Photometric Redshifts for the Dark Energy Survey and VISTA and Implications for Large Scale Structure
Nov, 2007
17 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 386 (2008) 1219-1233
e-Print:
- 0711.1059 [astro-ph]
Report number:
- FERMILAB-PUB-07-697-CD
Citations per year
Abstract: (arXiv)
We conduct a detailed analysis of the photometric redshift requirements for the proposed Dark Energy Survey (DES) using two sets of mock galaxy simulations and an artificial neural network code - ANNz. In particular, we examine how optical photometry in the DES grizY bands can be complemented with near infra-red photometry from the planned VISTA Hemisphere Survey (VHS) in the JHK_s bands. We find that the rms scatter on the photometric redshift estimate over 1- COSMOLOGY
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