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.

3FGL J1754.0-2538

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1754.0-2538 Swift-XRT detections in the field for 3FGL J1754.0-2538

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 53 39.86 -25 45 11.64 3.54 (3.11 ± 0.07) x 10-1 2319 52.850 42.440
2 17 53 31.43 -25 34 28.32 5.14 (2.6 ± 0.8) x 10-3 26 3.607 3.481

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 17 53 51.83 -25 35 26.17 5.59 (1.9 ± 0.7) x 10-3 18 2.895 2.784
2 17 53 23.34 -25 36 15.44 4.95 (1.3 ± 0.6) x 10-3 19 2.542 2.139
3 17 53 34.43 -25 41 51.13 4.57 (1.3 ± 0.7) x 10-3 33 2.649 1.907
4 17 53 35.07 -25 42 49.58 4.36 (1.5 ± 0.8) x 10-3 38 2.677 1.887
5 17 53 39.86 -25 45 11.70 3.54 (1.5 ± 0.8) x 10-3 2258 3.601 1.871
6 17 53 25.58 -25 44 01.36 4.97 (1.1 ± 0.6) x 10-3 20 2.423 1.855
7 17 53 34.70 -25 42 52.55 4.36 (9 ± 6) x 10-4 35 2.827 1.509
8 17 53 39.87 -25 45 12.34 3.54 (1.3 ± 0.9) x 10-3 2234 2.909 1.439
9 17 53 26.52 -25 45 45.12 4.48 (7 ± 5) x 10-4 28 2.820 1.257
10 17 53 39.88 -25 45 11.82 3.54 (1.7 ± 1.4) x 10-3 2379 2.423 1.214
11 17 53 39.86 -25 45 11.69 3.54 (1.0 ± 0.9) x 10-3 2258 3.021 1.173
12 17 53 49.90 -25 45 24.38 4.24 (9 ± 8) x 10-4 43 3.122 1.133
13 17 53 39.88 -25 45 11.82 3.54 (8 ± 8) x 10-4 2379 2.964 0.996
14 17 53 39.87 -25 45 11.83 3.54 (8 ± 9) x 10-4 2379 4.027 0.908
15 17 53 39.86 -25 45 11.79 3.54 (7 ± 8) x 10-4 2319 3.103 0.850
16 17 53 40.38 -25 46 32.90 3.72 (4 ± 7) x 10-4 111 3.790 0.664
17 17 53 39.88 -25 45 11.82 3.54 (8 ± 15) x 10-4 2379 4.061 0.528
18 17 53 39.87 -25 45 11.75 3.54 (5 ± 9) x 10-4 2258 4.622 0.500
19 17 53 41.81 -25 47 15.08 4.08 (3 ± 6) x 10-4 51 2.910 0.485
20 17 53 49.92 -25 45 19.28 4.22 (3 ± 6) x 10-4 47 2.742 0.460
21 17 53 39.86 -25 45 11.79 3.54 (3 ± 14) x 10-4 2319 4.063 0.216
22 17 53 39.86 -25 45 11.69 3.54 N/A 2258 3.021 N/A
23 17 53 39.86 -25 45 11.79 3.54 N/A 2319 4.659 N/A
24 17 53 39.86 -25 45 11.64 3.54 N/A 2296 5.369 N/A
25 17 53 39.91 -25 45 11.46 3.54 N/A 2379 3.795 N/A
26 17 53 39.86 -25 45 11.69 3.54 N/A 2258 4.145 N/A
27 17 53 39.86 -25 45 11.69 3.54 N/A 2274 7.942 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1754.0-2538 Swift-XRT image with known radio, optical and UV sources for 3FGL J1754.0-2538

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X175343.18-253602.7 17 53 43.18 -25 36 02.88 5.13 CHANDRA
2 AX J175331-2538 17 53 31.44 -25 38 38.40 6.90 ASCA
AX J1753.5-2538 17 53 31.01 -25 38 35.88 7.00 INTEGRAL
SWIFT J1753.7-2544 17 53 39.91 -25 45 14.04 8.05 INTEGRAL
3 CXOGSG J175339.8-254513 17 53 39.86 -25 45 14.04 8.05 CHANDRA
4 CXO J175331.7-253424 17 53 31.73 -25 34 24.60 8.18 CHANDRA
X175331.71-253424.6 17 53 31.70 -25 34 24.60 8.19 CHANDRA
CXOGSG J175331.6-253424 17 53 31.68 -25 34 24.24 8.19 CHANDRA
5 CXOGSG J175358.7-254907 17 53 58.78 -25 49 07.32 10.23 CHANDRA
X175358.81-254907.7 17 53 58.80 -25 49 07.68 10.24 CHANDRA
6 CXOGSG J175407.3-255037 17 54 07.32 -25 50 37.32 11.77 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J175359-254107 17 53 59.71 -25 41 08.16 2.27 NVSS
2 [SPT2015] ATCA J1754-2540 17 54 10.39 -25 40 26.04 2.42 FER2FUSRID
[PME2013] J1754-2540 17 54 10.10 -25 40 32.88 2.44 AT2FGLUS
[WBH2005] G3.774+0.045 17 54 10.39 -25 40 27.84 2.45 WBHGP6CM
3 NVSS J175400-254225 17 54 00.79 -25 42 24.84 3.52 NVSS
4 NVSS J175413-254128 17 54 13.20 -25 41 29.04 3.60 NVSS
5 NVSS J175358-253456 17 53 58.90 -25 34 57.00 4.03 NVSS
6 [PME2013] J1754-2544 17 54 09.70 -25 44 08.88 5.52 AT2FGLUS
[WBH2005] G3.720+0.015 17 54 09.91 -25 44 08.88 5.53 WBHGP6CM
7 [WBH2005] G3.865+0.025 17 54 27.19 -25 36 21.96 6.22 WBHGP6CM
[WBH2005] G3.865+0.025 17 54 27.19 -25 36 23.04 6.23 WBHGP20CM
TGSSADR J175427.2-253618 17 54 27.19 -25 36 18.00 6.26 GMRTAS150M
8 PMN J1754-2545 17 54 02.69 -25 45 43.92 6.82 PMN
9 ADG003.8-00.0 17 54 32.81 -25 38 12.84 6.98 DIXON
10 [WBH2005] G3.857-0.013 17 54 34.80 -25 37 54.84 7.47 WBHGP6CM
11 NVSS J175339-253306 17 53 39.79 -25 33 06.84 7.66 NVSS
12 SK003.8-00.1 17 54 33.89 -25 42 30.96 8.04 DIXON
13 [WBH2005] G3.636+0.086 17 53 42.41 -25 46 23.88 8.69 WBHGP6CM
PMN J1753-2546 17 53 40.90 -25 46 35.04 9.02 PMN
14 [WBH2005] G3.910+0.001 17 54 38.81 -25 34 45.12 9.28 WBHGP6CM
[WBH2005] G3.911+0.001 17 54 38.81 -25 34 44.04 9.29 WBHGP20CM
[SPT2015] ATCA J1754-2534 17 54 38.90 -25 34 45.12 9.29 FER2FUSRID
[PME2013] J1754-2534 17 54 38.90 -25 34 45.12 9.29 AT2FGLUS
15 NVSS J175423-254655 17 54 23.30 -25 46 54.84 9.33 NVSS
[WBH2005] G3.912+0.000 17 54 39.19 -25 34 41.16 9.40 WBHGP6CM
[WBH2005] G3.912+0.000 17 54 39.31 -25 34 40.08 9.41 WBHGP20CM
16 NVSS J175444-253632 17 54 44.21 -25 36 33.12 9.80 NVSS
17 GPA 003.72-0.07 17 54 30.41 -25 46 50.16 10.18 GPA
18 NVSS J175444-253453 17 54 43.99 -25 34 53.04 10.29 NVSS
19 NVSS J175316-253411 17 53 16.61 -25 34 12.00 11.27 NVSS
20 NVSS J175311-254013 17 53 11.40 -25 40 14.16 11.48 NVSS
21 [WBH2005] G3.962+0.146 17 54 12.60 -25 27 39.96 11.50 WBHGP6CM
TGSSADR J175412.3-252738 17 54 12.31 -25 27 38.16 11.51 GMRTAS150M
22 NVSS J175443-253136 17 54 43.39 -25 31 36.84 11.84 NVSS
23 [WBH2005] G3.666-0.096 17 54 28.30 -25 50 20.04 12.86 WBHGP6CM
24 NVSS J175426-252712 17 54 26.30 -25 27 11.88 12.92 NVSS
25 [WBH2005] G3.999+0.068 17 54 35.30 -25 28 09.12 13.13 WBHGP6CM
[WBH2005] G3.999+0.068 17 54 35.30 -25 28 08.04 13.14 WBHGP20CM
TGSSADR J175435.4-252806 17 54 35.50 -25 28 06.96 13.18 GMRTAS150M
26 NVSS J175310-253219 17 53 10.20 -25 32 20.04 13.42 NVSS
27 NVSS J175436-252742 17 54 36.89 -25 27 42.12 13.69 NVSS
[WBH2005] G4.009+0.060 17 54 38.59 -25 27 51.12 13.81 WBHGP6CM
[WBH2005] G4.010+0.060 17 54 38.71 -25 27 48.96 13.84 WBHGP20CM
TGSSADR J175438.6-252742 17 54 38.71 -25 27 42.84 13.93 GMRTAS150M
28 NVSS J175450-253000 17 54 50.30 -25 30 01.08 14.06 NVSS
29 [WBH2005] G4.015+0.062 17 54 38.90 -25 27 29.16 14.13 WBHGP6CM
[WBH2005] G4.015+0.062 17 54 38.90 -25 27 28.08 14.16 WBHGP20CM
30 [WBH2005] G3.537+0.108 17 53 23.90 -25 50 49.92 14.69 WBHGP6CM
31 [WBH2005] G3.731-0.170 17 54 54.00 -25 49 14.16 15.60 WBHGP6CM
32 NVSS J175309-254944 17 53 09.10 -25 49 44.04 16.09 NVSS

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