The Complete Spectral Catalog of Bright BATSE Gamma‐Ray Bursts

Kaneko, Yuki; Preece, R.; Briggs, M. S.; Pačiesas, W. S.; Meegan, C.; Band, D. L.

doi:10.1086/505911

Cited by 466 publications

(768 citation statements)

References 38 publications

(1 reference statement)

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“…Five percent of the bursts in this sample are short GRBs (with durations less than 2 s). Kaneko et al (2006) find that the most common value for the low-energy slope of the photon spectra is α ∼ −1, and therefore the distribution of the low-energy indices is not consistent with the value predicted by the standard synchrotron emission model in fast cooling regime, -3/2 (Sari et al 1998). The distribution of the peak energies of the time-integrated spectra of long BATSE GRBs has a maximum at ∼250 keV and a very narrow width 100 keV.…”

Section: Grb Samplesmentioning

confidence: 66%

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The spectral catalogue of INTEGRAL gamma-ray bursts

Bošnjak

Götz

Bouchet

et al. 2013

A&A

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We present the updated INTEGRAL catalogue of gamma-ray bursts (GRBs) observed between December 2002 and February 2012. The catalogue contains the spectral parameters for 59 GRBs localized by the INTEGRAL Burst Alert System (IBAS). We used the data from the two main instruments on board the INTEGRAL satellite: the spectrometer SPI (SPectrometer on INTEGRAL) nominally covering the energy range 20 keV−8 MeV, and the imager IBIS (the Imager on Board the INTEGRAL Satellite) operating in the range from 15 keV to 10 MeV. For the spectral analysis we applied a new data extraction technique, developed to explore the energy regions of highest sensitivity for both instruments, SPI and IBIS. It allowed us to analyse the GRB spectra over a broad energy range and to determine the bursts' spectral peak energies. The spectral analysis was performed on the whole sample of GRBs triggered by IBAS, including all the events observed in the period December 2002 to February 2012. The catalogue contains the trigger times, burst coordinates, positional errors, durations, and peak fluxes for 28 unpublished GRBs observed between September 2008 and February 2012. The light curves in the 20−200 keV energy band of these events were derived using IBIS data. We compare the prompt emission properties of the INTEGRAL GRB sample with the BATSE and Fermi samples.

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Section: Grb Samplesmentioning

confidence: 66%

“…A systematic spectral analysis of a subsample of 350 bright GRBs selected from the complete set of 2704 BATSE GRBs, in the energy range ∼30 keV−2 MeV observed by BATSE was performed by Kaneko et al (2006;see also Preece et al 2000). Five percent of the bursts in this sample are short GRBs (with durations less than 2 s).…”

Section: Grb Samplesmentioning

confidence: 99%

The spectral catalogue of INTEGRAL gamma-ray bursts

Bošnjak

Götz

Bouchet

et al. 2013

A&A

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“…of some GBM-GRBs extends to higher energies compared to BATSE (Kaneko et al 2006). However, this is of no surprise as Amati et al (2002) demonstrated that bursts with higher fluence, i.e.…”

Section: Analysis Of the Gbm Datamentioning

confidence: 99%

Rest-frame properties of 32 gamma-ray bursts observed by theFermiGamma-ray Burst Monitor

Gruber

Greiner

Kienlin

et al. 2011

A&A

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Aims. In this paper we study the main spectral and temporal properties of gamma-ray bursts (GRBs) observed by Fermi/GBM. We investigate these key properties of GRBs in the rest-frame of the progenitor and test for possible intra-parameter correlations to better understand the intrinsic nature of these events. Methods. Our sample comprises 32 GRBs with measured redshift that were observed by GBM until August 2010. 28 of them belong to the long-duration population and 4 events were classified as short/hard bursts. For all of these events we derive, where possible, the intrinsic peak energy in the νF ν spectrum (E p,rest ), the duration in the rest-frame, defined as the time in which 90% of the burst fluence was observed (T 90,rest ) and the isotropic equivalent bolometric energy (E iso ). Results. The distribution of E p,rest has mean and median values of 1.1 MeV and 750 keV, respectively. A log-normal fit to the sample of long bursts peaks at ∼800 keV. No high-E p population is found but the distribution is biased against low E p values. We find the lowest possible E p that GBM can recover to be ≈15 keV. The T 90,rest distribution of long GRBs peaks at ∼10 s. The distribution of E iso has mean and median values of 8.9 × 10 52 erg and 8.2 × 10 52 erg, respectively. We confirm the tight correlation between E p,rest and E iso (Amati relation) and the one between E p,rest and the 1-s peak luminosity (L p ) (Yonetoku relation). Additionally, we observe a parameter reconstruction effect, i.e. the low-energy power law index α gets softer when E p is located at the lower end of the detector energy range. Moreover, we do not find any significant cosmic evolution of neither E p,rest nor T 90,rest .

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“…Most bright GRB spectra can be fit by the Band model (Band et al 1993) which is an empirical function comprising two smoothly broken power-laws, with the distributions of the low energy and high energy power-law photon indices around values of α = −1 and β = −2.2 respectively (Kaneko et al 2006). A thermal component of the prompt emission has also been proposed (e.g.…”

Section: Introductionmentioning

confidence: 99%

High energy emission and polarisation limits for the INTEGRAL burst GRB 061122

McGlynn

Foley

McBreen

et al. 2009

A&A

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Context. GRB 061122 is one of the brightest GRBs detected within INTEGRAL's field of view to date, with a peak flux (20-200 keV) of 32 photons cm −2 s −1 and fluence of 2 × 10 −5 erg cm −2 . The Spectrometer aboard INTEGRAL, SPI, can measure linear polarisation in bright GRBs through the process of Compton scattering in the Germanium detectors. Polarisation measurements of the prompt emission are relatively rare. The spectral and polarisation results can be combined to provide vital information about the circumburst region. Aims. The two γ-ray detectors on INTEGRAL were used to investigate the spectral characteristics of GRB 061122. A search for linear polarisation in the prompt emission was carried out on GRB 061122 using the SPI multiple event data in the energy range 100 keV-1 MeV. The X-ray properties were examined using data from the X-Ray Telescope (XRT) on Swift. Methods. The γ-ray spectral and temporal properties of GRB 061122 were determined using IBIS and SPI. The afterglow properties were obtained using XRT. The multiple event data of GRB 061122 from SPI were analysed and compared with the predicted instrument response obtained from Monte-Carlo simulations using the GEANT 4 INTEGRAL mass model. The χ 2 distributions between the real and simulated data as a function of the percentage polarisation and polarisation angle were calculated and limits on the level and angle of polarisation were obtained from the best-fit value of χ 2 . Results. The prompt spectrum was best fit by a combination of a blackbody and a power-law model (the quasithermal model), with evidence for high energy emission continuing above 8 MeV. A pseudo-redshift value of pz = 0.95 ± 0.18 was determined using the spectral fit parameters. The isotropic energy at this pseudo-redshift is 8.5 × 10 52 erg. The jet opening angle was estimated to be smaller than 2.8 • or larger than 11.9 • from the X-ray lightcurve. An upper limit of 60% polarisation was determined for the prompt emission of GRB 061122, using the multiple event data from the spectrometer on INTEGRAL. Conclusions. The high energy emission observed in the spectrum may be due to the reverse shock interacting with the GRB ejecta when it is decelerated by the circumburst medium. This behaviour has been observed in a small fraction of GRBs to date, but is expected to be more commonly observed by the Fermi Gamma-ray Space Telescope. The conditions for polarisation are met if the jet opening angle is less than 2.8 • , but further constraints on the level of polarisation are not possible.

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The Complete Spectral Catalog of Bright BATSE Gamma‐Ray Bursts

Cited by 466 publications

References 38 publications

The spectral catalogue of INTEGRAL gamma-ray bursts

The spectral catalogue of INTEGRAL gamma-ray bursts

Rest-frame properties of 32 gamma-ray bursts observed by theFermiGamma-ray Burst Monitor

High energy emission and polarisation limits for the INTEGRAL burst GRB 061122

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