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Shah, P, Davis, TM, Vincenzi, M, Armstrong, P, Brout, D, Camilleri, R, Galbany, L, Gill, MSS, Huterer, D, Jeffrey, N, Lahav, O, Lee, J, Lidman, C, Möller, A, Sullivan, M, Whiteway, L, Wiseman, P, Allam, S, Aguena, M, Annis, J, Blazek, J, Brooks, D, Rosell, AC, Carretero, J, Conselice, C, da Costa, LN, Pereira, MES, Desai, S, Diehl, HT, Doel, P, Everett, S, Ferrero, I, Flaugher, B, Frieman, J, García-Bellido, J, Gaztanaga, E, Giannini, G, Gruen, D, Gruendl, RA, Gutierrez, G, Hinton, SR, Hollowood, DL, Honscheid, K, James, DJ, Lee, S, Marshall, JL, Mena-Fernández, J, Miquel, R, Palmese, A, Pieres, A, Malagón, AAP, Porredon, A, Samuroff, S, Sanchez, E, Sevilla-Noarbe, I
, Smith, M, Suchyta, E, Swanson, MEC, Tarle, G, Tucker, DL, Weaverdyck, N, Casas, R, Challis, P, Childress, M, Covarrubias, R, D'Andrea, C, Filippenko, A, Finley, D, Fisher, J, Förster, F, Goldstein, D, González-Gaitán, S, Gupta, R, Hamuy, M, Kuhlmann, S, Lasker, J, March, M, Marriner, J, Morganson, E, Mosher, J, Swann, E, Thomas, R & Wolf, R 2025, '
It is not σ8: constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sample',
Monthly Notices of the Royal Astronomical Society, vol. 537, no. 4, pp. 3814-3825.
https://doi.org/10.1093/mnras/staf286APA
Shah, P., Davis, T. M., Vincenzi, M., Armstrong, P., Brout, D., Camilleri, R., Galbany, L., Gill, M. S. S., Huterer, D., Jeffrey, N., Lahav, O., Lee, J., Lidman, C., Möller, A., Sullivan, M., Whiteway, L., Wiseman, P., Allam, S., Aguena, M., ... Wolf, R. (2025).
It is not σ8: constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sample.
Monthly Notices of the Royal Astronomical Society,
537(4), 3814-3825.
https://doi.org/10.1093/mnras/staf286Vancouver
Author
Bibtex
@article{cbe410ac9d2e49e78aeb11a54944f45f,
title = "It is not σ8: constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sample",
abstract = "The weak gravitational lensing magnification of Type Ia supernovae (SNe Ia) is sensitive to the matter power spectrum on scales k > 1h Mpc −1, making it unwise to interpret SNe Ia lensing in terms of power on linear scales. We compute the probability density function of SNe Ia magnification as a function of standard cosmological parameters, plus an empirical parameter A mod which describes the suppression or enhancement of matter power on non-linear scales compared to a cold dark matter only model. While baryons are expected to enhance power on the scales relevant to SN Ia lensing, other physics such as neutrino masses or non-standard dark matter may suppress power. Using the Dark Energy Survey Year-5 sample, we find A mod = 0.77 + −0 0 . 40 69 (68 per cent credible interval around the median). Although the median is consistent with unity there are hints of power suppression, with A mod < 1.09 at 68 per cent credibility.",
author = "P Shah and Davis, {T M} and M Vincenzi and P Armstrong and D Brout and R Camilleri and L Galbany and Gill, {M S S} and D Huterer and N Jeffrey and O Lahav and J Lee and C Lidman and A M{\"o}ller and M Sullivan and L Whiteway and P Wiseman and S Allam and M Aguena and J Annis and J Blazek and D Brooks and Rosell, {A Carnero} and J Carretero and C Conselice and da Costa, {L N} and Pereira, {M E S} and S Desai and Diehl, {H T} and P Doel and S Everett and I Ferrero and B Flaugher and J Frieman and J Garc{\'i}a-Bellido and E Gaztanaga and G Giannini and D Gruen and Gruendl, {R A} and G Gutierrez and Hinton, {S R} and Hollowood, {D L} and K Honscheid and James, {D J} and S Lee and Marshall, {J L} and J Mena-Fern{\'a}ndez and R Miquel and A Palmese and A Pieres and Malag{\'o}n, {A A Plazas} and A Porredon and S Samuroff and E Sanchez and I Sevilla-Noarbe and M Smith and E Suchyta and Swanson, {M E C} and G Tarle and Tucker, {D L} and N Weaverdyck and Ricard Casas and Pete Challis and Michael Childress and Ricardo Covarrubias and Chris D'Andrea and Alex Filippenko and David Finley and John Fisher and Francisco F{\"o}rster and Daniel Goldstein and Santiago Gonz{\'a}lez-Gait{\'a}n and Ravi Gupta and Mario Hamuy and Steve Kuhlmann and James Lasker and Marisa March and John Marriner and Eric Morganson and Jennifer Mosher and Elizabeth Swann and Rollin Thomas and Rachel Wolf",
year = "2025",
month = mar,
day = "31",
doi = "10.1093/mnras/staf286",
language = "English",
volume = "537",
pages = "3814--3825",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "4",
}
RIS
TY - JOUR
T1 - It is not σ8
T2 - constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sample
AU - Shah, P
AU - Davis, T M
AU - Vincenzi, M
AU - Armstrong, P
AU - Brout, D
AU - Camilleri, R
AU - Galbany, L
AU - Gill, M S S
AU - Huterer, D
AU - Jeffrey, N
AU - Lahav, O
AU - Lee, J
AU - Lidman, C
AU - Möller, A
AU - Sullivan, M
AU - Whiteway, L
AU - Wiseman, P
AU - Allam, S
AU - Aguena, M
AU - Annis, J
AU - Blazek, J
AU - Brooks, D
AU - Rosell, A Carnero
AU - Carretero, J
AU - Conselice, C
AU - da Costa, L N
AU - Pereira, M E S
AU - Desai, S
AU - Diehl, H T
AU - Doel, P
AU - Everett, S
AU - Ferrero, I
AU - Flaugher, B
AU - Frieman, J
AU - García-Bellido, J
AU - Gaztanaga, E
AU - Giannini, G
AU - Gruen, D
AU - Gruendl, R A
AU - Gutierrez, G
AU - Hinton, S R
AU - Hollowood, D L
AU - Honscheid, K
AU - James, D J
AU - Lee, S
AU - Marshall, J L
AU - Mena-Fernández, J
AU - Miquel, R
AU - Palmese, A
AU - Pieres, A
AU - Malagón, A A Plazas
AU - Porredon, A
AU - Samuroff, S
AU - Sanchez, E
AU - Sevilla-Noarbe, I
AU - Smith, M
AU - Suchyta, E
AU - Swanson, M E C
AU - Tarle, G
AU - Tucker, D L
AU - Weaverdyck, N
AU - Casas, Ricard
AU - Challis, Pete
AU - Childress, Michael
AU - Covarrubias, Ricardo
AU - D'Andrea, Chris
AU - Filippenko, Alex
AU - Finley, David
AU - Fisher, John
AU - Förster, Francisco
AU - Goldstein, Daniel
AU - González-Gaitán, Santiago
AU - Gupta, Ravi
AU - Hamuy, Mario
AU - Kuhlmann, Steve
AU - Lasker, James
AU - March, Marisa
AU - Marriner, John
AU - Morganson, Eric
AU - Mosher, Jennifer
AU - Swann, Elizabeth
AU - Thomas, Rollin
AU - Wolf, Rachel
PY - 2025/3/31
Y1 - 2025/3/31
N2 - The weak gravitational lensing magnification of Type Ia supernovae (SNe Ia) is sensitive to the matter power spectrum on scales k > 1h Mpc −1, making it unwise to interpret SNe Ia lensing in terms of power on linear scales. We compute the probability density function of SNe Ia magnification as a function of standard cosmological parameters, plus an empirical parameter A mod which describes the suppression or enhancement of matter power on non-linear scales compared to a cold dark matter only model. While baryons are expected to enhance power on the scales relevant to SN Ia lensing, other physics such as neutrino masses or non-standard dark matter may suppress power. Using the Dark Energy Survey Year-5 sample, we find A mod = 0.77 + −0 0 . 40 69 (68 per cent credible interval around the median). Although the median is consistent with unity there are hints of power suppression, with A mod < 1.09 at 68 per cent credibility.
AB - The weak gravitational lensing magnification of Type Ia supernovae (SNe Ia) is sensitive to the matter power spectrum on scales k > 1h Mpc −1, making it unwise to interpret SNe Ia lensing in terms of power on linear scales. We compute the probability density function of SNe Ia magnification as a function of standard cosmological parameters, plus an empirical parameter A mod which describes the suppression or enhancement of matter power on non-linear scales compared to a cold dark matter only model. While baryons are expected to enhance power on the scales relevant to SN Ia lensing, other physics such as neutrino masses or non-standard dark matter may suppress power. Using the Dark Energy Survey Year-5 sample, we find A mod = 0.77 + −0 0 . 40 69 (68 per cent credible interval around the median). Although the median is consistent with unity there are hints of power suppression, with A mod < 1.09 at 68 per cent credibility.
U2 - 10.1093/mnras/staf286
DO - 10.1093/mnras/staf286
M3 - Journal article
VL - 537
SP - 3814
EP - 3825
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 4
ER -
