Redshift sensitivities of dark energy surveys
نویسندگان
چکیده
منابع مشابه
Weighing the Universe with Photometric Redshift Surveys and the Impact on Dark Energy Forecasts
With a wariness of Occam’s razor awakened by the discovery of cosmic acceleration, we abandon the usual assumption of zero mean curvature and ask how well it can be determined by planned surveys. We also explore the impact of uncertain mean curvature on forecasts for the performance of planned dark energy probes. We find that weak lensing and photometric baryon acoustic oscillation data, in com...
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We show that the measurement of the baryonic acoustic oscillations in large high redshift galaxy surveys offers a precision route to the measurement of dark energy. The cosmic microwave background provides the scale of the oscillations as a standard ruler that can be measured in the clustering of galaxies, thereby yielding the Hubble parameter and angular diameter distance as a function of reds...
متن کاملar X iv : a st ro - p h / 06 02 21 3 v 2 8 A pr 2 00 6 The redshift sensitivities of dark energy surveys
Great uncertainty surrounds dark energy, both in terms of its physics, and the choice of methods by which the problem should be addressed. Here we quantify the redshift sensitivities offered by different techniques. We focus on the three methods most adept at constraining w, namely supernovae, cosmic shear, and baryon oscillations. For each we provide insight into the family of w(z) models whic...
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Michael Mortonson, Wayne Hu, and Dragan Huterer Kavli Institute for Cosmological Physics and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA Kavli Institute for Cosmological Physics and Department of Astronomy & Astrophysics, University of Chicago, Chicago, Illinois 60637, USA Department of Physics, University of Michigan, 450 Church St, Ann Arbor, Michigan 48109-1040...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.73.083001