書誌事項
- タイトル別名
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- Kiyotugu HIRAYAMA's study of stellar evolution
- ヒラヤマ キヨツグ ノ コウセイ シンカロン ケンキュウ
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抄録
Kiyotugu HIRAYAMA's role in the history of Astronomy in Japan is examined in light of his work on the families of asteroid. In addition to this work, he also published two papers about stellar evolution in 1931. In these he suggested the capture hypothesis theory whereby a star gets mass and energy from the nebulae which captured it. This theory differed significantly from the accepted contemporary theory in two points related to energy source and evolution. The theory linked the source of the energy in stars with Mayer's fall theory and Helmholtz's contraction theory. HIRAYAMA thought that this theory could explain the formation of all stars, including binary stars and star clusters, and even the whole solar system. At that time in Japan, S, TAKEDA's studies of stellar evolution applied mass annihilation theory based on relativity theory. However K. HIRAYAMA didn't apply annihilation theory. Given a dynamic astronomical point of view, it was natural for K. HIRAYAMA to have applied the capture hypothesis rather than the mass annihilation theory. This theory seemed to be farsighted in terms of regarding the solar system formation as a common star one, but we couldn't reduce this so simply, because he suggested his theory on the condition that many stars were in proximity at the formation of binary stars, and star cluster. His theory is similar to Shinzo SHINJYO's theory in that he applied his theory to all stellar evolution. It is interesting to note that they went on to form the non-plusation theory of Cepheid variables from this theory.
収録刊行物
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- 科学史研究
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科学史研究 39 (213), 20-29, 2000
日本科学史学会
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詳細情報 詳細情報について
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- CRID
- 1390007670440089088
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- NII論文ID
- 110006439103
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- NII書誌ID
- AN10104688
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- ISSN
- 00227692
- 24350524
- 21887535
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- NDL書誌ID
- 5302961
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可