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15 research outcomes, page 1 of 2
  • publication . Preprint . Article . 2015
    MULTIMODECODE: an efficient numerical solver for multifield inflation
    Open Access English
    Authors:
    Layne C. Price; Richard Easther; Jonathan Frazer; Jonathan Frazer; Hiranya V. Peiris; Jiajun Xu;
    doi: 10.1088/1475-7516/2015/03/005
    Project: NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478)

    We present MultiModeCode, a Fortran 95/2000 package for the numerical exploration of multifield inflation models. This program facilitates efficient Monte Carlo sampling of prior probabilities for inflationary model parameters and initial conditions and is the first pub...

  • publication . Article . Preprint . 2014
    Sparse inpainting and isotropy
    Open Access
    Authors:
    Domenico Marinucci; Benjamin D. Wandelt; Valentina Cammarota; Stephen M. Feeney; Jason D. McEwen; Hiranya V. Peiris; Hiranya V. Peiris;
    doi: 10.1088/1475-7516/2014/01/050
    Publisher: IOP Publishing
    Project: EC | PASCAL (277742), ANR | SUPER (11-IDEX-0004), EC | COSMICDAWN (306478)

    Comment: 18 pages, 6 figures. v3: matches version published in JCAP; formatting changes and single typo correction only. Code available from http://zuserver2.star.ucl.ac.uk/~smf/code.html

  • publication . Article . Other literature type . Preprint . 2015
    Cosmic bubble and domain wall instabilities III: The role of oscillons in three-dimensional bubble collisions
    Open Access
    Authors:
    J. Richard Bond; Jonathan Braden; Jonathan Braden; Laura Mersini-Houghton;
    doi: 10.1088/1475-7516/2015/09/004
    Publisher: IOP Publishing
    Project: EC | COSMICDAWN (306478), NSERC

    Comment: 35 pages + references, 26 figures. Submitted to JCAP. v2: Acknowledgments updates, no other changes

  • publication . Article . Other literature type . Preprint . 2015
    Designing and testing inflationary models with Bayesian networks
    Open Access English
    Authors:
    Layne C. Price; Layne C. Price; Richard Easther; Hiranya V. Peiris; Jonathan Frazer; Jonathan Frazer;
    doi: 10.3204/pubdb-2016-01166 , 10.1088/1475-7516/2016/02/049 , 10.3204/pubdb-2015-04810
    Publisher: IOP
    Project: EC | STRINGFLATION (647995), NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478)

    Even simple inflationary scenarios have many free parameters. Beyond the variables appearing in the inflationary action, these include dynamical initial conditions, the number of fields, and couplings to other sectors. These quantities are often ignored but cosmological...

  • publication . Article . Preprint . Other literature type . 2014
    Simulating the universe(s) II: phenomenology of cosmic bubble collisions in full general relativity
    Open Access English
    Authors:
    Anthony Aguirre; Matthew C. Johnson; Matthew C. Johnson; Hiranya V. Peiris; Carroll L. Wainwright;
    doi: 10.1088/1475-7516/2014/10/024
    Publisher: Institute of Physics Publishing/SISSA
    Project: EC | COSMICDAWN (306478)

    Comment: 35 pages, 17 figures

  • publication . Article . Preprint . Other literature type . 2014
    The Polarized Radiation Imaging and Spectroscopy Mission
    Open Access
    Authors:
    J. González-Nuevo; Anna Bonaldi; Créidhe O'Sullivan; Pedro G. Ferreira; Sabino Matarrese; Mathieu Remazeilles; Enrique Martínez-González; Sergio Colafrancesco; F. J. Casas; Viviana Casasola; ...
    doi: 10.1088/1475-7516/2014/02/006
    handle: 11370/de8907bf-e392-4f33-9ea2-9d5623cafd20 , 10261/110222 ,
    View all 4 identifiers
    Project: EC | RADIOFOREGROUNDS (307209), EC | COSMICDAWN (306478), SNSF | Constraining cosmological... (200020_149195)

    PRISM (Polarized Radiation Imaging and Spectroscopy Mission) was proposed to ESA in May 2013 as a large-class mission for investigating within the framework of the ESA Cosmic Vision program a set of important scientific questions that require high resolution, high sensi...

  • publication . Article . Preprint . Other literature type . 2013
    Lack of) Cosmological evidence for dark radiation after Planck
    Open Access English
    Authors:
    Hiranya V. Peiris; Hiranya V. Peiris; Daniel J. Mortlock; Stephen M. Feeney; Licia Verde; Licia Verde;
    doi: 10.1088/1475-7516/2013/09/013
    Project: EC | PHYS.LSS (240117), EC | COSMICDAWN (306478)

    Comment: 16 pages, 2 figures, small changes to match journal accepted version

  • publication . Article . Preprint . Other literature type . 2014
    Simulating the universe(s): from cosmic bubble collisions to cosmological observables with numerical relativity
    Open Access English
    Authors:
    Anthony Aguirre; Hiranya V. Peiris; Matthew C. Johnson; Matthew C. Johnson; Steven L. Liebling; Carroll L. Wainwright; Luis Lehner;
    doi: 10.1088/1475-7516/2014/03/030
    Project: NSF | Collaborative Research: L... (1308621), NSF | Collaborative Research: D... (0969827), NSERC , EC | COSMICDAWN (306478)

    Comment: 52 pages, 23 figures. A four page summary of methods and results follows the introduction. Version 2 contains minor clarifications and edits to match the version accepted for publication by JCAP. Version 3 fixes a typo in Eq. 3.10 and a typo in the paragraph af...

  • publication . Article . Preprint . 2018
    Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest
    Open Access English
    Authors:
    Hiranya V. Peiris; Hiranya V. Peiris; Simeon Bird; Keir K. Rogers; Licia Verde; Andrew Pontzen; Andreu Font-Ribera;
    doi: 10.1088/1475-7516/2019/02/031
    Publisher: IOP PUBLISHING LTD
    Project: RCUK | UCL Astrophysics Consolid... (ST/R000476/1), NSF | New Cosmological Constrai... (1817256), EC | COSMICDAWN (306478), EC | BePreSysE (725327)

    Comment: 23 pages, 4 figures. Minor changes to match version published in JCAP

  • publication . Preprint . Article . 2013
    Constraining monodromy inflation
    Open Access English
    Authors:
    Richard Easther; Richard Easther; Hiranya V. Peiris; Hiranya V. Peiris; Raphael Flauger; Raphael Flauger; Raphael Flauger;
    doi: 10.1088/1475-7516/2013/09/018
    Project: NSF | CAREER: Strings on the Ho... (0645435), NSF | Probing Fundamental Physi... (0855425), EC | COSMICDAWN (306478)

    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...

15 research outcomes, page 1 of 2