THE SECOND
                    <i>SWIFT</i>
                    BURST ALERT TELESCOPE GAMMA-RAY BURST CATALOG

Sakamoto, T.; Barthelmy, S. D.; Baumgartner, W. H.; Cummings, J. R.; Fenimore, E. E.; Gehrels, N.; Krimm, H. A.; Markwardt, C. B.; Palmer, D. M.; Parsons, A.; Sato, G.; Stamatikos, M.; Tueller, J.; Ukwatta, T. N.; Zhang, Bing

doi:10.1088/0067-0049/195/1/2

Cited by 230 publications

(234 citation statements)

References 52 publications

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“…As mentioned in Sakamoto et al (2011b), most of the GRB spectra in the BAT energy range can be well-fitted by the simple PL model, and show no significant improvement in their fit when changing to the CPL model. We adopt the same criteria as the one in Sakamoto et al (2011b) and determine when CPL is a better fit when Δχ 2 ≡ χ 2 PL − χ 2 CPL > 6 (and when there is no problem in the CPL fit; see the criteria for acceptable fits below).…”

Section: Figurementioning

confidence: 86%

“…Note that the BAT Crab light curve presented in Wilson-Hodge et al (2011) is based on the survey data process which extracts the counts directly from the sky images. The BAT calibration data base is last updated in 2009 (Sakamoto et al 2011b). Figure 3 shows the differences between the true Crab position (R.A. = 83°.633, decl.=22°.014) and the Crab positions calculated using observations from the five different incident angles taken in 2015.…”

Section: Status Of the In-orbit Calibrationsmentioning

confidence: 99%

“…We adopt the same criteria as the one in Sakamoto et al (2011b) and determine when CPL is a better fit when Δχ 2 ≡ χ 2 PL − χ 2 CPL > 6 (and when there is no problem in the CPL fit; see the criteria for acceptable fits below). In the following list, we summarize the criteria we use to decide whether a fit is acceptable:…”

Section: Figurementioning

confidence: 99%

“…In addition to the short and long categories using the burst durations, previous studies from GRBs detected by multiple instruments, including BATSE, Fermi, and Swift, have found that short bursts tend to be harder than long GRBs (e.g., Kouveliotou et al 1993;Qin et al 2000;Řípa et al 2009;Sakamoto et al 2011b;Qin et al 2013;von Kienlin et al 2014). Figure 8 shows an updated version of the hardness ratio (i.e., the fluence in 50-100 keV divided by fluence in 25-50 keV) versus T 90 to include all the new BAT-detected GRBs since the BAT2 catalog.…”

Section: Spectral Analyses 431 Time-averaged Spectramentioning

confidence: 99%

“…Several catalogs related to the BAT-detected GRBs have been published, including the first and second BAT GRB catalog from the Swift/BAT team (Sakamoto et al 2008;Sakamoto et al 2011b, which will hereafter be referred as the BAT1 and BAT2 catalog, respectively). Some catalogs with selected BAT GRBs for specific usages have also been presented, such as the catalog composed by Salvaterra et al (2012) (also known as the BAT6 catalog) that selects bright bursts detected by BAT with optimal conditions for ground follow-up observations, in order to construct a GRB sample with redshift completeness.…”

Section: Introductionmentioning

confidence: 99%

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The Third Swift Burst Alert Telescope Gamma-Ray Burst Catalog

Lien

Sakamoto

Barthelmy

et al. 2016

ApJ

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To date, the Burst Alert Telescope (BAT) onboard Swift has detected ∼1000 gamma-ray bursts (GRBs), of which ∼360 GRBs have redshift measurements, ranging from z=0.03 to z=9.38. We present the analyses of the BATdetected GRBs for the past ∼11 years up through GRB151027B. We report summaries of both the temporal and spectral analyses of the GRB characteristics using event data (i.e., data for each photon within approximately 250 s before and 950 s after the BAT trigger time), and discuss the instrumental sensitivity and selection effects of GRB detections. We also explore the GRB properties with redshift when possible. The result summaries and data products are available at http://swift.gsfc.nasa.gov/results/batgrbcat/index.html. In addition, we perform searches for GRB emissions before or after the event data using the BAT survey data. We estimate the false detection rate to be only one false detection in this sample. There are 15 ultra-long GRBs (∼2% of the BAT GRBs) in this search with confirmed emission beyond ∼1000 s of event data, and only two GRBs (GRB100316D and GRB101024A) with detections in the survey data prior to the starting of event data.

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Section: Figurementioning

confidence: 86%

Section: Status Of the In-orbit Calibrationsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%