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Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models

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Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models. / Euclid Collaboration.
In: Astronomy and Astrophysics, Vol. 693, A249, 31.01.2025.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Euclid Collaboration 2025, 'Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models', Astronomy and Astrophysics, vol. 693, A249. https://doi.org/10.1051/0004-6361/202451611

APA

Euclid Collaboration (2025). Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models. Astronomy and Astrophysics, 693, Article A249. https://doi.org/10.1051/0004-6361/202451611

Vancouver

Euclid Collaboration. Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models. Astronomy and Astrophysics. 2025 Jan 31;693:A249. Epub 2025 Jan 22. doi: 10.1051/0004-6361/202451611

Author

Euclid Collaboration. / Euclid preparation : LVI. Sensitivity to non-standard particle dark matter models. In: Astronomy and Astrophysics. 2025 ; Vol. 693.

Bibtex

@article{8bcd4ae2d6aa40a59da5ebcc18bb4196,
title = "Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models",
abstract = "The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. We present forecasts from the combination of the Euclid weak lensing and photometric galaxy clustering data on the parameters describing four interesting and representative non-minimal dark matter models: a mixture of cold and warm dark matter relics; unstable dark matter decaying either into massless or massive relics; and dark matter undergoing feeble interactions with relativistic relics. We modelled these scenarios at the level of the non-linear matter power spectrum using emulators trained on dedicated N-body simulations. We used a mock Euclid likelihood and Monte Carlo Markov chains to fit mock data and infer error bars on dark matter parameters marginalised over other parameters. We find that the Euclid photometric probe (alone or in combination with cosmic microwave background data from the Planck satellite) will be sensitive to the effect of each of the four dark matter models considered here. The improvement will be particularly spectacular for decaying and interacting dark matter models. With Euclid, the bounds on some dark matter parameters can improve by up to two orders of magnitude compared to current limits. We discuss the dependence of predicted uncertainties on different assumptions: the inclusion of photometric galaxy clustering data, the minimum angular scale taken into account, and modelling of baryonic feedback effects. We conclude that the Euclid mission will be able to measure quantities related to the dark sector of particle physics with unprecedented sensitivity. This will provide important information for model building in high-energy physics. Any hint of a deviation from the minimal cold dark matter paradigm would have profound implications for cosmology and particle physics.",
author = "{Euclid Collaboration} and J. Lesgourgues and J. Schwagereit and J. Bucko and G. Parimbelli and Giri, {S. K.} and F. Hervas-Peters and A. Schneider and M. Archidiacono and F. Pace and Z. Sakr and A. Amara and L. Amendola and S. Andreon and N. Auricchio and H. Aussel and M. Baldi and S. Bardelli and R. Bender and C. Bodendorf and D. Bonino and E. Branchini and M. Brescia and J. Brinchmann and S. Camera and V. Capobianco and C. Carbone and Cardone, {V. F.} and J. Carretero and S. Casas and M. Castellano and S. Cavuoti and A. Cimatti and G. Congedo and Conselice, {C. J.} and L. Conversi and Y. Copin and F. Courbin and Courtois, {H. M.} and {Da Silva}, A. and H. Degaudenzi and {Di Giorgio}, {A. M.} and M. Douspis and F. Dubath and X. Dupac and I. Hook and Y. Wang and J. Weller and Ferrari, {A. G.} and D. Potter and C. Tao",
year = "2025",
month = jan,
day = "31",
doi = "10.1051/0004-6361/202451611",
language = "English",
volume = "693",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Euclid preparation

T2 - LVI. Sensitivity to non-standard particle dark matter models

AU - Euclid Collaboration

AU - Lesgourgues, J.

AU - Schwagereit, J.

AU - Bucko, J.

AU - Parimbelli, G.

AU - Giri, S. K.

AU - Hervas-Peters, F.

AU - Schneider, A.

AU - Archidiacono, M.

AU - Pace, F.

AU - Sakr, Z.

AU - Amara, A.

AU - Amendola, L.

AU - Andreon, S.

AU - Auricchio, N.

AU - Aussel, H.

AU - Baldi, M.

AU - Bardelli, S.

AU - Bender, R.

AU - Bodendorf, C.

AU - Bonino, D.

AU - Branchini, E.

AU - Brescia, M.

AU - Brinchmann, J.

AU - Camera, S.

AU - Capobianco, V.

AU - Carbone, C.

AU - Cardone, V. F.

AU - Carretero, J.

AU - Casas, S.

AU - Castellano, M.

AU - Cavuoti, S.

AU - Cimatti, A.

AU - Congedo, G.

AU - Conselice, C. J.

AU - Conversi, L.

AU - Copin, Y.

AU - Courbin, F.

AU - Courtois, H. M.

AU - Da Silva, A.

AU - Degaudenzi, H.

AU - Di Giorgio, A. M.

AU - Douspis, M.

AU - Dubath, F.

AU - Dupac, X.

AU - Hook, I.

AU - Wang, Y.

AU - Weller, J.

AU - Ferrari, A. G.

AU - Potter, D.

AU - Tao, C.

PY - 2025/1/31

Y1 - 2025/1/31

N2 - The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. We present forecasts from the combination of the Euclid weak lensing and photometric galaxy clustering data on the parameters describing four interesting and representative non-minimal dark matter models: a mixture of cold and warm dark matter relics; unstable dark matter decaying either into massless or massive relics; and dark matter undergoing feeble interactions with relativistic relics. We modelled these scenarios at the level of the non-linear matter power spectrum using emulators trained on dedicated N-body simulations. We used a mock Euclid likelihood and Monte Carlo Markov chains to fit mock data and infer error bars on dark matter parameters marginalised over other parameters. We find that the Euclid photometric probe (alone or in combination with cosmic microwave background data from the Planck satellite) will be sensitive to the effect of each of the four dark matter models considered here. The improvement will be particularly spectacular for decaying and interacting dark matter models. With Euclid, the bounds on some dark matter parameters can improve by up to two orders of magnitude compared to current limits. We discuss the dependence of predicted uncertainties on different assumptions: the inclusion of photometric galaxy clustering data, the minimum angular scale taken into account, and modelling of baryonic feedback effects. We conclude that the Euclid mission will be able to measure quantities related to the dark sector of particle physics with unprecedented sensitivity. This will provide important information for model building in high-energy physics. Any hint of a deviation from the minimal cold dark matter paradigm would have profound implications for cosmology and particle physics.

AB - The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. We present forecasts from the combination of the Euclid weak lensing and photometric galaxy clustering data on the parameters describing four interesting and representative non-minimal dark matter models: a mixture of cold and warm dark matter relics; unstable dark matter decaying either into massless or massive relics; and dark matter undergoing feeble interactions with relativistic relics. We modelled these scenarios at the level of the non-linear matter power spectrum using emulators trained on dedicated N-body simulations. We used a mock Euclid likelihood and Monte Carlo Markov chains to fit mock data and infer error bars on dark matter parameters marginalised over other parameters. We find that the Euclid photometric probe (alone or in combination with cosmic microwave background data from the Planck satellite) will be sensitive to the effect of each of the four dark matter models considered here. The improvement will be particularly spectacular for decaying and interacting dark matter models. With Euclid, the bounds on some dark matter parameters can improve by up to two orders of magnitude compared to current limits. We discuss the dependence of predicted uncertainties on different assumptions: the inclusion of photometric galaxy clustering data, the minimum angular scale taken into account, and modelling of baryonic feedback effects. We conclude that the Euclid mission will be able to measure quantities related to the dark sector of particle physics with unprecedented sensitivity. This will provide important information for model building in high-energy physics. Any hint of a deviation from the minimal cold dark matter paradigm would have profound implications for cosmology and particle physics.

U2 - 10.1051/0004-6361/202451611

DO - 10.1051/0004-6361/202451611

M3 - Journal article

VL - 693

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A249

ER -