Swift-XRT Survey of Fermi Unassociated Sources

These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.
Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

4FGL J1618.0-5119

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1618.0-5119 Swift-XRT detections in the field for 4FGL J1618.0-5119

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 17 35.06 -51 05 51.38 3.65 (1.7 ± 0.5) x 10-2 198 14.140 3.243
2 16 17 36.19 -51 02 23.07 4.14 (9 ± 3) x 10-3 36 5.311 3.228

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 17 57.77 -51 03 35.29 3.72 (9 ± 4) x 10-3 99 6.628 2.451
2 16 17 50.75 -51 04 46.82 3.63 (1.1 ± 0.5) x 10-2 180 13.600 2.317
3 16 18 40.38 -51 12 18.91 6.41 (4 ± 2) x 10-3 10 2.314 2.215
4 16 17 34.34 -51 03 31.14 3.80 (6 ± 3) x 10-3 69 4.714 1.870
5 16 17 44.22 -51 05 35.65 3.65 (7 ± 4) x 10-3 186 13.780 1.804
6 16 17 25.97 -51 04 28.78 3.77 (5 ± 3) x 10-3 66 6.274 1.718
7 16 17 23.47 -51 05 37.89 3.77 (5 ± 3) x 10-3 74 7.025 1.707
8 16 17 33.93 -51 05 12.47 3.65 (9 ± 5) x 10-3 122 5.461 1.704
9 16 17 44.69 -51 03 25.86 3.74 (5 ± 3) x 10-3 81 6.340 1.651
10 16 17 35.12 -51 03 18.91 3.80 (4 ± 2) x 10-3 54 2.889 1.623
11 16 17 40.10 -51 04 41.96 3.65 (6 ± 4) x 10-3 99 7.224 1.545
12 16 18 02.77 -51 05 07.44 4.10 (3 ± 2) x 10-3 17 2.556 1.511
13 16 17 32.05 -51 06 00.36 3.67 (6 ± 4) x 10-3 172 9.196 1.485
14 16 17 35.09 -51 04 58.77 3.66 (6 ± 4) x 10-3 111 8.032 1.477
15 16 17 23.69 -51 03 36.01 3.97 (4 ± 3) x 10-3 32 3.072 1.401
16 16 17 35.05 -51 05 45.02 3.65 (6 ± 4) x 10-3 189 10.810 1.391
17 16 17 23.05 -51 04 25.41 3.83 (3 ± 2) x 10-3 57 2.730 1.295
18 16 17 47.51 -51 02 55.28 3.85 (3 ± 3) x 10-3 56 5.548 1.280
19 16 18 00.18 -51 03 19.79 3.81 (3 ± 2) x 10-3 61 3.392 1.276
20 16 17 35.82 -51 03 49.80 3.75 (4 ± 3) x 10-3 75 6.722 1.231
21 16 17 44.71 -51 03 19.71 3.76 (4 ± 4) x 10-3 76 2.712 1.197
22 16 17 20.03 -51 04 27.53 3.92 (2 ± 2) x 10-3 42 2.542 1.157
23 16 17 44.62 -51 03 49.13 3.69 (4 ± 3) x 10-3 104 9.301 1.151
24 16 17 32.38 -51 05 18.75 3.65 (6 ± 5) x 10-3 139 8.519 1.138
25 16 17 59.68 -51 04 00.34 3.72 (3 ± 3) x 10-3 79 5.198 1.123
26 16 17 53.82 -51 04 18.05 3.65 (5 ± 5) x 10-3 172 9.514 1.060
27 16 17 54.11 -51 04 36.51 3.65 (5 ± 5) x 10-3 165 11.730 0.992
28 16 17 23.92 -51 04 27.44 3.81 (2 ± 2) x 10-3 55 4.116 0.986
29 16 17 57.13 -51 03 24.01 3.74 (2 ± 2) x 10-3 86 2.343 0.971
30 16 17 41.53 -51 02 29.38 3.97 (2 ± 2) x 10-3 20 2.319 0.895
31 16 17 23.46 -51 05 37.92 3.77 (3 ± 4) x 10-3 74 5.378 0.860
32 16 17 50.27 -51 04 44.93 3.63 (3 ± 4) x 10-3 174 10.380 0.838
33 16 17 56.54 -51 04 04.20 3.67 (4 ± 5) x 10-3 110 7.885 0.834
34 16 17 22.53 -51 05 37.39 3.79 (2 ± 2) x 10-3 68 4.788 0.829
35 16 17 40.06 -51 05 14.89 3.63 (4 ± 5) x 10-3 128 8.747 0.719
36 16 17 59.73 -51 03 20.69 3.78 (1 ± 2) x 10-3 63 2.743 0.679
37 16 17 29.56 -51 06 12.89 3.71 (2 ± 3) x 10-3 146 4.892 0.648
38 16 17 23.92 -51 04 27.44 3.81 (1 ± 2) x 10-3 55 4.465 0.494
39 16 17 59.73 -51 03 20.69 3.78 (1 ± 3) x 10-3 63 5.692 0.462
40 16 17 55.58 -51 03 44.34 3.69 (1 ± 3) x 10-3 124 2.733 0.454
41 16 17 29.06 -51 03 50.30 3.80 (1 ± 3) x 10-3 60 5.284 0.406
42 16 17 27.11 -51 04 34.83 3.76 (1 ± 4) x 10-3 71 6.735 0.386
43 16 17 43.72 -51 05 35.03 3.65 (1 ± 5) x 10-3 181 10.570 0.255
44 16 17 54.46 -51 04 02.49 3.66 (5 ± 31) x 10-4 137 3.800 0.157
45 16 17 35.47 -51 03 48.37 3.75 (6 ± 310) x 10-5 73 5.548 0.020
46 16 17 44.23 -51 05 36.23 3.65 N/A 198 2.319 N/A
47 16 17 36.48 -51 03 17.82 3.79 N/A 58 4.774 N/A
48 16 17 48.13 -51 04 33.08 3.64 N/A 155 4.394 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1618.0-5119 Swift-XRT image with known radio, optical and UV sources for 4FGL J1618.0-5119

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMMs J161754.2-511508 16 17 54.26 -51 15 08.28 4.84 XMM-NEWTON
2 4XMMs J161806.3-511438 16 18 06.36 -51 14 38.76 5.09 XMM-NEWTON
4XMM J161806.4-511438 16 18 06.43 -51 14 38.76 5.09 XMM-NEWTON
3 4XMMs J161733.1-511610 16 17 33.14 -51 16 10.20 6.00 XMM-NEWTON
4XMMs J161732.7-511548 16 17 32.74 -51 15 48.24 6.28 XMM-NEWTON
4XMM J161732.7-511547 16 17 32.76 -51 15 47.52 6.28 XMM-NEWTON
4 4XMM J161756.1-511206 16 17 56.06 -51 12 08.28 7.69 XMM-NEWTON
4XMMs J161756.2-511206 16 17 56.21 -51 12 06.48 7.72 XMM-NEWTON
4XMM J161756.1-511206 16 17 56.23 -51 12 05.76 7.73 XMM-NEWTON
4XMM J161756.1-511206 16 17 56.35 -51 12 02.88 7.77 XMM-NEWTON
5 4XMMs J161727.2-511343 16 17 27.24 -51 13 43.32 8.32 XMM-NEWTON
4XMM J161734.4-511228 16 17 34.73 -51 12 29.52 8.57 XMM-NEWTON
6 X161734.39-511230.0 16 17 34.39 -51 12 29.88 8.59 CHANDRA
4XMM J161734.4-511228 16 17 34.44 -51 12 29.16 8.60 XMM-NEWTON
4XMMs J161734.5-511228 16 17 34.51 -51 12 28.80 8.60 XMM-NEWTON
2CXO J161734.7-511226 16 17 34.70 -51 12 26.28 8.61 CHANDRA
4XMM J161734.4-511228 16 17 34.27 -51 12 27.00 8.64 XMM-NEWTON
7 4XMMs J161810.5-511050 16 18 10.56 -51 10 50.52 8.93 XMM-NEWTON
4XMM J161810.7-511049 16 18 10.75 -51 10 49.44 8.96 XMM-NEWTON
8 4XMMs J161826.4-511120 16 18 26.45 -51 11 20.04 9.09 XMM-NEWTON
4XMM J161826.4-511119 16 18 26.40 -51 11 19.68 9.09 XMM-NEWTON
9 X161839.66-511223.9 16 18 39.67 -51 12 23.76 9.20 CHANDRA
X161841.17-511231.9 16 18 41.16 -51 12 32.04 9.24 CHANDRA
4XMM J161840.6-511220 16 18 40.70 -51 12 22.68 9.31 XMM-NEWTON
4XMMs J161840.7-511221 16 18 40.70 -51 12 21.60 9.33 XMM-NEWTON
4XMM J161840.6-511220 16 18 40.68 -51 12 20.52 9.34 XMM-NEWTON
1RXH J161840.9-511221 16 18 40.87 -51 12 21.60 9.34 ROSAT
4XMM J161840.6-511220 16 18 40.63 -51 12 19.44 9.35 XMM-NEWTON
10 4XMMs J161729.1-511159 16 17 29.11 -51 11 59.28 9.48 XMM-NEWTON
X161841.03-511211.5 16 18 41.04 -51 12 11.52 9.49 CHANDRA
1RXH J161818.8-511025 16 18 18.82 -51 10 24.96 9.59 ROSAT
4XMM J161818.6-511022 16 18 18.53 -51 10 23.88 9.59 XMM-NEWTON
11 2CXO J161818.8-511024 16 18 18.82 -51 10 24.24 9.60 CHANDRA
4XMM J161818.6-511022 16 18 18.70 -51 10 22.80 9.62 XMM-NEWTON
4XMMs J161818.6-511022 16 18 18.65 -51 10 22.44 9.62 XMM-NEWTON
CXOGSG J161818.7-511022 16 18 18.74 -51 10 22.44 9.63 CHANDRA
X161818.72-511022.1 16 18 18.72 -51 10 22.08 9.63 CHANDRA
4XMM J161818.6-511022 16 18 18.60 -51 10 20.28 9.66 XMM-NEWTON
12 2RXP J161841.2-511152 16 18 41.16 -51 11 52.80 9.75 ROSAT
1WGA J1618.7-5111 16 18 42.19 -51 11 56.04 9.81 ROSAT
13 4XMMs J161707.9-511520 16 17 07.92 -51 15 20.52 9.82 XMM-NEWTON
4XMMs J161806.6-510939 16 18 06.67 -51 09 38.88 10.08 XMM-NEWTON
4XMM J161806.5-510938 16 18 06.58 -51 09 38.88 10.08 XMM-NEWTON
4XMM J161741.9-511008 16 17 41.90 -51 10 08.76 10.18 XMM-NEWTON
4XMMs J161741.8-511008 16 17 41.83 -51 10 08.40 10.20 XMM-NEWTON
14 X161742.09-511007.3 16 17 42.10 -51 10 07.32 10.20 CHANDRA
2CXO J161741.9-511007 16 17 41.95 -51 10 07.68 10.20 CHANDRA
CXOGSG J161741.9-511007 16 17 42.00 -51 10 06.24 10.22 CHANDRA
X161741.90-511006.3 16 17 41.90 -51 10 06.24 10.23 CHANDRA
15 4XMMs J161841.3-511108 16 18 41.35 -51 11 08.16 10.38 XMM-NEWTON
16 CXOGSG J161807.2-510917 16 18 07.25 -51 09 17.28 10.45 CHANDRA
17 4XMMs J161720.9-511126 16 17 20.95 -51 11 26.16 10.69 XMM-NEWTON
18 CXOGSG J161812.1-510850 16 18 12.14 -51 08 50.28 10.96 CHANDRA
2CXO J161812.0-510849 16 18 12.02 -51 08 49.56 10.97 CHANDRA
19 2CXO J161805.6-510841 16 18 05.66 -51 08 42.00 11.03 CHANDRA
4XMMs J161813.7-510847 16 18 13.70 -51 08 47.76 11.03 XMM-NEWTON
20 4XMMs J161847.4-511048 16 18 47.42 -51 10 48.72 11.20 XMM-NEWTON
4XMM J161824.1-510852 16 18 24.12 -51 08 52.44 11.29 XMM-NEWTON
4XMMs J161824.2-510851 16 18 24.22 -51 08 51.72 11.31 XMM-NEWTON
4XMM J161824.1-510852 16 18 24.34 -51 08 52.08 11.31 XMM-NEWTON
21 X161823.90-510850.7 16 18 23.90 -51 08 50.64 11.31 CHANDRA
2CXO J161824.0-510850 16 18 24.10 -51 08 50.28 11.33 CHANDRA
CXOGSG J161824.1-510849 16 18 24.14 -51 08 49.92 11.34 CHANDRA
X161824.18-510849.3 16 18 24.19 -51 08 49.20 11.35 CHANDRA
22 CXOGSG J161739.8-510850 16 17 39.84 -51 08 51.00 11.52 CHANDRA
23 4XMM J161702.3-511313 16 17 02.69 -51 13 10.92 11.62 XMM-NEWTON
4XMMs J161702.2-511314 16 17 02.26 -51 13 14.16 11.65 XMM-NEWTON
4XMM J161702.3-511313 16 17 02.18 -51 13 14.52 11.65 XMM-NEWTON
24 CXOGSG J161733.9-510847 16 17 33.98 -51 08 47.40 11.90 CHANDRA
25 2CXO J161806.3-510746 16 18 06.34 -51 07 46.56 11.95 CHANDRA
4XMMs J161806.3-510745 16 18 06.31 -51 07 45.12 11.98 XMM-NEWTON
26 2CXO J161727.9-510821 16 17 27.94 -51 08 21.48 12.70 CHANDRA
X161727.84-510821.2 16 17 27.84 -51 08 21.12 12.71 CHANDRA
CXOGSG J161727.8-510820 16 17 27.89 -51 08 20.40 12.72 CHANDRA
2CXO J161725.4-510812 16 17 25.46 -51 08 12.12 13.01 CHANDRA
27 2CXO J161716.3-510856 16 17 16.32 -51 08 56.40 13.12 CHANDRA
CXOGSG J161716.2-510854 16 17 16.27 -51 08 54.96 13.15 CHANDRA
28 2CXO J161707.6-510942 16 17 07.68 -51 09 42.12 13.36 CHANDRA
29 4XMM J161656.0-511002 16 16 56.04 -51 10 02.28 14.39 XMM-NEWTON
4XMMs J161656.0-511001 16 16 56.09 -51 10 01.92 14.40 XMM-NEWTON
30 4XMMs J161648.8-511125 16 16 48.79 -51 11 25.44 14.41 XMM-NEWTON
4XMMs J161654.6-511006 16 16 54.65 -51 10 06.24 14.52 XMM-NEWTON
31 1RXS J161913.1-512929 16 19 13.10 -51 29 29.04 14.53 ROSAT
32 2CXO J161706.4-510754 16 17 06.48 -51 07 54.84 14.86 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J161757-511510 16 17 57.60 -51 15 11.16 4.66 MGPS2
2 NSV 20574 16 18 36.41 -51 17 17.16 5.61 GCVSNSVARS
3 PMN J1618-5115 16 18 41.30 -51 15 57.96 6.92 PMN
4 PPM 344782 16 17 22.97 -51 16 08.40 7.36 PPM
SAO 243546 16 17 22.90 -51 16 08.40 7.37 SAO
5 SAO 243585 16 18 30.70 -51 25 57.00 7.49 SAO
PPM 344812 16 18 30.58 -51 25 58.08 7.49 PPM
6 MGPS J161722-511525 16 17 22.80 -51 15 25.92 7.75 MGPS2
7 WDS J16187-5126 16 18 42.00 -51 25 59.88 8.62 WDS
8 PPM 772337 16 18 53.04 -51 24 28.08 8.99 PPM
9 SAO 243594 16 18 40.66 -51 12 20.88 9.33 SAO
CD-5010357 16 18 40.66 -51 12 20.52 9.34 ACRS
HD 146423 16 18 40.75 -51 12 20.88 9.34 HIC
PPM 344821 16 18 40.70 -51 12 20.52 9.34 PPM
HIP 79912 16 18 40.68 -51 12 20.16 9.34 HIPPARCOS
QORG J161840.8-511221 16 18 40.80 -51 12 20.88 9.34 QORGCAT
10 SAO 243576 16 18 18.96 -51 10 26.76 9.57 SAO
PPM 344805 16 18 18.60 -51 10 20.64 9.65 PPM
SAO 243574 16 18 18.55 -51 10 19.20 9.67 SAO
WDS J16183-5110 16 18 18.00 -51 10 00.12 9.96 WDS
11 MGPS J161710-512623 16 17 10.99 -51 26 24.00 10.64 MGPS2
12 MGPS J161659-511441 16 16 59.69 -51 14 40.92 11.25 MGPS2
13 PPM 344844 16 19 11.06 -51 14 02.04 11.92 PPM
SAO 243617 16 19 11.11 -51 14 01.32 11.93 SAO

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