BeX star study, stellar spectroscopy, exoplanet.
We use the time delays in gravitationally lensed quasars to measure cosmological distances and then use them to constrain the properties of the dark energy that is driving the accelerating expansion of our Universe.
Study of the symmetries and parameters that characterise different solutions of Einstein’s equations from concomitants of the curvature tensor. Analysis of the concept of the intrinsic state of gravitational radiation from the invariant properties of the Bel-Robinson tensor.
Only very recently we are starting to discover low-mass planets like Earth. Microlensing searches are probably the most powerful probe for finding planets like Earth in the habitable zone. We work with a large international collaboration towards this extraordinary objective.
We are conducting a new mid-infrared imaging survey to analyze the statistic on the “anomalous flux ratios” of lensed quasars to estimate the abundance of starless dark matter satellites in the lens galaxies.
We use the variability in lensed quasars produced by stellar microlensing to study the structure of quasar accretion disks, particularly their size as a function of wavelength as a probe of the temperature structure of the disk.
Analytical and numerical study of single and dual (bifurcation) positioning. Selection of the true position in the case of bifurcation, and choice of the four satellites in the constellation that lead to minimum positioning errors. Pulsar navigation within the solar system.
