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296 research outcomes, page 1 of 30
  • publication . Article . Preprint . 2016
    Open Access English
    Authors:
    Syed Uddin; Karl Glazebrook; Paul Martini; Flavia Sobreira; Matias Carrasco Kind; Rob Sharp; Richard McMahon; Nicholas Seymour; Geraint Lewis; Dale Mudd; ...
    Publisher: OXFORD UNIV PRESS
    Project: EC | COSMICDAWN (306478), EC | TESTDE (291329), EC | COGS (240672)

    We present the discovery of a z=0.65 low-ionization broad absorption line (LoBAL) quasar in a post-starburst galaxy in data from the Dark Energy Survey (DES) and spectroscopy from the Australian Dark Energy Survey (OzDES). LoBAL quasars are a minority of all BALs, and r...

  • publication . Article . Preprint . 2017
    Open Access
    Authors:
    Andreu Font-Ribera; Simeon Bird;
    Publisher: Oxford University Press (OUP)
    Project: RCUK | Precision cosmology at hi... (ST/N003853/1), EC | COSMICDAWN (306478)

    Comment: 11 pages, 6 figures. Minor changes to match version published in MNRAS

  • publication . Article . Preprint . 2019
    Open Access English
    Authors:
    Joseph Mohr; Juan De Vicente; Juan Garcia-Bellido; Santiago Avila; Emmanuel Bertin; Enrique Gaztanaga; August E. Evrard;
    Publisher: Oxford University Press
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    We present the MARD-Y3 catalog of between 1086 and 2171 galaxy clusters (52\% and 65\% new) produced using multi-component matched filter (MCMF) followup in 5000\,deg$^2$ of DES-Y3 optical data of the $\sim$20000 overlapping 2RXS X-ray sources. Optical counterparts are ...

  • publication . Preprint . 2020
    Open Access English
    Authors:
    Aguena, M.; Benoist, C.; Da Costa, L.N.; Ogando, R.L.; Gschwend, J.; Sampaio dos Santos, H.; Lima, M.; Maia, M.A.; Allam, S.; Avila, S.; ...
    Publisher: HAL CCSD
    Project: EC | TESTDE (291329), NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | COSMICDAWN (306478)

    We present a new (2+1)D galaxy cluster finder based on photometric redshifts called Wavelet Z Photometric (WaZP) applied to DES first year (Y1A1) data. The results are compared to clusters detected by the South Pole Telescope (SPT) survey and the redMaPPer cluster finde...

  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Boris Leistedt;
    Project: EC | COSMICDAWN (306478)

    We present optimal measurements of the angular power spectrum of the XDQSOz catalogue of photometric quasars from the Sloan Digital Sky Survey. These measurements rely on a quadratic maximum likelihood estimator that simultaneously measures the auto- and cross-power spe...

  • publication . Article . Other literature type . Preprint . 2017
    Open Access
    Authors:
    Andrew Fruchter; Felipe Menanteau; Andrew Levan; Richard McMahon; Marcos Lima; Emmanuel Bertin; Jochen Weller; Ricardo Ogando; Marcelle Soares-Santos; Juan Garcia-Bellido; ...
    Publisher: Astrophysical Journal Letters
    Project: EC | COGS (240672), NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    We present a study of NGC 4993, the host galaxy of the GW170817 gravitational wave event, the GRB170817A short gamma-ray burst (sGRB) and the AT2017gfo kilonova. We use Dark Energy Camera imaging, AAT spectra and publicly available data, relating our findings to binary ...

  • publication . Article . Other literature type . Preprint . 2019
    Open Access English
    Authors:
    Pedro T. P. Viana; John Philip Stott; Juan Garcia-Bellido; Matias Carrasco Kind; Enrique Gaztanaga; Matt Hilton; Scott Kay; Aurelio Carnero Rosell;
    Project: EC | TESTDE (291329), NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | COSMICDAWN (306478)

    Using $\sim 100$ X-ray selected clusters in the Dark Energy Survey Science Verification data, we constrain the luminosity function (LF) of cluster red sequence galaxies as a function of redshift. This is the first homogeneous optical/X-ray sample large enough to constra...

  • publication . Preprint . Article . 2020
    Open Access English
    Authors:
    Constance Mahony; Boris Leistedt; Hiranya V. Peiris; Jonathan Braden; Benjamin Joachimi; Andreas Korn; Linda Cremonesi; Ryan Nichol;
    Project: RCUK | UCL Experimental Particle... (ST/S000666/1), EC | COSMICDAWN (306478), RCUK | UCL Experimental Particle... (ST/N000285/1)

    Comment: v3: Version accepted in Phys Rev D. Minor clarifications and added robustness tests, conclusions unchanged

  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Leistedt, Boris; Peiris, Hiranya V.; Roth, Nina;
    Project: EC | COSMICDAWN (306478)

    We derive robust constraints on primordial non-Gaussianity (PNG) using the clustering of 800,000 photometric quasars from the Sloan Digital Sky Survey in the redshift range $0.5<z<3.5$. These measurements rely on the novel technique of {\it extended mode projection} to ...

  • publication . Preprint . Article . 2017
    Open Access English
    Authors:
    Alex Kim; Mathew Smith; Santiago Gonzalez Gaitan; Chris D'Andrea; Aurelio Carnero Rosell; Flavia Sobreira; Juan Garcia-Bellido; Marcos Lima; Matias Carrasco Kind; Mark Sullivan; ...
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COGS (240672), EC | SPCND (615929), EC | COSMICDAWN (306478), NSF | Type Ia Supernovae in the... (1311862), NSF | The Progenitors and Explo... (1518052)

    We present the Dark Energy Survey (DES) discovery of DES15E2mlf, the most distant superluminous supernova (SLSN) spectroscopically confirmed to date. The light curves and Gemini spectroscopy of DES15E2mlf indicate that it is a Type I superluminous supernova (SLSN-I) at ...

296 research outcomes, page 1 of 30
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