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34 research outcomes, page 1 of 4
  • publication . Article . Preprint . Other literature type . Research . 2018
    Open Access
    Authors:
    Robert C. Smith; Ramon Miquel; Ashley J. Ross; Juan García-Bellido; W. L. K. Wu; Erin S. Sheldon; Bradford Benson; Bradford Benson; Christopher P. Davis; L. N. da Costa; ...
    Project: NSF | Cosmological Research wit... (1248097), NSF | Center for Cosmological P... (0114422), NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), EC | TESTDE (291329), EC | COGS (240672)

    We combine Dark Energy Survey Year 1 clustering and weak lensing data with Baryon Acoustic Oscillations (BAO) and Big Bang Nucleosynthesis (BBN) experiments to constrain the Hubble constant. Assuming a flat $\Lambda$CDM model with minimal neutrino mass ($\sum m_\nu = 0....

  • publication . Article . Research . Other literature type . Preprint . 2019
    Open Access English
    Authors:
    Robert C. Smith; Ramon Miquel; Juan García-Bellido; Ashley J. Ross; Donnacha Kirk; A. Carnero Rosell; A. A. Plazas; Michael Schubnell; F. Sobreira; B. Flaugher; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    We use data from the first-year (Y1) observations of the DES collaboration to measure the galaxy angular power spectrum (APS), and search for its BAO feature using a template-fitting method. We test our methodology in a sample of 1800 DES Y1-like mock catalogs. The APS ...

  • publication . Article . Research . Preprint . Other literature type . 2017
    Open Access
    Authors:
    Abbott, T. M. C.; Abdalla, F. B.; Alarcon, A.; Aleksic, J.; Allam, S.; Allen, S.; Amara, A.; Annis, J.; Asorey, J.; Avila, S.; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478), EC | COGS (240672)

    Comment: Matches published version. Results essentially unchanged, except updated covariance matrix leads to improved chi^2 (colored text removed)

  • publication . Article . Research . Other literature type . Preprint . 2019
    Open Access English
    Authors:
    Martin Crocce; N. MacCrann; Ofer Lahav; S. Desai; L. N. da Costa; G. Tarle; Daniel Gruen; Daniel Gruen; G. Pollina; A. Roodman; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), EC | TESTDE (291329), EC | COGS (240672)

    What are the mass and galaxy profiles of cosmic voids? In this paper we use two methods to extract voids in the Dark Energy Survey (DES) Year 1 redMaGiC galaxy sample to address this question. We use either 2D slices in projection, or the 3D distribution of galaxies bas...

  • publication . Article . Other literature type . Research . Preprint . 2018
    Open Access
    Authors:
    Eli S. Rykoff; Eli S. Rykoff; M. Carrasco Kind; F. Sobreira; B. Flaugher; David Rapetti; David Rapetti; V. Scarpine; Filipe B. Abdalla; Filipe B. Abdalla; ...
    Publisher: eScholarship, University of California
    Project: NSF | Physics Frontier Center a... (1125897), EC | TESTDE (291329), NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), EC | COGS (240672)

    Comment: 25 pages, 15 figures; update to journal accepted version

  • publication . Article . Preprint . Research . Other literature type . 2018
    Open Access
    Authors:
    Aaron Roodman; Aaron Roodman; Peter Nugent; Lyndsay Old; Lyndsay Old; J. A. Smith; S. Hamilton; Riccardo Campisano; Marcelle Soares-Santos; Marcelle Soares-Santos; ...
    Project: NSF | Leadership Class Scientif... (0725070), EC | COGS (240672), NSF | Collaborative Research: T... (1138766), NSF | Sustained-Petascale In Ac... (1238993), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    Comment: 30 pages, 20 Figures. Release page found at this url https://des.ncsa.illinois.edu/releases/dr1

  • publication . Article . Preprint . 2016
    Open Access English
    Authors:
    Claudio Bruderer; Shantanu Desai; T. M. C. Abbott; Marcos Lima; R. Armstrong; Francisco J. Castander; K. Honscheid; A. Benoit-Lévy; A. Benoit-Lévy; Pablo Fosalba; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478)

    Cosmic shear is sensitive to fluctuations in the cosmological matter density field, including on small physical scales, where matter clustering is affected by baryonic physics in galaxies and galaxy clusters, such as star formation, supernovae feedback and AGN feedback....

  • publication . Preprint . Article . 2017
    Open Access English
    Authors:
    A. Benoit-Lévy; Joshua A. Frieman; G. Tarle; Juliana Kwan; Kevin Reil; Enrique Gaztañaga; V. Scarpine; K. Honscheid; Jennifer L. Marshall; A. Roodman; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478), EC | COGS (240672), EC | TESTDE (291329)

    We present a measurement of galaxy-galaxy lensing around a magnitude-limited ($i_{AB} < 22.5$) sample of galaxies from the Dark Energy Survey Science Verification (DES-SV) data. We split these lenses into three photometric-redshift bins from 0.2 to 0.8, and determine th...

  • publication . Article . Research . Other literature type . Preprint . 2017
    Open Access English
    Authors:
    F. Sobreira; B. Flaugher; M. Carrasco Kind; Jochen Weller; Felipe Menanteau; C. Sanchez; Enrique Gaztañaga; C. Krawiec; P. Vielzeuf; E. M. Huff; ...
    Project: EC | COGS (240672), NSF | Collaborative Research: T... (1138766), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg$^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in both the flat $\Lambda$CDM and...

  • publication . Article . Preprint . Other literature type . 2019
    Open Access
    Authors:
    T. de Haan; T. de Haan; Felipe Menanteau; Erin S. Sheldon; G. Tarle; Joe Zuntz; Enrique Gaztañaga; Stephen Padin; Jennifer L. Marshall; Molly E. C. Swanson; ...
    Publisher: eScholarship, University of California
    Project: EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COGS (240672)

    Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation functions, on the other hand, depen...

34 research outcomes, page 1 of 4