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Title: Emulating Baryonic Effects in Weak Lensing Measurements

Abstract

Baryonic effects are one of the most serious systematics to the tomographic analysis of weak lensing statistical measurements. We are working on a novel method for correcting cosmological observations for baryonic effects - a term used to label the fact that we observe galaxies, while theoretical modeling at present is only accurate enough for the dynamics of dark matter. Although modern cosmological simulations of dark matter (the “dark matter only", or DMO simulations) consistently reach the required 1% level of precision, the effect of baryonic physics on cosmological scales is expected to be a source of a much more severe systematic error in weak lensing measurements. In this analysis we apply a general framework to consistently include systematic effects into a likelihood analysis for cosmological surveys, such as the Dark Energy Survey (DES), and future Large Synoptic Survey Telescope survey (LSST).

Authors:
 [1];  [2];  [2]
  1. Florida State U.
  2. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1462055
Report Number(s):
FERMILAB-POSTER-18-081-A
1683905
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Georgiadou, Antigoni, Gnedin, Nick, and Nord, Brian. Emulating Baryonic Effects in Weak Lensing Measurements. United States: N. p., 2018. Web.
Georgiadou, Antigoni, Gnedin, Nick, & Nord, Brian. Emulating Baryonic Effects in Weak Lensing Measurements. United States.
Georgiadou, Antigoni, Gnedin, Nick, and Nord, Brian. Mon . "Emulating Baryonic Effects in Weak Lensing Measurements". United States. https://www.osti.gov/servlets/purl/1462055.
@article{osti_1462055,
title = {Emulating Baryonic Effects in Weak Lensing Measurements},
author = {Georgiadou, Antigoni and Gnedin, Nick and Nord, Brian},
abstractNote = {Baryonic effects are one of the most serious systematics to the tomographic analysis of weak lensing statistical measurements. We are working on a novel method for correcting cosmological observations for baryonic effects - a term used to label the fact that we observe galaxies, while theoretical modeling at present is only accurate enough for the dynamics of dark matter. Although modern cosmological simulations of dark matter (the “dark matter only", or DMO simulations) consistently reach the required 1% level of precision, the effect of baryonic physics on cosmological scales is expected to be a source of a much more severe systematic error in weak lensing measurements. In this analysis we apply a general framework to consistently include systematic effects into a likelihood analysis for cosmological surveys, such as the Dark Energy Survey (DES), and future Large Synoptic Survey Telescope survey (LSST).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

Conference:
Other availability
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