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Title: Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS

Abstract

We present clustering redshift measurements for Dark Energy Survey (DES) lens sample galaxies used in weak gravitational lensing and galaxy clustering studies. To perform these measurements, we cross-correlate with spectroscopic galaxies from the Baryon Acoustic Oscillation Survey (BOSS) and its extension, eBOSS. We validate our methodology in simulations, including a new technique to calibrate systematic errors that result from the galaxy clustering bias, and we find that our method is generally unbiased in calibrating the mean redshift. We apply our method to the data, and estimate the redshift distribution for 11 different photometrically selected bins. We find general agreement between clustering redshift and photometric redshift estimates, with differences on the inferred mean redshift found to be below |Δz| = 0.01 in most of the bins. We also test a method to calibrate a width parameter for redshift distributions, which we found necessary to use for some of our samples. Our typical uncertainties on the mean redshift ranged from 0.003 to 0.008, while our uncertainties on the width ranged from 4 to 9 per cent. Finally, we discuss how these results calibrate the photometric redshift distributions used in companion papers for DES Year 3 results.

Authors:
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Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
DES Collaboration
OSTI Identifier:
1975458
Alternate Identifier(s):
OSTI ID: 1923769; OSTI ID: 1975816
Grant/Contract Number:  
SC0020278; SC0017647; AC02-05CH11231; SC0019193; AC02-07CH11359
Resource Type:
Published Article
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 513 Journal Issue: 4; Journal ID: ISSN 0035-8711
Publisher:
Oxford University Press
Country of Publication:
United Kingdom
Language:
English
Subject:
surveys; galaxies; distances and redshifts; large-scale structure of universe; cosmology; 79 ASTRONOMY AND ASTROPHYSICS; galaxies: distances and redshifts; cosmology: observations

Citation Formats

Cawthon, R., Elvin-Poole, J., Porredon, A., Crocce, M., Giannini, G., Gatti, M., Ross, A. J., Rykoff, E. S., Carnero Rosell, A., DeRose, J., Lee, S., Rodriguez-Monroy, M., Amon, A., Bechtol, K., De Vicente, J., Gruen, D., Morgan, R., Sanchez, E., Sanchez, J., Sevilla-Noarbe, I., Abbott, T. M. C., Aguena, M., Allam, S., Annis, J., Avila, S., Bacon, D., Bertin, E., Brooks, D., Burke, D. L., Carrasco Kind, M., Carretero, J., Castander, F. J., Choi, A., Costanzi, M., da Costa, L. N., Pereira, M. E. S., Dawson, K., Desai, S., Diehl, H. T., Eckert, K., Everett, S., Ferrero, I., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kim, A. G., Kneib, J-P, Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., Lin, H., Maia, M. A. G., Melchior, P., Menanteau, F., Miquel, R., Mohr, J. J., Muir, J., Myles, J., Palmese, A., Pandey, S., Paz-Chinchón, F., Percival, W. J., Plazas, A. A., Roodman, A., Rossi, G., Scarpine, V., Serrano, S., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., To, C., Troxel, M. A., Wilkinson, R. D., and DES Collaboration). Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS. United Kingdom: N. p., 2022. Web. doi:10.1093/mnras/stac1160.
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Cawthon, R., Elvin-Poole, J., Porredon, A., Crocce, M., Giannini, G., Gatti, M., Ross, A. J., Rykoff, E. S., Carnero Rosell, A., DeRose, J., Lee, S., Rodriguez-Monroy, M., Amon, A., Bechtol, K., De Vicente, J., Gruen, D., Morgan, R., Sanchez, E., Sanchez, J., Sevilla-Noarbe, I., Abbott, T. M. C., Aguena, M., Allam, S., Annis, J., Avila, S., Bacon, D., Bertin, E., Brooks, D., Burke, D. L., Carrasco Kind, M., Carretero, J., Castander, F. J., Choi, A., Costanzi, M., da Costa, L. N., Pereira, M. E. S., Dawson, K., Desai, S., Diehl, H. T., Eckert, K., Everett, S., Ferrero, I., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kim, A. G., Kneib, J-P, Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., Lin, H., Maia, M. A. G., Melchior, P., Menanteau, F., Miquel, R., Mohr, J. J., Muir, J., Myles, J., Palmese, A., Pandey, S., Paz-Chinchón, F., Percival, W. J., Plazas, A. A., Roodman, A., Rossi, G., Scarpine, V., Serrano, S., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., To, C., Troxel, M. A., Wilkinson, R. D., & DES Collaboration). Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS. United Kingdom. https://doi.org/10.1093/mnras/stac1160
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Cawthon, R., Elvin-Poole, J., Porredon, A., Crocce, M., Giannini, G., Gatti, M., Ross, A. J., Rykoff, E. S., Carnero Rosell, A., DeRose, J., Lee, S., Rodriguez-Monroy, M., Amon, A., Bechtol, K., De Vicente, J., Gruen, D., Morgan, R., Sanchez, E., Sanchez, J., Sevilla-Noarbe, I., Abbott, T. M. C., Aguena, M., Allam, S., Annis, J., Avila, S., Bacon, D., Bertin, E., Brooks, D., Burke, D. L., Carrasco Kind, M., Carretero, J., Castander, F. J., Choi, A., Costanzi, M., da Costa, L. N., Pereira, M. E. S., Dawson, K., Desai, S., Diehl, H. T., Eckert, K., Everett, S., Ferrero, I., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kim, A. G., Kneib, J-P, Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., Lin, H., Maia, M. A. G., Melchior, P., Menanteau, F., Miquel, R., Mohr, J. J., Muir, J., Myles, J., Palmese, A., Pandey, S., Paz-Chinchón, F., Percival, W. J., Plazas, A. A., Roodman, A., Rossi, G., Scarpine, V., Serrano, S., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., To, C., Troxel, M. A., Wilkinson, R. D., and DES Collaboration). Fri . "Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS". United Kingdom. https://doi.org/10.1093/mnras/stac1160.
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@article{osti_1975458,
title = {Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS},
author = {Cawthon, R. and Elvin-Poole, J. and Porredon, A. and Crocce, M. and Giannini, G. and Gatti, M. and Ross, A. J. and Rykoff, E. S. and Carnero Rosell, A. and DeRose, J. and Lee, S. and Rodriguez-Monroy, M. and Amon, A. and Bechtol, K. and De Vicente, J. and Gruen, D. and Morgan, R. and Sanchez, E. and Sanchez, J. and Sevilla-Noarbe, I. and Abbott, T. M. C. and Aguena, M. and Allam, S. and Annis, J. and Avila, S. and Bacon, D. and Bertin, E. and Brooks, D. and Burke, D. L. and Carrasco Kind, M. and Carretero, J. and Castander, F. J. and Choi, A. and Costanzi, M. and da Costa, L. N. and Pereira, M. E. S. and Dawson, K. and Desai, S. and Diehl, H. T. and Eckert, K. and Everett, S. and Ferrero, I. and Fosalba, P. and Frieman, J. and García-Bellido, J. and Gaztanaga, E. and Gruendl, R. A. and Gschwend, J. and Gutierrez, G. and Hinton, S. R. and Hollowood, D. L. and Honscheid, K. and Huterer, D. and James, D. J. and Kim, A. G. and Kneib, J-P and Kuehn, K. and Kuropatkin, N. and Lahav, O. and Lima, M. and Lin, H. and Maia, M. A. G. and Melchior, P. and Menanteau, F. and Miquel, R. and Mohr, J. J. and Muir, J. and Myles, J. and Palmese, A. and Pandey, S. and Paz-Chinchón, F. and Percival, W. J. and Plazas, A. A. and Roodman, A. and Rossi, G. and Scarpine, V. and Serrano, S. and Smith, M. and Soares-Santos, M. and Suchyta, E. and Swanson, M. E. C. and Tarle, G. and To, C. and Troxel, M. A. and Wilkinson, R. D. and DES Collaboration)},
abstractNote = {We present clustering redshift measurements for Dark Energy Survey (DES) lens sample galaxies used in weak gravitational lensing and galaxy clustering studies. To perform these measurements, we cross-correlate with spectroscopic galaxies from the Baryon Acoustic Oscillation Survey (BOSS) and its extension, eBOSS. We validate our methodology in simulations, including a new technique to calibrate systematic errors that result from the galaxy clustering bias, and we find that our method is generally unbiased in calibrating the mean redshift. We apply our method to the data, and estimate the redshift distribution for 11 different photometrically selected bins. We find general agreement between clustering redshift and photometric redshift estimates, with differences on the inferred mean redshift found to be below |Δz| = 0.01 in most of the bins. We also test a method to calibrate a width parameter for redshift distributions, which we found necessary to use for some of our samples. Our typical uncertainties on the mean redshift ranged from 0.003 to 0.008, while our uncertainties on the width ranged from 4 to 9 per cent. Finally, we discuss how these results calibrate the photometric redshift distributions used in companion papers for DES Year 3 results.},
doi = {10.1093/mnras/stac1160},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 513,
place = {United Kingdom},
year = {Fri May 27 00:00:00 EDT 2022},
month = {Fri May 27 00:00:00 EDT 2022}
}
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