Gamma-Ray Burst Formation Rate Inferred from the Spectral Peak EnergyndashPeak Luminosity Relation
Astrophysical Journal 609 巻 2 号
935-951 頁
2004-06 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Gamma-Ray Burst Formation Rate Inferred from the Spectral Peak EnergyndashPeak Luminosity Relation
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| 作成者 |
Yonetoku D.
Murakami T.
Nakamura T.
Yamazaki Ryo
Inoue A.K.
Ioka K.
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| 収録物名 |
Astrophysical Journal
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| 巻 | 609 |
| 号 | 2 |
| 開始ページ | 935 |
| 終了ページ | 951 |
| 抄録 |
We estimate a gamma-ray burst (GRB) formation rate based on the new relation between the spectral peak energy (Ep) and the peak luminosity. The new relation is derived by combining the data of Ep and the peak luminosities by BeppoSAX and BATSE, and it looks considerably tighter and more reliable than the relations suggested by the previous works. Using the new Ep-luminosity relation, we estimate redshifts of the 689 GRBs without known distances in the BATSE catalog and derive a GRB formation rate as a function of the redshift. For the redshift range of 0 ≤ z ≤ 2, the GRB formation rate increases and is well correlated with the star formation rate, while it keeps constant toward z ∼ 12. We also discuss the luminosity function and the redshift dependence of the intrinsic luminosity.
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| 著者キーワード |
early universe
gamma rays
bursts
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| NDC分類 |
天文学・宇宙科学 [ 440 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
University of Chicago Press
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| 発行日 | 2004-06 |
| 権利情報 |
Copyright (c) 2004 The American Astronomical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0004-637X
[DOI] 10.1086/421285
[DOI] http://dx.doi.org/10.1086/421285
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