Statistics of baryon isocurvature perturbations in the inflationary universe

Kazuhiro Yamamoto, Michiyasu Nagasawa, Misao Sasaki, Hiroshi Suzuki, Jun Ichi Yokoyama

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

The statistical distribution of baryon-number fluctuations, which may provide a proper initial condition for the minimal isocurvature scenario, is carefully investigated both analytically and numerically. For fluctuations associated with power-law inflation, we find that the distribution is highly non-Gaussian on scales of pregalactic star formation while it is Gaussian on scales of large-scale structure. On the other hand, in the pure de Sitter universe, it is shown to be Gaussian on any astrophysical scale. It is also discussed why the Gaussian nature appears in these models.

元の言語英語
ページ(範囲)4206-4217
ページ数12
ジャーナルPhysical Review D
46
発行部数10
DOI
出版物ステータス出版済み - 1 1 1992
外部発表Yes

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baryons
universe
statistics
perturbation
statistical distributions
star formation
astrophysics

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

これを引用

Statistics of baryon isocurvature perturbations in the inflationary universe. / Yamamoto, Kazuhiro; Nagasawa, Michiyasu; Sasaki, Misao; Suzuki, Hiroshi; Yokoyama, Jun Ichi.

:: Physical Review D, 巻 46, 番号 10, 01.01.1992, p. 4206-4217.

研究成果: ジャーナルへの寄稿記事

Yamamoto, Kazuhiro ; Nagasawa, Michiyasu ; Sasaki, Misao ; Suzuki, Hiroshi ; Yokoyama, Jun Ichi. / Statistics of baryon isocurvature perturbations in the inflationary universe. :: Physical Review D. 1992 ; 巻 46, 番号 10. pp. 4206-4217.
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AU - Sasaki, Misao

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AU - Yokoyama, Jun Ichi

PY - 1992/1/1

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