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207 research outcomes, page 1 of 21
  • 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 . Other literature type . Preprint . 2018
    Open Access English
    Authors:
    A. A. Plazas; Michael Troxel; P. Vielzeuf; Joe Zuntz; Elisabeth Krause; Michael T. Busha; Rafe Schindler; A. G. Kim; David W. Gerdes; Sahar S. Allam; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    We describe the derivation and validation of redshift distribution estimates and their uncertainties for the galaxies used as weak lensing sources in the Dark Energy Survey (DES) Year 1 cosmological analyses. The Bayesian Photometric Redshift (BPZ) code is used to assig...

  • 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 . Research . 2018
    Open Access
    Authors:
    Tesla E. Jeltema; B. Zhang; Eric Suchyta; Pablo Fosalba; Tim Eifler; Tim Eifler; Peter Doel; W. G. Hartley; W. G. Hartley; T. M. C. Abbott; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | SPCND (615929), EC | COGS (240672), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    Comment: Accepted to MNRAS on 22.8.2018

  • publication . Preprint . Research . Article . Other literature type . 2019
    Open Access English
    Authors:
    V. Scarpine; Filipe B. Abdalla; Filipe B. Abdalla; R. L. C. Ogando; A. A. Plazas; T. N. Varga; T. N. Varga; K. Honscheid; Enrique Gaztañaga; N. Kuropatkin; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    We study the effect of diffuse intracluster light on the critical surface mass density estimated from photometric redshifts of lensing source galaxies, and the resulting bias in a weak lensing measurement of galaxy cluster mass. Under conservative assumptions, we find t...

  • 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...

  • publication . Article . Preprint . Research . 2020
    Open Access English
    Authors:
    G. Tarle; T. McClintock; Risa H. Wechsler; Risa H. Wechsler; D. L. Burke; D. L. Burke; Daniel Thomas; Eric Suchyta; E. J. Sanchez; Santiago Avila; ...
    Project: RCUK | STFC Sussex 2015 DTP (ST/N504452/1), NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), EC | COGS (240672), EC | TESTDE (291329)

    We introduce a galaxy cluster mass observable, $\mu_\star$, based on the stellar masses of cluster members, and we present results for the Dark Energy Survey (DES) Year 1 observations. Stellar masses are computed using a Bayesian Model Averaging method, and are validate...

  • publication . Preprint . Article . Other literature type . 2019
    Open Access English
    Authors:
    Carlos E. Cunha; Gregory Tarle; Peter Doel; Paul Martini; F. Sobreira; Vic Scarpine; H. Thomas Diehl; Dominic Hanley; Marcelle Soares-Santos; J. Gschwend; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COGS (240672), EC | COSMICDAWN (306478)

    Using stellar population models, we predicted that the Dark Energy Survey (DES) - due to its special combination of area (5000 deg. sq.) and depth ($i = 24.3$) - would be in the position to detect massive ($\gtrsim 10^{11}$ M$_{\odot}$) galaxies at $z \sim 4$. We confro...

  • publication . Article . Other literature type . Preprint . 2018
    Open Access English
    Authors:
    Christopher S. Kochanek; M. Banerji; Brad E. Tucker; G. Tarle; A. A. Plazas; K. Honscheid; N. E. Sommer; C. Lidman; Christopher P. Davis; C. B. D'Andrea; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    We present accretion disk size measurements for 15 luminous quasars at $0.7 \leq z \leq 1.9$ derived from $griz$ light curves from the Dark Energy Survey. We measure the disk sizes with continuum reverberation mapping using two methods, both of which are derived from th...

  • publication . Article . Research . Preprint . Other literature type . 2019
    Open Access English
    Authors:
    S. Avila; M. March; Peter Melchior; Richard G. McMahon; Christopher D. Fassnacht; Joshua A. Frieman; Joshua A. Frieman; Paul L. Schechter; D. Brooks; S. Desai; ...
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), SNSF | Ertragsbildung bei Getrei... (3100-005896), EC | COGS (240672), SNSF | COSMOGRAIL: Cosmology wit... (200020_172712), EC | COSMICDAWN (306478), EC | TESTDE (291329)

    Comment: 22 pages, 9 figures, 8 tables, Accepted to MNRAS. This version: updated Table 4 from the erratum

207 research outcomes, page 1 of 21