scholarly journals Thermal Sunyaev-Zel’dovich effect in the intergalactic medium with primordial magnetic fields

2017 ◽  
Vol 96 (12) ◽  
Author(s):  
Teppei Minoda ◽  
Kenji Hasegawa ◽  
Hiroyuki Tashiro ◽  
Kiyotomo Ichiki ◽  
Naoshi Sugiyama
Keyword(s):  
Magnetic Fields ◽  
Intergalactic Medium ◽  
Sunyaev Zel'dovich Effect ◽  
Primordial Magnetic Fields

scholarly journals Thermal Sunyaev–Zel’dovich Effect in the IGM due to Primordial Magnetic Fields

Galaxies ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 143 ◽  
Author(s):  
Teppei Minoda ◽  
Kenji Hasegawa ◽  
Hiroyuki Tashiro ◽  
Kiyotomo Ichiki ◽  
Naoshi Sugiyama
Keyword(s):  
Magnetic Fields ◽  
Power Spectrum ◽  
Mass Density ◽  
Temperature Anisotropy ◽  
Angular Power Spectrum ◽  
Stringent Constraint ◽  
Small Scales ◽  
Sunyaev Zel'dovich Effect ◽  
Primordial Magnetic Fields ◽  
Initial Power

In the present universe, magnetic fields exist with various strengths and on various scales. One possible origin of these cosmic magnetic fields is the primordial magnetic fields (PMFs) generated in the early universe. PMFs are considered to contribute to matter density evolution via Lorentz force and the thermal history of intergalactic medium (IGM) gas due to ambipolar diffusion. Therefore, information about PMFs should be included in the temperature anisotropy of the Cosmic Microwave Background through the thermal Sunyaev–Zel’dovich (tSZ) effect in IGM. In this article, given an initial power spectrum of PMFs, we show the spatial fluctuation of mass density and temperature of the IGM and tSZ angular power spectrum created by the PMFs. Finally, we find that the tSZ angular power spectrum induced by PMFs becomes significant on small scales, even with PMFs below the observational upper limit. Therefore, we conclude that the measurement of tSZ anisotropy on small scales will provide the most stringent constraint on PMFs.

scholarly journals Origin of primordial magnetic fields

2008 ◽  
Vol 77 (4) ◽  
Author(s):  
Rafael S. de Souza ◽  
Reuven Opher
Keyword(s):  
Magnetic Fields ◽  
Primordial Magnetic Fields

scholarly journals Inflation from charged scalar and primordial magnetic fields?

2010 ◽  
Vol 81 (8) ◽  
Author(s):  
Razieh Emami ◽  
Hassan Firouzjahi ◽  
M. Sadegh Movahed
Keyword(s):  
Magnetic Fields ◽  
Charged Scalar ◽  
Primordial Magnetic Fields

scholarly journals Primordial magnetic fields from dark energy

2002 ◽  
Vol 542 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Da-Shin Lee ◽  
Wolung Lee ◽  
Kin-Wang Ng
Keyword(s):  
Dark Energy ◽  
Magnetic Fields ◽  
Primordial Magnetic Fields
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