Skewness of cosmic microwave background anisotropies in an inflationary isocurvature baryon model

Kazuhiro Yamamoto; Misao Sasaki

doi:10.1086/187600

Skewness of cosmic microwave background anisotropies in an inflationary isocurvature baryon model

Kazuhiro Yamamoto, Misao Sasaki

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4 Citations (Scopus)

Abstract

We investigate the cosmic variance of the skewness of the cosmic microwave background (CMB) anisotropies in an inflationary model which leads to the baryon isocurvature scenario for the cosmic structure formation. In this model, the baryon number fluctuations are given by a sinusoidal function of a random Gaussian field. We find that the skewness is very small in comparison with that of the fluctuations which obey Gaussian statistics.

Original language	English
Pages (from-to)	L83-L85
Journal	Astrophysical Journal
Volume	435
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/187600
Publication status	Published - Nov 10 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/187600

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abstract = "We investigate the cosmic variance of the skewness of the cosmic microwave background (CMB) anisotropies in an inflationary model which leads to the baryon isocurvature scenario for the cosmic structure formation. In this model, the baryon number fluctuations are given by a sinusoidal function of a random Gaussian field. We find that the skewness is very small in comparison with that of the fluctuations which obey Gaussian statistics.",

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AU - Sasaki, Misao

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N2 - We investigate the cosmic variance of the skewness of the cosmic microwave background (CMB) anisotropies in an inflationary model which leads to the baryon isocurvature scenario for the cosmic structure formation. In this model, the baryon number fluctuations are given by a sinusoidal function of a random Gaussian field. We find that the skewness is very small in comparison with that of the fluctuations which obey Gaussian statistics.

AB - We investigate the cosmic variance of the skewness of the cosmic microwave background (CMB) anisotropies in an inflationary model which leads to the baryon isocurvature scenario for the cosmic structure formation. In this model, the baryon number fluctuations are given by a sinusoidal function of a random Gaussian field. We find that the skewness is very small in comparison with that of the fluctuations which obey Gaussian statistics.

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Skewness of cosmic microwave background anisotropies in an inflationary isocurvature baryon model

Abstract

All Science Journal Classification (ASJC) codes

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