Article
Astronomy & Astrophysics
Matteo Cataneo, Cora Uhlemann, Christian Arnold, Alex Gough, Baojiu Li, Catherine Heymans
Summary: In this study, an analytical description of the probability distribution function (PDF) of the smoothed 3D matter density field for modified gravity and dark energy is presented. The approach is based on Large Deviations Theory and is applicable to various extensions of the standard cosmology. The results show high accuracy in the mildly non-linear regime and demonstrate the power of combining measurements of the 3D matter PDF with the 3D matter power spectrum.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Ginevra Favole, Benjamin R. Granett, Javier Silva Lafaurie, Domenico Sapone
Summary: The study investigates the jackknife method for internal covariance estimation in large-scale structure surveys, exploring the impact of jackknife size and number of resamplings on the precision of the covariance estimate and errors in cosmological parameters. Results show that the baryon acoustic scale error estimate is independent of the jackknife scale, while the shift parameter a exhibits variations in error estimates from different datasets.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Sara Konrad, Yonadav Barry Ginat, Matthias Bartelmann
Summary: We study the small-scale asymptotic behaviour of the cold dark matter density fluctuation power spectrum in the Zel'dovich approximation and derive an asymptotic series dominated by a k(-3) tail. Our results are important for understanding perturbative terms in kinetic field theory and the non-linear power spectrum, as well as the sensitivity of small-scale behaviour to the spectral index.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Rafael Garcia, Edgar Salazar, Eduardo Rozo, Susmita Adhikari, Han Aung, Benedikt Diemer, Daisuke Nagai, Brandon Wolfe
Summary: Dark matter haloes are recognized as fundamental building blocks of large-scale structure formation models. We propose a physically motivated and parameter-free definition for haloes. We demonstrate that the mass function of physical haloes follows Press-Schechter and the clustering amplitude prediction is statistically consistent with simulation data, with an accuracy of approximately 5%.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Tibor Dome, Anastasia Fialkov, Nina Sartorio, Philip Mocz
Summary: N-body simulations using the fuzzy dark matter (FDM) model reveal that cosmic sheets, walls, and voids are more pronounced structures in FDM cosmologies compared to cold dark matter (CDM). The conditioned overdensity PDFs show a strong mid-range peak in FDM cosmologies, and the skewness estimates of the total overdensity PDF are consistently higher in FDM cosmologies, especially at high redshifts.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
William McDonald, Danail Obreschkow, Lilian Garratt-Smithson
Summary: This paper introduces a new dissociation index to compare the relationship between cold dark matter and gas in cosmic large-scale structures. The study finds that 90% of galaxy clusters have dark matter more elongated than gas, consistent with observations. Through simulations of colliding gaseous dark matter haloes, the details of dissociation process are further explored.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Shang Li, Ji-Ping Dai, Xiu-Hui Tan, Yang-Jie Yan, Jun-Qing Xia
Summary: The bounce scenario in cosmology is a research topic that addresses the singularity problem and trans-Planckian issue left by the standard inflationary theory. In this work, the authors extend the analysis to large-scale structure measurements and find that the model parameters can be constrained effectively. The constraints become even stronger when combined with the measurements from the Planck satellite.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Fulvio Ferlito, Sunny Vagnozzi, David F. Mota, Marco Baldi
Summary: In this study, we investigate the non-linear effects of scattering between dark energy and baryons on the formation of cosmic structures. Using large N-body simulations, we find that the signatures of this scattering in the non-linear regime are significantly larger than in the linear regime, and could potentially be constrained through a combination of observables.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Simon May, Volker Springel
Summary: This study discusses the interest in ultralight bosonic particles of mass around 10(-22) eV/c(2) as a dark matter candidate, highlighting their potential impact on small-scale tensions in the standard cosmological model. By simulating fuzzy dark matter (FDM) dynamics with non-linear wave effects, the study reveals the suppression of power on small scales relative to cold dark matter (CDM) and the computational challenges associated with FDM equations. The simulations provide insights into the evolution of matter power spectrum and the halo mass function of FDM.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Cristhian Garcia, Camilo Santa, Antonio Enea Romano
Summary: This article introduces the use of convolutional neural networks to solve the inversion problem of the large-scale structure of the Universe. By observing the luminosity distance of Supernovae Ia, the researchers can reconstruct the large-scale structure. The results show that the velocity field inversion is more accurate than the density field.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Payaswinee Dhoke, Aseem Paranjape
Summary: The study investigates the relationship between mass accretion by dark haloes and environmental changes in simulations of CDM and WDM cosmologies. It reveals that WDM haloes have higher specific accretion rates and exhibit environment-dependent characteristics compared to CDM haloes. The results also show significant assembly bias due to diffuse mass accretion for low-mass CDM and WDM haloes, which could impact predictions of galaxy evolution models.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Jurek B. Bauer, David J. E. Marsh, Renee Hlozek, Hamsa Padmanabhan, Alex Laguee
Summary: In this study, intensity mapping of neutral hydrogen in a specific redshift range was conducted using a halo model approach. The distribution of dark matter haloes was assumed to have an impact on the abundance of neutral hydrogen haloes, presenting a scale-independent increase in the power spectrum. The Fisher matrix formalism was used to predict the capability of future HI surveys in constraining the axion fraction of dark matter.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
M. Sten Delos, Joseph Silk
Summary: Primordial black holes (PBHs) form from initial large-amplitude density fluctuations and may make up some or all of the dark matter. PBHs with a broad mass spectrum or in mixed PBH-particle dark matter scenarios also give rise to the formation of a larger abundance of ultra-dense dark matter minihaloes. These minihaloes can have internal densities around 10^12 M(circle dot)pc(-3) and can consist of either particle dark matter or smaller PBHs. This discovery has important implications for PBH scenarios and allows for the possibility of new observational tests.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Ken Osato, Takahiro Nishimichi, Masahiro Takada
Summary: A novel and fast scheme for populating emission-line galaxies (ELGs) in dark-matter only N-body simulations based on local density field is presented. The power spectrum of simulated ELGs agrees with hydrodynamical simulations and they are more likely to be found in filamentary structures. The redshift-space power spectrum of simulated ELGs exhibits a weaker Finger-of-God effect compared to matter.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Mihir Kulkarni, Jeremiah P. Ostriker
Summary: Fuzzy dark matter, composed of ultra-light axions, is an alternative theory designed to address the small-scale problems faced by the standard cold dark matter proposal. It alleviates some of the apparent discrepancies faced by the standard ACDM paradigm.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Katarina Markovic, Will J. Percival, Marco Scodeggio, Anne Ealet, Stefanie Wachter, Bianca Garilli, Luigi Guzzo, Roberto Scaramella, Elisabetta Maiorano, Jerome Amiaux
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2017)
Article
Astronomy & Astrophysics
Katarina Markovic, Sarah Bridle, Anze Slosar, Jochen Weller
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2011)
Review
Physics, Particles & Fields
Luca Amendola, Stephen Appleby, David Bacon, Tessa Baker, Marco Baldi, Nicola Bartolo, Alain Blanchard, Camille Bonvin, Stefano Borgani, Enzo Branchini, Clare Burrage, Stefano Camera, Carmelita Carbone, Luciano Casarini, Mark Cropper, Claudia de Rham, Cinzia Di Porto, Anne Ealet, Pedro G. Ferreira, Fabio Finelli, Juan Garcia-Bellido, Tommaso Giannantonio, Luigi Guzzo, Alan Heavens, Lavinia Heisenberg, Catherine Heymans, Henk Hoekstra, Lukas Hollenstein, Rory Holmes, Ole Horst, Knud Jahnke, Thomas D. Kitching, Tomi Koivisto, Martin Kunz, Giuseppe La Vacca, Marisa March, Elisabetta Majerotto, Katarina Markovic, David Marsh, Federico Marulli, Richard Massey, Yannick Mellier, David F. Mota, Nelson J. Nunes, Will Percival, Valeria Pettorino, Cristiano Porciani, Claudia Quercellini, Justin Read, Massimiliano Rinaldi, Domenico Sapone, Roberto Scaramella, Constantinos Skordis, Fergus Simpson, Andy Taylor, Shaun Thomas, Roberto Trotta, Licia Verde, Filippo Vernizzi, Adrian Vollmer, Yun Wang, Jochen Weller, Tom Zlosnik
LIVING REVIEWS IN RELATIVITY
(2013)
Article
Astronomy & Astrophysics
M. Viel, K. Markovic, M. Baldi, J. Weller
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2012)
Article
Astronomy & Astrophysics
Katarina Markovic, Matteo Viel
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
(2014)
Article
Astronomy & Astrophysics
P. Paykari, T. Kitching, H. Hoekstra, R. Azzollini, V. F. Cardone, M. Cropper, C. A. J. Duncan, A. Kannawadi, L. Miller, H. Aussel, I. F. Conti, N. Auricchio, M. Baldi, S. Bardelli, A. Biviano, D. Bonino, E. Borsato, E. Bozzo, E. Branchini, S. Brau-Nogue, M. Brescia, J. Brinchmann, C. Burigana, S. Camera, V Capobianco, C. Carbone, J. Carretero, F. J. Castander, M. Castellano, S. Cavuoti, Y. Charles, R. Cledassou, C. Colodro-Conde, G. Congedo, C. Conselice, L. Conversi, Y. Copin, J. Coupon, H. M. Courtois, A. Da Silva, X. Dupac, G. Fabbian, S. Farrens, P. G. Ferreira, P. Fosalba, N. Fourmanoit, M. Frailis, M. Fumana, S. Galeotta, B. Garilli, W. Gillard, B. R. Gillis, C. Giocoli, J. Gracia-Carpio, F. Grupp, F. Hormuth, S. Ilic, H. Israel, K. Jahnke, E. Keihanen, S. Kermiche, M. Kilbinger, C. C. Kirkpatrick, B. Kubik, M. Kunz, H. Kurki-Suonio, R. Laureijs, D. Le Mignant, S. Ligori, P. B. Lilje, I Lloro, T. Maciaszek, E. Maiorano, O. Marggraf, K. Markovic, N. Martinet, F. Marulli, R. Massey, N. Mauri, E. Medinaceli, S. Mei, Y. Mellier, M. Meneghetti, R. B. Metcalf, M. Moresco, L. Moscardini, E. Munari, C. Neissner, R. C. Nichol, S. Niemi, T. Nutma, C. Padilla, S. Paltani, F. Pasian, V Pettorino, S. Pires, G. Polenta, F. Raison, A. Renzi, J. Rhodes, E. Romelli, M. Roncarelli, E. Rossetti, R. Saglia, Z. Sakr, A. G. Sanchez, D. Sapone, R. Scaramella, P. Schneider, T. Schrabback, V Scottez, A. Secroun, S. Serrano, C. Sirignano, G. Sirri, L. Stanco, J-L Starck, F. Sureau, P. Tallada-Crespi, A. Taylor, M. Tenti, I Tereno, R. Toledo-Moreo, F. Torradeflot, L. Valenziano, M. Vannier, T. Vassallo, J. Zoubian, E. Zucca
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
Benjamin Bose, Alkistis Pourtsidou, Katarina Markovic, Florian Beutler
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2020)
Article
Astronomy & Astrophysics
Guido d'Amico, Jerome Gleyzes, Nickolas Kokron, Dida Markovic, Leonardo Senatore, Pierre Zhang, Florian Beutler, Hector Gil-Marin
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2020)
Correction
Astronomy & Astrophysics
P. Paykari, T. Kitching, H. Hoekstra, R. Azzollini, V. F. Cardone, M. Cropper, C. A. J. Duncan, A. Kannawadi, L. Miller, H. Aussel, I. F. Conti, N. Auricchio, M. Baldi, S. Bardelli, A. Biviano, D. Bonino, E. Borsato, E. Bozzo, E. Branchini, S. Brau-Nogue, M. Brescia, J. Brinchmann, C. Burigana, S. Camera, V. Capobianco, C. Carbone, J. Carretero, S. Casas, F. J. Castander, M. Castellano, S. Cavuoti, Y. Charles, R. Cledassou, C. Colodro-Conde, G. Congedo, C. Conselice, L. Conversi, Y. Copin, J. Coupon, H. M. Courtois, A. Da Silva, X. Dupac, G. Fabbian, S. Farrens, P. G. Ferreira, P. Fosalba, N. Fourmanoit, M. Frailis, M. Fumana, S. Galeotta, B. Garilli, W. Gillard, B. R. Gillis, C. Giocoli, J. Gracia-Carpio, F. Grupp, F. Hormuth, S. Ilic, H. Israel, K. Jahnke, E. Keihanen, S. Kermiche, M. Kilbinger, C. C. Kirkpatrick, B. Kubik, M. Kunz, H. Kurki-Suonio, F. Lacasa, R. Laureijs, D. Le Mignant, S. Ligori, P. B. Lilje, I. Lloro, T. Maciaszek, E. Maiorano, O. Marggraf, K. Markovic, M. Martinelli, N. Martinet, F. Marulli, R. Massey, N. Mauri, E. Medinaceli, S. Mei, Y. Mellier, M. Meneghetti, R. B. Metcalf, M. Moresco, L. Moscardini, E. Munari, C. Neissner, R. C. Nichol, S. Niemi, T. Nutma, C. Padilla, S. Paltani, F. Pasian, V. Pettorino, S. Pires, G. Polenta, A. Pourtsidou, F. Raison, A. Renzi, J. Rhodes, E. Romelli, M. Roncarelli, E. Rossetti, R. Saglia, Z. Sakr, A. G. Sanchez, D. Sapone, R. Scaramella, P. Schneider, T. Schrabback, V. Scottez, A. Secroun, S. Serrano, C. Sirignano, G. Sirri, L. Stanco, J. -L. Starck, F. Sureau, P. Tallada-Crespi, A. Taylor, M. Tenti, I. Tereno, R. Toledo-Moreo, F. Torradeflot, I. Tutusaus, L. Valenziano, M. Vannier, T. Vassallo, J. Zoubian, E. Zucca
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
M. Martinelli, C. J. A. P. Martins, S. Nesseris, D. Sapone, I. Tutusaus, A. Avgoustidis, S. Camera, C. Carbone, S. Casas, S. Ilic, Z. Sakr, V. Yankelevich, N. Auricchio, A. Balestra, C. Bodendorf, D. Bonino, E. Branchini, M. Brescia, J. Brinchmann, V. Capobianco, J. Carretero, M. Castellano, S. Cavuoti, R. Cledassou, G. Congedo, L. Conversi, L. Corcione, F. Dubath, A. Ealet, M. Frailis, E. Franceschi, M. Fumana, B. Garilli, B. Gillis, C. Giocoli, F. Grupp, S. V. H. Haugan, W. Holmes, F. Hormuth, K. Jahnke, S. Kermiche, M. Kilbinger, T. D. Kitching, B. Kubik, M. Kunz, H. Kurki-Suonio, S. Ligori, P. B. Lilje, I. Lloro, O. Marggraf, K. Markovic, R. Massey, S. Mei, M. Meneghetti, G. Meylan, L. Moscardini, S. Niemi, C. Padilla, S. Paltani, F. Pasian, V. Pettorino, S. Pires, G. Polenta, M. Poncet, L. Popa, L. Pozzetti, F. Raison, J. Rhodes, M. Roncarelli, R. Saglia, P. Schneider, A. Secroun, S. Serrano, C. Sirignano, G. Sirri, F. Sureau, A. N. Taylor, I. Tereno, R. Toledo-Moreo, L. Valenziano, T. Vassallo, Y. Wang, N. Welikala, J. Weller, A. Zacchei
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
G. Desprez, S. Paltani, J. Coupon, I. Almosallam, A. Alvarez-Ayllon, V. Amaro, M. Brescia, M. Brodwin, S. Cavuoti, J. De Vicente-Albendea, S. Fotopoulou, P. W. Hatfield, W. G. Hartley, O. Ilbert, M. J. Jarvis, G. Longo, M. M. Rau, R. Saha, J. S. Speagle, A. Tramacere, M. Castellano, F. Dubath, A. Galametz, M. Kuemmel, C. Laigle, E. Merlin, J. J. Mohr, S. Pilo, M. Salvato, S. Andreon, N. Auricchio, C. Baccigalupi, A. Balaguera-Antolinez, M. Baldi, S. Bardelli, R. Bender, A. Biviano, C. Bodendorf, D. Bonino, E. Bozzo, E. Branchini, J. Brinchmann, C. Burigana, R. Cabanac, S. Camera, V. Capobianco, A. Cappi, C. Carbone, J. Carretero, C. S. Carvalho, R. Casas, S. Casas, F. J. Castander, G. Castignani, A. Cimatti, R. Cledassou, C. Colodro-Conde, G. Congedo, C. J. Conselice, L. Conversi, Y. Copin, L. Corcione, H. M. Courtois, J. -G. Cuby, A. Da Silva, S. de la Torre, H. Degaudenzi, D. Di Ferdinando, M. Douspis, C. A. J. Duncan, X. Dupac, A. Ealet, G. Fabbian, M. Fabricius, S. Farrens, P. G. Ferreira, F. Finelli, P. Fosalba, N. Fourmanoit, M. Frailis, E. Franceschi, M. Fumana, S. Galeotta, B. Garilli, W. Gillard, B. Gillis, C. Giocoli, G. Gozaliasl, J. Gracia-Carpio, F. Grupp, L. Guzzo, M. Hailey, S. V. H. Haugan, W. Holmes, F. Hormuth, A. Humphrey, K. Jahnke, E. Keihanen, S. Kermiche, M. Kilbinger, C. C. Kirkpatrick, T. D. Kitching, R. Kohley, B. Kubik, M. Kunz, H. Kurki-Suonio, S. Ligori, P. B. Lilje, I. Lloro, D. Maino, E. Maiorano, O. Marggraf, K. Markovic, N. Martinet, F. Marulli, R. Massey, M. Maturi, N. Mauri, S. Maurogordato, E. Medinaceli, S. Mei, M. Meneghetti, R. Benton Metcalf, G. Meylan, M. Moresco, L. Moscardini, E. Munari, S. Niemi, C. Padilla, F. Pasian, L. Patrizii, V. Pettorino, S. Pires, G. Polenta, M. Poncet, L. Popa, D. Potter, L. Pozzetti, F. Raison, A. Renzi, J. Rhodes, G. Riccio, E. Rossetti, R. Saglia, D. Sapone, P. Schneider, V. Scottez, A. Secroun, S. Serrano, C. Sirignano, G. Sirri, L. Stanco, D. Stern, F. Sureau, P. Tallada Crespi, D. Tavagnacco, A. N. Taylor, M. Tenti, I. Tereno, R. Toledo-Moreo, F. Torradeflot, L. Valenziano, J. Valiviita, T. Vassallo, M. Viel, Y. Wang, N. Welikala, L. Whittaker, A. Zacchei, G. Zamorani, J. Zoubian, E. Zucca
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
Pedro Carrilho, Chiara Moretti, Benjamin Bose, Katarina Markovic, Alkistis Pourtsidou
Summary: Interacting dark energy models are proposed as alternatives to ACDM, and forthcoming galaxy clustering surveys will provide constraints on these models. This study compares three approaches of modeling non-linearities, considering a model with a simple 1-parameter extension to wCDM. Analysis using simulated data shows that the EFTofLSS-based model is better at describing data up to smaller scales and extracting more information, forecasting uncertainties on the dark energy equation of state and interaction parameter.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2021)
Article
Astronomy & Astrophysics
Masato Shirasaki, Eric M. Huff, Katarina Markovic, Jason D. Rhodes
Summary: We study the probability distribution function of relative velocity between different dark matter halos using high-resolution cosmological N-body simulations. Our model based on a non-Gaussian framework requires fewer parameters compared to previous models in the literature, providing a detailed explanation of the statistics of massive galaxies at intermediate scales in redshift surveys.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Jason Rhodes, Robert C. Nichol, Eric Aubourg, Rachel Bean, Dominique Boutigny, Malcolm N. Bremer, Peter Capak, Vincenzo Cardone, Benoit Carry, Christopher J. Conselice, Andrew J. Connolly, Jean-Charles Cuillandre, N. A. Hatch, George Helou, Shoubaneh Hemmati, Hendrik Hildebrandt, Renee Hlozek, Lynne Jones, Steven Kahn, Alina Kiessling, Thomas Kitching, Robert Lupton, Rachel Mandelbaum, Katarina Markovic, Phil Marshall, Richard Massey, Ben J. Maughan, Peter Melchior, Yannick Mellier, Jeffrey A. Newman, Brant Robertson, Marc Sauvage, Tim Schrabback, Graham P. Smith, Michael A. Strauss, Andy Taylor, Anja Von der Linden
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2017)