24 documents found, page 1 of 3
Dark Energy Survey Year 3 results: Galaxy-halo connection from galaxy-galaxy le...
Zacharegkas, G.; Chang, C.; Prat, J.; Pandey, S.; Ferrero, I.; Blazek, J.; Jain, B.; Crocce, M.; Derose, J.; Palmese, A.; Seitz, S.; Sheldon, E.Made available in DSpace on 2022-04-29T08:37:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; Galaxy-galaxy lensing is a powerful probe of the connection between galaxies and their host dark matter haloes, which is important both for galaxy evolution and cosmology. We extend the measurement and modelling of the galaxy-galaxy lensing signal in the recent Dark Energy Survey Year 3 cosmology analys...
Galaxy–galaxy lensing with the DES-CMASS catalogue: measurement and constraints...
Lee, S.; Troxel, M. A.; Choi, A.; Elvin-Poole, J.; Hirata, C.; Honscheid, K.; Huff, E. M.; MacCrann, N.; Ross, A. J.; Eifler, T. F.; Chang, C.Made available in DSpace on 2022-04-29T08:37:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; The DMASS sample is a photometric sample from the DES Year 1 data set designed to replicate the properties of the CMASS sample from BOSS, in support of a joint analysis of DES and BOSS beyond the small overlapping area. In this paper, we present the measurement of galaxy–galaxy lensing using the DMASS s...
Dark Energy Survey Year 3 results: Cosmology from cosmic shear and robustness t...
Secco, L. F.; Samuroff, S.; Krause, E.; Jain, B.; Blazek, J.; Raveri, M.; Campos, A.; Amon, A.; Chen, A.; Doux, C.; Choi, A.; Gruen, D.Made available in DSpace on 2022-04-29T08:39:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-15; This work and its companion paper, Amon et al. [Phys. Rev. D 105, 023514 (2022)PRVDAQ2470-001010.1103/PhysRevD.105.023514], present cosmic shear measurements and cosmological constraints from over 100 million source galaxies in the Dark Energy Survey (DES) Year 3 data. We constrain the lensing amplitude...
Dark Energy Survey Year 3 results: Cosmology from cosmic shear and robustness t...
Amon, A.; Gruen, D.; Troxel, M. A.; Maccrann, N.; Dodelson, S.; Choi, A.; Doux, C.; Secco, L. F.; Samuroff, S.; Krause, E.; Cordero, J.; Myles, J.Made available in DSpace on 2022-04-29T08:39:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-15; This work, together with its companion paper, Secco, Samuroff et al. [Phys. Rev. D 105, 023515 (2022)PRVDAQ2470-001010.1103/PhysRevD.105.023515], present the Dark Energy Survey Year 3 cosmic-shear measurements and cosmological constraints based on an analysis of over 100 million source galaxies. With th...
Dark Energy Survey Year 3 results: Cosmological constraints from galaxy cluster...
Abbott, T. M.C.; Aguena, M.; Alarcon, A.; Allam, S.; Alves, O. [UNESP]; Amon, A.; Andrade-Oliveira, F. [UNESP]; Annis, J.; Avila, S.; Bacon, D.Made available in DSpace on 2022-04-29T08:39:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-15; We present the first cosmology results from large-scale structure using the full 5000 deg2 of imaging data from the Dark Energy Survey (DES) Data Release 1. We perform an analysis of large-scale structure combining three two-point correlation functions (3×2pt): (i) cosmic shear using 100 million source ...
The des view of the Eridanus supervoid and the CMB cold spot
Kovács, A.; Jeffrey, N.; Gatti, M.; Chang, C.; Whiteway, L.; Hamaus, N.; Lahav, O.; Pollina, G.; Bacon, D.; Kacprzak, T.; Mawdsley, B.; Nadathur, S.Made available in DSpace on 2022-04-29T08:41:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-02-01; The Cold Spot is a puzzling large-scale feature in the Cosmic Microwave Background temperature maps and its origin has been subject to active debate. As an important foreground structure at low redshift, the Eridanus supervoid was recently detected, but it was subsequently determined that, assuming the ...
Dark Energy Survey year 1 results: Cosmological constraints from galaxy cluster...
Abbott, T. M.C.; Abdalla, F. B.; Alarcon, A.; Aleksić, J.; Allam, S.; Allen, S.; Amara, A.; Annis, J.; Asorey, J.; Avila, S.; Bacon, D.; Balbinot, E.Made available in DSpace on 2022-04-29T08:27:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-08-15; We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg2 of griz imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point functions: (i) the cosmic shear correlation function of 26 million source ...
Cosmological Constraints from Multiple Probes in the Dark Energy Survey
Abbott, T. M.C.; Alarcon, A.; Allam, S.; Andersen, P.; Andrade-Oliveira, F. [UNESP]; Annis, J.; Asorey, J.; Avila, S.; Bacon, D.; Banik, N.Made available in DSpace on 2022-04-29T08:28:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-05-01; The combination of multiple observational probes has long been advocated as a powerful technique to constrain cosmological parameters, in particular dark energy. The Dark Energy Survey has measured 207 spectroscopically confirmed type Ia supernova light curves, the baryon acoustic oscillation feature, w...
Dark Energy Survey year 1 results: Constraints on extended cosmological models ...
Abbott, T. M.C.; Abdalla, F. B.; Avila, S.; Banerji, M.; Baxter, E.; Bechtol, K.; Becker, M. R.; Bertin, E.; Blazek, J.; Bridle, S. L.; Brooks, D.Made available in DSpace on 2022-04-29T08:28:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-06-07; We present constraints on extensions of the minimal cosmological models dominated by dark matter and dark energy, ΛCDM and wCDM, by using a combined analysis of galaxy clustering and weak gravitational lensing from the first-year data of the Dark Energy Survey (DES Y1) in combination with external data....
DES Y1 results: Splitting growth and geometry to test ΛcDM
Muir, J.; Baxter, E.; Miranda, V.; Doux, C.; Ferté, A.; Leonard, C. D.; Huterer, D.; Jain, B.; Lemos, P.; Raveri, M.; Nadathur, S.; Campos, A. [UNESP]Made available in DSpace on 2022-04-29T08:29:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-21; We analyze Dark Energy Survey (DES) data to constrain a cosmological model where a subset of parameters - focusing on ωm - are split into versions associated with structure growth (e.g., ωmgrow) and expansion history (e.g., ωmgeo). Once the parameters have been specified for the ΛCDM cosmological model,...