ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  1. 学術雑誌論文等

Spectral Evolutions in Gamma-Ray Burst Exponential Decays Observed with Suzaku WAM

https://hiroshima.repo.nii.ac.jp/records/2008727
https://hiroshima.repo.nii.ac.jp/records/2008727
51a5b0b7-26f7-41ec-b748-df9a4c52a47a
名前 / ファイル ライセンス アクション
PASJ_64_2_26.pdf PASJ_64_2_26.pdf (283.0 KB)
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 Spectral Evolutions in Gamma-Ray Burst Exponential Decays Observed with Suzaku WAM
言語 en
作成者 Tashiro, Makoto S.

× Tashiro, Makoto S.

en Tashiro, Makoto S.

Search repository
Onda, Kaori

× Onda, Kaori

en Onda, Kaori

Search repository
Yamaoka, Kazutaka

× Yamaoka, Kazutaka

en Yamaoka, Kazutaka

Search repository
Ohno, Masahiro

× Ohno, Masahiro

en Ohno, Masahiro

Search repository
Sugita, Satoshi

× Sugita, Satoshi

en Sugita, Satoshi

Search repository
Uehara, Takeshi

× Uehara, Takeshi

en Uehara, Takeshi

Search repository
Seta, Hiromi

× Seta, Hiromi

en Seta, Hiromi

Search repository
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 (c) 2012. Astronomical Society of Japan.
権利情報
権利情報 This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
主題
主題Scheme Other
主題 gamma rays: burst
主題
主題Scheme Other
主題 gamma rays: observation
主題
主題Scheme Other
主題 radiation mechanisms: thermal
主題
主題Scheme Other
主題 blackbody radiation; non-thermal
主題
主題Scheme Other
主題 inverse Compton scattering
主題
主題Scheme NDC
主題 440
内容記述
内容記述 This paper presents a study on the spectral evolution of gamma-ray burst (GRB) prompt emissions observed with the Suzaku Wide-band All-sky Monitor (WAM). By making use of the WAM data archive, 6 bright GRBs exhibiting 7 well-separated fast-rise-exponential-decay (FRED) shaped light curves are presented, and the evaluated exponential decay time constants of the energy-resolved light curves from these FRED peak light curves are shown to indicate significant spectral evolution. The energy dependence of the time constants is well described with a power-law function, τ(⁠E⁠) ∝Eγ⁠, where γ∼−(0.34±0.12) on average, although 5 FRED peaks show a consistent value of γ=−1/2, which is expected in synchrotron or inverse-Compton cooling models. In particular, 2 of the GRBs were located with accuracy sufficient to evaluate the time-resolved spectra with precise energy response matrices. Their behavior in spectral evolution suggests two different origins of emissions. In the case of GRB 081224, the derived 1-s time-resolved spectra are well described by a blackbody radiation model with a power-law component. The derived behavior of cooling is consistent with that expected from radiative cooling or expansion of the emission region. On the other hand, the other 1-s time-resolved spectra from GRB 100707A is well described by a Band GRB model as well as with the thermal model. Although relative poor statistics prevent us to conclude, the energy dependence in the decaying light curve is consistent with that expected in the former emission mechanism model.
言語 en
内容記述
内容記述タイプ Other
内容記述 Part of this work was financially supported by the Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research No. 22340039.
出版者
出版者 Astronomical Society of Japan
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 https://doi.org/10.1093/pasj/64.2.26
関連情報
識別子タイプ arXiv
関連識別子 arXiv:1110.4246v1
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0004-6264
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA1082896X
開始ページ
開始ページ 26-1
書誌情報 Publications of the Astronomical Society of Japan
Publications of the Astronomical Society of Japan

巻 64, 号 2, p. 26-1-26-10, 発行日 2012-04-25
旧ID 46883
戻る
0
views
See details
Views

Versions

Ver.1 2025-02-21 04:33:06.923988
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3