3 papers
astro-ph.CO2026
A hybrid method for reconstruction of the equation of state of dark energy and its application to Pantheon+SH0ES data
Gawain Simpson, Krzysztof Bolejko, Stephen Walters
Cosmology aims to understand the physical properties of our Universe on its largest scales. One such feature is the expansion of the Universe, which currently seems to be dominated…
astro-ph.CO2026
Local environmental dependence on weak-lensing shear statistics
Sonia Akter Ema, Md Rasel Hossen, Krzysztof Bolejko +1
Despite the assumption that an ideal FLRW observer is not dependent on the local environment, observations are biased by the positions of the observers due to the matter correlatio…
astro-ph.CO2025
Constraining decaying dark matter models with gravitational lensing and cosmic voids
Earl Lester, Krzysztof Bolejko
Despite overwhelming observational evidence for dark matter, we still have no evidence of direct detection. Consequently, our knowledge about dark matter is limited, for example, w…