Gamma-ray burst formation rate inferred from the spectral peak energy-peak luminosity relation

D. Yonetoku; T. Murakami; T. Nakamura; R. Yamazaki; A. K. Inoue; K. Ioka

doi:10.1086/421285

Gamma-ray burst formation rate inferred from the spectral peak energy-peak luminosity relation

D. Yonetoku^*, T. Murakami, T. Nakamura, R. Yamazaki, A. K. Inoue, K. Ioka

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

526 Citations (Scopus)

Abstract

We estimate a gamma-ray burst (GRB) formation rate based on the new relation between the spectral peak energy (E_p) and the peak luminosity. The new relation is derived by combining the data of E_p 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 E_p-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 (luminosity evolution).

Original language	English
Pages (from-to)	935-951
Number of pages	17
Journal	Astrophysical Journal
Volume	609
Issue number	2 I
DOIs	https://doi.org/10.1086/421285
Publication status	Published - 2004 Jul 10
Externally published	Yes

Keywords

Early universe
Gamma rays: bursts

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/421285

Cite this

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title = "Gamma-ray burst formation rate inferred from the spectral peak energy-peak luminosity relation",

abstract = "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 (luminosity evolution).",

keywords = "Early universe, Gamma rays: bursts",

author = "D. Yonetoku and T. Murakami and T. Nakamura and R. Yamazaki and Inoue, {A. K.} and K. Ioka",

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T1 - Gamma-ray burst formation rate inferred from the spectral peak energy-peak luminosity relation

AU - Yonetoku, D.

AU - Murakami, T.

AU - Nakamura, T.

AU - Yamazaki, R.

AU - Inoue, A. K.

AU - Ioka, K.

PY - 2004/7/10

Y1 - 2004/7/10

N2 - 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 (luminosity evolution).

AB - 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 (luminosity evolution).

KW - Early universe

KW - Gamma rays: bursts

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Gamma-ray burst formation rate inferred from the spectral peak energy-peak luminosity relation

Abstract

Keywords

ASJC Scopus subject areas

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