Quantifying the impact of baryon-CDM perturbations on halo clustering and baryon fraction

Autor: Hasti Khoraminezhad, Raul E. Angulo, Titouan Lazeyras, Matteo Viel, Oliver Hahn

Publikováno v: JCAP
JCAP, 2021, 03, pp.023. ⟨10.1088/1475-7516/2021/03/023⟩
Journal of Cosmology and Astroparticle Physics

Baryons and cold dark matter (CDM) did not comove prior to recombination. This leads to differences in the local baryon and CDM densities, the so-called baryon-CDM isocurvature perturbations $\delta_{bc}$. These perturbations are usually neglected in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c60f57ae452bc9e470199b12f8758100
https://hal.archives-ouvertes.fr/hal-03034773

Shift-symmetric orbital inflation: Single field or multifield?

Autor: Edmund J. Copeland, Ana Achúcarro, Yvette Welling, Dong-Gang Wang, Gonzalo A. Palma, Oksana Iarygina

Publikováno v: Physical Review D
Report No.: DESY-19-015
Physical review / D 102(2), 021302 (2020). doi:10.1103/PhysRevD.102.021302

Physical review / D D 102(2), 021302 (2020). doi:10.1103/PhysRevD.102.021302
We present a new class of two-field inflationary attractor models, known as shift-symmetric orbital inflation, whose behavior is strongly multifield but whose predictio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3236036acc89701ea818dcf69ac6839
https://doi.org/10.1103/physrevd.102.021302

Generating PBHs and small-scale GWs in two-field models of inflation

Autor: Alexei A. Starobinsky, Matteo Braglia, L. Sriramkumar, Dhiraj Kumar Hazra, Fabio Finelli, George F. Smoot

Publikováno v: JCAP
JCAP, 2020, 08, pp.001. ⟨10.1088/1475-7516/2020/08/001⟩
Journal of Cosmology and Astroparticle Physics

Primordial black holes (PBHs) generated by gravitational collapse of large primordial overdensities can be a fraction of the observed dark matter. In this paper, we introduce a mechanism to produce a large peak in the primordial power spectrum (PPS)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96c6afac537a541a64c9ceef026c40af
https://hdl.handle.net/11585/812939

Scale-invariant alternatives to general relativity. III. The inflation-dark energy connection

Autor: Martin Pauly, Javier Rubio, Georgios K. Karananas, S. Casas

Publikováno v: Phys.Rev.D
Phys.Rev.D, 2019, 99 (6), pp.063512. ⟨10.1103/PhysRevD.99.063512⟩
Physical Review D
Physical Review D, American Physical Society, 2019, 99 (6), pp.063512. ⟨10.1103/PhysRevD.99.063512⟩

We discuss the cosmological phenomenology of biscalar-tensor models displaying a maximally symmetric Einstein-frame kinetic sector and constructed on the basis of scale symmetry and volume-preserving diffeomorphisms. These theories contain a single d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83073b2a6de397713fabd775ce1ac623
https://hal.science/hal-01937833/file/PhysRevD.99.063512.pdf

Exploring cosmic origins with CORE: Inflation

Autor: F. Finelli, M. Bucher, A. Achúcarro, M. Ballardini, N. Bartolo, D. Baumann, S. Clesse, J. Errard, W. Handley, M. Hindmarsh, K. Kiiveri, M. Kunz, A. Lasenby, M. Liguori, D. Paoletti, C. Ringeval, J. Väliviita, B. van Tent, V. Vennin, P. Ade, R. Allison, F. Arroja, M. Ashdown, A.J. Banday, R. Banerji, J.G. Bartlett, S. Basak, P. de Bernardis, M. Bersanelli, A. Bonaldi, J. Borril, F.R. Bouchet, F. Boulanger, T. Brinckmann, C. Burigana, A. Buzzelli, Z.-Y. Cai, M. Calvo, C.S. Carvalho, G. Castellano, A. Challinor, J. Chluba, I. Colantoni, A. Coppolecchia, M. Crook, G. D'Alessandro, G. D'Amico, J. Delabrouille, V. Desjacques, G. De Zotti, J.M. Diego, E. Di Valentino, S. Feeney, J.R. Fergusson, R. Fernandez-Cobos, S. Ferraro, F. Forastieri, S. Galli, J. García-Bellido, G. de Gasperis, R.T. Génova-Santos, M. Gerbino, J. González-Nuevo, S. Grandis, J. Greenslade, S. Hagstotz, S. Hanany, D.K. Hazra, C. Hernández-Monteagudo, C. Hervias-Caimapo, M. Hills, E. Hivon, B. Hu, T. Kisner, T. Kitching, E.D. Kovetz, H. Kurki-Suonio, L. Lamagna, M. Lattanzi, J. Lesgourgues, A. Lewis, V. Lindholm, J. Lizarraga, M. López-Caniego, G. Luzzi, B. Maffei, N. Mandolesi, E. Martínez-González, C.J.A.P. Martins, S. Masi, D. McCarthy, S. Matarrese, A. Melchiorri, J.-B. Melin, D. Molinari, A. Monfardini, P. Natoli, M. Negrello, A. Notari, F. Oppizzi, A. Paiella, E. Pajer, G. Patanchon, S.P. Patil, M. Piat, G. Pisano, L. Polastri, G. Polenta, A. Pollo, V. Poulin, M. Quartin, A. Ravenni, M. Remazeilles, A. Renzi, D. Roest, M. Roman, J.A. Rubiño-Martin, L. Salvati, A.A. Starobinsky, A. Tartari, G. Tasinato, M. Tomasi, J. Torrado, N. Trappe, T. Trombetti, M. Tucci, C. Tucker, J. Urrestilla, R. van de Weygaert, P. Vielva, N. Vittorio, K. Young, M. Zannoni

Publikováno v: Scopus
NASA Astrophysics Data System
JCAP
JCAP, 2018, 04, pp.016. ⟨10.1088/1475-7516/2018/04/016⟩
Journal of Cosmology and Astroparticle Physics, 04, 016
RUO. Repositorio Institucional de la Universidad de Oviedo
instname
Journal of Cosmology and Astroparticle Physics, 2018(4):016. IOP Publishing Ltd.
Journal of Cosmology and Astroparticle Physics. IOP PUBLISHING LTD
ISSUE=4;ISSN=1475-7516;TITLE=Journal of Cosmology and Astroparticle Physics
Journal of Cosmology and Astroparticle Physics
Journal of Cosmology and Astroparticle Physics, 2018, 04, pp.016. ⟨10.1088/1475-7516/2018/04/016⟩
CORE Collaboration & Vennin, V 2018, ' Exploring Cosmic Origins with CORE : inflation ', Journal of Cosmology and Astroparticle Physics, vol. 2018, no. 04, 016 . https://doi.org/10.1088/1475-7516/2018/04/016
Bonaldi, A, Chluba, J, Hervias Caimapo, C, Remazeilles, M & et al 2018, ' Exploring Cosmic Origins with CORE: Inflation ', Journal of Cosmology and Astroparticle Physics . https://doi.org/10.1088/1475-7516/2018/04/016

We forecast the scientific capabilities to improve our understanding of cosmic inflation of CORE, a proposed CMB space satellite submitted in response to the ESA fifth call for a medium-size mission opportunity. The CORE satellite will map the CMB an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29621d3f76963de44371a306be7a3e80
https://cronfa.swan.ac.uk/Record/cronfa40128/Download/0040128-23052018124145.pdf