J/ApJS/259/46 Insight-HXMT GRB catalog, 2017-2021 obs. (Song+, 2022)
The first Insight-HXMT Gamma-Ray Burst catalog: the first four years.
Song X.-Y., Xiong S.-L., Zhang S.-N., Li C.-K., Li X.-B., Huang Y.,
Guidorzi C., Frontera F., Liu C.-Z., Li X.-F., Li G., Liao J.-Y., Cai C.,
Luo Q., Xiao S., Yi Q.-B., Zheng Y.-G., Zhou D.-K., Liu J.-C., Xue W.-C.,
Zhang Y.-Q., Zheng C., Chang Z., Li Z.-W., Lu X.-F., Zhang A.-M.,
Zhang Y.-F., Jin Y.-J., Li T.-P., Lu F.-J., Song L.-M., Wu M., Xu Y.-P.,
Ma X., Ge M.-Y., Jia S.-M., Li B., Nie J.-Y., Wang L.-J., Zhang J.,
Zheng S.-J., Yang X.-J., Yang R.-J.
<Astrophys. J. Suppl. Ser., 259, 46 (2022)>
=2022ApJS..259...46S 2022ApJS..259...46S
ADC_Keywords: GRB; X-ray sources
Keywords: Gamma-ray bursts
Abstract:
The Hard X-ray Modulation Telescope (Insight-HXMT) is China's first
X-ray astronomy satellite. It was launched on 2017 June 15. The
anticoincidence CsI detectors of the High Energy X-ray telescope (HE)
on board Insight-HXMT could serve as an all-sky gamma-ray monitor in
about 0.2-3MeV. In its first four years of operation, Insight-HXMT has
detected 322 gamma-ray bursts (GRBs) by the offline search pipeline,
including blind search and targeted search. For the GOLDEN sample of
Insight-HXMT GRBs, joint analyses were performed with other GRB
missions, including the Fermi Gamma-ray Burst Monitor (Fermi/GBM), the
Swift Burst Alert Telescope (Swift/BAT), and the Gravitational wave
high-energy Electromagnetic Counterpart All-sky Monitor (GECAM). The
analyses showed that Insight-HXMT can provide a better constraint on
the GRB spectrum at a higher-energy band. The properties of
Insight-HXMT GRBs are reported in detail, including their trigger
time, duration, spectral parameters, peak fluxes of different
timescales, and fluence. This catalog is an official product of the
Insight-HXMT GRB team.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 88 322 GRB triggers: locations and trigger characteristics
table4.dat 113 202 Durations (10-2000keV) from joint analyses with
"GOLDEN" GRB samples
table5.dat 67 94 Durations (40-800keV for NG mode, 200-3000keV for
LG mode) of "SILVER" and "BRONZE" GRB samples
table6.dat 67 202 Fluence and peak flux (10-2000keV) from joint
analyses with "GOLDEN" GRB samples
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See also:
J/ApJS/120/399 : ULYSSES supplement to GRB 3B catalog (Hurley+, 1999)
J/ApJ/893/46 : The 4th Fermi-GBM GRB catalog: 10 years (von Kienlin+, 2020)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Trigger Trigger ID (1)
14- 16 A3 --- --- [GRB]
18- 24 A7 --- GRB GRB Name if any (YYMMDDA)
26- 35 A10 "Y/M/D" Obs.date UTC Date Time
36 A1 --- --- [T] ISO3601 format
37- 38 I2 h Obs.h UTC Trigger Time, hour
39 A1 --- --- [:]
40- 41 I2 min Obs.m UTC Trigger Time, minute
42 A1 --- --- [:]
43- 47 F5.2 s Obs.s UTC Trigger Time, second
49- 56 A8 --- Method Search Method (2)
58- 59 A2 --- Gain Gain Mode (3)
61- 65 F5.1 deg RAdeg ? Right Ascension (J2000)
67- 71 F5.1 deg DEdeg [-77/85.3]? Declination (J2000)
73- 76 F4.1 deg PosErr [0.1/68.1]? Positional uncertainty
78- 86 A9 --- Loc Location source (4)
88- 88 A1 --- Sample Kind(s) of GRB samples (5)
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Note (1): The trigger ID starts with a "HEB" label which means
"HE-detected Burst".
Note (2): As clarified in Section 3, method as follows:
BLIND = blind search
TARGETED = targeted search
Note (3): The measured energy range (deposited energy) of the CsI detector is
about 40-800keV in the normal-gain ("NG") mode and about 200keV-3MeV
in low-gain ("LG") mode. See Section 1.
Note (4): The uncertainties of the locations from Swift/BAT are 90%
containment, including systematic uncertainty, while those from
Fermi/GBM and other detections are 1σ containment, statistical
only. If the location source is from interplanetary network (IPN)
triangulation, the error is determined to be the maximum dimension of
error box area.
Instrument detections are defined as:
Fermi/LAT: Large Area Telescope,
IBIS: Imager on Board Integral Satellite in INTEGRAL
Note (5): As shown in Table 2, sample as follows:
G = GOLDEN
S = SILVER
B = BRONZE
I = IRON
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- Trigger Trigger ID
14- 53 A40 --- Detect Detectors Used
55- 61 F7.3 s T50 [0/200] T50
63- 67 F5.3 s e_T50 [0.014/7] Uncertainty in T50
69- 75 F7.3 s T50-st [-36.8/31.8] T50 start
77- 83 F7.3 s T90 [0.05/247] T90
85- 90 F6.3 s e_T90 [0.04/15.2] Uncertainty in T90
92- 98 F7.3 s T90-st [-58.5/8.6] T90 start
100-106 F7.3 s T90-H [0.03/137] T90 only with HXMT/CsI counts
108-113 F6.3 s e_T90-H [0.007/37] Uncertainty in T90-H
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Trigger Trigger ID
14- 21 A8 --- Detect Detectors Used
23- 29 F7.3 s T50 [0/139] T50
31- 36 F6.3 s e_T50 [0.007/34] Uncertainty in T50
38- 44 F7.3 s T50-st [-22.4/98] T50 start
46- 52 F7.3 s T90 [0.06/159] T90
54- 59 F6.3 s e_T90 [0.007/28.2] Uncertainty in T90
61- 67 F7.3 s T90-st [-42.4/82] T90 start
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Trigger Trigger ID
14- 21 E8.2 10-3J/m Fluence [1.3e-8/0.00015] Fluence, in erg/cm2
23- 30 E8.2 10-3J/m e_Fluence [7.5e-9/2e-6] Uncertainty in Fluence
32- 37 F6.2 ph.cm-2.s-1 PF64 [0.98/176] Peak Flux, 64ms, in ph/cm2/s
39- 43 F5.2 ph.cm-2.s-1 e_PF64 [0.16/14.2] Uncertainty in PF64
45- 50 F6.2 ph.cm-2.s-1 PF256 [0.7/156] Peak Flux, 256ms, in ph/cm2/s
52- 55 F4.2 ph.cm-2.s-1 e_PF256 [0.08/7.03] Uncertainty in PF256
57- 62 F6.2 ph.cm-2.s-1 PF1024 [0.09/116] Peak Flux, 1024ms,
in ph/cm2/s
64- 67 F4.2 ph.cm-2.s-1 e_PF1024 [0.03/3] Uncertainty in PF1024
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 28-Jun-2022