Combining spectroscopic and photometric surveys: Same or different sky? | Zendy

Martin Eriksen | Zendy; E. Gaztañaga | Zendy

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Combining spectroscopic and photometric surveys: Same or different sky?

Author(s) -

Martin Eriksen,

E. Gaztañaga

Publication year - 2015

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/stv1093

Subject(s) - physics , weak gravitational lensing , dark energy , photometric redshift , cosmology , redshift , galaxy , sample variance , astrophysics , baryon acoustic oscillations , sky , observable , covariance , redshift space distortions , spectral density , baryon , variance (accounting) , redshift survey , statistics , mathematics , accounting , quantum mechanics , business

This paper looks at the combined constraints from a photometric and spectroscopic survey. These surveys will measure cosmology using weak lensing (WL), galaxy clustering, baryon acoustic oscillations (BAO) and redshift space distortions (RSD). We find, contrary to some findings in the recent literature, that overlapping surveys can give important benefits when measuring dark energy. We therefore t...

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