175 citations · 1k across the 21 of their papers we have counts for
21 papers
Gravitational Lensing By a Massive Object in a Dark Matter Halo. II. Shear, Phase, and Image Geometry
Michal Karamazov, David Heyrovsky
We study the gravitational lensing influence of a massive object in a dark matter halo, using a simple model of a point mass embedded in a spherical Navarro--Frenk--White halo. Bui…
Gravitational Lensing By a Massive Object in a Dark Matter Halo. I. Critical Curves and Caustics
Michal Karamazov, Lukas Timko, David Heyrovsky
We study the gravitational lensing properties of a massive object in a dark matter halo, concentrating on the critical curves and caustics of the combined lens. We model the system…
Triple-lens Gravitational Microlensing: Critical Curves for Arbitrary Spatial Configuration
Kamil Danek, David Heyrovsky
Since the first observation of triple-lens gravitational microlensing in 2006, analyses of six more events have been published by the end of 2018. In three events the lens was a st…
X-Ray Line Profile Variations during Quasar Microlensing
Lukas Ledvina, David Heyrovsky, Michal Dovciak
Observations of several gravitationally microlensed quasars in X-rays revealed variations in the profile of the iron K line in the course of microlensing events. We explore the…
The EChO science case
Giovanna Tinetti, Pierre Drossart, Paul Eccleston +347
The discovery of almost 2000 exoplanets has revealed an unexpectedly diverse planet population. Observations to date have shown that our Solar System is certainly not representativ…
Critical Curves and Caustics of Triple-lens Models
Kamil Danek, David Heyrovsky
Among the 25 planetary systems detected up to now by gravitational microlensing, there are two cases of a star with two planets, and two cases of a binary star with a planet. Other…