Structure formation with two periods of inflation: beyond PLaln ΛCDM

被引：5

作者：

Enqvist, Kari ^{[1
,2
]}

Sawala, Till ^{[1
,2
]}

Takahashi, Tomo ^{[3
]}

机构：

[1] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[2] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[3] Saga Univ, Dept Phys, Saga 8408502, Japan

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2020年 / 10期

关键词：

inflation; physics of the early universe; power spectrum; DARK; PERTURBATIONS; SIMULATIONS; GALAXIES; BIG;

D O I：

10.1088/1475-7516/2020/10/053

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss structure formation in models with a spectator field in small-field inflation which accommodate a secondary period of inflation. In such models, subgalactic scale primordial fluctuations can be much suppressed in comparison to the usual power-law Lambda CDM model while the large scale fluctuations remain consistent with current observations. We discuss how a secondary inflationary epoch may give rise to observable features in the small scale power spectrum and hence be tested by the structures in the Local Universe.

引用

页数：19

共 58 条

[1] Planck 2013 results. XVI. Cosmological parameters
Ade, P. A. R.
Aghanim, N.
Armitage-Caplan, C.
Arnaud, M.
Ashdown, M.
Atrio-Barandela, F.
Aumont, J.
Baccigalupi, C.
Banday, A. J.
Barreiro, R. B.
Bartlett, J. G.
Battaner, E.
Benabed, K.
Benoit, A.
Benoit-Levy, A.
Bernard, J. -P.
Bersanelli, M.
Bielewicz, P.
Bobin, J.
Bock, J. J.
Bonaldi, A.
Bond, J. R.
Borrill, J.
Bouchet, F. R.
Bridges, M.
Bucher, M.
Burigana, C.
Butler, R. C.
Calabrese, E.
Cappellini, B.
Cardoso, J. -F.
Catalano, A.
Challinor, A.
Chamballu, A.
Chary, R. -R.
Chen, X.
Chiang, H. C.
Chiang, L. -Y
Christensen, P. R.
Church, S.
Clements, D. L.
Colombi, S.
Colombo, L. P. L.
Couchot, F.
Coulais, A.
Crill, B. P.
Curto, A.
Cuttaia, F.
Danese, L.
Davies, R. D.
[J]. ASTRONOMY & ASTROPHYSICS, 2014, 571
[2] Halo formation in warm dark matter models
Bode, P
Ostriker, JP
Turok, N
[J]. ASTROPHYSICAL JOURNAL, 2001, 556 (01) : 93 - 107
[3] Interacting dark matter disguised as warm dark matter
Boehm, C
Riazuelo, A
Hansen, SH
Schaeffer, R
[J]. PHYSICAL REVIEW D, 2002, 66 (08)
[4] Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations
Bose, Sownak
Hellwing, Wojciech A.
Frenk, Carlos S.
Jenkins, Adrian
Lovell, Mark R.
Helly, John C.
Li, Baojiu
Gonzalez-Perez, Violeta
Gao, Liang
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 464 (04) : 4520 - 4533
[5] Too big to fail? The puzzling darkness of massive Milky Way subhaloes
Boylan-Kolchin, Michael
Bullock, James S.
Kaplinghat, Manoj
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 415 (01) : L40 - L44
[6] Warm FIRE: simulating galaxy formation with resonant sterile neutrino dark matter
Bozek, Brandon
Fitts, Alex
Boylan-Kolchin, Michael
Garrison-Kimmel, Shea
Abazajian, Kevork
Bullock, James S.
Keres, Dusan
Faucher-Giguere, Claude-Andre
Wetzel, Andrew
Feldmann, Robert
Hopkins, Philip F.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 483 (03) : 4086 - 4099
[7] The inflating curvaton
Dimopoulos, Konstantinos
Kohri, Kazunori
Lyth, David H.
Matsuda, Tomohiro
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2012, (03):
[8] Cosmic attractors and gauge hierarchy
Dvali, G
Vilenkin, A
[J]. PHYSICAL REVIEW D, 2004, 70 (06): : 063501 - 1
[9] SUPPRESSING THE FORMATION OF DWARF GALAXIES VIA PHOTOIONIZATION
EFSTATHIOU, G
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 256 (02) : P43 - P47
[10] Adiabatic CMB perturbations in pre-Big-Bang string cosmology
Enqvist, K
Sloth, MS
[J]. NUCLEAR PHYSICS B, 2002, 626 (1-2) : 395 - 409

← 1 2 3 4 5 6 →