| アイテムタイプ |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2011-02-25 |
| タイトル |
|
|
タイトル |
Observational Constraints on Brans-Dicke Theory with a Variable Cosmological Term |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
Thushari, E.P.B.A.
中村, 理央
Hashimoto, Masa-aki
荒井, 賢三
|
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
We investigate Big-Bang nucleosynthesis in the Brans-Dicke model with a variable cosmological term (BDA) for the coupling constant ω=10^4. The model parameters are constrained from comparison between the resulting abundance of ^4He, D and ^7Li and the observed ones. Furthermore, we examine the magnitude redshift (m-z) relation for the BDA with and without another constant cosmological term in a flat universe. Observational data of Type Ia Supernovae (SNIa) are used in the redshift range 0.01<z<2. It is found that BDA is inconsistent with the present accelerating universe but the model with a constant cosmological term with the value 0.7 can explain the SNIa data. The model parameters are insensitive to the m-z relation. |
| 書誌情報 |
en : Physics Reports of Kumamoto University
巻 13,
号 2,
p. 217-226,
発行年 2010
|
| ISSN |
|
|
収録物識別子 |
0303-4070 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00774081 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 日本十進分類法 |
|
|
主題Scheme |
NDC |
|
主題 |
443.5 |
| 出版者 |
|
|
出版者 |
熊本大学 |
|
言語 |
ja |
PR0013_217-226.pdf (2.0 MB)
