Simultaneously solving the H0 and a8 tensions with late dark energy

被引：39
作者：
Heisenberg, Lavinia [1 ,2 ]
Villarrubia-Rojo, Hector [2 ]
Zosso, Jann [2 ]
机构：
[1] Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany
[2] Swiss Fed Inst Technol, Inst Theoret Phys, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland
来源：
PHYSICS OF THE DARK UNIVERSE | 2023年 / 39卷
基金：
欧洲研究理事会; 瑞士国家科学基金会;
关键词：
H0; tension; a8; Dark energy; Model-independent; Late-time universe; HUBBLE CONSTANT;
D O I：
10.1016/j.dark.2022.101163
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In a model independent approach, we derive generic conditions that any late time modification of the ACDM expansion history must satisfy in order to consistently solve both the H0 and the a8 tensions. Our results are fully analytical and the method is merely based on the assumption that the late-time deviations from ACDM remain small. For the concrete case of a dark energy fluid with deviations encoded in the expansion history and the gravitational coupling constant, we present necessary conditions on its equation of state. Solving both the H0 and a8 tensions requires that w(z) must cross the phantom divide if Geff = G. On the other hand, for Geff = G + 8G(z) and w(z) < -1, it < alpha(z)8H(z) H(z) 8G(z) is required that G < 0 at some redshift z.(c) 2022 Published by Elsevier B.V.
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页数：4
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共 48 条
  • [1] Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing
    Abbott, T. M. C.
    Abdalla, F. B.
    Alarcon, A.
    Aleksic, J.
    Allam, S.
    Allen, S.
    Amara, A.
    Annis, J.
    Asorey, J.
    Avila, S.
    Bacon, D.
    Balbinot, E.
    Banerji, M.
    Banik, N.
    Barkhouse, W.
    Baumer, M.
    Baxter, E.
    Bechtol, K.
    Becker, M. R.
    Benoit-Levy, A.
    Benson, B. A.
    Bernstein, G. M.
    Bertin, E.
    Blazek, J.
    Bridle, S. L.
    Brooks, D.
    Brout, D.
    Buckley-Geer, E.
    Burke, D. L.
    Busha, M. T.
    Campos, A.
    Capozzi, D.
    Rosell, A. Carnero
    Kind, M. Carrasco
    Carretero, J.
    Castander, F. J.
    Cawthon, R.
    Chang, C.
    Chen, N.
    Childress, M.
    Choi, A.
    Conselice, C.
    Crittenden, R.
    Crocce, M.
    Cunha, C. E.
    D'Andrea, C. B.
    da Costa, L. N.
    Das, R.
    Davis, T. M.
    Davis, C.
    [J]. PHYSICAL REVIEW D, 2018, 98 (04)
  • [2] Abbott T.M.C., ARXIV
  • [3] Planck 2018 results: VI. Cosmological parameters
    Aghanim, N.
    Akrami, Y.
    Ashdown, M.
    Aumont, J.
    Baccigalupi, C.
    Ballardini, M.
    Banday, A. J.
    Barreiro, R. B.
    Bartolo, N.
    Basak, S.
    Battye, R.
    Benabed, K.
    Bernard, J. -P.
    Bersanelli, M.
    Bielewicz, P.
    Bock, J. J.
    Bond, J. R.
    Borrill, J.
    Bouchet, F. R.
    Boulanger, F.
    Bucher, M.
    Burigana, C.
    Butler, R. C.
    Calabrese, E.
    Cardoso, J. -F.
    Carron, J.
    Challinor, A.
    Chiang, H. C.
    Chluba, J.
    Colombo, L. P. L.
    Combet, C.
    Contreras, D.
    Crill, B. P.
    Cuttaia, F.
    de Bernardis, P.
    de Zotti, G.
    Delabrouille, J.
    Delouis, J. -M.
    Di Valentino, E.
    Diego, J. M.
    Dore, O.
    Douspis, M.
    Ducout, A.
    Dupac, X.
    Dusini, S.
    Efstathiou, G.
    Elsner, F.
    Ensslin, T. A.
    Eriksen, H. K.
    Fantaye, Y.
    [J]. ASTRONOMY & ASTROPHYSICS, 2020, 641
  • [4] Light dark matter: Acommon solution to the lithium and H0 problems
    Alcaniz, Jailson
    Bernal, Nicolas
    Masiero, Antonio
    Queiroz, Farinaldo S.
    [J]. PHYSICS LETTERS B, 2021, 812
  • [5] Alestas G., 2021, ARXIV
  • [6] Late-time approaches to the Hubble tension deforming H(z), worsen the growth tension
    Alestas, George
    Perivolaropoulos, Leandros
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 504 (03) : 3956 - 3962
  • [7] KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics
    Asgari, Marika
    Lin, Chieh-An
    Joachimi, Benjamin
    Giblin, Benjamin
    Heymans, Catherine
    Hildebrandt, Hendrik
    Kannawadi, Arun
    Stolzner, Benjamin
    Troster, Tilman
    van den Busch, Jan Luca
    Wright, Angus H.
    Bilicki, Maciej
    Blake, Chris
    de Jong, Jelte
    Dvornik, Andrej
    Erben, Thomas
    Getman, Fedor
    Hoekstra, Henk
    Koehlinger, Fabian
    Kuijken, Konrad
    Miller, Lance
    Radovich, Mario
    Schneider, Peter
    Shan, HuanYuan
    Valentijn, Edwin
    [J]. ASTRONOMY & ASTROPHYSICS, 2021, 645
  • [8] Ballardini M, 2022, Arxiv, DOI arXiv:2111.09168
  • [9] The H0 tension: ΔGN vs. ΔNeff
    Ballesteros, Guillermo
    Notari, Alessio
    Rompineve, Fabrizio
    [J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2020, (11):
  • [10] Hubble sinks in the low-redshift swampland
    Banerjee, A.
    Cai, H.
    Heisenberg, L.
    Colgain, E. O.
    Sheikh-Jabbari, M. M.
    Yang, T.
    [J]. PHYSICAL REVIEW D, 2021, 103 (08)
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