Spectroscopic Needs for Imaging Dark Energy Experiments

  title={Spectroscopic Needs for Imaging Dark Energy Experiments},
  author={J. Newman and A. Abate and F. Abdalla and S. Allam and S. Allen and R. Ansari and S. Bailey and W. Barkhouse and T. Beers and M. Blanton and M. Brodwin and J. Brownstein and R. Brunner and M. Carrasco-Kind and J. Cervantes-Cota and E. Chisari and M. Colless and J. Comparat and J. Coupon and E. Cheu and C. Cunha and A. D. L. Macorra and I. Dell'antonio and B. Frye and E. Gawiser and N. Gehrels and K. Grady and A. Hagen and P. Hall and A. Hearin and H. Hildebrandt and C. Hirata and S. Ho and K. Honscheid and D. Huterer and Z. Ivezi'c and J-P. Kneib and J. Kruk and O. Lahav and R. Mandelbaum and J. Marshall and D. Matthews and B. M{\'e}nard and R. Miquel and M. Moniez and W. Moos and J. Moustakas and C. Papovich and J. Peacock and C. Park and J. Rhodes and J-S. Ricol and I. Sadeh and A. Slozar and S. Schmidt and D. Stern and T. Tyson and A. Linden and R. Wechsler and W. Wood-Vasey and A. Zentner},
  journal={Astroparticle Physics},
  • J. Newman, A. Abate, +58 authors A. Zentner
  • Published 2015
  • Physics
  • Astroparticle Physics
  • Ongoing and near-future imaging-based dark energy experiments are critically dependent upon photometric redshifts (a.k.a. photo-z's): i.e., estimates of the redshifts of objects based only on flux information obtained through broad filters. Higher-quality, lower-scatter photo-z's will result in smaller random errors on cosmological parameters; while systematic errors in photometric redshift estimates, if not constrained, may dominate all other uncertainties from these experiments. The desired… CONTINUE READING
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