TY  -  
T1  - Euclid preparation : XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography 
SN  -  /  
UR  - http://hdl.handle.net/10138/329661 
T3  -  
A1  - Euclid Collaboration; Ilbert, O.; de la Torre, S.; Gozaliasl, G.; Keihänen, E.; Kurki-Suonio, H.; Väliviita, J.; Kirkpatrick , C. C. 
A2  -  
PB  -  
Y1  - 2021 
LA  - eng 
AB  - 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 99.8%. The zPDF approach can also be successful if the zPDF is de-biased using a spectroscopic ... 
VO  -  
IS  -  
SP  -  
OP  -  
KW  - dark energy; galaxies: distances and redshifts; methods: statistical; PHOTOMETRIC REDSHIFTS; DISTRIBUTIONS; PERFORMANCE; SIMULATION; RESOLUTION; EVOLUTION; UNIVERSE; STELLAR; IMPACT; 115 Astronomy, Space science 
N1  -   
PP  -  
ER  -