Joint measurement of lensing-galaxy correlations using SPT and DES SV data
We measure the correlation of galaxy lensing and cosmic microwave background lensing with a set of galaxies expected to trace the matter density field. The measurements are performed using pre-survey Dark Energy Survey (DES) Science Verification optical imaging data and millimeter-wave data from the...
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Online Access: | http://www.osti.gov/servlets/purl/1288737 https://www.osti.gov/biblio/1288737 https://doi.org/10.1093/mnras/stw1584 |
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ftosti:oai:osti.gov:1288737 2023-07-30T04:06:53+02:00 Joint measurement of lensing-galaxy correlations using SPT and DES SV data Baxter, E. J. 2023-06-26 application/pdf http://www.osti.gov/servlets/purl/1288737 https://www.osti.gov/biblio/1288737 https://doi.org/10.1093/mnras/stw1584 unknown http://www.osti.gov/servlets/purl/1288737 https://www.osti.gov/biblio/1288737 https://doi.org/10.1093/mnras/stw1584 doi:10.1093/mnras/stw1584 79 ASTRONOMY AND ASTROPHYSICS 2023 ftosti https://doi.org/10.1093/mnras/stw1584 2023-07-11T09:10:42Z We measure the correlation of galaxy lensing and cosmic microwave background lensing with a set of galaxies expected to trace the matter density field. The measurements are performed using pre-survey Dark Energy Survey (DES) Science Verification optical imaging data and millimeter-wave data from the 2500 square degree South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. The two lensing-galaxy correlations are jointly fit to extract constraints on cosmological parameters, constraints on the redshift distribution of the lens galaxies, and constraints on the absolute shear calibration of DES galaxy lensing measurements. We show that an attractive feature of these fits is that they are fairly insensitive to the clustering bias of the galaxies used as matter tracers. The measurement presented in this work confirms that DES and SPT data are consistent with each other and with the currently favored $\Lambda$CDM cosmological model. In conclusion, it also demonstrates that joint lensing-galaxy correlation measurement considered here contains a wealth of information that can be extracted using current and future surveys. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Lambda ENVELOPE(-62.983,-62.983,-64.300,-64.300) Monthly Notices of the Royal Astronomical Society 461 4 4099 4114 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS Baxter, E. J. Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
We measure the correlation of galaxy lensing and cosmic microwave background lensing with a set of galaxies expected to trace the matter density field. The measurements are performed using pre-survey Dark Energy Survey (DES) Science Verification optical imaging data and millimeter-wave data from the 2500 square degree South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. The two lensing-galaxy correlations are jointly fit to extract constraints on cosmological parameters, constraints on the redshift distribution of the lens galaxies, and constraints on the absolute shear calibration of DES galaxy lensing measurements. We show that an attractive feature of these fits is that they are fairly insensitive to the clustering bias of the galaxies used as matter tracers. The measurement presented in this work confirms that DES and SPT data are consistent with each other and with the currently favored $\Lambda$CDM cosmological model. In conclusion, it also demonstrates that joint lensing-galaxy correlation measurement considered here contains a wealth of information that can be extracted using current and future surveys. |
author |
Baxter, E. J. |
author_facet |
Baxter, E. J. |
author_sort |
Baxter, E. J. |
title |
Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
title_short |
Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
title_full |
Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
title_fullStr |
Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
title_full_unstemmed |
Joint measurement of lensing-galaxy correlations using SPT and DES SV data |
title_sort |
joint measurement of lensing-galaxy correlations using spt and des sv data |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1288737 https://www.osti.gov/biblio/1288737 https://doi.org/10.1093/mnras/stw1584 |
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ENVELOPE(-62.983,-62.983,-64.300,-64.300) |
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South Pole Lambda |
geographic_facet |
South Pole Lambda |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1288737 https://www.osti.gov/biblio/1288737 https://doi.org/10.1093/mnras/stw1584 doi:10.1093/mnras/stw1584 |
op_doi |
https://doi.org/10.1093/mnras/stw1584 |
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Monthly Notices of the Royal Astronomical Society |
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461 |
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4 |
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4099 |
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4114 |
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1772819837960060928 |