J/PAZh/40/271 Catalog of short gamma-ray transients (Minaev+, 2014)
Catalog of short gamma-ray transients detected in the SPI/INTEGRAL experiment.
Minaev P.Yu., Pozanenko A.S., Molkov S.V., Grebenev S.A.
<Pis'ma Astron. Zh. 40, 271 (2014)>
=2014AstL...40..235M 2014AstL...40..235M
=2014PAZh...40..271M 2014PAZh...40..271M
ADC_Keywords: Gamma rays
Keywords: gamma-ray transients - gamma-ray bursts - soft gamma repeaters -
anomalous X-ray pulsars - spectral evolution - spectral lag -
cross-correlation analysis
Abstract:
We analyzed the data obtained by the SPI telescope onboard the
INTEGRAL observatory to search for short transient events with a
duration from 1 ms to a few tens of seconds. An algorithm for
identifying gamma-ray events against the background of a large number
of charged particle interactions with the detector has been developed.
The classification of events was made. Apart from the events
associated with cosmic gamma-ray bursts (GRBs) confirmed by other
space experiments and the activity of known soft gamma repeaters (for
example, SGR 1806-20), previously unreported GRBs have been found. GRB
candidates and short gamma-ray events probably associated with the
activity of known SGRs and AXPs have been selected. The spectral
evolution of 28 bright GRBs from the catalog has been studied
extensively. A new method for investigating the spectral evolution is
proposed. The energy dependence of the spectral lag for bursts with a
simple structure of their light curves and for individual pulses of
multipulse events is shown to be described by a logarithmic function,
lag∼Alog(E). It has been established that the parameter A depends
on the pulse duration, with the dependence being universal for all of
the investigated GRBs. No negative spectral lags have been detected
for bursts with a simple structure of their light curves.
Objects:
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RA (ICRS) DE Designation(s) (Table)
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18 08 39.32 -20 24 39.5 SGR 1806-20 = PSR J1808-2024 (table1)
15 50 54.11 -54 18 23.7 AXP 1E 1547.0-5408 = PSR J1550-5418 (table2)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 31 225 List of bursts from SGR 1806-20 detected in the
SPI/INTEGRAL experiment
table2.dat 31 23 List of bursts from AXP 1E 1547.0-5408 detected
in the SPI/INTEGRAL experiment
table3.dat 31 90 List of candidates for SGR bursts detected in
the SPI/INTEGRAL experiment
table7.dat 36 160 List of the GRB candidates detected in the
SPI/INTEGRAL experiment
table4.dat 75 48 Observed properties of the GRBs detected in
the SPI/INTEGRAL experiment
table8.dat 71 43 Spectral lag of the GRBs detected in the
SPI/INTEGRAL experiment determined by the
new method
table9.dat 97 48 Spectral lag of the GRBs detected in the
SPI/INTEGRAL experiment between the energy
channels (25, 50), (50, 100), (100, 300),
and (300, 1000) keV
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See also:
J/A+A/528/A122 : SwiftFT catalog (Puccetti+, 2011)
J/ApJS/195/2 : The second Swift BAT GRB catalog (BAT2) (Sakamoto+, 2011)
J/ApJS/208/21 : The BATSE 5B GRB spectral catalog (Goldstein+, 2013)
J/ApJS/211/13 : The second Fermi/GBM GRB catalog (4yr) (von Kienlin+, 2014)
Byte-by-byte Description of file: table1.dat table2.dat table3.dat table7.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "date" Date Observation date
11 A1 --- Code [SAU] Code for the name of the candidate (1)
13- 23 A11 "h:m:s" Time The trigger time (UTC) onboard the INTEGRAL
observatory
25 A1 --- l_T90 Limit flag on T90
26- 31 F6.3 s T90 Time Duration time covering 90% of the counts
33- 36 F4.1 --- signi [4/44]? Significance (only in table7)
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Note (1): Codes as follows:
S = a candidate for a burst from SGR 1806-20
A = a candidate for a burst from AXP 1E 1547.0-5408
U = a candidate for a burst from an unknown source
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- GRB GRB name
9 I1 --- n_GRB ? Note on GRB (1)
11- 21 A11 "h:m:s" Time The trigger time (UTC)
23- 28 F6.2 s T90 Time Duration time covering 90% of the counts
30- 33 F4.2 s e_T90 rms uncertainty on T90
35- 37 A3 -- glow [XOR ] Afterglow observation
(X-ray, Optical, Radio)
39- 48 F10.6 deg RAdeg ? Right ascension (J2000)
49- 58 F10.6 deg DEdeg ? Declination (J2000)
60 A1 --- l_ePos Limit flag on ePos
61- 67 F7.3 arcmin ePos ?=- Localization accuracy of the burst
69- 70 I2 --- r_ePos [6/58]? Prigin of the localization (1)
72- 75 F4.1 deg Offset [2.8/53.5]? Off-axis angle between the burst
direction and the center of the SPI field of
view
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Note (1): Notes as follows:
2 = recorded outside the SPI and IBIS/ISGRI fields of view
3 = the GRB also recorded by other space observatories, first detected in
the SPI and/or IBIS/ISGRI data
4 = a new, previously unknown GRB detected in the SPI data
5 = recorded at the edge of the SPI field of view
6 = the burst source was localized by triangulation using the data from
Hurley (2011ApJS..197...34H 2011ApJS..197...34H, Cat. J/ApJS/197/34), the corner coordinates
of the error region (RA, Dec): (290.2, 32.1), (287.9, 37.8),
(290.3, 32.0), (288.0, 37.8)
7 = The burst source was localized by triangulation using the data from
Hurley (2011ApJS..197...34H 2011ApJS..197...34H, Cat. J/ApJS/197/34), the corner coordinates
of the error region (RA, Dec): (302.16, 6.95), (302.10, 7.78),
(302.31, 7.31), (301.95, 7.43)
8 = burst source was localized in GCN 1907
9 = burst source was localized in GCN 2490
10 = burst source was localized in GCN 2547
11 = burst source was localized in (Vianello et al., 2009A&A...495.1005V 2009A&A...495.1005V)
12 = burst source was localized in (de Luca et al., 2005A&A...440...85D 2005A&A...440...85D)
13 = burst source was localized in GCN 2861
14 = burst source was localized in GCN 3322
15 = burst source was localized in GCN 3359
16 = burst source was localized in GCN 3434
17 = burst source was localized in GCN 3493
18 = burst source was localized in GCN 5496
19 = burst source was localized in GCN 5754
20 = burst source was localized in GCN 5849
21 = burst source was localized in GCN 6190
22 = burst source was localized in GCN 6612
23 = burst source was localized in GCN 6826
24 = burst source was localized in GCN 7594
25 = burst source was localized in GCN 7872
26 = burst source was localized in GCN 8786
27 = burst source was localized in GCN 9572
28 = burst source was localized in GCN 9871
29 = burst source was localized in Hurley et al. (2011ApJS..197...34H 2011ApJS..197...34H,
Cat. J/ApJS/197/34)
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- GRB GRB name
9- 17 A9 --- Tel Telescope
18 A1 --- l_Nc Limit flag on Nc
19- 20 I2 --- Nc ? Number of components in the GRB light curve
used (1)
21 A1 --- n_Nc [fsv] Note on Nc (2)
23- 27 A5 --- Comp Component (G1)
28- 29 A2 --- n_Comp [gp* ] Note on Comp (2)
31- 36 F6.3 --- A1 Slope in the fit to the spectral lag-energy
relation (3)
38- 42 F5.3 --- e_A1 rms uncertainty on A1
44- 48 F5.2 --- A2 ?=- Second slope in the fit to the spectral
lag-energy relation (3)
50- 53 F4.2 --- e_A2 ? rms uncertainty on A2
55- 59 F5.1 keV Ebr ?=- Energy break (4)
61- 63 F3.1 keV e_Ebr ?=- rms uncertainty on Ebr
65- 68 F4.2 --- chi2 [0/9] χ2 value of the fit
69 A1 --- --- [/]
70- 71 I2 --- dof [6/20] Number of degrees of freedom
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Note (1): Number of components in the GRB light curve used that was determined
by identifying and fitting the pulses or was estimated visually for bursts
with strongly overlapping pulses
Note (2): Notes as follows:
* = The study was carried out for part of the event due to the absence of
telemetry
f = The number of identified and fitted pulses
v = The minimum number of pulses estimated visually
s = The pulses were identified using the the SPI-ACS data
g = Several pulses are analyzed simultaneously
p = One pulse is analyzed
Note (3): slopes in the fit to the spectral lag-energy relation in the simple
logarithmic model lag=Alog(E)+B (Eq.(6)).
Note (4): Energy at which a break in the spectral lag-energy relation is
observed (see Eq. (7)).
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- GRB GRB name
9- 19 A11 --- Tel Telescope: IBIS/ISGRI, SPI or ISGRI
20- 28 A9 --- Comp Component used for analysis (G1)
29 A1 --- n_Comp [*] *: There are no data for part of the
event due to telemetry failure
31- 36 F6.3 s Lag2-1 ?=- Spectral lag between energy channels
(50-100) and (25-50) keV
38- 42 F5.3 s e_Lag2-1 ? rms uncertainty on Lag2-1
44- 49 F6.3 s Lag3-1 ?=- Spectral lag between energy channels
(100-300) and (25-50) keV
51- 55 F5.3 s e_Lag3-1 ? rms uncertainty on Lag3-1
56- 60 F5.2 s Lag4-1 ?=- Spectral lag between energy channels
(300-1000) and (25-50) keV
62- 66 F5.3 s e_Lag4-1 ? rms uncertainty on Lag4-1
68- 71 F4.2 s Lag3-2 ?=- Spectral lag between energy channels
(100-300) and (50-100) keV
73- 76 F4.2 s e_Lag3-2 ? rms uncertainty on Lag3-2
78- 81 F4.2 s Lag4-2 ?=- Spectral lag between energy channels
(300-1000) and (50-100) keV
83- 86 F4.2 s e_Lag4-2 ? rms uncertainty on Lag4-2
88- 92 F5.2 s Lag4-3 ?=- Spectral lag between energy channels
(300-1000) and (100-300) keV
94- 97 F4.2 s e_Lag4-3 ? rms uncertainty on Lag4-3
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Global notes:
Note (G1): component in the light curve that was used in our analysis (full
means that the GRB as a whole was investigated, 1st, 2nd, etc. mean that
the first, second, etc. components were investigated).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 21-Jul-2014