Weak gravitational lensing, the deflection of light by mass, is one of the best tools to
constrain the growth of cosmic structure with time and reveal the nature of dark energy. I …

We present weak lensing shear catalogues from the fourth data release of the Kilo-Degree
Survey, KiDS-1000, spanning 1006 square degrees of deep and high-resolution imaging …

We present the galaxy shear catalog that will be used for the three-year cosmological weak
gravitational lensing analyses using data from the Wide layer of the Hyper Suprime-Cam …

We present astrophot, a fast, powerful, and user-friendly python based astronomical image
photometry solver. astrophot incorporates automatic differentiation and graphics processing …

The accurate modelling of the point spread function (PSF) is of paramount importance in
astronomical observations, as it allows for the correction of distortions and blurring caused …

The tilt, rotation, or offset of each CCD with respect to the focal plane, as well as the
distortion of the focal plane itself, causes shape distortions in the observed objects, an effect …

Weak lensing studies typically require excellent seeing conditions for the purpose of
maximizing the number density of well-resolved galaxy images. It is interesting to ask to …

Inferring the point spread function (PSF) at galaxy positions is one of the crucial steps of the
shear measurement. We introduce a novel method to estimate the PSFs at the galaxy …

Accurate shear measurement is a key topic in weak lensing community. Point spread
function (PSF), which smears the observed galaxy image, plays one of the main roles in the …

Cosmic shear statistics, such as the two-point correlation function (2PCF), can be evaluated
with the PDF-SYM method instead of the traditional weighted-sum approach. It makes use of …