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astro-ph.CO2023★ 17 cited
DESI Legacy Imaging Surveys Data Release 9: Cosmological Constraints from Galaxy Clustering and Weak Lensing using the Minimal Bias Model
Haojie Xu, Hekun Li, Jun Zhang +11
We present a tentative constraint on cosmological parameters and from a joint analysis of galaxy clustering and galaxy-galaxy lensing from DESI Legacy Imaging Surveys D…
astro-ph.CO2023★ 3 cited
Weak Lensing Reconstruction by Counting DECaLS Galaxies
Jian Qin, Pengjie Zhang, Haojie Xu +4
Alternative to weak lensing measurements through cosmic shear, we present a weak lensing convergence map reconstructed through cosmic magnification effect in DECaLS galaxie…
astro-ph.CO2023★ 8 cited
A method of weak lensing reconstruction through cosmic magnification with multi-band photometry information
Ruijie Ma, Pengjie Zhang, Yu Yu +1
Weak gravitational lensing induces flux dependent fluctuations in the observed galaxy number density distribution. This cosmic magnification (magnification bias) effect in principl…