This page displays the outcomes of the Fermi-LAT follow-up analysis pipeline that was used to search for electromagnetic counterparts of gravitational waves (GW). For a detailed explanation of the analysis techniques, please refer to
2017ApJ...841L..16V . Furthermore, the Fermi-LAT Collaboration has published additional papers on GW events such as
GW150914 ,
LVT151012 and GW151226 ,
GW170104 , and
GW170817
If you have any questions, write to Niccolò Di Lalla .
Click on the corresponding button to access the table associated with a particolar observing cycle:
O3
O4
Stop your mouse cursor over the table headings to view a short explanation of the columns in the table or check the legend here.
* Information taken from
GraceDB (LIGO-Virgo-KAGRA Collaboration).
Trigger Name*
Date*
Time (UTC)*
GraceDB*
FAR [Hz]*
Highest Probability*
Has Remnant?*
FTI TS max
ATI TS max
Flux UB [erg/cm2 /s]
Analysis Report
S200316bj
2020-03-16
21:57:56
7.1e-11
MassGap: 99.6%
0.0%
13.6
13.6
9.5e-10
S200311bg
2020-03-11
11:58:53
8.9e-26
BBH: 100.0%
0.0%
0.0
0.0
1.4e-09
S200302c
2020-03-02
01:58:11
9.3e-09
BBH: 89.0%
0.0%
21.7
21.1
4.3e-10
S200225q
2020-02-25
06:04:21
9.2e-09
BBH: 95.8%
0.0%
6.8
2.5
7.0e-10
S200224ca
2020-02-24
22:22:34
1.6e-11
BBH: 100.0%
0.0%
5.6
5.1
5.2e-10
S200219ac
2020-02-19
09:44:15
1.3e-08
BBH: 96.4%
0.0%
11.0
11.5
5.2e-10
S200213t
2020-02-13
04:10:40
1.8e-08
BNS: 62.9%
100.0%
16.3
17.6
3.5e-10
S200208q
2020-02-08
13:01:17
2.5e-09
BBH: 99.3%
0.0%
4.3
6.3
4.4e-10
S200129m
2020-01-29
06:54:58
6.7e-32
BBH: 100.0%
0.0%
7.4
5.7
6.8e-10
S200128d
2020-01-28
02:20:11
1.6e-08
BBH: 96.9%
0.0%
16.6
12.7
1.2e-09
S200115j
2020-01-15
04:23:09
2.1e-11
MassGap: 100.0%
100.0%
19.6
19.7
2.0e-09
S200114f
2020-01-14
02:08:18
1.2e-09
Burst
N.A.
13.4
13.5
9.9e-10
S200112r
2020-01-12
15:58:38
1.3e-11
BBH: 100.0%
0.0%
67.8
57.1
1.6e-09
S200105ae
2020-01-05
16:24:26
7.7e-07
Terrestrial: 97.3%
0.0%
47.2
28.1
6.9e-10
S191222n
2019-12-22
03:35:37
6.5e-12
BBH: 100.0%
0.0%
11.7
12.7
1.6e-09
S191216ap
2019-12-16
21:33:38
1.1e-23
BBH: 99.1%
0.0%
11.6
13.6
1.7e-09
S191215w
2019-12-15
22:30:52
1.0e-09
BBH: 99.7%
0.0%
10.0
14.5
1.1e-09
S191213g
2019-12-13
04:34:08
3.5e-08
BNS: 76.8%
100.0%
19.2
20.8
1.3e-09
S191205ah
2019-12-05
21:52:08
1.2e-08
NSBH: 93.2%
0.0%
17.6
16.1
8.5e-10
S191204r
2019-12-04
17:15:26
3.1e-25
BBH: 100.0%
0.0%
16.9
17.4
3.8e-10
S191129u
2019-11-29
13:40:29
2.7e-35
BBH: 100.0%
0.0%
16.2
9.4
7.8e-10
S191105e
2019-11-05
14:35:21
2.3e-08
BBH: 95.3%
0.0%
32.9
25.2
3.5e-10
S190930t
2019-09-30
14:34:07
1.5e-08
NSBH: 74.3%
0.0%
24.7
18.5
5.4e-10
S190930s
2019-09-30
13:35:41
3.0e-09
MassGap: 95.1%
0.0%
17.4
15.3
8.8e-10
S190924h
2019-09-24
02:18:46
8.9e-19
MassGap: 100.0%
0.0%
16.9
7.3
1.5e-09
S190923y
2019-09-23
12:55:59
4.8e-08
NSBH: 67.8%
0.0%
20.9
19.9
6.3e-10
S190915ak
2019-09-15
23:57:02
9.7e-10
BBH: 99.5%
0.0%
14.2
14.7
4.1e-10
S190910h
2019-09-10
08:29:58
3.6e-08
BNS: 61.2%
100.0%
38.2
39.4
8.1e-10
S190910d
2019-09-10
01:26:19
3.7e-09
NSBH: 97.6%
0.0%
34.1
27.8
7.6e-10
S190901ap
2019-09-01
23:31:01
7.0e-09
BNS: 86.1%
100.0%
25.8
21.3
6.1e-10
S190828l
2019-08-28
06:55:09
4.6e-11
BBH: 100.0%
0.0%
15.8
15.9
4.9e-10
S190828j
2019-08-28
06:34:05
8.5e-22
BBH: 100.0%
0.0%
19.4
19.9
5.2e-10
S190814bv
2019-08-14
21:10:38
2.0e-33
NSBH: 99.8%
0.0%
0.0
0.0
N.A.
S190728q
2019-07-28
06:45:10
2.5e-23
BBH: 95.4%
0.0%
5.9
14.9
1.4e-09
S190727h
2019-07-27
06:03:33
1.4e-10
BBH: 92.2%
0.0%
15.2
9.4
3.2e-10
S190720a
2019-07-20
00:08:36
3.8e-09
BBH: 98.9%
0.0%
10.5
28.6
4.1e-10
S190718y
2019-07-18
14:35:12
3.6e-08
Terrestrial: 97.9%
100.0%
17.4
15.6
6.3e-10
S190707q
2019-07-07
09:33:26
5.3e-12
BBH: 100.0%
0.0%
17.0
15.8
1.4e-09
S190706ai
2019-07-06
22:26:41
1.9e-09
BBH: 99.0%
0.0%
11.6
11.6
4.2e-10
S190701ah
2019-07-01
20:33:06
1.9e-08
BBH: 93.4%
0.0%
0.8
5.4
4.4e-10
S190630ag
2019-06-30
18:52:05
1.4e-13
BBH: 94.3%
0.0%
22.0
21.2
7.4e-10
S190602aq
2019-06-02
17:59:27
1.9e-09
BBH: 99.0%
0.0%
14.2
14.1
9.5e-10
S190521r
2019-05-21
07:43:59
3.2e-10
BBH: 99.9%
0.0%
16.7
14.3
1.3e-09
S190521g
2019-05-21
03:02:29
3.8e-09
BBH: 96.6%
0.0%
12.5
13.1
4.7e-10
S190519bj
2019-05-19
15:35:44
5.7e-09
BBH: 95.6%
0.0%
14.5
13.9
8.0e-10
S190517h
2019-05-17
05:51:01
2.4e-09
BBH: 98.3%
0.0%
12.5
16.1
7.6e-10
S190513bm
2019-05-13
20:54:28
3.7e-13
BBH: 94.3%
0.0%
94.4
13.6
1.6e-09
S190512at
2019-05-12
18:07:14
1.9e-09
BBH: 99.0%
0.0%
11.2
12.6
9.7e-10
S190510g
2019-05-10
02:59:39
8.8e-09
Terrestrial: 58.0%
100.0%
10.6
12.3
3.7e-10
S190503bf
2019-05-03
18:54:04
1.6e-09
BBH: 96.3%
0.0%
12.2
12.1
3.1e-10
S190426c
2019-04-26
15:21:55
1.9e-08
BNS: 49.3%
100.0%
21.2
14.9
4.0e-10
S190425z
2019-04-25
08:18:05
4.5e-13
BNS: 99.9%
100.0%
94.6
40.5
4.7e-10
S190421ar
2019-04-21
21:38:56
1.5e-08
BBH: 96.7%
0.0%
15.1
16.4
1.5e-09
S190412m
2019-04-12
05:30:44
1.7e-27
BBH: 100.0%
12.0%
9.5
12.8
8.3e-10
S190408an
2019-04-08
18:18:02
2.8e-18
BBH: 100.0%
12.0%
10.3
14.4
4.4e-10
A total of 55 events are available.
Table Legend
Trigger Name: LIGO-Virgo-KAGRA event name
Date: LIGO-Virgo-KAGRA event date
Time: LIGO-Virgo-KAGRA event time
GraceDB: LIGO-Virgo-KAGRA link to the GraceDB webpage
FAR [Hz]: LIGO-Virgo-KAGRA False Alarm Rate. Used to describe the significance of the event
Highest Probability: LIGO-Virgo-KAGRA most probable source association. Can be BNS (binary neutron star), BBH (binary black hole), NSBH (neutron star black hole), MassGap (with one component between 3 and 5 solar masses), Terrestrial (instrumental or environmental origin)
Has Remnant?: LIGO-Virgo-KAGRA probability that the system ejected a non-zero amount of neutron star matter
FTI TS max: Fermi-LAT maximum value of the Test Statistic for the Fixed Time Interval analysis
ATI TS max: Fermi-LAT maximum value of the Test Statistic for the Adaptive Time Interval analysis
Flux UB [erg/cm2 /s]: Fermi-LAT Bayesian flux Upper Bound at 95% of credibility interval for the fixed time interval analysis
Analysis Report: Fermi-LAT link to the analysis report webpage