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191 research outcomes, page 1 of 20
  • publication . Article . Preprint . 2019
    Open Access English
    Authors:
    Martínez-Vázquez, C E; Vivas, A K; Gurevich, M; Walker, A R; McCarthy, M; Pace, A B; Stringer, K M; Santiago, B; Hounsell, R; Macri, L; ...
    Persistent Identifiers
    Country: France
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    This work presents the first search for RR Lyrae stars (RRLs) in four of the ultra-faint systems imaged by the Dark Energy Survey (DES) using SOAR/Goodman and Blanco/DECam imagers. We have detected two RRLs in the field of Grus I, none in Kim 2, one in Phoenix II, and f...

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  • publication . Article . Preprint . 2021
    Open Access English
    Authors:
    Pedro H. Bernardinelli; Gary Bernstein; Benjamin T. Montet; Robert Weryk; Richard J. Wainscoat; Michel Aguena; S. Allam; F. Andrade-Oliveira; J. Annis; Salcedo Romero de Ávila; ...
    Persistent Identifiers
    Project: EC | COGS (240672), NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    Comet C/2014 UN271 (Bernardinelli-Bernstein), incoming from the Oort cloud, is remarkable in having the brightest (and presumably largest) nucleus of any well-measured comet and having been discovered at the heliocentric distance r h ≈ 29 au, farther than any Oort cloud...

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  • publication . Article . Preprint . 2020
    Open Access English
    Authors:
    Daniel Scolnic; M. N. K. Smith; A. Massiah; P. Wiseman; D. J. Brout; Richard Kessler; Tamara M. Davis; Ryan J. Foley; Lluís Galbany; Samuel Hinton; ...
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France
    Project: EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Next-Generation Supernova... (1815935), NSF | The Progenitors and Explo... (1518052), EC | SNDTD (839090), NSF | Characterizing the Physic... (1517742), NSF | Collaborative Research: T... (1138766), EC | SPCND (615929)

    D.S. is supported by DOE grant DE-SC0010007, the David and Lucile Packard Foundation. D.S. and R.K. are supported in part by NASA under Contract No. NNG17PX03C issued through the WFIRST Science Investigation Teams Programme. D.B. and M.S. were supported by DOE grant DE-...

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  • publication . Preprint . Article . 2021
    Open Access English
    Authors:
    Everett, S.; Yanny, B.; Kuropatkin, N.; Huff, E.M.; Zhang, Y.; Myles, J.; Masegian, A.; Elvin-Poole, J.; Allam, S.; Bernstein, G.M.; ...
    Publisher: The American Astronomical Society
    Countries: France, United Kingdom
    Project: NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478), EC | COGS (240672)

    We describe an updated calibration and diagnostic framework, Balrog, used to directly sample the selection and photometric biases of the Dark Energy Survey's (DES) Year 3 (Y3) dataset. We systematically inject onto the single-epoch images of a random 20% subset of the D...

  • publication . Article . Preprint . 2019
    Open Access English
    Authors:
    Kovács, A; Sánchez, C; García-Bellido, J; Elvin-Poole, J; Hamaus, N; Miranda, V; Nadathur, S; Abbott, T; Abdalla, F B; Annis, J; ...
    Persistent Identifiers
    Publisher: HAL CCSD
    Countries: France, United Kingdom
    Project: EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766), EC | SPCND (615929)

    The largest structures in the cosmic web probe the dynamical nature of dark energy through their integrated Sachs-Wolfe imprints. In the strength of the signal, typical cosmic voids have shown good consistency with expectation $A_{\rm ISW}=\Delta T^{\rm data} / \Delta T...

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  • publication . Preprint . Article . 2021
    Open Access English
    Authors:
    Porredon, A.; Crocce, M.; Elvin-Poole, J.; Cawthon, R.; Giannini, G.; De Vicente, J.; Carnero Rosell, A.; Ferrero, I.; Krause, E.; Xiao Fang; ...
    Publisher: HAL CCSD
    Country: France
    Project: EC | COGS (240672), NSF | Collaborative Research: T... (1138766), NSF | Sustained-Petascale In Ac... (1238993), EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Leadership Class Scientif... (0725070)

    Two of the most sensitive probes of the large scale structure of the universe are the clustering of galaxies and the tangential shear of background galaxy shapes produced by those foreground galaxies, so-called galaxy-galaxy lensing. Combining the measurements of these ...

  • publication . Article . Preprint . 2019
    Open Access English
    Authors:
    DES Collaboration; Abbott, T. M. C.; Alarcon, A.; Allam, S.; Andersen, P.; Andrade-Oliveira, F.; Annis, J.; Asorey, J.; Avelino, A.; Avila, S.; ...
    Countries: France, Denmark, France, France, France, France, United States, United Kingdom, Brazil
    Project: EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766)

    The combination of multiple observational probes has long been advocated as a powerful technique to constrain cosmological parameters, in particular dark energy. The Dark Energy Survey has measured 207 spectroscopically--confirmed Type Ia supernova lightcurves; the bary...

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  • publication . Article . 2016 . Embargo End Date: 31 Jan 2018
    Open Access English
    Authors:
    Abbott, BP; Abbott, R; Abbott, TD; Abernathy, MR; Acernese, F; Ackley, K; Adams, C; Adams, T; Addesso, P; Adhikari, RX; ...
    Persistent Identifiers
    Publisher: Apollo - University of Cambridge Repository
    Countries: United States, United Kingdom
    Project: EC | TESTDE (291329), EC | GAIA-ESO-MW (320360), EC | COSMICDAWN (306478), EC | COGS (240672), UKRI | The transient sky: an int... (ST/I001123/1), NSF | Pan-STARRS1: Operations; ... (1238877), EC | ULTRAS (291222), NSF | Collaborative Research: T... (1138766), NSF | REU Site in Physics at Th... (1156600), EC | 4PI-SKY (267697),...

    © 2016. The American Astronomical Society. All rights reserved. A gravitational-wave (GW) transient was identified in data recorded by the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) detectors on 2015 September 14. The event, initially designated...

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  • publication . Article . 2017
    Open Access English
    Authors:
    Suk Sien Tie; P. Martini; D. Mudd; F. Ostrovski; S. L. Reed; C. Lidman; Christopher S. Kochanek; Tamara M. Davis; R. G. Sharp; S. A. Uddin; ...
    Persistent Identifiers
    Publisher: HAL CCSD
    Countries: France, France, United Kingdom, France, France, France, France
    Project: NSF | Collaborative Research: T... (1138766), EC | COGS (240672), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    We present a study of quasar selection using the supernova fields of the Dark Energy Survey (DES). 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, probabi...

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  • publication . Article . Preprint . 2021
    Open Access English
    Authors:
    M Vincenzi; M Sullivan; O Graur; D Brout; T M Davis; C Frohmaier; L Galbany; C P Gutiérrez; S R Hinton; R Hounsell; ...
    Persistent Identifiers
    Countries: France, France, France, United Kingdom
    Project: EC | SPCND (615929), EC | COGS (240672), UKRI | Astrophysics at Southampt... (ST/R000506/1), EC | SNDTD (839090), UKRI | DISCnet: The Data Intensi... (ST/P006760/1), NSF | Collaborative Research: T... (1138766), EC | TESTDE (291329), EC | COSMICDAWN (306478)

    ABSTRACT The analysis of current and future cosmological surveys of Type Ia supernovae (SNe Ia) at high redshift depends on the accurate photometric classification of the SN events detected. Generating realistic simulations of photometric SN surveys constitutes an essen...

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191 research outcomes, page 1 of 20