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1. Euclid: Forecasts for k-cut 3×2 Point Statistics

Author

Richard Massey, Knud Jahnke, Harry Teplitz, J. Carretero, R. P. Saglia, Domenico Sapone, I. Lloro, Natalia Auricchio, M. Martinelli, Massimo Brescia, B. Garilli, F. Raison, Carmelita Carbone, Yu Wang, P. Tallada Crespí, Jochen Weller, Stefano Camera, L. Moscardini, S. Kermiche, Leonardo Corcione, Daniele Tavagnacco, B. Gillis, Stein Vidar Hagfors Haugan, B. Morin, Ole Marggraf, C. Giocoli, Edwin A. Valentijn, G. Sirri, I. Tutusaus, Stefano Cavuoti, S. Casas, K. Pedersen, S. Pires, W. A. Holmes, V. Yankelevich, A. Boucaud, V. Capobianco, S. Paltani, L. Conversi, C. Bodendorf, T. Kitching, G. Polenta, L. Popa, R. Cledassou, M. Poncet, T. Vassallo, A. Zacchei, M. Kilbinger, A. Balestra, Andy Taylor, Will J. Percival, E. Branchini, M. Castellano, V. Pettorino, Mauro Roncarelli, Luigi Guzzo, Massimo Meneghetti, Agnès Ferté, F. Bernardeau, E. M. Huff, G. Congedo, A. Secroun, Mark Cropper, K. Markovic, G. Seidel, Ismael Tereno, A. Cimatti, G. Meylan, S. Niemi, Felix Hormuth, F. Sureau, Sebastiano Ligori, Michele Moresco, P. B. Lilje, Simona Mei, Hannu Kurki-Suonio, S. Serrano, V. F. Cardone, Emanuel Rossetti, C. Padilla, A. C. Deshpande, Julien Zoubian, E. Franceschi, Alkistis Pourtsidou, Jason Rhodes, E. Medinaceli, Rafael Toledo-Moreo, Luca Valenziano, Peter Taylor, D. Bonino, Chiara Sirignano, M. Kunz, Z. Sakr, Peter Schneider, Fabio Pasian, Taylor, Peter L., Kitching, T., Cardone, V. F., Ferté, A., Huff, E. M., Bernardeau, F., Rhodes, J., Deshpande, A. C., Tutusaus, I., Pourtsidou, Alkisti, Camera, S., Carbone, C., Casas, S., Martinelli, M., Pettorino, V., Sakr, Z., Sapone, D., Yankelevich, V., Auricchio, N., Balestra, A., Bodendorf, C., Bonino, D., Boucaud, A., Branchini, Enzo, Brescia, M., Capobianco, V., Carretero, J., Castellano, M., Cavuoti, S., Cimatti, A., Cledassou, R., Congedo, G., Conversi, L., Corcione, L., Cropper, Mark, Franceschi, E., Garilli, B., Gillis, B., Giocoli, C., Guzzo, L., Haugan, S. V. H., Holmes, W., Hormuth, F., Jahnke, Knud, Kermiche, S., Kilbinger, M., Kunz, M., Kurki-Suonio, H., Ligori, S., Lilje, Per B., Lloro, I., Marggraf, O., Markovic, K., Massey, R., Mei, S., Medinaceli, E., Meneghetti, M., Meylan, G., Moresco, M., Morin, B., Moscardini, Lauro, Niemi, S., Padilla, C., Pasian, F., Paltani, S., Pedersen, K., Pires, S., Percival, Will J., Polenta, G., Poncet, M., Popa, L., Raison, F., Roncarelli, M., Rossetti, E., Saglia, R., Schneider, Peter, Secroun, A., Seidel, G., Serrano, S., Sirignano, C., Sirri, G., Sureau, F., Crespí, P. Tallada, Tavagnacco, D., Taylor, A. N., Teplitz, H. I., Tereno, I., Toledo-Moreo, R., Valentijn, E. A., Valenziano, L., Vassallo, T., Wang, Yun, Weller, Jochen, Zacchei, A., and Zoubian, J.

Subjects
Physics, Spectral density, Astrophysics::Cosmology and Extragalactic Astrophysics, Galaxy, Baryon, Statistics, Dark energy, astro-ph.CO, Matrix analysis, Sensitivity (control systems), Cluster analysis, Weak gravitational lensing, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Modelling uncertainties at small scales, i.e. high $k$ in the power spectrum $P(k)$, due to baryonic feedback, nonlinear structure growth and the fact that galaxies are biased tracers poses a significant obstacle to fully leverage the constraining power of the {\it Euclid} wide-field survey. $k$-cut cosmic shear has recently been proposed as a method to optimally remove sensitivity to these scales while preserving usable information. In this paper we generalise the $k$-cut cosmic shear formalism to $3 \times 2$ point statistics and estimate the loss of information for different $k$-cuts in a $3 \times 2$ point analysis of the {\it Euclid} data. Extending the Fisher matrix analysis of~\citet{blanchard2019euclid}, we assess the degradation in constraining power for different $k$-cuts. We work in the idealised case and assume the galaxy bias is linear, the covariance is Gaussian, while neglecting uncertainties due to photo-z errors and baryonic feedback. We find that taking a $k$-cut at $2.6 \ h \ {\rm Mpc} ^{-1}$ yields a dark energy Figure of Merit (FOM) of 1018. This is comparable to taking a weak lensing cut at $\ell = 5000$ and a galaxy clustering and galaxy-galaxy lensing cut at $\ell = 3000$ in a traditional $3 \times 2$ point analysis. We also find that the fraction of the observed galaxies used in the photometric clustering part of the analysis is one of the main drivers of the FOM. Removing $50 \% \ (90 \%)$ of the clustering galaxies decreases the FOM by $19 \% \ (62 \%)$. Given that the FOM depends so heavily on the fraction of galaxies used in the clustering analysis, extensive efforts should be made to handle the real-world systematics present when extending the analysis beyond the luminous red galaxy (LRG) sample....

Published
2021
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2. Euclid: The importance of galaxy clustering and weak lensing cross-correlations within the photometric Euclid survey

Author

Felix Hormuth, M. Martinelli, Simona Mei, M. Kilbinger, B. Garilli, S. Kermiche, Andrea Zacchei, Sandrine Pires, G. Congedo, A. Mangilli, Massimo Brescia, Richard Massey, Knud Jahnke, Rafael Toledo-Moreo, B. Kubik, Natalia Auricchio, Stefano Cavuoti, S. Paltani, Emiliano Merlin, R. Cledassou, V. Yankelevich, Luigi Guzzo, P. Ntelis, H. Israel, K. Markovic, M. Frailis, F. Dournac, Lauro Moscardini, Ole Marggraf, Giulio Fabbian, F. Dubath, E. Franceschi, S. Yahia-Cherif, Roberto P. Saglia, Ralf Bender, Jason Rhodes, L. Conversi, Z. Sakr, Luca Valenziano, D. Bonino, Mauro Roncarelli, Jochen Weller, A. Secroun, F. J. Castander, Alain Blanchard, Peter Schneider, Mark Cropper, F Lacasa, Ismael Tereno, Andy Taylor, Yu Wang, Marco Castellano, Henk Hoekstra, Emanuel Rossetti, C. Padilla, Stefano Camera, Elisabetta Maiorano, Will J. Percival, Martin Crocce, P. B. Lilje, Fabio Pasian, V. Capobianco, Isaac Tutusaus, N. Welikala, Thomas D. Kitching, Valeria Pettorino, Jean-Luc Starck, Carmelita Carbone, G. Sirri, Julien Zoubian, Pablo Fosalba, Chiara Sirignano, S. Ilić, V. F. Cardone, S. Dusini, René J. Laureijs, S. Serrano, F. Sureau, Sebastiano Ligori, Leonardo Corcione, A. Boucaud, F. Raison, G. Meylan, Domenico Sapone, I. Lloro, Martin Kunz, S. Casas, Frank Grupp, J. Carretero, M. Poncet, Anne Costille, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Département d'Astrophysique (ex SAP) (DAP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), EUCLID, Tutusaus, I., Martinelli, M., Cardone, V. F., Camera, S., Yahia-Cherif, S., Casas, S., Blanchard, A., Kilbinger, M., Lacasa, F., Sakr, Z., Ilic, S., Kunz, M., Carbone, C., Castander, F. J., Dournac, F., Fosalba, P., Kitching, T., Markovic, K., Mangilli, A., Pettorino, V., Sapone, D., Yankelevich, V., Auricchio, N., Bender, R., Bonino, D., Boucaud, A., Brescia, M., Capobianco, V., Carretero, J., Castellano, M., Cavuoti, S., Cledassou, R., Congedo, G., Conversi, L., Corcione, L., Costille, A., Crocce, M., Cropper, M., Dubath, F., Dusini, S., Fabbian, G., Frailis, M., Franceschi, E., Garilli, B., Grupp, F., Guzzo, L., Hoekstra, H., Hormuth, F., Israel, H., Jahnke, K., Kermiche, S., Kubik, B., Laureijs, R., Ligori, S., Lilje, P. B., Lloro, I., Maiorano, E., Marggraf, O., Massey, R., Mei, S., Merlin, E., Meylan, G., Moscardini, L., Ntelis, P., Padilla, C., Paltani, S., Pasian, F., Percival, W. J., Pires, S., Poncet, M., Raison, F., Rhodes, J., Roncarelli, M., Rossetti, E., Saglia, R., Schneider, P., Secroun, A., Serrano, S., Sirignano, C., Sirri, G., Starck, J., Sureau, F., Taylor, A. N., Tereno, I., Toledo-Moreo, R., Valenziano, L., Wang, Y., Welikala, N., Weller, J., Zacchei, A., Zoubian, J., Tutusaus I., Martinelli M., Cardone V.F., Camera S., Yahia-Cherif S., Casas S., Blanchard A., Kilbinger M., Lacasa F., Sakr Z., Ilic S., Kunz M., Carbone C., Castander F.J., Dournac F., Fosalba P., Kitching T., Markovic K., Mangilli A., Pettorino V., Sapone D., Yankelevich V., Auricchio N., Bender R., Bonino D., Boucaud A., Brescia M., Capobianco V., Carretero J., Castellano M., Cavuoti S., Cledassou R., Congedo G., Conversi L., Corcione L., Costille A., Crocce M., Cropper M., Dubath F., Dusini S., Fabbian G., Frailis M., Franceschi E., Garilli B., Grupp F., Guzzo L., Hoekstra H., Hormuth F., Israel H., Jahnke K., Kermiche S., Kubik B., Laureijs R., Ligori S., Lilje P.B., Lloro I., Maiorano E., Marggraf O., Massey R., Mei S., Merlin E., Meylan G., Moscardini L., Ntelis P., Padilla C., Paltani S., Pasian F., Percival W.J., Pires S., Poncet M., Raison F., Rhodes J., Roncarelli M., Rossetti E., Saglia R., Schneider P., Secroun A., Serrano S., Sirignano C., Sirri G., Starck J., Sureau F., Taylor A.N., Tereno I., Toledo-Moreo R., Valenziano L., Wang Y., Welikala N., Weller J., Zacchei A., Zoubian J., Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Agencia Estatal de Investigación (España), Ministero dell'Istruzione, dell'Università e della Ricerca, Academy of Finland, Agenzia Spaziale Italiana, Belgian Science Policy Office, Canadian Euclid Consortium, German Centre for Air and Space Travel, Danish Space Research Institute, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Economía y Competitividad (España), National Aeronautics and Space Administration (US), Romanian Space Agency, Netherlands Research School for Astronomy, Norwegian Space Agency, State Secretariat for Education, Research and Innovation (Switzerland), UK Space Agency, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Cosmological parameter, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Large-scale structure of Universe, Cosmological parameters, Library science, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, gravitational lensing: weak, 0103 physical sciences, European commission, Gravitational lensing: weak, cosmological parameters, 10. No inequality, 010303 astronomy & astrophysics, Weak gravitational lensing, Physics, 010308 nuclear & particles physics, European research, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Galaxy, Space and Planetary Science, astro-ph.CO, Christian ministry, large-scale structure of Universe, weak [Gravitational lensing], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

[Context]The data from the Euclid mission will enable the measurement of the angular positions and weak lensing shapes of over a billion galaxies, with their photometric redshifts obtained together with ground-based observations. This large dataset, with well-controlled systematic effects, will allow for cosmological analyses using the angular clustering of galaxies (GCph) and cosmic shear (WL). For Euclid, these two cosmological probes will not be independent because they will probe the same volume of the Universe. The cross-correlation (XC) between these probes can tighten constraints and is therefore important to quantify their impact for Euclid., [Aims] In this study, we therefore extend the recently published Euclid forecasts by carefully quantifying the impact of XC not only on the final parameter constraints for different cosmological models, but also on the nuisance parameters. In particular, we aim to decipher the amount of additional information that XC can provide for parameters encoding systematic effects, such as galaxy bias, intrinsic alignments (IAs), and knowledge of the redshift distributions., [Methods] We follow the Fisher matrix formalism and make use of previously validated codes. We also investigate a different galaxy bias model, which was obtained from the Flagship simulation, and additional photometric-redshift uncertainties; we also elucidate the impact of including the XC terms on constraining these latter., [Results] Starting with a baseline model, we show that the XC terms reduce the uncertainties on galaxy bias by ∼17% and the uncertainties on IA by a factor of about four. The XC terms also help in constraining the γ parameter for minimal modified gravity models. Concerning galaxy bias, we observe that the role of the XC terms on the final parameter constraints is qualitatively the same irrespective of the specific galaxy-bias model used. For IA, we show that the XC terms can help in distinguishing between different models, and that if IA terms are neglected then this can lead to significant biases on the cosmological parameters. Finally, we show that the XC terms can lead to a better determination of the mean of the photometric galaxy distributions., [Conclusions] We find that the XC between GCph and WL within the Euclid survey is necessary to extract the full information content from the data in future analyses. These terms help in better constraining the cosmological model, and also lead to a better understanding of the systematic effects that contaminate these probes. Furthermore, we find that XC significantly helps in constraining the mean of the photometric-redshift distributions, but, at the same time, it requires more precise knowledge of this mean with respect to single probes in order not to degrade the final "figure of merit"., Tutusaus acknowledges support from the Spanish Ministry of Science, Innovation and Universities through grant ESP2017-89838-C3-1-R, and the H2020 programme of the European Commission through grant 776247. M. Martinelli has received the support of a fellowship from “la Caixa” Foundation (ID 100010434), with fellowship code LCF/BQ/PI19/11690015, and the support of the Spanish Agen-cia Estatal de Investigacion through the grant “IFT Centro de Excelencia Severo Ochoa SEV-2016-0597”. S. Camera acknowledges support from the “Departments of Excellence 2018−2022” Grant awarded by the Italian Ministry of Education, University and Research (miur) L. 232/2016. S. Camera is supported by miur through Rita Levi Montalcini project “prometheus – Probing and Relating Observables with Multi-wavelength Experiments To Help Enlightening the Universe’s Structure”. F. Lacasa acknowledges support by the Swiss National Science Foundation. S. Ilić acknowledges financial support from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007–2013)/ERC Grant Agreement No. 617656 “Theories and Models of the Dark Sector: Dark Matter, Dark Energy and Gravity”. V. Yankelevich acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 769130). P. Ntelis is funded by “Centre National d’Études Spatiales” (CNES), for the Euclid project. The Euclid Consortium acknowledges the European Space Agency and the support of a number of agencies and institutes that have supported the development of Euclid, in particular the Academy of Finland, the Agenzia Spaziale Italiana, the Belgian Science Policy, the Canadian Euclid Consortium, the Centre National d’Etudes Spatiales, the Deutsches Zentrum für Luft-und Raumfahrt, the Danish Space Research Institute, the Fundação para a Ciência e a Tecnologia, the Ministerio de Economia y Compet-itividad, the National Aeronautics and Space Administration, the Netherlandse Onderzoekschool Voor Astronomie, the Norwegian Space Agency, the Romanian Space Agency, the State Secretariat for Education, Research and Innovation (SERI) at the Swiss Space Office (SSO), and the United Kingdom Space Agency. A detailed complete list is available on the Euclid website (http:// www.euclid-ec.org).

Published
2020
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3. Euclid preparation

Author

A. Blanchard, S. Camera, C. Carbone, V. F. Cardone, S. Casas, S. Clesse, S. Ilić, M. Kilbinger, T. Kitching, M. Kunz, F. Lacasa, E. Linder, E. Majerotto, K. Markovič, M. Martinelli, V. Pettorino, A. Pourtsidou, Z. Sakr, A. G. Sánchez, D. Sapone, I. Tutusaus, S. Yahia-Cherif, V. Yankelevich, S. Andreon, H. Aussel, A. Balaguera-Antolínez, M. Baldi, S. Bardelli, R. Bender, A. Biviano, D. Bonino

Published
2020
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4. Euclid: Forecast constraints on the cosmic distance duality relation with complementary external probes

Author

Jochen Weller, Rafael Toledo-Moreo, Frank Grupp, Stefano Camera, Enzo Branchini, M. Poncet, Ismael Tereno, A. Secroun, Lauro Moscardini, C. Padilla, F. Raison, Richard Massey, Knud Jahnke, Roberto P. Saglia, M. Frailis, Natalia Auricchio, T. Vassallo, Katarina Markovic, L. Popa, R. Cledassou, Ole Marggraf, Jason Rhodes, L. Conversi, Martin Kilbinger, V. Pettorino, M. Fumana, Luca Valenziano, Martin Kunz, Massimo Meneghetti, Niraj Welikala, Matteo Martinelli, Santiago Serrano, Massimo Brescia, Franck Sureau, P. B. Lilje, C. Bodendorf, Bianca Garilli, E. Franceschi, Stein Vidar Hagfors Haugan, F. Pasian, Stefano Cavuoti, Andrea Zacchei, I. Tutusaus, Hannu Kurki-Suonio, Thomas D. Kitching, V. Yankelevich, W. Holmes, Savvas Nesseris, Stéphane Paltani, G. Polenta, Ivan Lloro, Peter Schneider, Georges Meylan, Sandrine Pires, S. Ilić, S. Casas, J. Carretero, Carmelita Carbone, B. Gillis, Yu Wang, Marco Castellano, Carlos Martins, Lucia Pozzetti, D. Bonino, B. Kubik, C. Sirignano, Z. Sakr, Anne Ealet, Jarle Brinchmann, Mauro Roncarelli, A. N. Taylor, V. Capobianco, A. Balestra, F. Dubath, Domenico Sapone, Anastasios Avgoustidis, Leonardo Corcione, G. Sirri, S. Kermiche, Sebastiano Ligori, Felix Hormuth, Simona Mei, G. Congedo, Carlo Giocoli, Sami Niemi, La Caixa, Agencia Estatal de Investigación (España), European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Fundación Severo Ochoa, Ministerio de Ciencia, Innovación y Universidades (España), Science and Technology Facilities Council (UK), Martinelli M., Martins C.J.A.P., Nesseris S., Sapone D., Tutusaus I., Avgoustidis A., Camera S., Carbone C., Casas S., Ilic S., Sakr Z., Yankelevich V., Auricchio N., Balestra A., Bodendorf C., Bonino D., Branchini E., Brescia M., Brinchmann J., Capobianco V., Carretero J., Castellano M., Cavuoti S., Cledassou R., Congedo G., Conversi L., Corcione L., Dubath F., Ealet A., Frailis M., Franceschi E., Fumana M., Garilli B., Gillis B., Giocoli C., Grupp F., Haugan S.V.H., Holmes W., Hormuth F., Jahnke K., Kermiche S., Kilbinger M., Kitching T.D., Kubik B., Kunz M., Kurki-Suonio H., Ligori S., Lilje P.B., Lloro I., Marggraf O., Markovic K., Massey R., Mei S., Meneghetti M., Meylan G., Moscardini L., Niemi S., Padilla C., Paltani S., Pasian F., Pettorino V., Pires S., Polenta G., Poncet M., Popa L., Pozzetti L., Raison F., Rhodes J., Roncarelli M., Saglia R., Schneider P., Secroun A., Serrano S., Sirignano C., Sirri G., Sureau F., Taylor A.N., Tereno I., Toledo-Moreo R., Valenziano L., Vassallo T., Wang Y., Welikala N., Weller J., Zacchei A., Department of Physics, Helsinki Institute of Physics, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), EUCLID, ITA, USA, GBR, FRA, DEU, ESP, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Martinelli, M., Martins, C. J. A. P., Nesseris, S., Sapone, D., Tutusaus, I., Avgoustidis, A., Camera, S., Carbone, C., Casas, S., Ilic, S., Sakr, Z., Yankelevich, V., Auricchio, N., Balestra, A., Bodendorf, C., Bonino, D., Branchini, E., Brescia, M., Brinchmann, J., Capobianco, V., Carretero, J., Castellano, M., Cavuoti, S., Cledassou, R., Congedo, G., Conversi, L., Corcione, L., Dubath, F., Ealet, A., Frailis, M., Franceschi, E., Fumana, M., Garilli, B., Gillis, B., Giocoli, C., Grupp, F., Haugan, S. V. H., Holmes, W., Hormuth, F., Jahnke, K., Kermiche, S., Kilbinger, M., Kitching, T. D., Kubik, B., Kunz, M., Kurki-Suonio, H., Ligori, S., Lilje, P. B., Lloro, I., Marggraf, O., Markovic, K., Massey, R., Mei, S., Meneghetti, M., Meylan, G., Moscardini, L., Niemi, S., Padilla, C., Paltani, S., Pasian, F., Pettorino, V., Pires, S., Polenta, G., Poncet, M., Popa, L., Pozzetti, L., Raison, F., Rhodes, J., Roncarelli, M., Saglia, R., Schneider, P., Secroun, A., Serrano, S., Sirignano, C., Sirri, G., Sureau, F., Taylor, A. N., Tereno, I., Toledo-Moreo, R., Valenziano, L., Vassallo, T., Wang, Y., Welikala, N., Weller, J., and Zacchei, A.

Subjects
cosmological model, Cosmological parameter, statistical [Methods], SAMPLE, Physics beyond the Standard Model, Cosmological parameters, Cosmology: observations, Methods: data analysis, Methods: statistical, Space vehicles: instruments, Surveys, Astrophysics, 01 natural sciences, INTERGALACTIC DUST, Cosmology: observation, current: constraint, parameter space, space vehicles: instruments, observations [Cosmology], data analysis [Methods], 010303 astronomy & astrophysics, SCALE, Parametric statistics, Physics, new physics, photon, EXPANSION, GALAXIES, Metric (mathematics), astro-ph.CO, duality, Baryon acoustic oscillations, cosmology: observations / cosmological parameters / surveys / methods: data analysis / methods: statistical / space vehicles: instruments, Algorithm, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), REDSHIFT, Duality (optimization), FOS: Physical sciences, observation [Cosmology], Context (language use), Lambda-CDM model, gravitation: metric, parametric, Astrophysics::Cosmology and Extragalactic Astrophysics, Space vehicles: instrument, instruments [Space vehicles], statistical analysis, instrument [Space vehicles], 0103 physical sciences, conservation law, Point (geometry), cosmological parameters, 010308 nuclear & particles physics, Astronomy and Astrophysics, MICROWAVE BACKGROUND TEMPERATURE, 115 Astronomy, Space science, methods: data analysis, data analysi [Methods], Space and Planetary Science, cosmology: observations, COSMOLOGY, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], BARYON ACOUSTIC-OSCILLATIONS, Methods: data analysi
Abstract

[Context] In metric theories of gravity with photon number conservation, the luminosity and angular diameter distances are related via the Etherington relation, also known as the distance duality relation (DDR). A violation of this relation would rule out the standard cosmological paradigm and point to the presence of new physics. Aims. We quantify the ability of Euclid, in combination with contemporary surveys, to improve the current constraints on deviations from the DDR in the redshift range 0 < z < 1.6., [Methods] We start with an analysis of the latest available data, improving previously reported constraints by a factor of 2.5. We then present a detailed analysis of simulated Euclid and external data products, using both standard parametric methods (relying on phenomenological descriptions of possible DDR violations) and a machine learning reconstruction using genetic algorithms., [Results] We find that for parametric methods Euclid can (in combination with external probes) improve current constraints by approximately a factor of six, while for non-parametric methods Euclid can improve current constraints by a factor of three.; [Conclusions] Our results highlight the importance of surveys like Euclid in accurately testing the pillars of the current cosmological paradigm and constraining physics beyond the standard cosmological model., MM has received the support of a fellowship from “la Caixa” Foundation (ID 100010434), with fellowship code LCF/BQ/PI19/11690015, and the support of the Spanish Agencia Estatal de Investigacion through the grant “IFT Centro de Excelencia Severo Ochoa SEV-2016-0597”. The work of CJM was financed by FEDER – Fundo Europeu de Desenvolvimento Regional funds through the COMPETE 2020 – Operational Programme for Competitiveness and Internationalisation (POCI), and by Portuguese funds through FCT - Fundação para a Ciência e a Tecnologia in the framework of the project POCI-01-0145-FEDER-028987. S.N. acknowledges support from the research project PGC2018-094773-B-C32, the Centro de Excelencia Severo Ochoa Program SEV-2016-059 and the Ramón y Cajal program through Grant No. RYC-2014-15843. D.S. acknowledges financial support from the Fondecyt Regular project number 1200171. I.T. acknowledges support from the Spanish Ministry of Science, Innovation and Universities through grant ESP2017-89838-C3-1-R, and the H2020 programme of the European Commission through grant 776247. A.A. acknowledges support from the Science and Technology Facilities Council (STFC) grant ST/P000703/1. V.Y. acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 769130)

Published
2020
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5. Cosmological information in the redshift-space bispectrum

Author

V. Yankelevich and Cristiano Porciani

Subjects
Physics, Cold dark matter, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Gaussian, Spectral density, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Galaxy, Redshift, symbols.namesake, Theoretical physics, Space and Planetary Science, 0103 physical sciences, Dark energy, symbols, 010303 astronomy & astrophysics, Phenomenology (particle physics), Bispectrum, QC, QB, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We use the Fisher-matrix formalism to investigate whether the galaxy bispectrum in redshift space, $B$, contains additional cosmological information with respect to the power spectrum, $P$. We focus on a $Euclid$-like survey and consider cosmological models dominated by dark energy and cold dark matter with Gaussian primordial perturbations. After discussing the phenomenology of redshift-space distortions for the bispectrum, we derive an expression for the cross-covariance between $B$ and $P$ at leading order in perturbation theory. Our equation generalizes previous results that did not consider binning in the orientation of wavevector triangles with respect to the line of sight. By considering Fourier modes with wavenumber $k, 24 pages, 15 figures, accepted for publication in MNRAS. Minor changes to match the published version. Includes updated HOD model for Euclid galaxies. Conclusions unchanged

Published
2018
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