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ID 20811
本文ファイル
著者
Tomita, Kenji
NDC
物理学
抄録(英)
The evolution of a wall-like structure in the universe is investigated by assuming a simplified model of a domain wall. The domain wall is approximated as a thin spherical shell with domain wall-like matter, which is assumed to interact with dust-like dark matter in an entirely inelastic manner, and its motion in an expanding universe is numerically studied in the general-relativistic treatment. We evaluate the lifetime of the wall, which is defined as the characteristic time for the wall to shrink due to its own tension. It is necessary that this time is not smaller than the cosmic age, in order that the walls avoid the collapse to the present time and play an important role in the structure formation of the universe. It is shown that, in spite of the above interaction, the strong restriction is imposed on the surface density of the domain walls and the allowed values are too small to have any influences on the background model.
掲載誌名
Progress of Theoretical Physics
86巻
5号
開始ページ
1003
終了ページ
1020
出版年月日
1991
出版者
日本物理学会 ; 京都大学基礎物理学研究所
ISSN
0033-068X
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) Progress of Theoretical Physics 1991
関連情報URL
部局名
理学研究科



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