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PublicationsOpen AccessCOSMICDAWNHAL DescartesAstronomy and Computing
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50 research outcomes, page 1 of 5
  • publication . Article . Preprint . 2017
    How to quench a galaxy
    Open Access English
    Authors:
    Thomas P. Quinn; Fabio Governato; Amélie Saintonge; Hiranya V. Peiris; Michael Tremmel; Nina Roth; Marta Volonteri; Andrew Pontzen;
    doi: 10.1093/mnras/stw2627
    Publisher: HAL CCSD
    Project: NSF | Collaborative Proposal: D... (1410012), EC | BLACK (614199), RCUK | DiRAC2: 100 Tflop/s HPC c... (ST/K000373/1), NSF | Collaborative Research: A... (1514868), EC | COSMICDAWN (306478)

    We show how the interplay between active galactic nuclei (AGN) and merger history determines whether a galaxy quenches star formation at high redshift. We first simulate, in a full cosmological context, a galaxy of total dynamical mass $10^{12}\,M_{\odot}$ at $z=2$. The...

  • publication . Article . Preprint . 2017
    A Study of Quasar Selection in the Supernova Fields of the Dark Energy Survey
    Open Access
    Authors:
    Kyler Kuehn; Paul Martini; Molly E. C. Swanson; Christopher S. Kochanek; N. Kuropatkin; Karl Glazebrook; Enrique Gaztañaga; R. A. Gruendl; Jennifer L. Marshall; J. Annis; ...
    doi: 10.3847/1538-3881/aa5b8d , 10.3847/1538-3881/aa5b8d/meta
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    We present a study of quasar selection using the DES supernova fields. We used a quasar catalog from an overlapping portion of the SDSS Stripe 82 region to quantify the completeness and efficiency of selection methods involving color, probabilistic modeling, variability...

  • publication . Article . Preprint . 2017
    A multicomponent matched filter cluster confirmation tool for eROSITA: initial application to the RASS and DES-SV data sets
    Open Access English
    Authors:
    D. Brooks; Carlos E. Cunha; Joshua A. Frieman; Joshua A. Frieman; Kevin Reil; V. Scarpine; L. N. da Costa; August E. Evrard; A. K. Romer; Joseph J. Mohr; ...
    doi: 10.1093/mnras/stx2929
    Publisher: HAL CCSD
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    We describe a multi-component matched filter cluster confirmation tool (MCMF) designed for the study of large X-ray source catalogs produced by the upcoming X-ray all-sky survey mission eROSITA. We apply the method to confirm a sample of 88 clusters with redshifts $0.05...

  • publication . Article . Preprint . 2018
    Dark energy survey year 1 results: curved-sky weak lensing mass map
    Open Access
    Authors:
    Michael Schubnell; Markus Rau; H. T. Diehl; M. March; Tommaso Giannantonio; Tommaso Giannantonio; W. G. Hartley; W. G. Hartley; D. L. Burke; D. L. Burke; ...
    doi: 10.1093/mnras/stx3363
    Publisher: Oxford University Press (OUP)
    Project: EC | LENA (678282), NSF | Collaborative Research: T... (1138766), NSF | Physics Frontier Center a... (1125897), EC | TESTDE (291329), EC | COSMIC LENS (681431), EC | COSMICDAWN (306478), EC | COGS (240672)

    Comment: 25 pages, 19 figures, 1 table; revision with changes implemented according to journal referee

  • publication . Article . Preprint . 2017
    Cosmic voids and void lensing in the Dark Energy Survey Science Verification data
    Open Access English
    Authors:
    Eric Suchyta; D. J. James; W. G. Hartley; W. G. Hartley; Alistair R. Walker; J. P. Dietrich; Joseph DeRose; G. Gutierrez; C. B. D'Andrea; C. B. D'Andrea; ...
    doi: 10.1093/mnras/stw2745
    Publisher: HAL CCSD
    Project: EC | COSMOVOID (660053), NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    Galaxies and their dark matter halos populate a complicated filamentary network around large, nearly empty regions known as cosmic voids. Cosmic voids are usually identified in spectroscopic galaxy surveys, where 3D information about the large-scale structure of the Uni...

  • publication . Article . Preprint . 2015
    Using hybrid GPU/CPU kernel splitting to accelerate spherical convolutions
    Open Access English
    Authors:
    Benjamin D. Wandelt; P. M. Sutter; Franz Elsner; Franz Elsner;
    doi: 10.1016/j.ascom.2015.03.009
    Publisher: HAL CCSD
    Project: NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478), NSF | Collaborative Research: S... (0908902)

    We present a general method for accelerating by more than an order of magnitude the convolution of pixelated functions on the sphere with a radially-symmetric kernel. Our method splits the kernel into a compact real-space component and a compact spherical harmonic space...

  • publication . Article . Preprint . Other literature type . 2017
    The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Discovery of the Optical Counterpart Using the Dark Energy Camera
    Open Access English
    Authors:
    Filipe B. Abdalla; Filipe B. Abdalla; Eric H. Neilsen; A. Palmese; Richard Kessler; Alfredo Zenteno; M. Banerji; Huan Lin; Wc Wester; C. J. Conselice; ...
    doi: 10.3847/2041-8213/aa9059 , 10.3847/2041-8213/aa9059/meta
    Publisher: American Astronomical Society
    Project: EC | CLUSTERS (335936), NSF | The Progenitors and Explo... (1518052), NSF | Physics Frontier Center a... (1125897), NSF | Gamma-Ray Bursts: From Pr... (1411763), NSF | Gravitational Wave Physic... (1707954), NSF | From First Detections to ... (1708081), NSF | Collaborative Research: T... (1138766), NSF | Gamma-Ray Bursts: Physics... (1714498), NSF | CAREER: Hearing and Seein... (1151836), EC | COGS (240672),...

    We present the Dark Energy Camera (DECam) discovery of the optical counterpart of the first binary neutron star merger detected through gravitational wave emission, GW170817. Our observations commenced 10.5 hours post-merger, as soon as the localization region became ac...

  • publication . Article . Preprint . 2017
    Testing the lognormality of the galaxy and weak lensing convergence distributions from Dark Energy Survey maps
    Open Access English
    Authors:
    D. J. James; C. B. D'Andrea; C. B. D'Andrea; Gary Bernstein; Robert C. Smith; Shantanu Desai; Shantanu Desai; E. Bertin; D. W. Gerdes; Ofer Lahav; ...
    doi: 10.1093/mnras/stw2106
    Publisher: Oxford University Press
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    Comment: 17 pages, 14 figures, submitted to MNRAS

  • publication . Article . Preprint . Research . Other literature type . 2018
    The Dark Energy Survey: Data Release 1
    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; ...
    doi: 10.3847/1538-4365/aae9f0 , 10.3847/1538-4365/aae9f0/meta
    handle: 20.500.11820/13530c9a-abb3-4380-b049-9cca3971c287
    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
    Inference from the Small Scales of Cosmic Shear with Current and Future Dark Energy Survey Data
    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; ...
    doi: 10.1093/mnras/stw2849
    handle: 20.500.11820/507aeea7-06ec-4695-922f-d9a4ad787507
    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....

50 research outcomes, page 1 of 5