Work

Lensing convergence and the neutrino mass scale in galaxy redshift surveys

Year: 2016

Type: article

Abstract: We demonstrate the importance of including the lensing contribution in galaxy clustering analyses with large galaxy redshift surveys. It is well known that radial cross-correlations between different redshift bins of galaxy surveys are dominated by lensing. But we show here that also neglecting lensing in the autocorrelations within one bin severely biases cosmological parameter estimation with redshift surveys. It leads to significant shifts for several cosmological parameters, most notably the scalar spectral index and the neutrino mass scale. Especially the latter parameter is one of the main targets of future galaxy surveys.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.94.043007

Authors: Wilmar Cardona, Ruth Durrer, Martin Kunz, Francesco Montanari

Institutions: University of Geneva, University of Helsinki, Helsinki Institute of Physics

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Université de Genève

OpenAlex ID: W2510176222

FWCI: 2.772

Cites: 30

Cited by: 52

Related to: 10