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Combining Spectroscopic and Photometric Surveys: Same or different sky? · Around

2014

Combining Spectroscopic and Photometric Surveys: Same or different sky?

Eriksen, Martin, Gaztanaga, Enrique

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This article 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 try to clarify the status of this issue with a full forecast of two stage-IV surveys using a new approach to properly account for covariance between the different probes in the overlapping samples.

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McDonald P., Seljak U., 2009, J. Cosmology Astropart. Phys, 10, 7
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Matthews D. J., Newman J. A., 2010, ApJ, 721, 456
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Bernstein G. M., Cai Y.-C., 2011, MNRAS, 416, 3009
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Asorey J., Crocce M., Gaztañaga E., Lewis A., 2012, MNRAS, 427, 1891
2012
Earlier work this paper cites.

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Then

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Later among the works it cites.
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2014
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