| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Possible observational evidence for the θ-2 angular distribution of the opening half-angle of gamma-ray burst jets |
|
言語 |
en |
| 作成者 |
Yonetoku, Daisuke
Yamazaki, Ryo
Nakamura, Takashi
Murakami, Toshio
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2005 Royal Astronomical Society |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
gamma-rays: bursts |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
gamma-rays: observations |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
gamma-rays: theory |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
440 |
| 内容記述 |
|
|
内容記述 |
We propose a method to estimate the jet opening half-angle of gamma-ray bursts (GRBs) using the spectral peak energy (Ep)–peak luminosity relation (the so-called Yonetoku relation) as well as the Ep–collimation-corrected gamma-ray energy relation (the so-called Ghirlanda relation). For bursts with known jet break times and redshifts, we have compared the derived jet opening half-angle with that measured and found that the differences are within a factor of 2. We apply the method to 689 long GRBs. We have found that the distribution function of the derived jet opening half-angle obeys f(θj) θ-2.2±0.2j, although a lognormal fit is also possible. θ-2 distribution is compatible with the structured jet model. From the distribution function we have found that the beaming correction for the rate of GRBs is ~340, which means ~10-5 yr-1 galaxy-1 or only one in 102 Type Ib/c supernovae. We have also found the evolution of the distribution function as a function of the redshift. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Blackwell |
| 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 |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1111/j.1365-2966.2005.09398.x |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1111/j.1365-2966.2005.09398.x |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0035-8711 |
| 開始ページ |
|
|
開始ページ |
1114 |
| 書誌情報 |
Monthly Notices of the Royal Astronomical Soceity
Monthly Notices of the Royal Astronomical Soceity
巻 362,
号 3,
p. 1114-1118,
発行日 2005-09
|
| 旧ID |
14774 |
MNRAS_362_1114.pdf (256.5 KB)
