Primordial density perturbations from magnetic fields

被引：9

作者：

Adi, Tal ^{[1
]}

Cruz, Hector Afonso G. ^{[2
]}

Kamionkowski, Marc ^{[2
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

[2] Johns Hopkins Univ, William H Miller III Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 02期

基金：

美国国家科学基金会;

关键词：

REIONIZATION;

D O I：

10.1103/PhysRevD.108.023521

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Perturbations to the cosmic baryon density-and thus to the total-matter density-can be induced by magnetohydronamic forces if there are primordial magnetic fields. The power spectrum for these density perturbations was first provided in 1996, but without much in the way of detail in the derivation, and there has been confusion in the intervening years about this calculation. In this brief note, we rederive this power spectrum using modern conventions, provide a simplified result, and identify some of the discrepancies in the literature.

引用

页数：4

共 20 条

[1]

Adi T, 2023, Arxiv, DOI arXiv:2305.06440

[2] The Cosmic Linear Anisotropy Solving System (CLASS). Part II: Approximation schemes [J].

Blas, Diego ;

Lesgourgues, Julien ;

Tram, Thomas .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (07)

[3] Magnification bias as a novel probe for primordial magnetic fields [J].

Camera, S. ;

Fedeli, C. ;

Moscardini, L. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2014, (03)

[4] Effects of primordial magnetic field on the formation rate of dark matter halos [J].

Cheera, Varalakshmi ;

Nigam, Rahul .

ASTROPHYSICS AND SPACE SCIENCE, 2018, 363 (05)

[5] Constraining primordial magnetic fields with future cosmic shear surveys [J].

Fedeli, C. ;

Moscardini, L. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2012, (11)

[6] Large scale magnetic fields: Density power spectrum in redshift space [J].

Gopal, R ;

Sethi, SK .

JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2003, 24 (3-4) :51-67

[7] Generation of density perturbations by primordial magnetic fields [J].

Kim, EJ ;

Olinto, AV ;

Rosner, R .

ASTROPHYSICAL JOURNAL, 1996, 468 (01) :28-50

[8] Reionization constraints on primordial magnetic fields [J].

Pandey, Kanhaiya L. ;

Choudhury, T. Roy ;

Sethi, Shiv K. ;

Ferrara, Andrea .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 451 (02) :1692-1700

[9] PROBING PRIMORDIAL MAGNETIC FIELDS USING Lyα CLOUDS [J].

Pandey, Kanhaiya L. ;

Sethi, Shiv K. .

ASTROPHYSICAL JOURNAL, 2013, 762 (01)

[10] THEORETICAL ESTIMATES OF TWO-POINT SHEAR CORRELATION FUNCTIONS USING TANGLED MAGNETIC FIELDS [J].

Pandey, Kanhaiya L. ;

Sethi, Shiv K. .

ASTROPHYSICAL JOURNAL, 2012, 748 (01)

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