First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

J. Lasker; R. Kessler; D. Scolnic; D. Brout; D. L. Burke; C. B. D'Andrea; T. M. Davis; S. R. Hinton; A. G. Kim; T. S. Li; C. Lidman; E. Macaulay; A. Moller; E. S. Rykoff; M. Sako; M. Smith; M. Sullivan; E. Swann; E. Tucker; W. Wester; B. A. Bassett; T. M. C. Abbott; S. Allam; J. Annis; S. Avila; K. Bechtol; E. Bertin; D. Brooks; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; J. Calcino; D. Carollo; N. da Costa; C. Davis; J. De Vicente; H. T. Diehl; P. Doel; A. Drlica-Wagner; B. Flaugher; J. Frieman; J. Garcia-Bellido; E. Gaztanaga; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. L. Hollowood; K. Honscheid; J. K. Hoormann; D. J. James; S. Kent; E. Krause; R. Kron; K. Kuehn; N. Kuropatkin; M. Lima; M. A. G. Maia; J. L. Marshall; P. Martini; F. Menanteau; C. J. Miller; R. Miquel; A. A. Plazas; E. Sanchez; V. Scarpine; I. Sevilla-Noarbe; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. L. Tucker; A. R. Walker; DES Collaboration

doi:10.1093/mnras/stz619

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First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

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First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

J. Lasker, R. Kessler, D. Scolnic, D. Brout, D. L. Burke, C. B. D'Andrea, T. M. Davis, S. R. Hinton, A. G. Kim, T. S. Li, …

Monthly notices of the Royal Astronomical Society, Vol.485(4), pp.5329-5344

06/01/2019

DOI: https://doi.org/10.1093/mnras/stz619

Abstract

Astronomy & Astrophysics

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Physical Sciences

Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we present the application of spectral energy distribution-dependent 'chromatic corrections' to the SN light-curve photometry from the Dark Energy Survey (DES). These corrections depend on the combined atmospheric and instrumental transmission function for each exposure, and they affect photometry at the 0.01mag (1 per cent) level, comparable to systematic uncertainties in calibration and photometry. Fitting our combined DES and low-z SN Ia sample with baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) priors for the cosmological parameters Omega(m) (the fraction of the critical density of the universe comprised of matter) and w (the dark energy equation of state parameter), we compare those parameters before and after applying the corrections. We find the change in w and Omega(m) due to not including chromatic corrections is -0.002 and 0.000, respectively, for the DES-SN3YR sample with BAO and CMB priors, consistent with a larger DES-SN3YR-like simulation, which has a w-change of 0.0005 with an uncertainty of 0.008 and an Omega(m) change of 0.000 with an uncertainty of 0.002. However, when considering samples on individual CCDs we find large redshift-dependent biases (similar to 0.02 in distance modulus) for SN distances.

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Title: First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters
Creators: J. Lasker - University of Chicago
R. Kessler - University of Chicago
D. Scolnic - University of Chicago
D. Brout - University of Pennsylvania
D. L. Burke - SLAC National Accelerator Laboratory
C. B. D'Andrea - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
T. M. Davis - The University of Queensland
S. R. Hinton - The University of Queensland
A. G. Kim - Lawrence Berkeley National Laboratory
T. S. Li - Fermi National Accelerator Laboratory
C. Lidman - Australian National University
E. Macaulay - University of Portsmouth
A. Moller - Centre National de la Recherche Scientifique
E. S. Rykoff - SLAC National Accelerator Laboratory
M. Sako - University of Pennsylvania
M. Smith - University of Southampton
M. Sullivan - University of Southampton
E. Swann - University of Southampton
E. Tucker - ACT
W. Wester - Fermi National Accelerator Laboratory
B. A. Bassett - African Institute for Mathematical Sciences
T. M. C. Abbott - Cerro Tololo Inter-American Observatory
S. Allam - Fermi National Accelerator Laboratory
J. Annis - Fermi National Accelerator Laboratory
S. Avila - University of Portsmouth
K. Bechtol - University of Wisconsin–Madison
E. Bertin - Centre National de la Recherche Scientifique
D. Brooks - University College London
A. Carnero Rosell - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M. Carrasco Kind - University of Illinois Urbana-Champaign
J. Carretero - Institute for High Energy Physics
F. J. Castander - Institut d'Estudis Espacials de Catalunya
J. Calcino - The University of Queensland
D. Carollo - Osservatorio Astrofisico di Torino
N. da Costa - Laboratório Interinstitucional de e-Astronomia
C. Davis - University of Louisville
J. De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
H. T. Diehl - Fermi National Accelerator Laboratory
P. Doel - University College London
A. Drlica-Wagner - Fermi National Accelerator Laboratory
B. Flaugher - Fermi National Accelerator Laboratory
J. Frieman - Fermi National Accelerator Laboratory
J. Garcia-Bellido - Universidad Autónoma de Madrid
E. Gaztanaga - S&N
D. Gruen - Kavli Institute for Particle Astrophysics and Cosmology
R. A. Gruendl - National Center for Supercomputing Applications
J. Gschwend - Laboratório Interinstitucional de e-Astronomia
G. Gutierrez - Fermi National Accelerator Laboratory
D. L. Hollowood - Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
K. Honscheid - The Ohio State University
J. K. Hoormann - The University of Queensland
D. J. James - Center for Astrophysics Harvard & Smithsonian
S. Kent - Fermi National Accelerator Laboratory
E. Krause - University of Arizona
R. Kron - Fermi National Accelerator Laboratory
K. Kuehn - Australian Astronomical Observatory
N. Kuropatkin - Fermi National Accelerator Laboratory
M. Lima - Laboratório Interinstitucional de e-Astronomia
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
J. L. Marshall - Mitchell Institute
P. Martini - The Ohio State University
F. Menanteau - National Center for Supercomputing Applications
C. J. Miller - University of Michigan
R. Miquel - Institució Catalana de Recerca i Estudis Avançats
A. A. Plazas - Jet Propulsion Laboratory
E. Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
V. Scarpine - Fermi National Accelerator Laboratory
I. Sevilla-Noarbe - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
R. C. Smith - Cerro Tololo Inter-American Observatory
M. Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
F. Sobreira - Universidade Estadual de Campinas (UNICAMP)
E. Suchyta - Oak Ridge National Laboratory
M. E. C. Swanson - National Center for Supercomputing Applications
G. Tarle - Institute for High Energy Physics
D. L. Tucker - Fermi National Accelerator Laboratory
A. R. Walker - Cerro Tololo Inter-American Observatory
DES Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.485(4), pp.5329-5344
Publisher: Oxford Univ Press
Number of pages: 16
Grant note: European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013); European Research Council (ERC) University of Edinburgh University of Chicago NAS 5-26555 / NASA; National Aeronautics & Space Administration (NASA) ARCS (Acheivement Rewards for College Scholars) foundation U.S. Department of Energy; United States Department of Energy (DOE) Kavli Institute of Cosmological Physics at the University of Chicago Lawrence Berkeley National Laboratory; United States Department of Energy (DOE) Ministerio da Ciencia, Tecnologia e Inovacao; Spanish Government Ministry of Science and Education of Spain; Spanish Government
Identifiers: 9924552842901921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

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