Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues
We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 deg^2 with a median redshift of 0.59. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in partic...
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Royal Astronomical Society
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ftcaltechauth:oai:authors.library.caltech.edu:89446 2023-05-15T18:22:25+02:00 Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues Zuntz, J. Eifler, T. F. 2018-11-21 application/pdf https://authors.library.caltech.edu/89446/ https://authors.library.caltech.edu/89446/2/sty2219.pdf https://authors.library.caltech.edu/89446/1/1708.01533.pdf https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972 en eng Royal Astronomical Society https://authors.library.caltech.edu/89446/2/sty2219.pdf https://authors.library.caltech.edu/89446/1/1708.01533.pdf Zuntz, J. and Eifler, T. F. (2018) Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues. Monthly Notices of the Royal Astronomical Society, 481 (1). pp. 1149-1182. ISSN 0035-8711. doi:10.1093/mnras/sty2219. https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972 <https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972> other Article PeerReviewed 2018 ftcaltechauth https://doi.org/10.1093/mnras/sty2219 2021-11-18T18:47:36Z We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 deg^2 with a median redshift of 0.59. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in particular our shape measurement using two independent shear measurement pipelines, METACALIBRATION and IM3SHAPE. The METACALIBRATION catalogue uses a Gaussian model with an innovative internal calibration scheme, and was applied to riz bands, yielding 34.8M objects. The IM3SHAPE catalogue uses a maximum-likelihood bulge/disc model calibrated using simulations, and was applied to r-band data, yielding 21.9M objects. Both catalogues pass a suite of null tests that demonstrate their fitness for use in weak lensing science. We estimate the 1σ uncertainties in multiplicative shear calibration to be 0.013 and 0.025 for the METACALIBRATION and IM3SHAPE catalogues, respectively. Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) South Pole Stripe ENVELOPE(9.914,9.914,63.019,63.019) Monthly Notices of the Royal Astronomical Society 481 1 1149 1182 |
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Caltech Authors (California Institute of Technology) |
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ftcaltechauth |
language |
English |
description |
We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 deg^2 with a median redshift of 0.59. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in particular our shape measurement using two independent shear measurement pipelines, METACALIBRATION and IM3SHAPE. The METACALIBRATION catalogue uses a Gaussian model with an innovative internal calibration scheme, and was applied to riz bands, yielding 34.8M objects. The IM3SHAPE catalogue uses a maximum-likelihood bulge/disc model calibrated using simulations, and was applied to r-band data, yielding 21.9M objects. Both catalogues pass a suite of null tests that demonstrate their fitness for use in weak lensing science. We estimate the 1σ uncertainties in multiplicative shear calibration to be 0.013 and 0.025 for the METACALIBRATION and IM3SHAPE catalogues, respectively. |
format |
Article in Journal/Newspaper |
author |
Zuntz, J. Eifler, T. F. |
spellingShingle |
Zuntz, J. Eifler, T. F. Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
author_facet |
Zuntz, J. Eifler, T. F. |
author_sort |
Zuntz, J. |
title |
Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
title_short |
Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
title_full |
Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
title_fullStr |
Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
title_full_unstemmed |
Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues |
title_sort |
dark energy survey year 1 results: weak lensing shape catalogues |
publisher |
Royal Astronomical Society |
publishDate |
2018 |
url |
https://authors.library.caltech.edu/89446/ https://authors.library.caltech.edu/89446/2/sty2219.pdf https://authors.library.caltech.edu/89446/1/1708.01533.pdf https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972 |
long_lat |
ENVELOPE(9.914,9.914,63.019,63.019) |
geographic |
South Pole Stripe |
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South Pole Stripe |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://authors.library.caltech.edu/89446/2/sty2219.pdf https://authors.library.caltech.edu/89446/1/1708.01533.pdf Zuntz, J. and Eifler, T. F. (2018) Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues. Monthly Notices of the Royal Astronomical Society, 481 (1). pp. 1149-1182. ISSN 0035-8711. doi:10.1093/mnras/sty2219. https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972 <https://resolver.caltech.edu/CaltechAUTHORS:20180907-101049972> |
op_rights |
other |
op_doi |
https://doi.org/10.1093/mnras/sty2219 |
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Monthly Notices of the Royal Astronomical Society |
container_volume |
481 |
container_issue |
1 |
container_start_page |
1149 |
op_container_end_page |
1182 |
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1766201834684284928 |