object
• Deciphering signatures of Kerr-Sen black holes in presence of plasma from the Event Horizon Telescope data
• Light deflection in axially symmetric stationary spacetimes filled with a moving medium
• Investigating the interplay of the braneworld gravity and the plasma environment on the black hole shadow