Weak lensing of Type Ia Supernovae from the Dark Energy Survey

E. Macaulay; D. Bacon; R. C. Nichol; T. M. Davis; J. Elvin-Poole; D. Brout; D. Carollo; K. Glazebrook; S. R. Hinton; G. F. Lewis; C. Lidman; A. Möller; M. Sako; D. Scolnic; M. Smith; N. E. Sommer; B. E. Tucker; T. M.C. Abbott; M. Aguena; J. Annis; S. Avila; E. Bertin; S. Bhargava; D. Brooks; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; M. Costanzi; L. N.D. Da Costa; S. Desai; H. T. Diehl; P. Doel; B. Flaugher; R. J. Foley; J. García-Bellido; E. Gaztanaga; D. W. Gerdes; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. L. Hollowood; K. Honscheid; D. Huterer; D. J. James; K. Kuehn; N. Kuropatkin; O. Lahav

doi:10.1093/MNRAS/STAA1852

Weak lensing of Type Ia Supernovae from the Dark Energy Survey

E. Macaulay^*
, D. Bacon
, R. C. Nichol
, T. M. Davis
, J. Elvin-Poole
, D. Brout
, D. Carollo
, K. Glazebrook
, S. R. Hinton
, G. F. Lewis
, C. Lidman
, A. Möller
, M. Sako
, D. Scolnic
, M. Smith
, N. E. Sommer
, B. E. Tucker
, T. M.C. Abbott
, M. Aguena
, J. Annis

S. Avila, E. Bertin, S. Bhargava, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, M. Costanzi, L. N.D. Da Costa, S. Desai, H. T. Diehl, P. Doel, B. Flaugher, R. J. Foley, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, D. Huterer, D. J. James, K. Kuehn, N. Kuropatkin, O. Lahav

^*Corresponding author for this work

Research School of Astronomy & Astrophysics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We consider the effects of weak gravitational lensing on observations of 196 spectroscopically confirmed Type Ia Supernovae (SNe Ia) from years 1 to 3 of the Dark Energy Survey (DES).We simultaneously measure both the angular correlation function and the non-Gaussian skewness caused by weak lensing. This approach has the advantage of being insensitive to the intrinsic dispersion of SNe Ia magnitudes. We model the amplitude of both effects as a function of σ8, and find σ8 =1.2+0.9-0.8. We also apply our method to a subsample of 488 SNe from the Joint Light-curve Analysis (JLA; chosen to match the redshift range we use for this work), and find σ8 =0.8+1.1-0.7. The comparable uncertainty in σ8 between DES-SN and the larger number of SNe from JLA highlights the benefits of homogeneity of the DES-SN sample, and improvements in the calibration and data analysis.

Original language	English
Pages (from-to)	4051-4059
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	496
Issue number	3
Early online date	29 Jun 2020
DOIs	https://doi.org/10.1093/MNRAS/STAA1852
Publication status	Published - Aug 2020

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10.1093/MNRAS/STAA1852

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Macaulay, E., Bacon, D., Nichol, R. C., Davis, T. M., Elvin-Poole, J., Brout, D., Carollo, D., Glazebrook, K., Hinton, S. R., Lewis, G. F., Lidman, C., Möller, A., Sako, M., Scolnic, D., Smith, M., Sommer, N. E., Tucker, B. E., Abbott, T. M. C., Aguena, M., ... Lahav, O. (2020). Weak lensing of Type Ia Supernovae from the Dark Energy Survey. Monthly Notices of the Royal Astronomical Society, 496(3), 4051-4059. https://doi.org/10.1093/MNRAS/STAA1852

@article{cb97aceb2ef74c3087fc175285246e91,

title = "Weak lensing of Type Ia Supernovae from the Dark Energy Survey",

abstract = "We consider the effects of weak gravitational lensing on observations of 196 spectroscopically confirmed Type Ia Supernovae (SNe Ia) from years 1 to 3 of the Dark Energy Survey (DES).We simultaneously measure both the angular correlation function and the non-Gaussian skewness caused by weak lensing. This approach has the advantage of being insensitive to the intrinsic dispersion of SNe Ia magnitudes. We model the amplitude of both effects as a function of σ8, and find σ8 =1.2+0.9-0.8. We also apply our method to a subsample of 488 SNe from the Joint Light-curve Analysis (JLA; chosen to match the redshift range we use for this work), and find σ8 =0.8+1.1-0.7. The comparable uncertainty in σ8 between DES-SN and the larger number of SNe from JLA highlights the benefits of homogeneity of the DES-SN sample, and improvements in the calibration and data analysis.",

keywords = "Cosmological parameters, Cosmology: Observations, Large-scale structure of the universe",

author = "E. Macaulay and D. Bacon and Nichol, \{R. C.\} and Davis, \{T. M.\} and J. Elvin-Poole and D. Brout and D. Carollo and K. Glazebrook and Hinton, \{S. R.\} and Lewis, \{G. F.\} and C. Lidman and A. M{\"o}ller and M. Sako and D. Scolnic and M. Smith and Sommer, \{N. E.\} and Tucker, \{B. E.\} and Abbott, \{T. M.C.\} and M. Aguena and J. Annis and S. Avila and E. Bertin and S. Bhargava and D. Brooks and Burke, \{D. L.\} and Rosell, \{A. Carnero\} and Kind, \{M. Carrasco\} and J. Carretero and Castander, \{F. J.\} and M. Costanzi and \{Da Costa\}, \{L. N.D.\} and S. Desai and Diehl, \{H. T.\} and P. Doel and B. Flaugher and Foley, \{R. J.\} and J. Garc{\'i}a-Bellido and E. Gaztanaga and Gerdes, \{D. W.\} and D. Gruen and Gruendl, \{R. A.\} and J. Gschwend and G. Gutierrez and Hollowood, \{D. L.\} and K. Honscheid and D. Huterer and James, \{D. J.\} and K. Kuehn and N. Kuropatkin and O. Lahav",

year = "2020",

month = aug,

doi = "10.1093/MNRAS/STAA1852",

language = "English",

volume = "496",

pages = "4051--4059",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press ",

number = "3",

}

Macaulay, E, Bacon, D, Nichol, RC, Davis, TM, Elvin-Poole, J, Brout, D, Carollo, D, Glazebrook, K, Hinton, SR, Lewis, GF, Lidman, C, Möller, A, Sako, M, Scolnic, D, Smith, M, Sommer, NE, Tucker, BE, Abbott, TMC, Aguena, M, Annis, J, Avila, S, Bertin, E, Bhargava, S, Brooks, D, Burke, DL, Rosell, AC, Kind, MC, Carretero, J, Castander, FJ, Costanzi, M, Da Costa, LND, Desai, S, Diehl, HT, Doel, P, Flaugher, B, Foley, RJ, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hollowood, DL, Honscheid, K, Huterer, D, James, DJ, Kuehn, K, Kuropatkin, N & Lahav, O 2020, 'Weak lensing of Type Ia Supernovae from the Dark Energy Survey', Monthly Notices of the Royal Astronomical Society, vol. 496, no. 3, pp. 4051-4059. https://doi.org/10.1093/MNRAS/STAA1852

TY - JOUR

T1 - Weak lensing of Type Ia Supernovae from the Dark Energy Survey

AU - Macaulay, E.

AU - Bacon, D.

AU - Nichol, R. C.

AU - Davis, T. M.

AU - Elvin-Poole, J.

AU - Brout, D.

AU - Carollo, D.

AU - Glazebrook, K.

AU - Hinton, S. R.

AU - Lewis, G. F.

AU - Lidman, C.

AU - Möller, A.

AU - Sako, M.

AU - Scolnic, D.

AU - Smith, M.

AU - Sommer, N. E.

AU - Tucker, B. E.

AU - Abbott, T. M.C.

AU - Aguena, M.

AU - Annis, J.

AU - Avila, S.

AU - Bertin, E.

AU - Bhargava, S.

AU - Brooks, D.

AU - Burke, D. L.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Castander, F. J.

AU - Costanzi, M.

AU - Da Costa, L. N.D.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Flaugher, B.

AU - Foley, R. J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - Huterer, D.

AU - James, D. J.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lahav, O.

PY - 2020/8

Y1 - 2020/8

N2 - We consider the effects of weak gravitational lensing on observations of 196 spectroscopically confirmed Type Ia Supernovae (SNe Ia) from years 1 to 3 of the Dark Energy Survey (DES).We simultaneously measure both the angular correlation function and the non-Gaussian skewness caused by weak lensing. This approach has the advantage of being insensitive to the intrinsic dispersion of SNe Ia magnitudes. We model the amplitude of both effects as a function of σ8, and find σ8 =1.2+0.9-0.8. We also apply our method to a subsample of 488 SNe from the Joint Light-curve Analysis (JLA; chosen to match the redshift range we use for this work), and find σ8 =0.8+1.1-0.7. The comparable uncertainty in σ8 between DES-SN and the larger number of SNe from JLA highlights the benefits of homogeneity of the DES-SN sample, and improvements in the calibration and data analysis.

AB - We consider the effects of weak gravitational lensing on observations of 196 spectroscopically confirmed Type Ia Supernovae (SNe Ia) from years 1 to 3 of the Dark Energy Survey (DES).We simultaneously measure both the angular correlation function and the non-Gaussian skewness caused by weak lensing. This approach has the advantage of being insensitive to the intrinsic dispersion of SNe Ia magnitudes. We model the amplitude of both effects as a function of σ8, and find σ8 =1.2+0.9-0.8. We also apply our method to a subsample of 488 SNe from the Joint Light-curve Analysis (JLA; chosen to match the redshift range we use for this work), and find σ8 =0.8+1.1-0.7. The comparable uncertainty in σ8 between DES-SN and the larger number of SNe from JLA highlights the benefits of homogeneity of the DES-SN sample, and improvements in the calibration and data analysis.

KW - Cosmological parameters

KW - Cosmology: Observations

KW - Large-scale structure of the universe

UR - https://www.scopus.com/pages/publications/85097816840

U2 - 10.1093/MNRAS/STAA1852

DO - 10.1093/MNRAS/STAA1852

M3 - Article

SN - 0035-8711

VL - 496

SP - 4051

EP - 4059

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Weak lensing of Type Ia Supernovae from the Dark Energy Survey

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