3 papers
astro-ph.CO2019
First detection of the GI-type of intrinsic alignments of galaxies using the self-calibration method in a photometric galaxy survey
Eske M. Pedersen, Ji Yao, Mustapha Ishak +1
Weak gravitational lensing is one of the most promising cosmological probes to constrain dark matter, dark energy, and the nature of gravity at cosmic scales. Intrinsic alignments…
astro-ph.CO2019
Separating the Intrinsic Alignment Signal and the Lensing Signal using Self-Calibration in Photo-z Surveys with KiDS450 and KV450 Data
Ji Yao, Eske M. Pedersen, Mustapha Ishak +4
To reach the full potential for the next generation of weak lensing surveys, it is necessary to mitigate the contamination of intrinsic alignments (IA) of galaxies in the observed…
astro-ph.CO2019
Modified Gravity and Dark Energy models Beyond CDM Testable by LSST
Mustapha Ishak, Tessa Baker, Philip Bull +8
One of the main science goals of the Large Synoptic Survey Telescope (LSST) is to uncover the nature of cosmic acceleration. In the base analysis, possible deviations from the Lamb…