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1. Weak Gravitational Lensing around Low Surface Brightness Galaxies in the DES Year 3 Data

Author: N. Chicoine, J. Prat, G. Zacharegkas, C. Chang, D. Tanoglidis, A. Drlica-Wagner, D. Anbajagane, S. Adhikari, A. Amon, R. H. Wechsler, A. Alarcon, K. Bechtol, M. R. Becker, G. M. Bernstein, A. Campos, A. Carnero Rosell, M. Carrasco Kind, R. Cawthon, R. Chen, A. Choi, J. Cordero, C. Davis, J. DeRose, S. Dodelson, C. Doux, K. Eckert, J. Elvin-Poole, S. Everett, A. Ferté, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, I. Harrison, K. Herner, M. Jarvis, P. -F. Leget, N. MacCrann, J. McCullough, J. Myles, A. Navarro-Alsina, S. Pandey, M. Raveri, R. P. Rollins, A. Roodman, A. J. Ross, E. S. Rykoff, C. Sánchez, L. F. Secco, I. Sevilla-Noarbe, E. Sheldon, T. Shin, M. A. Troxel, I. Tutusaus, T. N. Varga, B. Yanny, B. Yin, J. Zuntz, M. Aguena, O. Alves, D. Bacon, D. Brooks, J. Carretero, F. J. Castander, C. Conselice, S. Desai, J. De Vicente, P. Doel, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, E. Gaztanaga, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, S. Lee, C. Lidman, M. Lima, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. Muir, R. L. C. Ogando, A. Palmese, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, A. Porredon, A. R. Walker, S. Samuroff, E. Sanchez, D. Sanchez Cid, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, D. L. Tucker, V. Vikram, N. Weaverdyck, and P. Wiseman
Subjects: Astronomy, QB1-991, Astrophysics, QB460-466
Abstract: We present galaxy-galaxy lensing measurements using a sample of low surface brightness galaxies (LSBGs) drawn from the Dark Energy Survey Year 3 (Y3) data as lenses. LSBGs are diffuse galaxies with a surface brightness dimmer than the ambient night sky. These dark-matter-dominated objects are intriguing due to potentially unusual formation channels that lead to their diffuse stellar component. Given the faintness of LSBGs, using standard observational techniques to characterize their total masses proves challenging. Weak gravitational lensing, which is less sensitive to the stellar component of galaxies, could be a promising avenue to estimate the masses of LSBGs. Our LSBG sample consists of 23,790 galaxies separated into red and blue color types at $g-i\ge 0.60$ and $g-i< 0.60$, respectively. Combined with the DES Y3 shear catalog, we measure the tangential shear around these LSBGs and find signal-to-noise ratios of 6.67 for the red sample, 2.17 for the blue sample, and 5.30 for the full sample. We use the clustering redshifts method to obtain redshift distributions for the red and blue LSBG samples. Assuming all red LSBGs are satellites, we fit a simple model to the measurements and estimate the host halo mass of these LSBGs to be $\log(M_{\rm host}/M_{\odot}) = 12.98 ^{+0.10}_{-0.11}$. We place a 95% upper bound on the subhalo mass at $\log(M_{\rm sub}/M_{\odot})
Published: 2024
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2. Galaxy Clusters Discovered via the Thermal Sunyaev-Zel’dovich Effect in the 500-square-degree SPTpol Survey

Author: L. E. Bleem, M. Klein, T. M. C. Abbot, P. A. R. Ade, M. Aguena, O. Alves, A.J. Anderson, F. Andrade-Oliveira, B. Ansarinejad, M. Archipley, M. L. N. Ashby, J. E. Austermann, D. Bacon, J. A. Beall, A. N. Bender, B. A. Benson, F. Bianchini, S. Bocquet, D. Brooks, D. L. Burke, M. Calzadilla, J. E. Carlstrom, A. Carnero Rosell, J. Carretero, C. L. Chang, P. Chaubal, H. C. Chiang, T-L. Chou, R. Citron, C. Corbett Moran, M. Costanzi, M. Constanzi, T. M. Crawford, A. T. Crites, L. N. da Costa, T. de Haan, J. De Vicente, S. Desai, M. A. Dobbs, P. Doel, W. Everett, I. Ferrero, B. Flaugher, B. Floyd, D. Friedel, J. Frieman, J. Gallicchio, J. Garc'ia-Bellido, M. Gatti, E. M. George, G. Giannini, S. Grandis, D. Gruen, R. A. Gruendl, N. Gupta, G. Gutierrez, N. W. Halverson, S. R. Hinton, G. P. Holder, D. L. Hollowood, W. L. Holzapfel, K. Honscheid, J. D. Hrubes, N. Huang, J. Hubmayr, K. D. Irwin, J. Mena-Fernández, D. J. James, F. Kéruzoré, L. Knox, K. Kuehn, O. Lahav, A. T. Lee, S. Lee, D. Li, A. Lowitz, J. L. Marshal, M. McDonald, J. J. McMahon, F. Menanteau, S. S. Meyer, R. Miquel, J. J. Mohr, J. Montgomery, J. Myles, T. Natoli, J. P. Nibarger, G. I. Noble, V. Novosad, R. L. C. Ogando, S. Padin, S. Patil, M. E. S. Pereira, A. Pieres, A. A. Plazas Malag'on, C. Pryke, C. L. Reichardt, M. Rodr'iguez-Monroy, A. K. Romer, J. E. Ruhl, B. R. Saliwanchik, L. Salvati, E. Sanchez, A. Saro, K. K. Schaffer, T. Schrabback, I. Sevilla-Noarbe, C. Sievers, G. Smecher, M. Smith, T. Somboonpanyakul, B. Stalder, A. A. Stark, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, C. Tucker, T. Veach, J. D. Vieira, M. Vincenzi, G. Wang, J. Weller, N. Whitehorn, P. Wiseman, W. L. K. Wu, V. Yefremenko, J. A. Zebrowski, and Y. Zhang
Subjects: Astronomy, QB1-991, Astrophysics, QB460-466
Published: 2024
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3. The Dark Energy Survey: Cosmology Results with ∼1500 New High-redshift Type Ia Supernovae Using the Full 5 yr Data Set

Author: DES Collaboration: T. M. C. Abbott, M. Acevedo, M. Aguena, A. Alarcon, S. Allam, O. Alves, A. Amon, F. Andrade-Oliveira, J. Annis, P. Armstrong, J. Asorey, S. Avila, D. Bacon, B. A. Bassett, K. Bechtol, P. H. Bernardinelli, G. M. Bernstein, E. Bertin, J. Blazek, S. Bocquet, D. Brooks, D. Brout, E. Buckley-Geer, D. L. Burke, H. Camacho, R. Camilleri, A. Campos, A. Carnero Rosell, D. Carollo, A. Carr, J. Carretero, F. J. Castander, R. Cawthon, C. Chang, R. Chen, A. Choi, C. Conselice, M. Costanzi, L. N. da Costa, M. Crocce, T. M. Davis, D. L. DePoy, S. Desai, H. T. Diehl, M. Dixon, S. Dodelson, P. Doel, C. Doux, A. Drlica-Wagner, J. Elvin-Poole, S. Everett, I. Ferrero, A. Ferté, B. Flaugher, R. J. Foley, P. Fosalba, D. Friedel, J. Frieman, C. Frohmaier, L. Galbany, J. García-Bellido, M. Gatti, E. Gaztanaga, G. Giannini, K. Glazebrook, O. Graur, D. Gruen, R. A. Gruendl, G. Gutierrez, W. G. Hartley, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. Huterer, B. Jain, D. J. James, N. Jeffrey, E. Kasai, L. Kelsey, S. Kent, R. Kessler, A. G. Kim, R. P. Kirshner, E. Kovacs, K. Kuehn, O. Lahav, J. Lee, S. Lee, G. F. Lewis, T. S. Li, C. Lidman, H. Lin, U. Malik, J. L. Marshall, P. Martini, J. Mena-Fernández, F. Menanteau, R. Miquel, J. J. Mohr, J. Mould, J. Muir, A. Möller, E. Neilsen, R. C. Nichol, P. Nugent, R. L. C. Ogando, A. Palmese, Y.-C. Pan, M. Paterno, W. J. Percival, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, B. Popovic, A. Porredon, J. Prat, H. Qu, M. Raveri, M. Rodríguez-Monroy, A. K. Romer, A. Roodman, B. Rose, M. Sako, E. Sanchez, D. Sanchez Cid, M. Schubnell, D. Scolnic, I. Sevilla-Noarbe, P. Shah, J. Allyn. Smith, M. Smith, M. Soares-Santos, E. Suchyta, M. Sullivan, N. Suntzeff, M. E. C. Swanson, B. O. Sánchez, G. Tarle, G. Taylor, D. Thomas, C. To, M. Toy, M. A. Troxel, B. E. Tucker, D. L. Tucker, S. A. Uddin, M. Vincenzi, A. R. Walker, N. Weaverdyck, R. H. Wechsler, J. Weller, W. Wester, P. Wiseman, M. Yamamoto, F. Yuan, B. Zhang, and Y. Zhang
Subjects: Cosmology, Type Ia supernovae, Dark energy, Dark matter, Astrophysics, QB460-466
Abstract: We present cosmological constraints from the sample of Type Ia supernovae (SNe Ia) discovered and measured during the full 5 yr of the Dark Energy Survey (DES) SN program. In contrast to most previous cosmological samples, in which SNe are classified based on their spectra, we classify the DES SNe using a machine learning algorithm applied to their light curves in four photometric bands. Spectroscopic redshifts are acquired from a dedicated follow-up survey of the host galaxies. After accounting for the likelihood of each SN being an SN Ia, we find 1635 DES SNe in the redshift range 0.10 < z < 1.13 that pass quality selection criteria sufficient to constrain cosmological parameters. This quintuples the number of high-quality z > 0.5 SNe compared to the previous leading compilation of Pantheon+ and results in the tightest cosmological constraints achieved by any SN data set to date. To derive cosmological constraints, we combine the DES SN data with a high-quality external low-redshift sample consisting of 194 SNe Ia spanning 0.025 < z < 0.10. Using SN data alone and including systematic uncertainties, we find Ω _M = 0.352 ± 0.017 in flat ΛCDM. SN data alone now require acceleration ( q _0 < 0 in ΛCDM) with over 5 σ confidence. We find $({{\rm{\Omega }}}_{{\rm{M}}},w)=({0.264}_{-0.096}^{+0.074},-{0.80}_{-0.16}^{+0.14})$ in flat w CDM. For flat w _0 w _a CDM, we find $({{\rm{\Omega }}}_{{\rm{M}}},{w}_{0},{w}_{a})=({0.495}_{-0.043}^{+0.033},-{0.36}_{-0.30}^{+0.36},-{8.8}_{-4.5}^{+3.7})$ , consistent with a constant equation of state to within ∼2 σ . Including Planck cosmic microwave background, Sloan Digital Sky Survey baryon acoustic oscillation, and DES 3 × 2pt data gives (Ω _M , w ) = (0.321 ± 0.007, −0.941 ± 0.026). In all cases, dark energy is consistent with a cosmological constant to within ∼2 σ . Systematic errors on cosmological parameters are subdominant compared to statistical errors; these results thus pave the way for future photometrically classified SN analyses.
Published: 2024
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4. DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys

Author: Dark Energy Survey, Kilo-Degree Survey Collaboration, T. M. C. Abbott, M. Aguena, A. Alarcon, O. Alves, A. Amon, F. Andrade-Oliveira, M. Asgari, S. Avila, D. Bacon, K. Bechtol, M. R. Becker, G. M. Bernstein, E. Bertin, M. Bilicki, J. Blazek, S. Bocquet, D. Brooks, P. Burger, D. L. Burke, H. Camacho, A. Campos, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, R. Cawthon, C. Chang, R. Chen, A. Choi, C. Conselice, J. Cordero, M. Crocce, L. N. da Costa, M. E. da Silva Pereira, R. Dalal, C. Davis, J. T. A. deJong, J. DeRose, S. Desai, H. T. Diehl, S. Dodelson, P. Doel, C. Doux, A. Drlica-Wagner, A. Dvornik, K. Eckert, T. F. Eifler, J. Elvin-Poole, S. Everett, X. Fang, I. Ferrero, A. Ferté, B. Flaugher, O. Friedrich, J. Frieman, J. García-Bellido, M. Gatti, G. Giannini, B. Giblin, D. Gruen, R. A. Gruendl, G. Gutierrez, I. Harrison, W. G. Hartley, K. Herner, C. Heymans, H. Hildebrandt, S. R. Hinton, H. Hoekstra, D. L. Hollowood, K. Honscheid, H. Huang, E. M. Huff, D. Huterer, D. J. James, M. Jarvis, N. Jeffrey, T. Jeltema, B. Joachimi, S. Joudaki, A. Kannawadi, E. Krause, K. Kuehn, K. Kuijken, N. Kuropatkin, O. Lahav, P. -F. Leget, P. Lemos, S. Li, X. Li, A. R. Liddle, M. Lima, C. -A Lin, H. Lin, N. MacCrann, C. Mahony, J. L. Marshall, J. McCullough, J. Mena-Fernández, F. Menanteau, R. Miquel, J. J. Mohr, J. Muir, J. Myles, N. Napolitano, A. Navarro-Alsina, R. L. C. Ogando, A. Palmese, S. Pandey, Y. Park, M. Paterno, J. A. Peacock, D. Petravick, A. Pieres, A. A. Plazas Malagón, A. Porredon, J. Prat, M. Radovich, M. Raveri, R. Reischke, N. C. Robertson, R. P. Rollins, A. K. Romer, A. Roodman, E. S. Rykoff, S. Samuroff, C. Sánchez, E. Sanchez, J. Sanchez, P. Schneider, L. F. Secco, I. Sevilla-Noarbe, H.-Y. Shan, E. Sheldon, T. Shin, C. Sifón, M. Smith, M. Soares-Santos, B. Stölzner, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, C. To, M. A. Troxel, T. Tröster, I. Tutusaus, J. L. van den Busch, T. N. Varga, A. R. Walker, N. Weaverdyck, R. H. Wechsler, J. Weller, P. Wiseman, A. H. Wright, B. Yanny, B. Yin, M. Yoon, Y. Zhang, and J. Zuntz
Subjects: Astronomy, QB1-991, Astrophysics, QB460-466
Abstract: We present a joint cosmic shear analysis of the Dark Energy Survey (DES Y3) and the Kilo-Degree Survey (KiDS-1000) in a collaborative effort between the two survey teams. We find consistent cosmological parameter constraints between DES Y3 and KiDS-1000 which, when combined in a joint-survey analysis, constrain the parameter $S_8 = \sigma_8 \sqrt{\Omega_{\rm m}/0.3}$ with a mean value of $0.790^{+0.018}_{-0.014}$. The mean marginal is lower than the maximum a posteriori estimate, $S_8=0.801$, owing to skewness in the marginal distribution and projection effects in the multi-dimensional parameter space. Our results are consistent with $S_8$ constraints from observations of the cosmic microwave background by Planck, with agreement at the $1.7\sigma$ level. We use a Hybrid analysis pipeline, defined from a mock survey study quantifying the impact of the different analysis choices originally adopted by each survey team. We review intrinsic alignment models, baryon feedback mitigation strategies, priors, samplers and models of the non-linear matter power spectrum. Supplementary information: you can download the chains here or create your own chains with CosmoSIS here.
Published: 2023
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5. DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys

Author: T.M.C. Abbott, M. Aguena, A. Alarcon, O. Alves, A. Amon, F. Andrade-Oliveira, M. Asgari, S. Avila, D. Bacon, K. Bechtol, M. R. Becker, G. M. Bernstein, E. Bertin, M. Bilicki, J. Blazek, S. Bocquet, D. Brooks, P. Burger, D. L. Burke, H. Camacho, A. Campos, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, R. Cawthon, C. Chang, R. Chen, A. Choi, C. Conselice, J. Cordero, M. Crocce, L. N. da Costa, M. E. da Silva Pereira, R. Dalal, C. Davis, J. T. A. de Jong, J. DeRose, S. Desai, H. T. Diehl, S. Dodelson, P. Doel, C. Doux, A. Drlica-Wagner, A. Dvornik, K. Eckert, T. F. Eifler, J. Elvin-Poole, S. Everett, X. Fang, I. Ferrero, A. Ferté, B. Flaugher, O. Friedrich, J. Frieman, J. García-Bellido, M. Gatti, G. Giannini, B. Giblin, D. Gruen, R. A. Gruendl, G. Gutierrez, I. Harrison, W. G. Hartley, K. Herner, C. Heymans, H. Hildebrandt, S. R. Hinton, H. Hoekstra, D. L. Hollowood, K. Honscheid, H. Huang, E. M. Huff, D. Huterer, D. J. James, M. Jarvis, N. Jeffrey, T. Jeltema, B. Joachimi, S. Joudaki, A. Kannawadi, E. Krause, K. Kuehn, K. Kuijken, N. Kuropatkin, O. Lahav, P.-F. Leget, P. Lemos, S.-S. Li, X. Li, A. R. Liddle, M. Lima, C.-A. Lin, H. Lin, N. MacCrann, C. Mahony, J. L. Marshall, J. McCullough, J. Mena-Fernández, F. Menanteau, R. Miquel, J. J. Mohr, J. Muir, J. Myles, N. Napolitano, A. Navarro-Alsina, R. L. C. Ogando, A. Palmese, S. Pandey, Y. Park, M. Paterno, J. A. Peacock, D. Petravick, A. Pieres, A. A. Plazas Malagón, A. Porredon, J. Prat, M. Radovich, M. Raveri, R. Reischke, N. C. Robertson, R. P. Rollins, A. K. Romer, A. Roodman, E. S. Rykoff, S. Samuroff, C. Sánchez, E. Sanchez, J. Sanchez, P. Schneider, L. F. Secco, I. Sevilla-Noarbe, H.-Y. Shan, E. Sheldon, T. Shin, C. Sifón, M. Smith, M. Soares-Santos, B. Stölzner, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, C. To, M. A. Troxel, T. Tröster, I. Tutusaus, J. L. van den Busch, T. N. Varga, A. R. Walker, N. Weaverdyck, R. H. Wechsler, J. Weller, P. Wiseman, A. H. Wright, B. Yanny, B. Yin, M. Yoon, Y. Zhang, and J. Zuntz
Subjects: Astronomy, QB1-991, Astrophysics, QB460-466
Published: 2023
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6. Environmental Quenching of Low-surface-brightness Galaxies Near Hosts from Large Magellanic Cloud to Milky Way Mass Scales

Author: J. Bhattacharyya, A. H. G. Peter, P. Martini, B. Mutlu-Pakdil, A. Drlica-Wagner, A. B. Pace, L. E. Strigari, T.-Y. Cheng, D. Roberts, D. Tanoglidis, M. Aguena, O. Alves, F. Andrade-Oliveira, D. Bacon, D. Brooks, A. Carnero Rosell, J. Carretero, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, P. Doel, I. Ferrero, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, R. Miquel, A. Palmese, A. Pieres, A. A. Plazas Malagón, E. Sanchez, B. Santiago, M. Schubnell, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, M. Vincenzi, A. R. Walker, N. Weaverdyck, P. Wiseman, and Dark Energy Survey Collaboration
Subjects: Galaxy colors, Low surface brightness galaxies, Galaxy quenching, Galaxy evolution, Astrophysics, QB460-466
Abstract: Low-surface-brightness galaxies (LSBGs) are excellent probes of quenching and other environmental processes near massive galaxies. We study an extensive sample of LSBGs near massive hosts in the local universe that are distributed across a diverse range of environments. The LSBGs with surface-brightness ${\mu }_{\mathrm{eff},{g}}\gt 24.2\,\mathrm{mag}\,{\mathrm{arcsec}}^{-2}$ are drawn from the Dark Energy Survey Year 3 catalog while the hosts with masses $9.0\lt \mathrm{log}({{ \mathcal M }}_{\star }/{M}_{\odot })\lt 11.0$ comparable to the Milky Way and the Large Magellanic Cloud are selected from the z0MGS sample. We study the projected radial density profiles of LSBGs as a function of their color and surface brightness around hosts in both the rich Fornax–Eridanus cluster environment and the low-density field. We detect an overdensity with respect to the background density, out to 2.5 times the virial radius for both hosts in the cluster environment and the isolated field galaxies. When the LSBG sample is split by g − i color or surface brightness μ _eff, _g , we find the LSBGs closer to their hosts are significantly redder and brighter, like their high-surface-brightness counterparts. The LSBGs form a clear “red sequence” in both the cluster and isolated environments that is visible beyond the virial radius of the hosts. This suggests preprocessing of infalling LSBGs and a quenched backsplash population around both host samples. More so, the relative prominence of the “blue cloud” feature implies that preprocessing is ongoing near the isolated hosts compared to the cluster environment where the LSBGs are already well processed.
Published: 2024
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7. The Dark Energy Survey Supernova Program: Cosmological Analysis and Systematic Uncertainties

Author: M. Vincenzi, D. Brout, P. Armstrong, B. Popovic, G. Taylor, M. Acevedo, R. Camilleri, R. Chen, T. M. Davis, J. Lee, C. Lidman, S. R. Hinton, L. Kelsey, R. Kessler, A. Möller, H. Qu, M. Sako, B. Sanchez, D. Scolnic, M. Smith, M. Sullivan, P. Wiseman, J. Asorey, B. A. Bassett, D. Carollo, A. Carr, R. J. Foley, C. Frohmaier, L. Galbany, K. Glazebrook, O. Graur, E. Kovacs, K. Kuehn, U. Malik, R. C. Nichol, B. Rose, B. E. Tucker, M. Toy, D. L. Tucker, F. Yuan, T. M. C. Abbott, M. Aguena, O. Alves, S. S. Allam, F. Andrade-Oliveira, J. Annis, D. Bacon, K. Bechtol, G. M. Bernstein, D. Brooks, D. L. Burke, A. Carnero Rosell, J. Carretero, F. J. Castander, C. Conselice, L. N. da Costa, M. E. S. Pereira, S. Desai, H. T. Diehl, P. Doel, I. Ferrero, B. Flaugher, D. Friedel, J. Frieman, J. García-Bellido, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, D. L. Hollowood, K. Honscheid, D. Huterer, D. J. James, N. Kuropatkin, O. Lahav, S. Lee, H. Lin, J. L. Marshall, J. Mena-Fernández, F. Menanteau, R. Miquel, A. Palmese, A. Pieres, A. A. Plazas Malagón, A. Porredon, A. K. Romer, A. Roodman, E. Sanchez, D. Sanchez Cid, M. Schubnell, I. Sevilla-Noarbe, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, A. R. Walker, N. Weaverdyck, M. Yamamoto, and DES Collaboration
Subjects: Type Ia supernovae, Cosmological constant experiments, Dark energy, Cosmological parameters, Astrophysics, QB460-466
Abstract: We present the full Hubble diagram of photometrically classified Type Ia supernovae (SNe Ia) from the Dark Energy Survey supernova program (DES-SN). DES-SN discovered more than 20,000 SN candidates and obtained spectroscopic redshifts of 7000 host galaxies. Based on the light-curve quality, we select 1635 photometrically identified SNe Ia with spectroscopic redshift 0.10 < z < 1.13, which is the largest sample of supernovae from any single survey and increases the number of known z > 0.5 supernovae by a factor of 5. In a companion paper, we present cosmological results of the DES-SN sample combined with 194 spectroscopically classified SNe Ia at low redshift as an anchor for cosmological fits. Here we present extensive modeling of this combined sample and validate the entire analysis pipeline used to derive distances. We show that the statistical and systematic uncertainties on cosmological parameters are ${\sigma }_{{{\rm{\Omega }}}_{M},\mathrm{stat}+\mathrm{sys}}^{{\rm{\Lambda }}\mathrm{CDM}}=$ 0.017 in a flat ΛCDM model, and $({\sigma }_{{{\rm{\Omega }}}_{M}},{\sigma }_{w}{)}_{\mathrm{stat}+\mathrm{sys}}^{w\mathrm{CDM}}$ = (0.082, 0.152) in a flat w CDM model. Combining the DES SN data with the highly complementary cosmic microwave background measurements by Planck Collaboration reduces by a factor of 4 uncertainties on cosmological parameters. In all cases, statistical uncertainties dominate over systematics. We show that uncertainties due to photometric classification make up less than 10% of the total systematic uncertainty budget. This result sets the stage for the next generation of SN cosmology surveys such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time.
Published: 2024
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8. The Dark Energy Survey Supernova Program: Light Curves and 5 Yr Data Release

Author: B. O. Sánchez, D. Brout, M. Vincenzi, M. Sako, K. Herner, R. Kessler, T. M. Davis, D. Scolnic, M. Acevedo, J. Lee, A. Möller, H. Qu, L. Kelsey, P. Wiseman, P. Armstrong, B. Rose, R. Camilleri, R. Chen, L. Galbany, E. Kovacs, C. Lidman, B. Popovic, M. Smith, P. Shah, M. Sullivan, M. Toy, T. M. C. Abbott, M. Aguena, S. Allam, O. Alves, J. Annis, J. Asorey, S. Avila, D. Bacon, D. Brooks, D. L. Burke, A. Carnero Rosell, D. Carollo, J. Carretero, L. N. da Costa, F. J. Castander, S. Desai, H. T. Diehl, J. Duarte, S. Everett, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, M. Gatti, E. Gaztanaga, G. Giannini, K. Glazebrook, S. González-Gaitán, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, S. Lee, G. F. Lewis, H. Lin, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. Myles, R. C. Nichol, R. L. C. Ogando, A. Palmese, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, A. Porredon, A. K. Romer, E. Sanchez, D. Sanchez Cid, I. Sevilla-Noarbe, E. Suchyta, M. E. C. Swanson, G. Tarle, B. E. Tucker, D. L. Tucker, V. Vikram, A. R. Walker, N. Weaverdyck, and DES Collaboration
Subjects: Cosmology, Type Ia supernovae, Dark energy, Astrophysics, QB460-466
Abstract: We present griz photometric light curves for the full 5 yr of the Dark Energy Survey Supernova (DES-SN) program, obtained with both forced point-spread function photometry on difference images ( DiffImg ) performed during survey operations, and scene modelling photometry (SMP) on search images processed after the survey. This release contains 31,636 DiffImg and 19,706 high-quality SMP light curves, the latter of which contain 1635 photometrically classified SNe that pass cosmology quality cuts. This sample spans the largest redshift ( z ) range ever covered by a single SN survey (0.1 < z < 1.13) and is the largest single sample from a single instrument of SNe ever used for cosmological constraints. We describe in detail the improvements made to obtain the final DES-SN photometry and provide a comparison to what was used in the 3 yr DES-SN spectroscopically confirmed Type Ia SN sample. We also include a comparative analysis of the performance of the SMP photometry with respect to the real-time DiffImg forced photometry and find that SMP photometry is more precise, more accurate, and less sensitive to the host-galaxy surface brightness anomaly. The public release of the light curves and ancillary data can be found at http://github.com/des-science/DES-SN5YR and doi:10.5281/zenodo.12720777.
Published: 2024
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9. The Dark Energy Survey Supernova Program: Cosmological Biases from Host Galaxy Mismatch of Type Ia Supernovae

Author: H. Qu, M. Sako, M. Vincenzi, C. Sánchez, D. Brout, R. Kessler, R. Chen, T. Davis, L. Galbany, L. Kelsey, J. Lee, C. Lidman, B. Popovic, B. Rose, D. Scolnic, M. Smith, M. Sullivan, P. Wiseman, T. M. C. Abbott, M. Aguena, O. Alves, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, J. Carretero, L. N. da Costa, M. E. S. Pereira, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, J. L. Marshall, J. Mena-Fernández, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas-Malagón, M. Raveri, E. Sanchez, I. Sevilla-Noarbe, M. Soares-Santos, E. Suchyta, G. Tarle, N. Weaverdyck, and DES Collaboration
Subjects: Cosmology, Type Ia supernovae, Dark energy, Astrophysics, QB460-466
Abstract: Redshift measurements, primarily obtained from host galaxies, are essential for inferring cosmological parameters from type Ia supernovae (SNe Ia). Matching SNe to host galaxies using images is nontrivial, resulting in a subset of SNe with mismatched hosts and thus incorrect redshifts. We evaluate the host galaxy mismatch rate and resulting biases on cosmological parameters from simulations modeled after the Dark Energy Survey 5 Yr (DES-SN5YR) photometric sample. For both DES-SN5YR data and simulations, we employ the directional light radius method for host galaxy matching. In our SN Ia simulations, we find that 1.7% of SNe are matched to the wrong host galaxy, with redshift differences between the true and matched hosts of up to 0.6. Using our analysis pipeline, we determine the shift in the dark energy equation of state parameter (Δ w ) due to including SNe with incorrect host galaxy matches. For SN Ia–only simulations, we find Δ w = 0.0013 ± 0.0026 with constraints from the cosmic microwave background. Including core-collapse SNe and peculiar SNe Ia in the simulation, we find that Δ w ranges from 0.0009 to 0.0032, depending on the photometric classifier used. This bias is an order of magnitude smaller than the expected total uncertainty on w from the DES-SN5YR sample of ∼0.03. We conclude that the bias on w from host galaxy mismatch is much smaller than the uncertainties expected from the DES-SN5YR sample, but we encourage further studies to reduce this bias through better host-matching algorithms or selection cuts.
Published: 2024
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10. A Search for Faint Resolved Galaxies Beyond the Milky Way in DES Year 6: A New Faint, Diffuse Dwarf Satellite of NGC 55

Author: M. McNanna, K. Bechtol, S. Mau, E. O. Nadler, J. Medoff, A. Drlica-Wagner, W. Cerny, D. Crnojević, B. Mutlu-Pakdıl, A. K. Vivas, A. B. Pace, J. L. Carlin, M. L. M. Collins, P. S. Ferguson, D. Martínez-Delgado, C. E. Martínez-Vázquez, N. E. D. Noel, A. H. Riley, D. J. Sand, A. Smercina, E. Tollerud, R. H. Wechsler, T. M. C. Abbott, M. Aguena, O. Alves, D. Bacon, C. R. Bom, D. Brooks, D. L. Burke, J. A. Carballo-Bello, A. Carnero Rosell, J. Carretero, L. N. da Costa, T. M. Davis, J. De Vicente, H. T. Diehl, P. Doel, I. Ferrero, J. Frieman, G. Giannini, D. Gruen, G. Gutierrez, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, R. Miquel, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, J. D. Sakowska, E. Sanchez, D. Sanchez Cid, B. Santiago, I. Sevilla-Noarbe, M. Smith, G. S. Stringfellow, E. Suchyta, M. E. C. Swanson, G. Tarle, N. Weaverdyck, P. Wiseman, and DES & DELVE Collaboration
Subjects: Local Group, Low surface brightness galaxies, Dwarf galaxies, Astrophysics, QB460-466
Abstract: We report results from a systematic wide-area search for faint dwarf galaxies at heliocentric distances from 0.3 to 2 Mpc using the full 6 yr of data from the Dark Energy Survey (DES). Unlike previous searches over the DES data, this search specifically targeted a field population of faint galaxies located beyond the Milky Way virial radius. We derive our detection efficiency for faint, resolved dwarf galaxies in the Local Volume with a set of synthetic galaxies and expect our search to be complete to M _V ∼ (−7, −10) mag for galaxies at D = (0.3, 2.0) Mpc. We find no new field dwarfs in the DES footprint, but we report the discovery of one high-significance candidate dwarf galaxy at a distance of ${2.2}_{-0.12}^{+0.05}\,\mathrm{Mpc}$ , a potential satellite of the Local Volume galaxy NGC 55, separated by 47′ (physical separation as small as 30 kpc). We estimate this dwarf galaxy to have an absolute V -band magnitude of $-{8.0}_{-0.3}^{+0.5}\,\mathrm{mag}$ and an azimuthally averaged physical half-light radius of ${2.2}_{-0.4}^{+0.5}\,\mathrm{kpc}$ , making this one of the lowest surface brightness galaxies ever found with $\mu =32.3\,\mathrm{mag}\,{\mathrm{arcsec}}^{-2}$ . This is the largest, most diffuse galaxy known at this luminosity, suggesting possible tidal interactions with its host.
Published: 2024
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11. Designing an Optimal Kilonova Search Using DECam for Gravitational-wave Events

Author: C. R. Bom, J. Annis, A. Garcia, A. Palmese, N. Sherman, M. Soares-Santos, L. Santana-Silva, R. Morgan, K. Bechtol, T. Davis, H. T. Diehl, S. S. Allam, T. G. Bachmann, B. M. O. Fraga, J. García-Bellido, M. S. S. Gill, K. Herner, C. D. Kilpatrick, M. Makler, F. Olivares E., M. E. S. Pereira, J. Pineda, A. Santos, D. L. Tucker, M. P. Wiesner, M. Aguena, O. Alves, D. Bacon, P. H. Bernardinelli, E. Bertin, S. Bocquet, D. Brooks, M. Carrasco Kind, J. Carretero, C. Conselice, M. Costanzi, L. N. da Costa, J. De Vicente, S. Desai, P. Doel, S. Everett, I. Ferrero, J. Frieman, M. Gatti, D. W. Gerdes, D. Gruen, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, P. Melchior, J. Mena-Fernández, F. Menanteau, A. Pieres, A. A. Plazas Malagón, M. Raveri, M. Rodriguez-Monroy, E. Sanchez, B. Santiago, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, and N. Weaverdyck
Subjects: Gravitational wave astronomy, Astronomical methods, Astrostatistics tools, Transient detection, Astrophysics, QB460-466
Abstract: We address the problem of optimally identifying all kilonovae detected via gravitational-wave emission in the upcoming LIGO/Virgo/KAGRA observing run, O4, which is expected to be sensitive to a factor of ∼7 more binary neutron star (BNS) alerts than previously. Electromagnetic follow-up of all but the brightest of these new events will require >1 m telescopes, for which limited time is available. We present an optimized observing strategy for the DECam during O4. We base our study on simulations of gravitational-wave events expected for O4 and wide-prior kilonova simulations. We derive the detectabilities of events for realistic observing conditions. We optimize our strategy for confirming a kilonova while minimizing telescope time. For a wide range of kilonova parameters, corresponding to a fainter kilonova compared to GW170817/AT 2017gfo, we find that, with this optimal strategy, the discovery probability for electromagnetic counterparts with the DECam is ∼80% at the nominal BNS gravitational-wave detection limit for O4 (190 Mpc), which corresponds to an ∼30% improvement compared to the strategy adopted during the previous observing run. For more distant events (∼330 Mpc), we reach an ∼60% probability of detection, a factor of ∼2 increase. For a brighter kilonova model dominated by the blue component that reproduces the observations of GW170817/AT 2017gfo, we find that we can reach ∼90% probability of detection out to 330 Mpc, representing an increase of ∼20%, while also reducing the total telescope time required to follow up events by ∼20%.
Published: 2024
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12. Dark Energy Survey Year 3 Results: Deep Field optical + near-infrared images and catalogue

Author: W G Hartley, A Choi, A Amon, R A Gruendl, E Sheldon, I Harrison, G M Bernstein, I Sevilla-Noarbe, B Yanny, K Eckert, H T Diehl, A Alarcon, M Banerji, K Bechtol, R Buchs, S Cantu, C Conselice, J Cordero, C Davis, T M Davis, S Dodelson, A Drlica-Wagner, S Everett, A Ferté, D Gruen, K Honscheid, M Jarvis, M D Johnson, N Kokron, N MacCrann, J Myles, A B Pace, A Palmese, F Paz-Chinchón, M E S Pereira, A A Plazas, J Prat, M Rodriguez-Monroy, E S Rykoff, S Samuroff, C Sánchez, L F Secco, F Tarsitano, A Tong, M A Troxel, Z Vasquez, K Wang, C Zhou, T M C Abbott, M Aguena, S Allam, J Annis, D Bacon, E Bertin, S Bhargava, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, M Costanzi, M Crocce, L N da Costa, J De Vicente, J DeRose, S Desai, J P Dietrich, T F Eifler, J Elvin-Poole, I Ferrero, B Flaugher, P Fosalba, J García-Bellido, E Gaztanaga, D W Gerdes, J Gschwend, G Gutierrez, S R Hinton, D L Hollowood, D Huterer, D J James, S Kent, E Krause, K Kuehn, N Kuropatkin, O Lahav, H Lin, M A G Maia, M March, J L Marshall, P Martini, P Melchior, F Menanteau, R Miquel, J J Mohr, R Morgan, E Neilsen, R L C Ogando, S Pandey, A K Romer, A Roodman, M Sako, E Sanchez, V Scarpine, S Serrano, M Smith, M Soares-Santos, E Suchyta, M E C Swanson, G Tarle, D Thomas, C To, T N Varga, A R Walker, W Wester, R D Wilkinson, and J Zuntz
Published: 2021
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13. Chemical Analysis of the Brightest Star of the Cetus II Ultrafaint Dwarf Galaxy Candidate

Author: K. B. Webber, T. T. Hansen, J. L. Marshall, J. D. Simon, A. B. Pace, B. Mutlu-Pakdil, A. Drlica-Wagner, C. E. Martínez-Vázquez, M. Aguena, S. S. Allam, O. Alves, E. Bertin, D. Brooks, A. Carnero Rosell, J. Carretero, L. N. da Costa, J. De Vicente, P. Doel, I. Ferrero, D. Friedel, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, J. Mena-Fernández, F. Menanteau, R. Miquel, R. L. C. Ogando, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, E. Sanchez, B. Santiago, J. Allyn Smith, M. Smith, E. Suchyta, G. Tarle, C. To, N. Weaverdyck, and B. Yanny
Subjects: Chemical abundances, Stellar abundances, Astrophysics, QB460-466
Abstract: We present a detailed chemical abundance analysis of the brightest star in the ultrafaint dwarf (UFD) galaxy candidate Cetus II from high-resolution Magellan/MIKE spectra. For this star, DES J011740.53-173053, abundances or upper limits of 18 elements from carbon to europium are derived. Its chemical abundances generally follow those of other UFD galaxy stars, with a slight enhancement of the α -elements (Mg, Si, and Ca) and low neutron-capture element (Sr, Ba, and Eu) abundances supporting the classification of Cetus II as a likely UFD. The star exhibits lower Sc, Ti, and V abundances than Milky Way (MW) halo stars with similar metallicity. This signature is consistent with yields from a supernova originating from a star with a mass of ∼11.2 M _⊙ . In addition, the star has a potassium abundance of [K/Fe] = 0.81, which is somewhat higher than the K abundances of MW halo stars with similar metallicity, a signature that is also present in a number of UFD galaxies. A comparison including globular clusters and stellar stream stars suggests that high K is a specific characteristic of some UFD galaxy stars and can thus be used to help classify objects as UFD galaxies.
Published: 2023
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14. Photometry of Outer Solar System Objects from the Dark Energy Survey. I. Photometric Methods, Light-curve Distributions, and Trans-Neptunian Binaries

Author: Pedro H. Bernardinelli, Gary M. Bernstein, Nicholas Jindal, T. M. C. Abbott, M. Aguena, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, D. Friedel, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas Malagón, M. Raveri, E. Sanchez, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, A. R. Walker, P. Wiseman, Y. Zhang, and (The DES Collaboration)
Subjects: Kuiper belt, Trans-Neptunian objects, Photometry, Asteroid satellites, Astrophysics, QB460-466
Abstract: We report the methods of and initial scientific inferences from the extraction of precision photometric information for the >800 trans-Neptunian objects (TNOs) discovered in the images of the Dark Energy Survey (DES). Scene-modeling photometry is used to obtain shot-noise-limited flux measures for each exposure of each TNO, with background sources subtracted. Comparison of double-source fits to the pixel data with single-source fits are used to identify and characterize two binary TNO systems. A Markov Chain Monte Carlo method samples the joint likelihood of the intrinsic colors of each source as well as the amplitude of its flux variation, given the time series of multiband flux measurements and their uncertainties. A catalog of these colors and light-curve amplitudes A is included with this publication. We show how to assign a likelihood to the distribution q ( A ) of light-curve amplitudes in any subpopulation. Using this method, we find decisive evidence (i.e., evidence ratio
Published: 2023
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15. Identification of Galaxy–Galaxy Strong Lens Candidates in the DECam Local Volume Exploration Survey Using Machine Learning

Author: E. A. Zaborowski, A. Drlica-Wagner, F. Ashmead, J. F. Wu, R. Morgan, C. R. Bom, A. J. Shajib, S. Birrer, W. Cerny, E. J. Buckley-Geer, B. Mutlu-Pakdil, P. S. Ferguson, K. Glazebrook, S. J. Gonzalez Lozano, Y. Gordon, M. Martinez, V. Manwadkar, J. O’Donnell, J. Poh, A. Riley, J. D. Sakowska, L. Santana-Silva, B. X. Santiago, D. Sluse, C. Y. Tan, E. J. Tollerud, A. Verma, J. A. Carballo-Bello, Y. Choi, D. J. James, N. Kuropatkin, C. E. Martínez-Vázquez, D. L. Nidever, J. L. Nilo Castellon, N. E. D. Noël, K. A. G. Olsen, A. B. Pace, S. Mau, B. Yanny, A. Zenteno, T. M. C. Abbott, M. Aguena, O. Alves, F. Andrade-Oliveira, S. Bocquet, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, C. J. Conselice, M. Costanzi, M. E. S. Pereira, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, S. Everett, I. Ferrero, B. Flaugher, D. Friedel, J. Frieman, J. García-Bellido, D. Gruen, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, H. Lin, J. L. Marshall, P. Melchior, J. Mena-Fernández, F. Menanteau, R. Miquel, A. Palmese, F. Paz-Chinchón, A. Pieres, A. A. Plazas Malagón, J. Prat, M. Rodriguez-Monroy, A. K. Romer, E. Sanchez, V. Scarpine, I. Sevilla-Noarbe, M. Smith, E. Suchyta, C. To, N. Weaverdyck, and DELVE & DES Collaborations
Subjects: Strong gravitational lensing, Astrophysics, QB460-466
Abstract: We perform a search for galaxy–galaxy strong lens systems using a convolutional neural network (CNN) applied to imaging data from the first public data release of the DECam Local Volume Exploration Survey, which contains ∼520 million astronomical sources covering ∼4000 deg ^2 of the southern sky to a 5 σ point–source depth of g = 24.3, r = 23.9, i = 23.3, and z = 22.8 mag. Following the methodology of similar searches using Dark Energy Camera data, we apply color and magnitude cuts to select a catalog of ∼11 million extended astronomical sources. After scoring with our CNN, the highest-scoring 50,000 images were visually inspected and assigned a score on a scale from 0 (not a lens) to 3 (very probable lens). We present a list of 581 strong lens candidates, 562 of which are previously unreported. We categorize our candidates using their human-assigned scores, resulting in 55 Grade A candidates, 149 Grade B candidates, and 377 Grade C candidates. We additionally highlight eight potential quadruply lensed quasars from this sample. Due to the location of our search footprint in the northern Galactic cap ( b > 10 deg) and southern celestial hemisphere (decl. < 0 deg), our candidate list has little overlap with other existing ground-based searches. Where our search footprint does overlap with other searches, we find a significant number of high-quality candidates that were previously unidentified, indicating a degree of orthogonality in our methodology. We report properties of our candidates including apparent magnitude and Einstein radius estimated from the image separation.
Published: 2023
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16. Synchronous Rotation in the (136199) Eris–Dysnomia System

Author: Gary M. Bernstein, Bryan J. Holler, Rosario Navarro-Escamilla, Pedro H. Bernardinelli, T. M. C. Abbott, M. Aguena, S. Allam, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, D. Brooks, D. L. Burke, A. Carnero Rosell, J. Carretero, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, P. Doel, A. Drlica-Wagner, S. Everett, I. Ferrero, J. Frieman, J. García-Bellido, D. W. Gerdes, D. Gruen, G. Gutierrez, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, J. L. Marshall, J. Mena-Fernández, R. Miquel, R. L. C. Ogando, A. Pieres, A. A. Plazas Malagón, M. Raveri, K. Reil, E. Sanchez, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, P. Wiseman, and The DES Collaboration
Subjects: Trans-Neptunian objects, Small Solar System bodies, Tidal friction, Dwarf planets, Asteroid rotation, Astronomy, QB1-991
Abstract: We combine photometry of Eris from a 6 month campaign on the Palomar 60 inch telescope in 2015, a 1 month Hubble Space Telescope WFC3 campaign in 2018, and Dark Energy Survey data spanning 2013–2018 to determine a light curve of definitive period 15.771 ± 0.008 days (1 σ formal uncertainties), with nearly sinusoidal shape and peak-to-peak flux variation of 3%. This is consistent at part-per-thousand precision with the P = 15.785 90 ± 0.00005 day sidereal period of Dysnomia’s orbit around Eris, strengthening the recent detection of synchronous rotation of Eris by Szakáts et al. with independent data. Photometry from Gaia are consistent with the same light curve. We detect a slope of 0.05 ± 0.01 mag per degree of Eris’s brightness with respect to illumination phase averaged across g , V , and r bands, intermediate between Pluto’s and Charon’s values. Variations of 0.3 mag are detected in Dysnomia’s brightness, plausibly consistent with a double-peaked light curve at the synchronous period. The synchronous rotation of Eris is consistent with simple tidal models initiated with a giant-impact origin of the binary, but is difficult to reconcile with gravitational capture of Dysnomia by Eris. The high albedo contrast between Eris and Dysnomia remains unexplained in the giant-impact scenario.
Published: 2023
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17. The Dark Energy Survey Supernova Program: Corrections on Photometry Due to Wavelength-dependent Atmospheric Effects

Author: J. Lee, M. Acevedo, M. Sako, M. Vincenzi, D. Brout, B. Sanchez, R. Chen, T. M. Davis, M. Jarvis, D. Scolnic, H. Qu, L. Galbany, R. Kessler, J. Lasker, M. Sullivan, P. Wiseman, M. Aguena, S. Allam, O. Alves, F. Andrade-Oliveira, E. Bertin, S. Bocquet, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, D. Friedel, J. Frieman, J. García-Bellido, D. W. Gerdes, D. Gruen, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, S. Kent, K. Kuehn, N. Kuropatkin, J. Mena-Fernández, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas Malagón, M. Raveri, K. Reil, M. Rodriguez-Monroy, E. Sanchez, V. Scarpine, I. Sevilla-Noarbe, M. Smith, E. Suchyta, G. Tarle, C. To, N. Weaverdyck, and DES Collaboration
Subjects: Type Ia supernovae, Photometry, Atmospheric effects, Cosmology, Astronomy, QB1-991
Abstract: Wavelength-dependent atmospheric effects impact photometric supernova flux measurements for ground-based observations. We present corrections on supernova flux measurements from the Dark Energy Survey Supernova Program’s 5YR sample (DES-SN5YR) for differential chromatic refraction (DCR) and wavelength-dependent seeing, and we show their impact on the cosmological parameters w and Ω _m . We use g − i colors of Type Ia supernovae to quantify astrometric offsets caused by DCR and simulate point-spread functions (PSFs) using the GalSIM package to predict the shapes of the PSFs with DCR and wavelength-dependent seeing. We calculate the magnitude corrections and apply them to the magnitudes computed by the DES-SN5YR photometric pipeline. We find that for the DES-SN5YR analysis, not accounting for the astrometric offsets and changes in the PSF shape cause an average bias of +0.2 mmag and −0.3 mmag, respectively, with standard deviations of 0.7 mmag and 2.7 mmag across all DES observing bands ( griz ) throughout all redshifts. When the DCR and seeing effects are not accounted for, we find that w and Ω _m are lower by less than 0.004 ± 0.02 and 0.001 ± 0.01, respectively, with 0.02 and 0.01 being the 1 σ statistical uncertainties. Although we find that these biases do not limit the constraints of the DES-SN5YR sample, future surveys with much higher statistics, lower systematics, and especially those that observe in the u band will require these corrections as wavelength-dependent atmospheric effects are larger at shorter wavelengths. We also discuss limitations of our method and how they can be better accounted for in future surveys.
Published: 2023
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18. Timing the r-process Enrichment of the Ultra-faint Dwarf Galaxy Reticulum II

Author: Joshua D. Simon, Thomas M. Brown, Burçin Mutlu-Pakdil, Alexander P. Ji, Alex Drlica-Wagner, Roberto J. Avila, Clara E. Martínez-Vázquez, Ting S. Li, Eduardo Balbinot, Keith Bechtol, Anna Frebel, Marla Geha, Terese T. Hansen, David J. James, Andrew B. Pace, M. Aguena, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, J. De Vicente, S. Desai, P. Doel, S. Everett, I. Ferrero, J. Frieman, J. García-Bellido, M. Gatti, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, N. Kuropatkin, J. L. Marshall, J. Mena-Fernández, R. Miquel, A. Palmese, F. Paz-Chinchón, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, M. Raveri, M. Rodriguez-Monroy, E. Sanchez, B. Santiago, V. Scarpine, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, M. Vincenzi, N. Weaverdyck, and R. D. Wilkinson
Subjects: Dwarf galaxies, Local Group, Stellar populations, Galaxy ages, HST photometry, Nucleosynthesis, Astrophysics, QB460-466
Abstract: The ultra-faint dwarf galaxy Reticulum II (Ret II) exhibits a unique chemical evolution history, with ${72}_{-12}^{+10}$ % of its stars strongly enhanced in r -process elements. We present deep Hubble Space Telescope photometry of Ret II and analyze its star formation history. As in other ultra-faint dwarfs, the color–magnitude diagram is best fit by a model consisting of two bursts of star formation. If we assume that the bursts were instantaneous, then the older burst occurred around the epoch of reionization, forming ∼80% of the stars in the galaxy, while the remainder of the stars formed ∼3 Gyr later. When the bursts are allowed to have nonzero durations, we obtain slightly better fits. The best-fitting model in this case consists of two bursts beginning before reionization, with approximately half the stars formed in a short (100 Myr) burst and the other half in a more extended period lasting 2.6 Gyr. Considering the full set of viable star formation history models, we find that 28% of the stars formed within 500 ± 200 Myr of the onset of star formation. The combination of the star formation history and the prevalence of r -process-enhanced stars demonstrates that the r -process elements in Ret II must have been synthesized early in its initial star-forming phase. We therefore constrain the delay time between the formation of the first stars in Ret II and the r -process nucleosynthesis to be less than 500 Myr. This measurement rules out an r -process source with a delay time of several Gyr or more, such as GW170817.
Published: 2023
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19. DeepZipper. II. Searching for Lensed Supernovae in Dark Energy Survey Data with Deep Learning

Author: R. Morgan, B. Nord, K. Bechtol, A. Möller, W. G. Hartley, S. Birrer, S. J. González, M. Martinez, R. A. Gruendl, E. J. Buckley-Geer, A. J. Shajib, A. Carnero Rosell, C. Lidman, T. Collett, T. M. C. Abbott, M. Aguena, F. Andrade-Oliveira, J. Annis, D. Bacon, S. Bocquet, D. Brooks, D. L. Burke, M. Carrasco Kind, J. Carretero, F. J. Castander, C. Conselice, L. N. da Costa, M. Costanzi, J. De Vicente, S. Desai, P. Doel, S. Everett, I. Ferrero, B. Flaugher, D. Friedel, J. Frieman, J. García-Bellido, E. Gaztanaga, D. Gruen, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, N. Kuropatkin, O. Lahav, M. Lima, F. Menanteau, R. Miquel, A. Palmese, F. Paz-Chinchón, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, J. Prat, M. Rodriguez-Monroy, A. K. Romer, A. Roodman, E. Sanchez, V. Scarpine, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, and T. N. Varga
Subjects: Strong gravitational lensing, Supernovae, Astrophysics, QB460-466
Abstract: Gravitationally lensed supernovae (LSNe) are important probes of cosmic expansion, but they remain rare and difficult to find. Current cosmic surveys likely contain 5–10 LSNe in total while next-generation experiments are expected to contain several hundred to a few thousand of these systems. We search for these systems in observed Dark Energy Survey (DES) five year SN fields—10 3 sq. deg. regions of sky imaged in the griz bands approximately every six nights over five years. To perform the search, we utilize the DeepZipper approach: a multi-branch deep learning architecture trained on image-level simulations of LSNe that simultaneously learns spatial and temporal relationships from time series of images. We find that our method obtains an LSN recall of 61.13% and a false-positive rate of 0.02% on the DES SN field data. DeepZipper selected 2245 candidates from a magnitude-limited ( m _i < 22.5) catalog of 3,459,186 systems. We employ human visual inspection to review systems selected by the network and find three candidate LSNe in the DES SN fields.
Published: 2023
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20. The Dark Energy Survey supernova programme: modelling selection efficiency and observed core-collapse supernova contamination

Author: M Vincenzi, M Sullivan, O Graur, D Brout, T M Davis, C Frohmaier, L Galbany, C P Gutiérrez, S R Hinton, R Hounsell, L Kelsey, R Kessler, E Kovacs, S Kuhlmann, J Lasker, C Lidman, A Möller, R C Nichol, M Sako, D Scolnic, M Smith, E Swann, P Wiseman, J Asorey, G F Lewis, R Sharp, B E Tucker, M Aguena, S Allam, S Avila, E Bertin, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, A Choi, M Costanzi, L N da Costa, M E S Pereira, J De Vicente, S Desai, H T Diehl, P Doel, S Everett, I Ferrero, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, D Gruen, R A Gruendl, G Gutierrez, D L Hollowood, K Honscheid, B Hoyle, D J James, K Kuehn, N Kuropatkin, M A G Maia, P Martini, F Menanteau, R Miquel, R Morgan, A Palmese, F Paz-Chinchón, A A Plazas, A K Romer, E Sanchez, V Scarpine, S Serrano, I Sevilla-Noarbe, M Soares-Santos, E Suchyta, G Tarle, D Thomas, C To, T N Varga, A R Walker, and R D Wilkinson
Published: 2021
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21. Dark energy survey year 3 results: weak lensing shape catalogue

Author: M Gatti, E Sheldon, A Amon, M Becker, M Troxel, A Choi, C Doux, N MacCrann, A Navarro-Alsina, I Harrison, D Gruen, G Bernstein, M Jarvis, L F Secco, A Ferté, T Shin, J McCullough, R P Rollins, R Chen, C Chang, S Pandey, I Tutusaus, J Prat, J Elvin-Poole, C Sanchez, A A Plazas, A Roodman, J Zuntz, T M C Abbott, M Aguena, S Allam, J Annis, S Avila, D Bacon, E Bertin, S Bhargava, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, C Conselice, M Costanzi, M Crocce, L N da Costa, T M Davis, J De Vicente, S Desai, H T Diehl, J P Dietrich, P Doel, A Drlica-Wagner, K Eckert, S Everett, I Ferrero, J Frieman, J García-Bellido, D W Gerdes, T Giannantonio, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, S R Hinton, D L Hollowood, K Honscheid, B Hoyle, E M Huff, D Huterer, B Jain, D J James, T Jeltema, E Krause, R Kron, N Kuropatkin, M Lima, M A G Maia, J L Marshall, R Miquel, R Morgan, J Myles, A Palmese, F Paz-Chinchón, E S Rykoff, S Samuroff, E Sanchez, V Scarpine, M Schubnell, S Serrano, I Sevilla-Noarbe, M Smith, M Soares-Santos, E Suchyta, M E C Swanson, G Tarle, D Thomas, C To, D L Tucker, T N Varga, R H Wechsler, J Weller, W Wester, and R D Wilkinson
Published: 2021
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22. Noise from undetected sources in Dark Energy Survey images

Author: K Eckert, G M Bernstein, A Amara, A Amon, A Choi, S Everett, D Gruen, R A Gruendl, E M Huff, N Kuropatkin, A Roodman, E Sheldon, B Yanny, Y Zhang, T M C Abbott, M Aguena, S Avila, K Bechtol, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, M Costanzi, L N da Costa, J De Vicente, S Desai, H T Diehl, J P Dietrich, T F Eifler, A E Evrard, B Flaugher, J Frieman, J García-Bellido, E Gaztanaga, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, R Kron, K Kuehn, M A G Maia, J L Marshall, P Melchior, F Menanteau, R Miquel, R L C Ogando, A Palmese, F Paz-Chinchón, A A Plazas, A K Romer, E Sanchez, V Scarpine, S Serrano, I Sevilla-Noarbe, M Smith, M Soares-Santos, E Suchyta, M E C Swanson, G Tarle, D Thomas, T N Varga, A R Walker, W Wester, R D Wilkinson, and J Zuntz
Published: 2020
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23. Studying Type II supernovae as cosmological standard candles using the Dark Energy Survey

Author: T de Jaeger, L Galbany, S González-Gaitán, R Kessler, A V Filippenko, F Förster, M Hamuy, P J Brown, T M Davis, C P Gutiérrez, C Inserra, G F Lewis, A Möller, D Scolnic, M Smith, D Brout, D Carollo, R J Foley, K Glazebrook, S R Hinton, E Macaulay, B Nichol, M Sako, N E Sommer, B E Tucker, T M C Abbott, M Aguena, S Allam, J Annis, S Avila, E Bertin, S Bhargava, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, M Costanzi, M Crocce, L N da Costa, J De Vicente, S Desai, H T Diehl, P Doel, A Drlica-Wagner, T F Eifler, J Estrada, S Everett, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, K Kuehn, N Kuropatkin, T S Li, M Lima, M A G Maia, F Menanteau, R Miquel, A Palmese, F Paz-Chinchón, A A Plazas, A K Romer, A Roodman, E Sanchez, V Scarpine, M Schubnell, S Serrano, I Sevilla-Noarbe, M Soares-Santos, E Suchyta, M E C Swanson, G Tarle, D Thomas, D L Tucker, T N Varga, A R Walker, J Weller, and R Wilkinson
Published: 2020
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24. STRIDES: a 3.9 per cent measurement of the Hubble constant from the strong lens system DES J0408−5354

Author: A J Shajib, S Birrer, T Treu, A Agnello, E J Buckley-Geer, J H H Chan, L Christensen, C Lemon, H Lin, M Millon, J Poh, C E Rusu, D Sluse, C Spiniello, G C-F Chen, T Collett, F Courbin, C D Fassnacht, J Frieman, A Galan, D Gilman, A More, T Anguita, M W Auger, V Bonvin, R McMahon, G Meylan, K C Wong, T M C Abbott, J Annis, S Avila, K Bechtol, D Brooks, D Brout, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, M Costanzi, L N da Costa, J De Vicente, S Desai, J P Dietrich, P Doel, A Drlica-Wagner, A E Evrard, D A Finley, B Flaugher, P Fosalba, J García-Bellido, D W Gerdes, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, D L Hollowood, K Honscheid, D Huterer, D J James, T Jeltema, E Krause, N Kuropatkin, T S Li, M Lima, N MacCrann, M A G Maia, J L Marshall, P Melchior, R Miquel, R L C Ogando, A Palmese, F Paz-Chinchón, A A Plazas, A K Romer, A Roodman, M Sako, E Sanchez, B Santiago, V Scarpine, M Schubnell, D Scolnic, S Serrano, I Sevilla-Noarbe, M Smith, M Soares-Santos, E Suchyta, G Tarle, D Thomas, A R Walker, and Y Zhang
Published: 2020
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25. Photometric Properties of Jupiter Trojans Detected by the Dark Energy Survey

Author: Jiaming 嘉明 Pan 潘, Hsing Wen 省文 Lin 林, David W. Gerdes, Kevin J. Napier, Jichi 骥驰 Wang 王, T. M. C. Abbott, M. Aguena, S. Allam, O. Alves, D. Bacon, P. H. Bernardinelli, G. M. Bernstein, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, P. Doel, I. Ferrero, D. Friedel, J. Frieman, J. García-Bellido, M. Gatti, R. A. Gruendl, J. Gschwend, K. Herner, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, M. March, F. Menanteau, R. Miquel, F. Paz-Chinchón, A. Pieres, A. A. Plazas Malagón, M. Raveri, M. Rodriguez-Monroy, A. K. Romer, E. Sanchez, M. Schubnell, I. Sevilla-Noarbe, M. Smith, E. Suchyta, G. Tarle, D. Tucker, A. R. Walker, and N. Weaverdyck
Published: 2022
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26. Mass variance from archival X-ray properties of Dark Energy Survey Year-1 galaxy clusters

Author: A Farahi, X Chen, A E Evrard, D L Hollowood, R Wilkinson, S Bhargava, P Giles, A K Romer, T Jeltema, M Hilton, A Bermeo, J Mayers, C Vergara Cervantes, E Rozo, E S Rykoff, C Collins, M Costanzi, S Everett, A R Liddle, R G Mann, A Mantz, P Rooney, M Sahlen, J Stott, P T P Viana, Y Zhang, J Annis, S Avila, D Brooks, E Buckley-Geer, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, L N da Costa, J De Vicente, S Desai, H T Diehl, J P Dietrich, P Doel, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, K Honscheid, D J James, E Krause, K Kuehn, N Kuropatkin, M Lima, M A G Maia, J L Marshall, P Melchior, F Menanteau, R Miquel, R L C Ogando, A A Plazas, E Sanchez, V Scarpine, M Schubnell, S Serrano, I Sevilla-Noarbe, M Smith, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, D L Tucker, V Vikram, A R Walker, and J Weller
Published: 2019
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27. Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing

Author: S Samuroff, J Blazek, M A Troxel, N MacCrann, E Krause, C D Leonard, J Prat, D Gruen, S Dodelson, T F Eifler, M Gatti, W G Hartley, B Hoyle, P Larsen, J Zuntz, T M C Abbott, S Allam, J Annis, G M Bernstein, E Bertin, S L Bridle, D Brooks, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, C E Cunha, L N da Costa, C Davis, J De Vicente, D L DePoy, S Desai, H T Diehl, J P Dietrich, P Doel, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, R A Gruendl, J Gschwend, G Gutierrez, D L Hollowood, K Honscheid, D J James, K Kuehn, N Kuropatkin, M Lima, M A G Maia, M March, J L Marshall, P Martini, P Melchior, F Menanteau, C J Miller, R Miquel, R L C Ogando, A A Plazas, E Sanchez, V Scarpine, R Schindler, M Schubnell, S Serrano, I Sevilla-Noarbe, E Sheldon, M Smith, F Sobreira, E Suchyta, G Tarle, D Thomas, and V Vikram
Published: 2019
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28. Phenotypic redshifts with self-organizing maps: A novel method to characterize redshift distributions of source galaxies for weak lensing

Author: R Buchs, C Davis, D Gruen, J DeRose, A Alarcon, G M Bernstein, C Sánchez, J Myles, A Roodman, S Allen, A Amon, A Choi, D C Masters, R Miquel, M A Troxel, R H Wechsler, T M C Abbott, J Annis, S Avila, K Bechtol, S L Bridle, D Brooks, E Buckley-Geer, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, R Cawthon, C B D’Andrea, L N da Costa, J De Vicente, S Desai, H T Diehl, P Doel, A Drlica-Wagner, T F Eifler, A E Evrard, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, K Kuehn, N Kuropatkin, M Lima, H Lin, M A G Maia, M March, J L Marshall, P Melchior, F Menanteau, R L C Ogando, A A Plazas, E S Rykoff, E Sanchez, V Scarpine, S Serrano, I Sevilla-Noarbe, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, and V Vikram
Published: 2019
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29. Dark Energy Survey Year 1 results: validation of weak lensing cluster member contamination estimates from P(z) decomposition

Author: T N Varga, J DeRose, D Gruen, T McClintock, S Seitz, E Rozo, M Costanzi, B Hoyle, N MacCrann, A A Plazas, E S Rykoff, M Simet, A von der Linden, R H Wechsler, J Annis, S Avila, E Bertin, D Brooks, E Buckley-Geer, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, C E Cunha, C B D’Andrea, L N da Costa, J De Vicente, S Desai, H T Diehl, J P Dietrich, P Doel, A E Evrard, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, T Jeltema, K Kuehn, N Kuropatkin, M Lima, M A G Maia, M March, J L Marshall, P Melchior, F Menanteau, C J Miller, R Miquel, R L C Ogando, A K Romer, E Sanchez, V Scarpine, M Schubnell, S Serrano, I Sevilla-Noarbe, M Smith, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, D L Tucker, and Y Zhang
Published: 2019
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30. Dark Energy Survey Year 1 results: the effect of intracluster light on photometric redshifts for weak gravitational lensing

Author: D Gruen, Y Zhang, A Palmese, B Yanny, V Busti, B Hoyle, P Melchior, C J Miller, E Rozo, E S Rykoff, T N Varga, F B Abdalla, S Allam, J Annis, S Avila, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, R Cawthon, M Crocce, C E Cunha, L N da Costa, C Davis, J De Vicente, S Desai, H T Diehl, J P Dietrich, A Drlica-Wagner, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, R A Gruendl, J Gschwend, D L Hollowood, K Honscheid, D J James, T Jeltema, E Krause, R Kron, K Kuehn, N Kuropatkin, O Lahav, M Lima, H Lin, M A G Maia, J L Marshall, F Menanteau, R Miquel, R L C Ogando, A A Plazas, A K Romer, V Scarpine, I Sevilla-Noarbe, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, V Vikram, and A R Walker
Published: 2019
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31. Methods for cluster cosmology and application to the SDSS in preparation for DES Year 1 release

Author: M Costanzi, E Rozo, M Simet, Y Zhang, A E Evrard, A Mantz, E S Rykoff, T Jeltema, D Gruen, S Allen, T McClintock, A K Romer, A von der Linden, A Farahi, J DeRose, T N Varga, J Weller, P Giles, D L Hollowood, S Bhargava, A Bermeo-Hernandez, X Chen, T M C Abbott, F B Abdalla, S Avila, K Bechtol, D Brooks, E Buckley-Geer, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, M Crocce, C E Cunha, L N da Costa, C Davis, J De Vicente, H T Diehl, J P Dietrich, P Doel, T F Eifler, J Estrada, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, T Giannantonio, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, K Honscheid, B Hoyle, D J James, E Krause, K Kuehn, N Kuropatkin, M Lima, H Lin, M A G Maia, M March, J L Marshall, P Martini, F Menanteau, C J Miller, R Miquel, J J Mohr, R L C Ogando, A A Plazas, A Roodman, E Sanchez, V Scarpine, R Schindler, M Schubnell, S Serrano, I Sevilla-Noarbe, E Sheldon, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D Thomas, and R H Wechsler
Published: 2019
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32. Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT

Author: T Shin, S Adhikari, E J Baxter, C Chang, B Jain, N Battaglia, L Bleem, S Bocquet, J DeRose, D Gruen, M Hilton, A Kravtsov, T McClintock, E Rozo, E S Rykoff, T N Varga, R H Wechsler, H Wu, Z Zhang, S Aiola, S Allam, K Bechtol, B A Benson, E Bertin, J R Bond, M Brodwin, D Brooks, E Buckley-Geer, D L Burke, J E Carlstrom, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, S K Choi, C E Cunha, T M Crawford, L N da Costa, J De Vicente, S Desai, M J Devlin, J P Dietrich, P Doel, J Dunkley, T F Eifler, A E Evrard, B Flaugher, P Fosalba, P A Gallardo, J García-Bellido, E Gaztanaga, D W Gerdes, M Gralla, R A Gruendl, J Gschwend, N Gupta, G Gutierrez, W G Hartley, J C Hill, S P Ho, D L Hollowood, K Honscheid, B Hoyle, K Huffenberger, J P Hughes, D J James, T Jeltema, A G Kim, E Krause, K Kuehn, O Lahav, M Lima, M S Madhavacheril, M A G Maia, J L Marshall, L Maurin, J McMahon, F Menanteau, C J Miller, R Miquel, J J Mohr, S Naess, F Nati, L Newburgh, M D Niemack, R L C Ogando, L A Page, B Partridge, S Patil, A A Plazas, D Rapetti, C L Reichardt, A K Romer, E Sanchez, V Scarpine, R Schindler, S Serrano, M Smith, R C Smith, M Soares-Santos, F Sobreira, S T Staggs, A Stark, G Stein, E Suchyta, M E C Swanson, G Tarle, D Thomas, A van Engelen, E J Wollack, and Z Xu
Published: 2019
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33. First cosmological results using Type Ia supernovae from the Dark Energy Survey: measurement of the Hubble constant

Author: E Macaulay, R C Nichol, D Bacon, D Brout, T M Davis, B Zhang, B A Bassett, D Scolnic, A Möller, C B D’Andrea, S R Hinton, R Kessler, A G Kim, J Lasker, C Lidman, M Sako, M Smith, M Sullivan, T M C Abbott, S Allam, J Annis, J Asorey, S Avila, K Bechtol, D Brooks, P Brown, D L Burke, J Calcino, A Carnero Rosell, D Carollo, M Carrasco Kind, J Carretero, F J Castander, T Collett, M Crocce, C E Cunha, L N da Costa, C Davis, J De Vicente, H T Diehl, P Doel, A Drlica-Wagner, T F Eifler, J Estrada, A E Evrard, A V Filippenko, D A Finley, B Flaugher, R J Foley, P Fosalba, J Frieman, L Galbany, J García-Bellido, E Gaztanaga, K Glazebrook, S González-Gaitán, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, J K Hoormann, B Hoyle, D Huterer, B Jain, D J James, T Jeltema, E Kasai, E Krause, K Kuehn, N Kuropatkin, O Lahav, G F Lewis, T S Li, M Lima, H Lin, M A G Maia, J L Marshall, P Martini, R Miquel, P Nugent, A Palmese, Y-C Pan, A A Plazas, A K Romer, A Roodman, E Sanchez, V Scarpine, R Schindler, M Schubnell, S Serrano, I Sevilla-Noarbe, R Sharp, M Soares-Santos, F Sobreira, N E Sommer, E Suchyta, E Swann, M E C Swanson, G Tarle, D Thomas, R C Thomas, B E Tucker, S A Uddin, V Vikram, A R Walker, and P Wiseman
Published: 2019
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34. First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

Author: J Lasker, R Kessler, D Scolnic, D Brout, D L Burke, C B D’Andrea, T M Davis, S R Hinton, A G Kim, T S Li, C Lidman, E Macaulay, A Möller, E S Rykoff, M Sako, M Smith, M Sullivan, E Swann, B E Tucker, W Wester, B A Bassett, T M C Abbott, S Allam, J Annis, S Avila, K Bechtol, E Bertin, D Brooks, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, J Calcino, D Carollo, L N da Costa, C Davis, J De Vicente, H T Diehl, P Doel, A Drlica-Wagner, B Flaugher, J Frieman, J García-Bellido, E Gaztanaga, D Gruen, R A Gruendl, J Gschwend, G Gutierrez, D L Hollowood, K Honscheid, J K Hoormann, D J James, S Kent, E Krause, R Kron, K Kuehn, N Kuropatkin, M Lima, M A G Maia, J L Marshall, P Martini, F Menanteau, C J Miller, R Miquel, A A Plazas, E Sanchez, V Scarpine, I Sevilla-Noarbe, R C Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D L Tucker, and A R Walker
Published: 2019
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35. First cosmology results using Type Ia supernova from the Dark Energy Survey: simulations to correct supernova distance biases

Author: R Kessler, D Brout, C B D’Andrea, T M Davis, S R Hinton, A G Kim, J Lasker, C Lidman, E Macaulay, A Möller, M Sako, D Scolnic, M Smith, M Sullivan, B Zhang, P Andersen, J Asorey, A Avelino, J Calcino, D Carollo, P Challis, M Childress, A Clocchiatti, S Crawford, A V Filippenko, R J Foley, K Glazebrook, J K Hoormann, E Kasai, R P Kirshner, G F Lewis, K S Mandel, M March, E Morganson, D Muthukrishna, P Nugent, Y-C Pan, N E Sommer, E Swann, R C Thomas, B E Tucker, S A Uddin, T M C Abbott, S Allam, J Annis, S Avila, M Banerji, K Bechtol, E Bertin, D Brooks, E Buckley-Geer, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, M Crocce, L N da Costa, C Davis, J De Vicente, S Desai, H T Diehl, P Doel, T F Eifler, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, D Gruen, R A Gruendl, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, M W G Johnson, M D Johnson, E Krause, K Kuehn, N Kuropatkin, O Lahav, T S Li, M Lima, J L Marshall, P Martini, F Menanteau, C J Miller, R Miquel, B Nord, A A Plazas, A Roodman, E Sanchez, V Scarpine, R Schindler, M Schubnell, S Serrano, I Sevilla-Noarbe, M Soares-Santos, F Sobreira, E Suchyta, G Tarle, D Thomas, A R Walker, and Y Zhang
Published: 2019
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36. Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. I. Evidence for Thermal Energy Anisotropy Using Oriented Stacking

Author: M. Lokken, R. Hložek, A. van Engelen, M. Madhavacheril, E. Baxter, J. DeRose, C. Doux, S. Pandey, E. S. Rykoff, G. Stein, C. To, T. M. C. Abbott, S. Adhikari, M. Aguena, S. Allam, F. Andrade-Oliveira, J. Annis, N. Battaglia, G. M. Bernstein, E. Bertin, J. R. Bond, D. Brooks, E. Calabrese, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, R. Cawthon, A. Choi, M. Costanzi, M. Crocce, L. N. da Costa, M. E. da Silva Pereira, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, J. Dunkley, S. Everett, A. E. Evrard, S. Ferraro, B. Flaugher, P. Fosalba, J. Frieman, P. A. Gallardo, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, T. Giannantonio, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, J. C. Hill, M. Hilton, A. D. Hincks, S. R. Hinton, D. L. Hollowood, K. Honscheid, B. Hoyle, Z. Huang, J. P. Hughes, D. Huterer, B. Jain, D. J. James, T. Jeltema, K. Kuehn, M. Lima, M. A. G. Maia, J. L. Marshall, J. McMahon, P. Melchior, F. Menanteau, R. Miquel, J. J. Mohr, K. Moodley, R. Morgan, F. Nati, L. Page, R. L. C. Ogando, A. Palmese, F. Paz-Chinchón, A. A. Plazas Malagón, A. Pieres, A. K. Romer, E. Rozo, E. Sanchez, V. Scarpine, A. Schillaci, M. Schubnell, S. Serrano, I. Sevilla-Noarbe, E. Sheldon, T. Shin, C. Sifón, M. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, D. L. Tucker, T. N. Varga, J. Weller, R. H. Wechsler, R. D. Wilkinson, E. J. Wollack, and Z. Xu
Published: 2022
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37. Milky Way Satellite Census. IV. Constraints on Decaying Dark Matter from Observations of Milky Way Satellite Galaxies

Author: S. Mau, E. O. Nadler, R. H. Wechsler, A. Drlica-Wagner, K. Bechtol, G. Green, D. Huterer, T. S. Li, Y.-Y. Mao, C. E. Martínez-Vázquez, M. McNanna, B. Mutlu-Pakdil, A. B. Pace, A. Peter, A. H. Riley, L. Strigari, M.-Y. Wang, M. Aguena, S. Allam, J. Annis, D. Bacon, E. Bertin, S. Bocquet, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, M. Crocce, M. E. S. Pereira, T. M. Davis, J. De Vicente, S. Desai, P. Doel, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, M. A. G. Maia, J. L. Marshall, R. Miquel, J. J. Mohr, R. Morgan, R. L. C. Ogando, F. Paz-Chinchón, A. Pieres, M. Rodriguez-Monroy, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, E. Suchyta, G. Tarle, C. To, D. L. Tucker, and J. Weller
Published: 2022
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38. Is every strong lens model unhappy in its own way? Uniform modelling of a sample of 13 quadruply+ imaged quasars

Author: A J Shajib, S Birrer, T Treu, M W Auger, A Agnello, T Anguita, E J Buckley-Geer, J H H Chan, T E Collett, F Courbin, C D Fassnacht, J Frieman, I Kayo, C Lemon, H Lin, P J Marshall, R McMahon, A More, N D Morgan, V Motta, M Oguri, F Ostrovski, C E Rusu, P L Schechter, T Shanks, S H Suyu, G Meylan, T M C Abbott, S Allam, J Annis, S Avila, E Bertin, D Brooks, A Carnero Rosell, M Carrasco Kind, J Carretero, C E Cunha, L N da Costa, J De Vicente, S Desai, P Doel, B Flaugher, P Fosalba, J García-Bellido, D W Gerdes, D Gruen, R A Gruendl, G Gutierrez, W G Hartley, D L Hollowood, B Hoyle, D J James, K Kuehn, N Kuropatkin, O Lahav, M Lima, M A G Maia, M March, J L Marshall, P Melchior, F Menanteau, R Miquel, A A Plazas, E Sanchez, V Scarpine, I Sevilla-Noarbe, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, G Tarle, and A R Walker
Published: 2018
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39. Using host galaxy spectroscopy to explore systematics in the standardization of Type Ia supernovae

Author: M Dixon, C Lidman, J Mould, L Kelsey, D Brout, A Möller, P Wiseman, M Sullivan, L Galbany, T M Davis, M Vincenzi, D Scolnic, G F Lewis, M Smith, R Kessler, A Duffy, E N Taylor, C Flynn, T M C Abbott, M Aguena, S Allam, F Andrade-Oliveira, J Annis, J Asorey, E Bertin, S Bocquet, D Brooks, D L Burke, A Carnero Rosell, D Carollo, M Carrasco Kind, J Carretero, M Costanzi, L N da Costa, M E S Pereira, P Doel, S Everett, I Ferrero, B Flaugher, D Friedel, J Frieman, J García-Bellido, M Gatti, D W Gerdes, K Glazebrook, D Gruen, J Gschwend, G Gutierrez, S R Hinton, D L Hollowood, K Honscheid, D Huterer, D J James, K Kuehn, N Kuropatkin, U Malik, M March, F Menanteau, R Miquel, R Morgan, B Nichol, R L C Ogando, A Palmese, F Paz-Chinchón, A Pieres, A A Plazas Malagón, M Rodriguez-Monroy, A K Romer, E Sanchez, V Scarpine, I Sevilla-Noarbe, M Soares-Santos, E Suchyta, G Tarle, C To, B E Tucker, D L Tucker, T N Varga, Dixon, M., Lidman, C., Mould, J., Kelsey, L., Brout, D., Möller, A., Wiseman, P., Sullivan, M., Galbany, L., Davis, T. M., Vincenzi, M., Scolnic, D., Lewis, G. F., Smith, M., Kessler, R., Duffy, A., Taylor, E. N., Flynn, C., Abbott, T. M. C., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Asorey, J., Bertin, E., Bocquet, S., Brooks, D., Burke, D. L., Carnero Rosell, A., Carollo, D., Carrasco Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. E. S., Doel, P., Everett, S., Ferrero, I., Flaugher, B., Friedel, D., Frieman, J., García-Bellido, J., Gatti, M., Gerdes, D. W., Glazebrook, K., Gruen, D., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kuehn, K., Kuropatkin, N., Malik, U., March, M., Menanteau, F., Miquel, R., Morgan, R., Nichol, B., Ogando, R. L. C., Palmese, A., Paz-Chinchón, F., Pieres, A., Plazas Malagón, A. A., Rodriguez-Monroy, M., Romer, A. K., Sanchez, E., Scarpine, V., Sevilla-Noarbe, I., Soares-Santos, M., Suchyta, E., Tarle, G., To, C., Tucker, B. E., Tucker, D. L., Varga, T. N., Australian Research Council, Department of Energy (US), National Science Foundation (US), Ministerio de Ciencia, Innovación y Universidades (España), Science and Technology Facilities Council (UK), Agencia Estatal de Investigación (España), Generalitat de Catalunya, European Commission, and European Research Council
Subjects: Galaxies: general, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cosmology: observations, cosmology observations, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, surveys, galaxies general, Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Solar and Stellar Astrophysics, survey, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: M. Dixon et al., We use stacked spectra of the host galaxies of photometrically identified Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) to search for correlations between Hubble diagram residuals and the spectral properties of the host galaxies. Utilizing full spectrum fitting techniques on stacked spectra binned by Hubble residual, we find no evidence for trends between Hubble residuals and properties of the host galaxies that rely on spectral absorption features (, MD would like to acknowledge support through an Australian Government Research Training Program Scholarship. This research was supported by the Australian Research Council The Centre of Excellence for Dark Matter Particle Physics (CDM; project number CE200100008) and the Australian Research Council Centre of Excellence for Gravitational Wave Discovery (OzGrav; project number CE170100004). This project/publication was made possible through the support of a grant from the John Templeton Foundation. The authors gratefully acknowledge this grant ID 61807, Two Standard Models Meet. The opinions expressed in this publication are those of the author(s) and do not necessarily reflect the views of the John Templeton Foundation. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgenössische Technische Hochschule (ETH) Zürich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ciències de l’Espai (IEEC/CSIC), the Institut de Física d’Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universität München and the associated Excellence Cluster Universe, the University of Michigan, NSF’s NOIRLab, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, Texas A&M University, and the OzDES Membership Consortium. Based in part on observations at Cerro Tololo Inter-American Observatory at NSF’s NOIRLab (NOIRLab Prop. ID 2012B-0001; PI: J. Frieman), which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. The DES data management system is supported by the National Science Foundation under Grant Numbers AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2). This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. Based on data acquired at the Anglo-Australian Telescope, under program A/2013B/012. We acknowledge the traditional custodians of the land on which the AAT stands, the Gamilaraay people, and pay our respects to elders past and present.
Published: 2022

40. Dark Energy Survey Year 1 results: weak lensing mass calibration of redMaPPer galaxy clusters

Author: T McClintock, T N Varga, D Gruen, E Rozo, E S Rykoff, T Shin, P Melchior, J DeRose, S Seitz, J P Dietrich, E Sheldon, Y Zhang, A von der Linden, T Jeltema, A B Mantz, A K Romer, S Allen, M R Becker, A Bermeo, S Bhargava, M Costanzi, S Everett, A Farahi, N Hamaus, W G Hartley, D L Hollowood, B Hoyle, H Israel, P Li, N MacCrann, G Morris, A Palmese, A A Plazas, G Pollina, M M Rau, M Simet, M Soares-Santos, M A Troxel, C Vergara Cervantes, R H Wechsler, J Zuntz, T M C Abbott, F B Abdalla, S Allam, J Annis, S Avila, S L Bridle, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, F J Castander, M Crocce, C E Cunha, C B D’Andrea, L N da Costa, C Davis, J De Vicente, H T Diehl, P Doel, A Drlica-Wagner, A E Evrard, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, T Giannantonio, R A Gruendl, G Gutierrez, K Honscheid, D J James, D Kirk, E Krause, K Kuehn, O Lahav, T S Li, M Lima, M March, J L Marshall, F Menanteau, R Miquel, J J Mohr, B Nord, R L C Ogando, A Roodman, E Sanchez, V Scarpine, R Schindler, I Sevilla-Noarbe, M Smith, R C Smith, F Sobreira, E Suchyta, M E C Swanson, G Tarle, D L Tucker, V Vikram, A R Walker, and J Weller
Published: 2018
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41. Survey geometry and the internal consistency of recent cosmic shear measurements

Author: M A Troxel, E Krause, C Chang, T F Eifler, O Friedrich, D Gruen, N MacCrann, A Chen, C Davis, J DeRose, S Dodelson, M Gatti, B Hoyle, D Huterer, M Jarvis, F Lacasa, P Lemos, H V Peiris, J Prat, S Samuroff, C Sánchez, E Sheldon, P Vielzeuf, M Wang, J Zuntz, O Lahav, F B Abdalla, S Allam, J Annis, S Avila, E Bertin, D Brooks, D L Burke, A Carnero Rosell, M Carrasco Kind, J Carretero, M Crocce, C E Cunha, C B D’Andrea, L N da Costa, J De Vicente, H T Diehl, P Doel, A E Evrard, B Flaugher, P Fosalba, J Frieman, J García-Bellido, E Gaztanaga, D W Gerdes, R A Gruendl, J Gschwend, G Gutierrez, W G Hartley, D L Hollowood, K Honscheid, D J James, D Kirk, K Kuehn, N Kuropatkin, T S Li, M Lima, M March, F Menanteau, R Miquel, J J Mohr, R L C Ogando, A A Plazas, A Roodman, E Sanchez, V Scarpine, R Schindler, I Sevilla-Noarbe, M Smith, M Soares-Santos, F Sobreira, E Suchyta, M E C Swanson, D Thomas, A R Walker, and R H Wechsler
Published: 2018
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42. Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000

Author: A Amon, N C Robertson, H Miyatake, C Heymans, M White, J DeRose, S Yuan, R H Wechsler, T N Varga, S Bocquet, A Dvornik, S More, A J Ross, H Hoekstra, A Alarcon, M Asgari, J Blazek, A Campos, R Chen, A Choi, M Crocce, H T Diehl, C Doux, K Eckert, J Elvin-Poole, S Everett, A Ferté, M Gatti, G Giannini, D Gruen, R A Gruendl, W G Hartley, K Herner, H Hildebrandt, S Huang, E M Huff, B Joachimi, S Lee, N MacCrann, J Myles, A Navarro-Alsina, T Nishimichi, J Prat, L F Secco, I Sevilla-Noarbe, E Sheldon, T Shin, T Tröster, M A Troxel, I Tutusaus, A H Wright, B Yin, M Aguena, S Allam, J Annis, D Bacon, M Bilicki, D Brooks, D L Burke, A Carnero Rosell, J Carretero, F J Castander, R Cawthon, M Costanzi, L N da Costa, M E S Pereira, J de Jong, J De Vicente, S Desai, J P Dietrich, P Doel, I Ferrero, J Frieman, J García-Bellido, D W Gerdes, J Gschwend, G Gutierrez, S R Hinton, D L Hollowood, K Honscheid, D Huterer, A Kannawadi, K Kuehn, N Kuropatkin, O Lahav, M Lima, M A G Maia, J L Marshall, F Menanteau, R Miquel, J J Mohr, R Morgan, J Muir, F Paz-Chinchón, A Pieres, A A Plazas Malagón, A Porredon, M Rodriguez-Monroy, A Roodman, E Sanchez, S Serrano, H Shan, E Suchyta, M E C Swanson, G Tarle, D Thomas, C To, Y Zhang, Amon, A., Robertson, N. C., Miyatake, H., Heymans, C., White, M., Derose, J., Yuan, S., Wechsler, R. H., Varga, T. N., Bocquet, S., Dvornik, A., More, S., Ross, A. J., Hoekstra, H., Alarcon, A., Asgari, M., Blazek, J., Campos, A., Chen, R., Choi, A., Crocce, M., Diehl, H. T., Doux, C., Eckert, K., Elvin-Poole, J., Everett, S., Ferté, A., Gatti, M., Giannini, G., Gruen, D., Gruendl, R. A., Hartley, W. G., Herner, K., Hildebrandt, H., Huang, S., Huff, E. M., Joachimi, B., Lee, S., Maccrann, N., Myles, J., Navarro-Alsina, A., Nishimichi, T., Prat, J., Secco, L. F., Sevilla-Noarbe, I., Sheldon, E., Shin, T., Tröster, T., Troxel, M. A., Tutusaus, I., Wright, A. H., Yin, B., Aguena, M., Allam, S., Annis, J., Bacon, D., Bilicki, M., Brooks, D., Burke, D. L., Carnero Rosell, A., Carretero, J., Castander, F. J., Cawthon, R., Costanzi, M., da Costa, L. N., Pereira, M. E. S., de Jong, J., De Vicente, J., Desai, S., Dietrich, J. P., Doel, P., Ferrero, I., Frieman, J., García-Bellido, J., Gerdes, D. W., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., Kannawadi, A., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., Maia, M. A. G., Marshall, J. L., Menanteau, F., Miquel, R., Mohr, J. J., Morgan, R., Muir, J., Paz-Chinchón, F., Pieres, A., Plazas Malagón, A. A., Porredon, A., Rodriguez-Monroy, M., Roodman, A., Sanchez, E., Serrano, S., Shan, H., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., To, C., and Zhang, Y.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), cosmology observations, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, gravitational lensing weak, large-scale structure of Universe, Cosmology and Nongalactic Astrophysics, Astrophysic, Space and Planetary Science, cosmology observation, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We evaluate the consistency between lensing and clustering probes of large-scale structure based on measurements of projected galaxy clustering from BOSS combined with overlapping galaxy-galaxy lensing from three surveys: DES Y3, HSC Y1, and KiDS-1000. An intra-lensing-survey study finds good agreement between these lensing data. We model the observations using the Dark Emulator and fit the data at two fixed cosmologies: Planck, with $S_8=0.83$, and a Lensing cosmology with $S_8=0.76$. For a joint analysis limited to scales with $R>5.25h^{-1}$Mpc, we find that both cosmologies provide an acceptable fit to the data. Full utilisation of the small-scale clustering and lensing measurements is hindered by uncertainty in the impact of baryon feedback and assembly bias, which we account for with a reasoned theoretical error budget. We incorporate a systematic scaling parameter for each redshift bin, $A$, that decouples the lensing and clustering to capture any inconsistency. When a wide range of scales ($0.15, Comment: 28 pages, 11 figures
Published: 2023

43. No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects

Author: K. J. Napier, D. W. Gerdes, Hsing Wen 省文 Lin 林, S. J. Hamilton, G. M. Bernstein, P. H. Bernardinelli, T. M. C. Abbott, M. Aguena, J. Annis, S. Avila, D. Bacon, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, J. De Vicente, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, P. Fosalba, J. García-Bellido, D. Gruen, R. A. Gruendl, G. Gutierrez, D. L. Hollowood, K. Honscheid, B. Hoyle, D. J. James, S. Kent, K. Kuehn, N. Kuropatkin, M. A. G. Maia, F. Menanteau, R. Miquel, R. Morgan, A. Palmese, F. Paz-Chinchón, A. A. Plazas, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, C. To, A. R. Walker, and R. D. Wilkinson
Published: 2021
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44. Lessons learned from the two largest Galaxy morphological classification catalogues built by convolutional neural networks

Author: T-Y Cheng, H Domínguez Sánchez, J Vega-Ferrero, C J Conselice, M Siudek, A Aragón-Salamanca, M Bernardi, R Cooke, L Ferreira, M Huertas-Company, J Krywult, A Palmese, A Pieres, A A Plazas Malagón, A Carnero Rosell, D Gruen, D Thomas, D Bacon, D Brooks, D J James, D L Hollowood, D Friedel, E Suchyta, E Sanchez, F Menanteau, F Paz-Chinchón, G Gutierrez, G Tarle, I Sevilla-Noarbe, I Ferrero, J Annis, J Frieman, J García-Bellido, J Mena-Fernández, K Honscheid, K Kuehn, L N da Costa, M Gatti, M Raveri, M E S Pereira, M Rodriguez-Monroy, M Smith, M Carrasco Kind, M Aguena, M E C Swanson, N Weaverdyck, P Doel, R Miquel, R L C Ogando, R A Gruendl, S Allam, S R Hinton, S Dodelson, S Bocquet, S Desai, S Everett, V Scarpine, and UAM. Departamento de Física Teórica
Subjects: Methods: Statistical, Methods: Data Analysis, Galaxies: Structure, Space and Planetary Science, Physics - Data Analysis, Statistics and Probability, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Física, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Data Analysis, Statistics and Probability (physics.data-an)
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere, This is an electronic version of an article published in Monthly Notices of the Royal Astronomical Society. T. Y. Cheng, H. Domínguez Sánchez, J. Vega-Ferrero, C. J. Conselice, M. Siudek, A. Aragón-Salamanca, M. Bernardi, R. Cooke, L. Ferreira, M. Huertas-Company , J. Krywult, A. Palmese , A. Pieres , A. A. Plazas Malagón, A. Carnero Rosell , D. Gruen, D. Thomas , D. Bacon, D. Brooks, D. J. James, D. L. Hollowood, D. Friedel, E. Suchyta, E. Sánchez, F. Menanteau, F. Paz-Chinchón, G. Gutiérrez, G. Tarle, I. Sevilla-Noarbe, I. Ferrero, J. Annis, J. Frieman, J. García-Bellido, J. Mena-Fernández, K. Honscheid, K. Kuehn, L. N. da Costa, M. Gatti, M. Raveri, M. E. S. Pereira, M. Rodríguez-Monroy, M. Smith, M. Carrasco Kind, M. Aguena, M. E. C. Swanson, N. Weaverdyck, P. Doel, R. Miquel, R. L. C. Ogando, R. A. Gruendl, S. Allam, S. R. Hinton, S. Dodelson, S. Bocquet, S. Desai, S. Everett and V. Scarpine in “Lessons learned from the two largest Galaxy morphological classification catalogues built by convolutional neural networks”. Monthly Notices of the Royal Astronomical Society 518.2 (2023): 2794-2809, We compare the two largest galaxy morphology catalogues, which separate early- and late-type galaxies at intermediate redshift. The two catalogues were built by applying supervised deep learning (convolutional neural networks, CNNs) to the Dark Energy Survey data down to a magnitude limit of ∼21 mag. The methodologies used for the construction of the catalogues include differences such as the cutout sizes, the labels used for training, and the input to the CNN – monochromatic images versus gri-band normalized images. In addition, one catalogue is trained using bright galaxies observed with DES (i < 18), while the other is trained with bright galaxies (r < 17.5) and ‘emulated’ galaxies up to r-band magnitude 22.5. Despite the different approaches, the agreement between the two catalogues is excellent up to i < 19, demonstrating that CNN predictions are reliable for samples at least one magnitude fainter than the training sample limit. It also shows that morphological classifications based on monochromatic images are comparable to those based on gri-band images, at least in the bright regime. At fainter magnitudes, i > 19, the overall agreement is good (∼95 per cent), but is mostly driven by the large spiral fraction in the two catalogues. In contrast, the agreement within the elliptical population is not as good, especially at faint magnitudes. By studying the mismatched cases, we are able to identify lenticular galaxies (at least up to i < 19), which are difficult to distinguish using standard classification approaches. The synergy of both catalogues provides an unique opportunity to select a population of unusual galaxies
Published: 2022

45. Constraints on the Physical Properties of GW190814 through Simulations Based on DECam Follow-up Observations by the Dark Energy Survey

Author: R. Morgan, M. Soares-Santos, J. Annis, K. Herner, A. Garcia, A. Palmese, A. Drlica-Wagner, R. Kessler, J. García-Bellido, T. G. Bachmann, N. Sherman, S. Allam, K. Bechtol, C. R. Bom, D. Brout, R. E. Butler, M. Butner, R. Cartier, H. Chen, C. Conselice, E. Cook, T. M. Davis, Z. Doctor, B. Farr, A. L. Figueiredo, D. A. Finley, R. J. Foley, J. Y. Galarza, M. S. S. Gill, R. A. Gruendl, D. E. Holz, N. Kuropatkin, C. Lidman, H. Lin, U. Malik, A. W. Mann, J. Marriner, J. L. Marshall, C. E. Martínez-Vázquez, N. Meza, E. Neilsen, C. Nicolaou, F. Olivares E, F. Paz-Chinchón, S. Points, J. Quirola-Vásquez, O. Rodriguez, M. Sako, D. Scolnic, M. Smith, F. Sobreira, D. L. Tucker, A. K. Vivas, M. Wiesner, M. L. Wood, B. Yanny, A. Zenteno, T. M. C. Abbott, M. Aguena, S. Avila, E. Bertin, S. Bhargava, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, L. N. da Costa, M. Costanzi, J. De Vicente, S. Desai, H. T. Diehl, P. Doel, T. F. Eifler, S. Everett, B. Flaugher, J. Frieman, E. Gaztanaga, D. W. Gerdes, D. Gruen, J. Gschwend, G. Gutierrez, W. G. Hartley, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, M. Lima, M. A. G. Maia, M. March, R. Miquel, R. L. C. Ogando, A. A. Plazas, A. Roodman, E. Sanchez, V. Scarpine, M. Schubnell, S. Serrano, I. Sevilla-Noarbe, E. Suchyta, and G. Tarle
Published: 2020
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46. Birds of a Feather? Magellan/IMACS Spectroscopy of the Ultra-faint Satellites Grus II, Tucana IV, and Tucana V*

Author: J. D. Simon, T. S. Li, D. Erkal, A. B. Pace, A. Drlica-Wagner, D. J. James, J. L. Marshall, K. Bechtol, T. Hansen, K. Kuehn, C. Lidman, S. Allam, J. Annis, S. Avila, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, L. N. da Costa, J. De Vicente, S. Desai, P. Doel, T. F. Eifler, S. Everett, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, E. Krause, N. Kuropatkin, N. MacCrann, M. A. G. Maia, M. March, R. Miquel, A. Palmese, F. Paz-Chinchón, A. A. Plazas, K. Reil, A. Roodman, E. Sanchez, B. Santiago, V. Scarpine, M. Schubnell, S. Serrano, M. Smith, E. Suchyta, G. Tarle, and A. R. Walker
Published: 2020
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47. Trans-Neptunian Objects Found in the First Four Years of the Dark Energy Survey

Author: Pedro H. Bernardinelli, Gary M. Bernstein, Masao Sako, Tongtian Liu, William R. Saunders, Tali Khain, Hsing Wen Lin, David W. Gerdes, Dillon Brout, Fred C. Adams, Matthew Belyakov, Aditya Inada Somasundaram, Lakshay Sharma, Jennifer Locke, Kyle Franson, Juliette C. Becker, Kevin Napier, Larissa Markwardt, James Annis, T. M. C. Abbott, S. Avila, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, F. J. Castander, L. N. da Costa, J. De Vicente, S. Desai, H. T. Diehl, P. Doel, S. Everett, B. Flaugher, J. García-Bellido, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, D. J. James, M. W. G. Johnson, M. D. Johnson, E. Krause, N. Kuropatkin, M. A. G. Maia, M. March, R. Miquel, F. Paz-Chinchón, A. A. Plazas, A. K. Romer, E. S. Rykoff, C. Sánchez, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, M. Smith, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, A. R. Walker, W. Wester, and Y. Zhang
Published: 2020
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48. The SPTpol Extended Cluster Survey

Author: L. E. Bleem, S. Bocquet, B. Stalder, M. D. Gladders, P. A. R. Ade, S. W. Allen, A. J. Anderson, J. Annis, M. L. N. Ashby, J. E. Austermann, S. Avila, J. S. Avva, M. Bayliss, J. A. Beall, K. Bechtol, A. N. Bender, B. A. Benson, E. Bertin, F. Bianchini, C. Blake, M. Brodwin, D. Brooks, E. Buckley-Geer, D. L. Burke, J. E. Carlstrom, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, C. L. Chang, H. C. Chiang, R. Citron, C. Corbett Moran, M. Costanzi, T. M. Crawford, A. T. Crites, L. N. da Costa, T. de Haan, J. De Vicente, S. Desai, H. T. Diehl, J. P. Dietrich, M. A. Dobbs, T. F. Eifler, W. Everett, B. Flaugher, B. Floyd, J. Frieman, J. Gallicchio, J. García-Bellido, E. M. George, D. W. Gerdes, A. Gilbert, D. Gruen, R. A. Gruendl, J. Gschwend, N. Gupta, G. Gutierrez, N. W. Halverson, N. Harrington, J. W. Henning, C. Heymans, G. P. Holder, D. L. Hollowood, W. L. Holzapfel, K. Honscheid, J. D. Hrubes, N. Huang, J. Hubmayr, K. D. Irwin, D. J. James, T. Jeltema, S. Joudaki, G. Khullar, M. Klein, L. Knox, N. Kuropatkin, A. T. Lee, D. Li, C. Lidman, A. Lowitz, N. MacCrann, G. Mahler, M. A. G. Maia, J. L. Marshall, M. McDonald, J. J. McMahon, P. Melchior, F. Menanteau, S. S. Meyer, R. Miquel, L. M. Mocanu, J. J. Mohr, J. Montgomery, A. Nadolski, T. Natoli, J. P. Nibarger, G. Noble, V. Novosad, S. Padin, A. Palmese, D. Parkinson, S. Patil, F. Paz-Chinchón, A. A. Plazas, C. Pryke, N. S. Ramachandra, C. L. Reichardt, J. D. Remolina González, A. K. Romer, A. Roodman, J. E. Ruhl, E. S. Rykoff, B. R. Saliwanchik, E. Sanchez, A. Saro, J. T. Sayre, K. K. Schaffer, T. Schrabback, S. Serrano, K. Sharon, C. Sievers, G. Smecher, M. Smith, M. Soares-Santos, A. A. Stark, K. T. Story, E. Suchyta, G. Tarle, C. Tucker, K. Vanderlinde, T. Veach, J. D. Vieira, G. Wang, J. Weller, N. Whitehorn, W. L. K. Wu, V. Yefremenko, and Y. Zhang
Published: 2020
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49. Dark energy survey year 3 results: weak lensing shape catalogue

Author: Peter Doel, Alexandra Amon, Joe Zuntz, Jack Elvin-Poole, M. Smith, Daniel Gruen, V. Scarpine, J. Carretero, Tamara M. Davis, H. T. Diehl, David Bacon, Niall MacCrann, I. Tutusaus, Tesla E. Jeltema, A. Navarro-Alsina, J. De Vicente, D. W. Gerdes, J. Gschwend, Daniel Thomas, Gary Bernstein, Marcos Lima, E. M. Huff, M. Gatti, W. C. Wester, Josh Frieman, R. Chen, Michel Aguena, Samuel Hinton, G. Gutierrez, David J. Brooks, R. P. Rollins, Matthew R. Becker, J. Prat, Ami Choi, Ben Hoyle, S. Samuroff, F. Paz-Chinchón, Santiago Avila, Chihway Chang, Antonella Palmese, M. A. G. Maia, E. Bertin, M. E. C. Swanson, S. Serrano, S. Pandey, S. Desai, Michael Schubnell, J. McCullough, M. Costanzi, D. L. Burke, J. P. Dietrich, Juan Garcia-Bellido, E. Suchyta, W. G. Hartley, Carlos Solans Sanchez, Christopher J. Conselice, S. Allam, Robert A. Gruendl, Ramon Miquel, Eli S. Rykoff, Jochen Weller, F. J. Castander, Richard G. Kron, T. Shin, D. L. Hollowood, T. M. C. Abbott, Elisabeth Krause, C. Doux, Chun-Hao To, E. J. Sanchez, A. A. Plazas, I. Ferrero, Matt J. Jarvis, K. Honscheid, S. Everett, L. F. Secco, M. Carrasco Kind, Martin Crocce, R. D. Wilkinson, Sunayana Bhargava, Risa H. Wechsler, J. Myles, David J. James, Jennifer L. Marshall, Agnès Ferté, Michael Troxel, I. Sevilla-Noarbe, M. Soares-Santos, N. Kuropatkin, Alex Drlica-Wagner, K. D. Eckert, T. N. Varga, Dragan Huterer, L. N. da Costa, Bhuvnesh Jain, J. Annis, Douglas L. Tucker, Erin Sheldon, Robert Morgan, G. Tarle, Ian Harrison, A. Roodman, Tommaso Giannantonio, A. Carnero Rosell, Gatti, M., Sheldon, E., Amon, A., Becker, M., Troxel, M., Choi, A., Doux, C., Maccrann, N., Navarro Alsina, A., Harrison, I., Gruen, D., Bernstein, G., Jarvis, M., Secco, L. F., Ferté, A., Shin, T., Mccullough, J., Rollins, R. P., Chen, R., Chang, C., Pandey, S., Tutusaus, I., Prat, J., Elvin-Poole, J., Sanchez, C., Plazas, A. A., Roodman, A., Zuntz, J., Abbott, T. M. C., Aguena, M., Allam, S., Annis, J., Avila, S., Bacon, D., Bertin, E., Bhargava, S., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Conselice, C., Costanzi, M., da Costa, L. N., Davis, T. M., De Vicente, J., Desai, S., Diehl, H. T., Dietrich, J. P., Doel, P., Drlica-Wagner, A., Eckert, K., Everett, S., Ferrero, I., Frieman, J., García-Bellido, J., Gerdes, D. W., Giannantonio, T., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Hoyle, B., Huff, E. M., Huterer, D., Jain, B., James, D. J., Jeltema, T., Krause, E., Kron, R., Kuropatkin, N., Lima, M., Maia, M. A. G., Marshall, J. L., Miquel, R., Morgan, R., Myles, J., Palmese, A., Paz-Chinchón, F., Rykoff, E. S., Samuroff, S., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., To, C., Tucker, D. L., Varga, T. N., Wechsler, R. H., Weller, J., Wester, W., Wilkinson, R. D., National Science Foundation (US), Ministerio de Economía y Competitividad (España), European Commission, Instituto Nacional de Ciência e Tecnologia (Brasil), UAM. Departamento de Física Teórica, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and DES
Subjects: Effective Area, Point spread function, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Techniques: image processing, FOS: Physical sciences, Astrophysics, Surveys, 01 natural sciences, surveys, weak [gravitational lensing], Gravitational lensing: weak, Methods: data analysis, 0103 physical sciences, data analysis [methods], survey, Spurious relationship, weak [ravitational lensing], 010303 astronomy & astrophysics, catalogues, Weak gravitational lensing, media_common, Physics, Energy Surveys, Number density, image processing [techniques], 010308 nuclear & particles physics, Cosmology: observations, Física, Astronomy and Astrophysics, Catalogues, Dark Energy, observations [cosmology], Galaxy, Weak Lensing, Space and Planetary Science, Sky, data analysi [methods], Dark energy, ravitational lensing: weak, Catalog, methods: data analysis, techniques: image processing, cosmology: observations, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology Observations, catalogue, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], observation [cosmology]
Abstract: Gatti, M., et al. (DES Collaboration), We present and characterize the galaxy shape catalogue from the first 3 yr of Dark Energy Survey (DES) observations, over an effective area of 4143 deg2 of the southern sky. We describe our data analysis process and our self-calibrating shear measurement pipeline metacalibration, which builds and improves upon the pipeline used in the DES Year 1 analysis in several aspects. The DES Year 3 weak-lensing shape catalogue consists of 100 204 026 galaxies, measured in the riz bands, resulting in a weighted source number density of neff = 5.59 gal arcmin-2 and corresponding shape noise σe = 0.261. We perform a battery of internal null tests on the catalogue, including tests on systematics related to the point spread function (PSF) modelling, spurious catalogue B-mode signals, catalogue contamination, and galaxy properties., Based in part on observations at Cerro Tololo Inter-American Observatory at NSF’s NOIRLab (NOIRLab Prop. ID 2012B-0001; PI: J. Frieman), which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. The DES data management system is supported by the National Science Foundation under grants AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA programme of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2).
Published: 2021

50. Cool Cores in Clusters of Galaxies in the Dark Energy Survey

Author: K. Graham, J. O’Donnell, M. M. Silverstein, O. Eiger, T. E. Jeltema, D. L. Hollowood, D. Cross, S. Everett, P. Giles, J. Jobel, D. Laubner, A. McDaniel, A. K. Romer, A. Swart, M. Aguena, S. Allam, O. Alves, D. Brooks, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, I. Ferrero, J. Frieman, J. García-Bellido, D. Gruen, R. A. Gruendl, S. R. Hinton, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, O. Lahav, J. L. Marshall, P. Melchior, J. Mena-Fernández, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas Malagón, K. Reil, M. Rodriguez-Monroy, E. Sanchez, V. Scarpine, M. Schubnell, M. Smith, E. Suchyta, G. Tarle, C. To, and N. Weaverdyck
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, General Medicine, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We search for the presence of cool cores in optically-selected galaxy clusters from the Dark Energy Survey (DES) and investigate their prevalence as a function of redshift and cluster richness. Clusters were selected from the redMaPPer analysis of three years of DES observations that have archival Chandra X-ray observations, giving a sample of 99 clusters with a redshift range of $0.11 < z < 0.87$ and a richness range of $25 < λ< 207$. Using the X-ray data, the core temperature was compared to the outer temperature to identify clusters where the core temperature is a factor of 0.7 or less than the outer temperature. We found a cool core fraction of approximately 20% with no significant trend in the cool core fraction with either redshift or richness., shortened version accepted to RNAAS
Published: 2023

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