Articles with "magnification bias" as a keyword



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Cosmological constraints on the magnification bias on sub-millimetre galaxies after large-scale bias corrections

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Published in 2021 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/202039043

Abstract: Context. The study of the magnification bias produced on high-redshift sub-millimetre galaxies by foreground galaxies through the analysis of the cross-correlation function was recently demonstrated as an interesting independent alternative to the weak-lensing shear as… read more here.

Keywords: large scale; magnification bias; bias; cosmological constraints ... See more keywords
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A direct and robust method to observationally constrain the halo mass function via the submillimeter magnification bias: Proof of concept

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Published in 2020 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/202039326

Abstract: Aims. The main purpose of this work is to provide a proof-of-concept method to derive tabulated observational constraints on the halo mass function (HMF) by studying the magnification bias effect on high-redshift submillimeter galaxies. Under… read more here.

Keywords: halo mass; mass function; proof concept; hmf ... See more keywords
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Calibrating magnification bias for the $E_G$ statistic to test general relativity

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty2353

Abstract: We assess the effect of magnification bias on the $E_G$ statistic for probing gravity. $E_G$, a statistic constructed from power spectrum estimates of both weak lensing and redshift space distortions (RSD), directly tests general relativity… read more here.

Keywords: magnification bias; magnification; bias statistic; general relativity ... See more keywords

Post-Limber weak lensing bispectrum, reduced shear correction, and magnification bias correction

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.101.103531

Abstract: The significant increase in precision that will be achieved by Stage IV cosmic shear surveys means that several currently used theoretical approximations may cease to be valid. An additional layer of complexity arises from the… read more here.

Keywords: bispectrum; magnification bias; reduced shear; post limber ... See more keywords