The redshift distribution of long gamma-ray bursts

Frédéric Daigne; Elena Rossi; Robert Mochkovitch

doi:10.1063/1.2207952

The redshift distribution of long gamma-ray bursts

Frédéric Daigne
, Elena Rossi
, Robert Mochkovitch

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We study the redshift distribution of Gamma-Ray Bursts (GRBs) with Montecarlo simulations, assuming a comoving rate proportional to the star formation rate. We then use the energy band and flux threshold of several instruments (BATSE, HETE2 and SWIFT) to compute the observed distributions. Model parameters are constrained by fitting simultaneously (i) the log(N)-log(P) diagram of BATSE bursts; (ii) the Epeak distribution of bright BATSE bursts; (iii) the proportion of X-ray rich GRBs and X-ray flashes observed by HETE-2. This allows us to predict the redshift distribution of GRBs detected by SWIFT. We compare it with actual data, in the aim to discriminate between different possible SFRs at high redshift.

Original language	English
Title of host publication	GAMMA-RAY BURSTS IN THE SWIFT ERA
Subtitle of host publication	Sixteenth Maryland Astrophysics Conference
Pages	546-551
Number of pages	6
DOIs	https://doi.org/10.1063/1.2207952
Publication status	Published - 19 May 2006
Externally published	Yes
Event	GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C., United States Duration: 29 Nov 2005 → 2 Dec 2005

Publication series

Name	AIP Conference Proceedings
Volume	836
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

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

Keywords

Age
Cosmology
Evolution
Formation
Gamma-ray bursts
Gamma-ray sources
Origin
Star formation

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10.1063/1.2207952

Cite this

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title = "The redshift distribution of long gamma-ray bursts",

abstract = "We study the redshift distribution of Gamma-Ray Bursts (GRBs) with Montecarlo simulations, assuming a comoving rate proportional to the star formation rate. We then use the energy band and flux threshold of several instruments (BATSE, HETE2 and SWIFT) to compute the observed distributions. Model parameters are constrained by fitting simultaneously (i) the log(N)-log(P) diagram of BATSE bursts; (ii) the Epeak distribution of bright BATSE bursts; (iii) the proportion of X-ray rich GRBs and X-ray flashes observed by HETE-2. This allows us to predict the redshift distribution of GRBs detected by SWIFT. We compare it with actual data, in the aim to discriminate between different possible SFRs at high redshift.",

keywords = "Age, Cosmology, Evolution, Formation, Gamma-ray bursts, Gamma-ray sources, Origin, Star formation",

author = "Fr{\'e}d{\'e}ric Daigne and Elena Rossi and Robert Mochkovitch",

year = "2006",

month = may,

day = "19",

doi = "10.1063/1.2207952",

language = "English",

isbn = "0735403260",

series = "AIP Conference Proceedings",

pages = "546--551",

booktitle = "GAMMA-RAY BURSTS IN THE SWIFT ERA",

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

}

Daigne, F, Rossi, E & Mochkovitch, R 2006, The redshift distribution of long gamma-ray bursts. in GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. AIP Conference Proceedings, vol. 836, pp. 546-551, GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference, Washington, D.C., United States, 29/11/05. https://doi.org/10.1063/1.2207952

TY - GEN

T1 - The redshift distribution of long gamma-ray bursts

AU - Daigne, Frédéric

AU - Rossi, Elena

AU - Mochkovitch, Robert

PY - 2006/5/19

Y1 - 2006/5/19

N2 - We study the redshift distribution of Gamma-Ray Bursts (GRBs) with Montecarlo simulations, assuming a comoving rate proportional to the star formation rate. We then use the energy band and flux threshold of several instruments (BATSE, HETE2 and SWIFT) to compute the observed distributions. Model parameters are constrained by fitting simultaneously (i) the log(N)-log(P) diagram of BATSE bursts; (ii) the Epeak distribution of bright BATSE bursts; (iii) the proportion of X-ray rich GRBs and X-ray flashes observed by HETE-2. This allows us to predict the redshift distribution of GRBs detected by SWIFT. We compare it with actual data, in the aim to discriminate between different possible SFRs at high redshift.

AB - We study the redshift distribution of Gamma-Ray Bursts (GRBs) with Montecarlo simulations, assuming a comoving rate proportional to the star formation rate. We then use the energy band and flux threshold of several instruments (BATSE, HETE2 and SWIFT) to compute the observed distributions. Model parameters are constrained by fitting simultaneously (i) the log(N)-log(P) diagram of BATSE bursts; (ii) the Epeak distribution of bright BATSE bursts; (iii) the proportion of X-ray rich GRBs and X-ray flashes observed by HETE-2. This allows us to predict the redshift distribution of GRBs detected by SWIFT. We compare it with actual data, in the aim to discriminate between different possible SFRs at high redshift.

KW - Age

KW - Cosmology

KW - Evolution

KW - Formation

KW - Gamma-ray bursts

KW - Gamma-ray sources

KW - Origin

KW - Star formation

UR - https://www.scopus.com/pages/publications/33845578304

U2 - 10.1063/1.2207952

DO - 10.1063/1.2207952

M3 - Conference contribution

AN - SCOPUS:33845578304

SN - 0735403260

SN - 9780735403260

T3 - AIP Conference Proceedings

SP - 546

EP - 551

BT - GAMMA-RAY BURSTS IN THE SWIFT ERA

T2 - GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference

Y2 - 29 November 2005 through 2 December 2005

ER -

The redshift distribution of long gamma-ray bursts

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Keywords

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