Towards more realistic forecasting of dark energy constraints from galaxy redshift surveys
Abstract
Galaxy redshift surveys are becoming increasingly important as a dark energy probe. We improve the forecasting of dark energy constraints from galaxy redshift surveys by using the 'dewiggled' galaxy power spectrum, P_(dw)(k), in the Fisher matrix calculations. Since P_(dw)(k) is a good fit to real galaxy clustering data over most of the scale range of interest, our approach is more realistic compared to previous work in forecasting dark energy constraints from galaxy redshift surveys. We find that our new approach gives results in excellent agreement when compared to the results from the actual data analysis of the clustering of the Sloan Digital Sky Survey Data Release 7 luminous red galaxies. We provide forecasts of the dark energy constraints from a plausible Stage IV galaxy redshift survey.
Additional Information
© 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2013 January 8. Received 2012 December 21; in original form 2012 November 7. First published online: February 8, 2013. YW was supported in part by DOE grant DE-FG02-04ER41305. CC was supported by the Spanish MICINNs Consolider-Ingenio 2010 Programme under grant MultiDark CSD2009-00064 and grant AYA2010-21231. CH was supported by DOE DOE.DESC0006624, and the David and Lucile Packard Foundation.Attached Files
Published - MNRAS-2013-Wang-2446-53.pdf
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Additional details
- Eprint ID
- 39126
- Resolver ID
- CaltechAUTHORS:20130627-111150276
- DE-FG02-04ER41305
- Department of Energy (DOE)
- CSD2009-00064
- Spanish MICINN Consolider-Ingenio 2010 Programme
- AYA2010-21231
- Spanish MICINN Consolider-Ingenio 2010 Programme
- DOE.DE-SC0006624
- Department of Energy (DOE)
- David and Lucile Packard Foundation
- Created
-
2013-06-28Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field