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Euclid preparation: XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography

Abstract:

The analysis of weak gravitational lensing in wide-field imaging surveys is considered to be a major cosmological probe of dark energy. Our capacity to constrain the dark energy equation of state relies on an accurate knowledge of the galaxy mean redshift ⟨z⟩. We investigate the possibility of measuring ⟨z⟩ with an accuracy better than 0.002 (1 + z) in ten tomographic bins spanning the redshift interval 0.2 

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1051/0004-6361/202040237

Authors


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Role:
Author, Contributor
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Institution:
University of Oxford
Role:
Author
Publisher:
EDP Sciences
Journal:
Astronomy and Astrophysics More from this journal
Volume:
647
Article number:
A117
Publication date:
2021-03-18
Acceptance date:
2021-01-02
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
Language:
English
Keywords:
Pubs id:
1170370
Local pid:
pubs:1170370
Deposit date:
2021-04-21

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