Browsing Institutt for teoretisk astrofysikk by Author "Llinares, Claudio"

Now showing items 1-14 of 14

  • Cosmic tsunamis in modified gravity: disruption of screening mechanisms from scalar waves 
    Hagala, Robert; Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Extending general relativity by adding extra degrees of freedom is a popular approach for explaining the accelerated expansion of the Universe and to build high energy completions of the theory of gravity. The presence of ...
  • Cosmological simulations of screened modified gravity out of the static approximation: Effects on matter distribution 
    Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    In the context of scalar tensor theories for gravity, there is a universally adopted hypothesis when running N-body simulations that time derivatives in the equation of motion for the scalar field are negligible. In this ...
  • Domain walls coupled to matter: The symmetron example 
    Llinares, Claudio; Pogosian, Levon (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    We study properties of domain walls in the symmetron model, in which the scalar gravitational degree of freedom decouples from matter in regions of high density and exhibits a spontaneously broken Z2 symmetry at low ...
  • Euclid preparation: XXVIII. Forecasts for ten different higher-order weak lensing statistics 
    Ajani, V.; Baldi, M.; Barthelemy, A.; Boyle, A.; Burger, P.; Cardone, V.F.; Cheng, S.; Codis, S.; Giocoli, C.; Harnois-Déraps, J.; Heydenreich, S.; Kansal, V.; Kilbinger, M.; Linke, L.; Llinares, Claudio; Martinet, N.; Parroni, C.; Peel, A.; Pires, S.; Porth, L.; Tereno, I.; Uhlemann, C.; Vicinanza, M.; Vinciguerra, S.; Aghanim, N.; Auricchio, N.; Bonino, D.; Branchini, E.; Brescia, Massimo; Brinchmann, J.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Castander, F.J.; Castellano, M.; Cavuoti, Stefano; Cimatti, A.; Cledassou, R.; Congedo, G.; Conselice, C.J.; Conversi, L.; Corcione, L.; Courbin, F.; Cropper, M.; Da Silva, A.; Degaudenzi, H.; Di Giorgio, A.M.; Dinis, J.; Douspis, M.; Dubath, F.; Dupac, X.; Farrens, S.; Ferriol, S.; Fosalba, P.; Frailis, M.; Franceschi, E.; Galeotta, S.; Garilli, B.; Gillis, B.; Grazian, A.; Grupp, F.; Hoekstra, H.; Holmes, W.; Hornstrup, A.; Hudelot, P.; Jahnke, K.; Jhabvala, M.; Kümmel, M.; Kitching, T.; Kunz, M.; Kurki-Suonio, Hannu; Lilje, Per Barth; Lloro, I.; Maiorano, E.; Mansutti, O.; Marggraf, O.; Markovic, K.; Marulli, F.; Massey, Richard; Mei, S.; Mellier, Y.; Meneghetti, M.; Moresco, M.; Moscardini, L.; Niemi, S.-M.; Nightingale, J.; Nutma, T.; Padilla, C.; Paltani, S.; Pedersen, K.; Pettorino, V.; Polenta, G.; Poncet, M.; Popa, L.A.; Raison, F.; Renzi, A.; Rhodes, J.; Riccio, G.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Sapone, D.; Sartoris, B.; Schneider, P.; Schrabback, T.; Secroun, A.; Seidel, G.; Serrano, S.; Sirignano, C.; Stanco, L.; Starck, J.-L.; Tallada-Crespí, P.; Taylor, A.N.; Toledo-Moreo, R.; Torradeflot, F.; Tutusaus, I.; Valentijn, E.A.; Valenziano, L.; Vassallo, T.; Wang, Y.; Weller, J.; Zamorani, G.; Zoubian, J.; Andreon, S.; Bardelli, S.; Boucaud, A.; Bozzo, E.; Colodro-Conde, C.; Di Ferdinando, D.; Fabbian, G.; Farina, M.; Graciá-Carpio, J.; Keihänen, Elina; Lindholm, Valtteri; Maino, D.; Mauri, N.; Neissner, C.; Schirmer, M.; Scottez, V.; Zucca, E.; Akrami, Y.; Baccigalupi, C.; Balaguera-Antolínez, A.; Ballardini, M.; Bernardeau, F.; Biviano, A.; Blanchard, A.; Borgani, S.; Borlaff, A.S.; Burigana, C.; Cabanac, R.; Cappi, A.; Carvalho, C.S.; Casas, S.; Castignani, G.; Castro, T.; Chambers, K.C.; Cooray, A.R.; Coupon, J.; Courtois, H.M.; Davini, S.; de la Torre, S.; De Lucia, G.; Desprez, G.; Dole, H.; Escartin, J.A.; Escoffier, S.; Ferrero, Ismael; Finelli, F.; Ganga, K.; Garcia-Bellido, J.; George, K.; Giacomini, F.; Gozaliasl, G.; Hildebrandt, H.; Jimenez Muñoz, A.; Joachimi, B.; Kajava, J.J.E.; Kirkpatrick, C.C.; Legrand, L.; Loureiro, A.; Magliocchetti, M.; Maoli, R.; Marcin, S.; Martinelli, M.; Martins, Carlos Jose Amaro Parente; Matthew, S.; Maurin, L.; Metcalf, R.B.; Monaco, P.; Morgante, G.; Nadathur, S.; Nucita, A.A.; Popa, V.; Potter, D.; Pourtsidou, A.; Pöntinen, M.; Reimberg, P.; Sánchez, A.G.; Sakr, Z.; Schneider, A.; Sefusatti, E.; Sereno, M.; Shulevski, A.; Spurio Mancini, A.; Steinwagner, J.; Teyssier, R.; Väliviita, Jussi-Pekka; Veropalumbo, A.; Viel, M.; Zinchenko, I.A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Recent cosmic shear studies have shown that higher-order statistics (HOS) developed by independent teams now outperform standard two-point estimators in terms of statistical precision thanks to their sensitivity to the ...
  • Gravitational redshift profiles in the f(R) and symmetron models 
    Grönke, Max Balthasar; Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Aims: We investigate the gravitational redshift in clusters of galaxies in the symmetron and Hu-Sawicky f(R) models. The characteristic feature of both models is the screening mechanism that hides the fifth force in dense ...
  • Halo velocity profiles in screened modified gravity theories 
    Grönke, Max Balthasar; Llinares, Claudio; Mota, David; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Screened modified gravity predicts potentially large signatures in the peculiar velocity field that makes it an interesting probe to test gravity on cosmological scales. We investigate the signatures induced by the Symmetron ...
  • Hydrodynamic effects in the symmetron and f(R)-gravity models 
    Hammami, Amir; Llinares, Claudio; Mota, David; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    In this paper, we present the first results from implementing two scalar–tensor modified gravity theories, the symmetron and the Hu–Sawicki f(R)-gravity model, into a hydrodynamic N-body code with dark matter particles and ...
  • ISIS: a new N-body cosmological code with scalar fields based on RAMSES - Code presentation and application to the shapes of clusters 
    Llinares, Claudio; Mota, David; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Several extensions of the standard cosmological model include scalar fields as new degrees of freedom in the underlying gravitational theory. A particular class of these scalar field theories include screening mechanisms ...
  • Modeling void abundance in modified gravity 
    Voivodic, Rodrigo; Lima, Marcos; Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017 American Physical Society
  • Non-linear phenomenology of disformally coupled quintessence 
    Llinares, Claudio; Hagala, Robert; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The quintessence model is one of the simplest and better known alternatives to Einstein’s theory for gravity. The properties of the solutions have been studied in great detail in the background, linear and non-linear ...
  • Releasing Scalar Fields: Cosmological Simulations of Scalar-Tensor Theories for Gravity Beyond the Static Approximation 
    Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Several extensions of general relativity and high energy physics include scalar fields as extra degrees of freedom. In the search for predictions in the nonlinear regime of cosmological evolution, the community makes use ...
  • Shape of Clusters of Galaxies as a Probe of Screening Mechanisms in Modified Gravity 
    Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Scalar fields are crucial components in high energy physics and extensions of general relativity. The fact that they are not observed in the Solar System may be due to a mechanism which screens their presence in high dense ...
  • Testing modified gravity with globular clusters: the case of NGC 2419 
    Llinares, Claudio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The dynamics of globular clusters has been studied in great detail in the context of general relativity as well as with modifications of gravity that strongly depart from the standard paradigm such as Modified Newtonian ...
  • The slingshot effect as a probe of transverse motions of galaxies 
    Hagala, Robert; Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Context: There are currently no reliable methods to measure the transverse velocities of galaxies. This is an important piece of information that is lacking in galaxy catalogues, and it could allow us to probe the physics ...