Are short GRBs really hard?

T. Sakamoto; L. Barbier; S. Barthelmy; J. Cummings; E. Fenimore; N. Gehrels; D. Hullinger; H. Krimm; C. Markwardt; D. Palmer; A. Parsons; G. Sato; J. Tueller; R. Aptekar; T. Cline; S. Golenetskii; E. Mazets; V. Pal'Shin; G. Ricker; D. Lamb; J. L. Atteia; N. Kawai

doi:10.1063/1.2207855

Are short GRBs really hard?

T. Sakamoto^*, L. Barbier, S. Barthelmy, J. Cummings, E. Fenimore, N. Gehrels, D. Hullinger, H. Krimm, C. Markwardt, D. Palmer, A. Parsons, G. Sato, J. Tueller, R. Aptekar, T. Cline, S. Golenetskii, E. Mazets, V. Pal'Shin, G. Ricker, D. LambJ. L. Atteia, N. Kawai

^*この研究の対応する著者

理工学術院総合研究所

研究成果: Conference contribution

抄録

Thanks to the rapid position notice and response by HETE-2 and Swift, the X-ray afterglow emissions have been found for four recent short gamma-ray bursts (GRBs; GRB 050509b, GRB 050709, GRB 050724, and GRB 050813). The positions of three out of four short GRBs are coincident with galaxies with no current or recent star formation. This discovery tightens the case for a different origin for short and long GRBs. On the other hand, from the prompt emission point of view, a short GRB shows a harder spectrum comparing to that of the long duration GRBs according to the BATSE observations. We investigate the prompt emission properties of four short GRBs observed by Swift/BAT. We found that the hardness of all four BAT short GRBs is in between the BATSE range for short and long GRBs. We will discuss the spectral properties of short GRBs including the short GRB sample of Konus-Wind and HETE-2 to understand the hard nature of the BATSE short GRBs.

本文言語	English
ホスト出版物のタイトル	AIP Conference Proceedings
ページ	43-47
ページ数	5
巻	836
DOI	https://doi.org/10.1063/1.2207855
出版ステータス	Published - 2006 5月 19
イベント	GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C. 継続期間: 2005 11月 29 → 2005 12月 2

Other

Other	GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference
City	Washington, D.C.
Period	05/11/29 → 05/12/2

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1063/1.2207855

他のファイルとリンク

引用スタイル

Sakamoto, T., Barbier, L., Barthelmy, S., Cummings, J., Fenimore, E., Gehrels, N., Hullinger, D., Krimm, H., Markwardt, C., Palmer, D., Parsons, A., Sato, G., Tueller, J., Aptekar, R., Cline, T., Golenetskii, S., Mazets, E., Pal'Shin, V., Ricker, G., ... Kawai, N. (2006). Are short GRBs really hard? In AIP Conference Proceedings (Vol. 836, pp. 43-47) https://doi.org/10.1063/1.2207855

Sakamoto, T, Barbier, L, Barthelmy, S, Cummings, J, Fenimore, E, Gehrels, N, Hullinger, D, Krimm, H, Markwardt, C, Palmer, D, Parsons, A, Sato, G, Tueller, J, Aptekar, R, Cline, T, Golenetskii, S, Mazets, E, Pal'Shin, V, Ricker, G, Lamb, D, Atteia, JL & Kawai, N 2006, Are short GRBs really hard? in AIP Conference Proceedings. vol. 836, pp. 43-47, GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference, Washington, D.C., 05/11/29. https://doi.org/10.1063/1.2207855

@inproceedings{7cde911ed45c4e9ab029f8a9b85afa25,

title = "Are short GRBs really hard?",

abstract = "Thanks to the rapid position notice and response by HETE-2 and Swift, the X-ray afterglow emissions have been found for four recent short gamma-ray bursts (GRBs; GRB 050509b, GRB 050709, GRB 050724, and GRB 050813). The positions of three out of four short GRBs are coincident with galaxies with no current or recent star formation. This discovery tightens the case for a different origin for short and long GRBs. On the other hand, from the prompt emission point of view, a short GRB shows a harder spectrum comparing to that of the long duration GRBs according to the BATSE observations. We investigate the prompt emission properties of four short GRBs observed by Swift/BAT. We found that the hardness of all four BAT short GRBs is in between the BATSE range for short and long GRBs. We will discuss the spectral properties of short GRBs including the short GRB sample of Konus-Wind and HETE-2 to understand the hard nature of the BATSE short GRBs.",

keywords = "Prompt gamma-ray emission, Short GRBs",

author = "T. Sakamoto and L. Barbier and S. Barthelmy and J. Cummings and E. Fenimore and N. Gehrels and D. Hullinger and H. Krimm and C. Markwardt and D. Palmer and A. Parsons and G. Sato and J. Tueller and R. Aptekar and T. Cline and S. Golenetskii and E. Mazets and V. Pal'Shin and G. Ricker and D. Lamb and Atteia, {J. L.} and N. Kawai",

year = "2006",

month = may,

day = "19",

doi = "10.1063/1.2207855",

language = "English",

isbn = "0735403260",

volume = "836",

pages = "43--47",

booktitle = "AIP Conference Proceedings",

note = "GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference ; Conference date: 29-11-2005 Through 02-12-2005",