Buchumschlag

The Dark Energy Survey : Detection of weak lensing magnification of supernovae and constraints on dark matter haloes

Fuente: arXiv

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Bibliographische Detailangaben
Hauptverfasser:	Shah, P., Davis, T. M., Bacon, D., Frieman, J., Galbany, L., Kessler, R., Lahav, O., Lee, J., Lidman, C., Nichol, R. C., Sako, M., Scolnic, D., Sullivan, M., Vincenzi, M., Wiseman, P., Allam, S., Abbott, T. M. C., Aguena, M., Alves, O., Andrade-Oliveira, F., Annis, J., Bechtol, K., Bertin, E., Bocquet, S., Brooks, D., Brout, D., Rosell, A. Carnero, Carretero, J., Castander, F. J., da Costa, L. N., Pereira, M. E. S., Diehl, H. T., Doel, P., Doux, C., Everett, S., Ferrero, I., Flaugher, B., Friedel, D., Gatti, M., Gruen, D., Gruendl, R. A., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kuehn, K., Lee, S., Marshall, J. L., Mena-Fernández, J., Miquel, R., Myles, J., Ogando, R. L. C., Palmese, A., Pieres, A., Roodman, A., Sanchez, E., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Weaverdyck, N.
Format:	Preprint
Veröffentlicht:	2024
Schlagworte:	Cosmology and Nongalactic Astrophysics
Online-Zugang:	Acceder al recurso
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_version_	1866914829574340608
author	Shah, P. Davis, T. M. Bacon, D. Frieman, J. Galbany, L. Kessler, R. Lahav, O. Lee, J. Lidman, C. Nichol, R. C. Sako, M. Scolnic, D. Sullivan, M. Vincenzi, M. Wiseman, P. Allam, S. Abbott, T. M. C. Aguena, M. Alves, O. Andrade-Oliveira, F. Annis, J. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Brout, D. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Friedel, D. Gatti, M. Gruen, D. Gruendl, R. A. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. James, D. J. Kuehn, K. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Myles, J. Ogando, R. L. C. Palmese, A. Pieres, A. Roodman, A. Sanchez, E. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Weaverdyck, N.
author_facet	Shah, P. Davis, T. M. Bacon, D. Frieman, J. Galbany, L. Kessler, R. Lahav, O. Lee, J. Lidman, C. Nichol, R. C. Sako, M. Scolnic, D. Sullivan, M. Vincenzi, M. Wiseman, P. Allam, S. Abbott, T. M. C. Aguena, M. Alves, O. Andrade-Oliveira, F. Annis, J. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Brout, D. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Friedel, D. Gatti, M. Gruen, D. Gruendl, R. A. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. James, D. J. Kuehn, K. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Myles, J. Ogando, R. L. C. Palmese, A. Pieres, A. Roodman, A. Sanchez, E. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Weaverdyck, N.
contents	The residuals of the distance moduli of Type Ia supernovae (SN Ia) relative to a Hubble diagram fit contain information about the inhomogeneity of the universe, due to weak lensing magnification by foreground matter. By correlating the residuals of the Dark Energy Survey Year 5 SN Ia sample (DES-SN5YR) with extra-galactic foregrounds from the DES Y3 Gold catalog, we detect the presence of lensing at $6.0 σ$ significance. This is the first detection with a significance level above $5σ$. Constraints on the effective mass-to-light ratios and radial profiles of dark-matter haloes surrounding individual galaxies are also obtained. We show that the scatter of SNe Ia around the Hubble diagram is reduced by modifying the standardisation of the distance moduli to include an easily calculable de-lensing (i.e., environmental) term. We use the de-lensed distance moduli to recompute cosmological parameters derived from SN Ia, finding in Flat $w$CDM a difference of $ΔΩ_{\rm M} = +0.036$ and $Δw = -0.056$ compared to the unmodified distance moduli, a change of $\sim 0.3σ$. We argue that our modelling of SN Ia lensing will lower systematics on future surveys with higher statistical power. We use the observed dispersion of lensing in DES-SN5YR to constrain $σ_8$, but caution that the fit is sensitive to uncertainties at small scales. Nevertheless, our detection of SN Ia lensing opens a new pathway to study matter inhomogeneity that complements galaxy-galaxy lensing surveys and has unrelated systematics.
format	Preprint
id	arxiv_https___arxiv_org_abs_2406_05047
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The Dark Energy Survey : Detection of weak lensing magnification of supernovae and constraints on dark matter haloes Shah, P. Davis, T. M. Bacon, D. Frieman, J. Galbany, L. Kessler, R. Lahav, O. Lee, J. Lidman, C. Nichol, R. C. Sako, M. Scolnic, D. Sullivan, M. Vincenzi, M. Wiseman, P. Allam, S. Abbott, T. M. C. Aguena, M. Alves, O. Andrade-Oliveira, F. Annis, J. Bechtol, K. Bertin, E. Bocquet, S. Brooks, D. Brout, D. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Friedel, D. Gatti, M. Gruen, D. Gruendl, R. A. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. Huterer, D. James, D. J. Kuehn, K. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Myles, J. Ogando, R. L. C. Palmese, A. Pieres, A. Roodman, A. Sanchez, E. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Weaverdyck, N. Cosmology and Nongalactic Astrophysics The residuals of the distance moduli of Type Ia supernovae (SN Ia) relative to a Hubble diagram fit contain information about the inhomogeneity of the universe, due to weak lensing magnification by foreground matter. By correlating the residuals of the Dark Energy Survey Year 5 SN Ia sample (DES-SN5YR) with extra-galactic foregrounds from the DES Y3 Gold catalog, we detect the presence of lensing at $6.0 σ$ significance. This is the first detection with a significance level above $5σ$. Constraints on the effective mass-to-light ratios and radial profiles of dark-matter haloes surrounding individual galaxies are also obtained. We show that the scatter of SNe Ia around the Hubble diagram is reduced by modifying the standardisation of the distance moduli to include an easily calculable de-lensing (i.e., environmental) term. We use the de-lensed distance moduli to recompute cosmological parameters derived from SN Ia, finding in Flat $w$CDM a difference of $ΔΩ_{\rm M} = +0.036$ and $Δw = -0.056$ compared to the unmodified distance moduli, a change of $\sim 0.3σ$. We argue that our modelling of SN Ia lensing will lower systematics on future surveys with higher statistical power. We use the observed dispersion of lensing in DES-SN5YR to constrain $σ_8$, but caution that the fit is sensitive to uncertainties at small scales. Nevertheless, our detection of SN Ia lensing opens a new pathway to study matter inhomogeneity that complements galaxy-galaxy lensing surveys and has unrelated systematics.
title	The Dark Energy Survey : Detection of weak lensing magnification of supernovae and constraints on dark matter haloes
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2406.05047