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263 research outcomes, page 1 of 27
  • publication . Article . Preprint . Other literature type . 2019
    Cosmological lensing ratios with DES Y1, SPT and Planck
    Open Access English
    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; ...
    Persistent Identifiers

    doi: 10.1093/mnras/stz1309

    handle: 20.500.11820/32cacb98-d8aa-4d74-9e62-7bb84bb7bdce

    Publisher: HAL CCSD
    Project: EC | TESTDE (291329), NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), 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...

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  • publication . Article . Research . Other literature type . Preprint . 2017
    Dark Energy Survey Year 1 Results: Measurement of the Baryon Acoustic Oscillation scale in the distribution of galaxies to redshift 1
    Open Access
    Authors:
    M. Banerji; Ofer Lahav; Daniel Gruen; M. D. Johnson; Robert C. Smith; P. Fosalba; T. M. C. Abbott; R. Rosenfeld; Marcos Lima; Daniel Thomas; ...
    Persistent Identifiers

    doi: 10.1093/mnras/sty3351

    handle: 1887/82553

    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COGS (240672), EC | COSMICDAWN (306478)

    We present angular diameter distance measurements obtained by locating the BAO scale in the distribution of galaxies selected from the first year of Dark Energy Survey data. We consider a sample of over 1.3 million galaxies distributed over a footprint of 1318 deg$^2$ w...

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  • publication . Article . Research . Preprint . Other literature type . 2018
    Dark energy survey year 1 results: the effect of intracluster light on photometric redshifts for weak gravitational lensing
    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; ...
    Persistent Identifiers

    doi: 10.1093/mnras/stz2036

    Publisher: Oxford
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    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...

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  • publication . Article . Preprint . Research . 2019
    Stellar mass as a galaxy cluster mass proxy:application to the Dark Energy Survey redMaPPer clusters
    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; ...
    Persistent Identifiers

    doi: 10.1093/mnras/staa526

    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), RCUK | STFC Sussex 2015 DTP (ST/N504452/1), EC | COSMICDAWN (306478), EC | COGS (240672)

    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...

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  • publication . Article . Other literature type . Preprint . Research . 2019
    Steve: A Hierarchical Bayesian Model for Supernova Cosmology
    Open Access English
    Authors:
    M. A. G. Maia; D. L. Burke; D. L. Burke; Daniel Thomas; Rafe Schindler; Santiago Avila; M. March; Tamara M. Davis; Michael Schubnell; Marcos Lima; ...
    Persistent Identifiers

    doi: 10.3847/1538-4357/ab13a3

    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    We present a new Bayesian hierarchical model (BHM) named Steve for performing type Ia supernova (SNIa) cosmology fits. This advances previous works by including an improved treatment of Malmquist bias, accounting for additional sources of systematic uncertainty, and inc...

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  • publication . Preprint . 2020
    A machine learning approach to galaxy properties: joint redshift-stellar mass probability distributions with Random Forest
    Open Access English
    Authors:
    Mucesh, S.; Hartley, W. G.; Palmese, A.; Lahav, O.; Whiteway, L.; Bluck, A. F. L.; Alarcon, A.; Amon, A.; Bechtol, K.; Bernstein, G. M.; ...
    Persistent Identifiers

    doi: 10.1093/mnras/stab164

    Project: RCUK | UCL Astrophysics Consolid... (ST/M001334/1), EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COGS (240672)

    Comment: 18 pages, 8 figures, Accepted by MNRAS

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  • publication . Article . Preprint . 2013
    Constraining monodromy inflation
    Open Access
    Authors:
    Richard Easther; Richard Easther; Hiranya V. Peiris; Hiranya V. Peiris; Raphael Flauger; Raphael Flauger; Raphael Flauger;
    Persistent Identifiers

    doi: 10.1088/1475-7516/2013/09/018

    Publisher: IOP Publishing
    Project: EC | COSMICDAWN (306478), NSF | CAREER: Strings on the Ho... (0645435), NSF | Probing Fundamental Physi... (0855425)

    We use cosmic microwave background (CMB) data from the 9-year WMAP release to derive constraints on monodromy inflation, which is characterized by a linear inflaton potential with a periodic modulation. We identify two possible periodic modulations that significantly im...

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  • publication . Research . Preprint . Article . Other literature type . 2018
    Dark Energy Survey Year 1 Results: Methods for Cluster Cosmology and Application to the SDSS
    Open Access
    Authors:
    Eduardo Rozo; Ben Hoyle; Ben Hoyle; T. Jeltema; Rafe Schindler; Michael Schubnell; M. G. Smith; N. Kuropatkin; Marcelle Soares-Santos; Carlos E. Cunha; ...
    Persistent Identifiers

    doi: 10.1093/mnras/stz1949

    Project: EC | TESTDE (291329), NSF | Collaborative Research: T... (1138766), EC | COSMICDAWN (306478), EC | ClustersXCosmo (716762), EC | COGS (240672)

    We perform the first blind analysis of cluster abundance data. Specifically, we derive cosmological constraints from the abundance and weak-lensing signal of \redmapper\ clusters of richness $\lambda\geq 20$ in the redshift range $z\in[0.1,0.3]$ as measured in the Sloan...

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  • publication . Preprint . 2020
    Shadows in the Dark: Low-Surface-Brightness Galaxies Discovered in the Dark Energy Survey
    Open Access English
    Authors:
    Tanoglidis, D.; Drlica-Wagner, A.; Wei, K.; Li, T. S.; Sánchez, F. J.; Zhang, Y.; Peter, A. H. G.; Feldmeier-Krause, A.; Prat, J.; Casey, K.; ...
    Project: EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766), EC | COGS (240672)

    We present a catalog of 23,790 extended low-surface-brightness galaxies (LSBGs) identified in $\sim 5000 \deg^2$ from the first three years of imaging data from the Dark Energy Survey (DES). Based on a single-component S\'ersic model fit, we define extended LSBGs as gal...

  • publication . Article . Other literature type . Preprint . 2019
    First cosmology results using Type Ia supernovae from the Dark Energy Survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters
    Open Access English
    Authors:
    J. Calcino; E. Swann; A. A. Plazas; Marcelle Soares-Santos; T. M. C. Abbott; Paul Martini; Marcos Lima; N. Kuropatkin; V. Scarpine; Richard Kessler; ...
    Persistent Identifiers

    doi: 10.1093/mnras/stz619

    Publisher: Oxford
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    Comment: 17 pages, 12 figures, submitted to MNRAS

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263 research outcomes, page 1 of 27