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 J1717.8+1955

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1717.8+1955 Swift-XRT detections in the field for 4FGL J1717.8+1955

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 17 40.66 +19 49 51.31 5.40 (2.9 ± 1.0) x 10-3 19 3.366 3.073

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 18 32.80 +19 59 47.88 6.93 (2.1 ± 0.7) x 10-3 11 2.855 2.885
2 17 17 41.55 +19 55 16.41 5.82 (2.5 ± 0.9) x 10-3 22 3.300 2.862
3 17 17 19.32 +19 52 04.94 7.09 (1.7 ± 0.7) x 10-3 10 2.504 2.515
4 17 17 01.56 +19 59 17.42 6.04 (2.1 ± 0.9) x 10-3 11 2.801 2.466
5 17 17 28.63 +20 06 39.68 5.70 (1.7 ± 0.8) x 10-3 10 2.390 2.278

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1717.8+1955 Swift-XRT image with known radio, optical and UV sources for 4FGL J1717.8+1955

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J171738.4+195325 17 17 38.42 +19 53 25.08 2.94 XMM-NEWTON
2 4XMM J171757.6+195254 17 17 57.60 +19 52 54.48 2.96 XMM-NEWTON
4XMM J171737.8+195302 17 17 37.85 +19 53 02.76 3.27 XMM-NEWTON
3 4XMM J171737.2+195159 17 17 37.20 +19 51 59.76 4.09 XMM-NEWTON
4 4XMM J171733.7+195214 17 17 33.77 +19 52 14.52 4.52 XMM-NEWTON
5 4XMM J171756.1+195014 17 17 56.16 +19 50 14.64 5.09 XMM-NEWTON
6 4XMM J171743.6+194953 17 17 43.70 +19 49 53.76 5.29 XMM-NEWTON
7 4XMM J171740.4+194949 17 17 40.44 +19 49 49.80 5.57 XMM-NEWTON
8 4XMM J171758.3+194946 17 17 58.34 +19 49 46.20 5.72 XMM-NEWTON
9 4XMM J171728.0+195007 17 17 28.01 +19 50 07.44 6.94 XMM-NEWTON
10 4XMM J171724.9+195031 17 17 24.98 +19 50 31.56 7.20 XMM-NEWTON
11 4XMM J171723.4+195100 17 17 23.50 +19 51 00.36 7.20 XMM-NEWTON
12 4XMM J171719.6+195206 17 17 19.63 +19 52 06.60 7.47 XMM-NEWTON
13 4XMM J171818.7+195126 17 18 18.74 +19 51 27.00 7.89 XMM-NEWTON
14 4XMM J171813.3+194846 17 18 13.34 +19 48 46.80 8.50 XMM-NEWTON
15 4XMM J171822.7+195155 17 18 22.80 +19 51 55.44 8.56 XMM-NEWTON
4XMM J171813.1+194830 17 18 13.15 +19 48 30.60 8.67 XMM-NEWTON
16 4XMM J171823.1+195101 17 18 23.14 +19 51 01.08 9.01 XMM-NEWTON
17 4XMM J171714.6+195056 17 17 14.64 +19 50 56.76 9.03 XMM-NEWTON
18 4XMM J171750.6+194546 17 17 50.62 +19 45 46.80 9.27 XMM-NEWTON
19 4XMM J171732.9+194619 17 17 32.95 +19 46 19.20 9.49 XMM-NEWTON
20 4XMM J171744.3+194535 17 17 44.38 +19 45 35.64 9.50 XMM-NEWTON
4XMM J171730.9+194614 17 17 30.96 +19 46 14.52 9.75 XMM-NEWTON
21 4XMM J171801.8+194524 17 18 01.90 +19 45 24.12 10.11 XMM-NEWTON
22 4XMM J171719.1+194739 17 17 19.13 +19 47 39.48 10.17 XMM-NEWTON
23 4XMM J171728.0+194602 17 17 28.03 +19 46 03.00 10.24 XMM-NEWTON
4XMM J171717.8+194719 17 17 17.83 +19 47 20.04 10.62 XMM-NEWTON
24 4XMM J171707.0+195000 17 17 07.06 +19 50 00.60 11.04 XMM-NEWTON
25 4XMM J171812.1+194526 17 18 12.14 +19 45 26.28 11.05 XMM-NEWTON
26 1BMW 171740.6+194402 17 17 40.58 +19 44 02.04 11.18 ROSAT
27 4XMM J171714.3+194648 17 17 14.33 +19 46 48.72 11.56 XMM-NEWTON
28 4XMM J171708.8+194813 17 17 08.86 +19 48 12.96 11.62 XMM-NEWTON
4XMM J171714.5+194620 17 17 14.59 +19 46 20.28 11.86 XMM-NEWTON
29 4XMM J171704.3+194902 17 17 04.34 +19 49 02.28 12.07 XMM-NEWTON
30 4XMM J171836.9+195049 17 18 36.96 +19 50 49.92 12.07 XMM-NEWTON
4XMM J171838.3+195106 17 18 38.33 +19 51 06.48 12.27 XMM-NEWTON
1BMW 171810.3+194346 17 18 10.27 +19 43 46.56 12.34 ROSAT
31 4XMM J171724.1+194406 17 17 24.19 +19 44 06.72 12.37 XMM-NEWTON
32 4XMM J171810.4+194344 17 18 10.44 +19 43 44.76 12.38 XMM-NEWTON
33 4XMM J171838.1+195015 17 18 38.16 +19 50 15.72 12.53 XMM-NEWTON
34 4XMM J171834.9+194824 17 18 34.94 +19 48 24.84 12.70 XMM-NEWTON
35 4XMM J171710.7+194516 17 17 10.70 +19 45 16.20 13.27 XMM-NEWTON
36 4XMM J171659.0+194755 17 16 59.04 +19 47 55.32 13.71 XMM-NEWTON
37 4XMM J171824.5+194317 17 18 24.55 +19 43 17.40 14.44 XMM-NEWTON
38 4XMM J171706.8+194344 17 17 06.86 +19 43 44.76 15.00 XMM-NEWTON
39 4XMM J171658.0+194515 17 16 58.08 +19 45 15.84 15.43 XMM-NEWTON
40 4XMM J171837.2+194436 17 18 37.27 +19 44 36.60 15.44 XMM-NEWTON
41 4XMM J171658.5+194401 17 16 58.54 +19 44 01.68 16.16 XMM-NEWTON
42 4XMM J171659.1+194302 17 16 59.16 +19 43 02.64 16.75 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1715+1958 17 17 41.71 +19 55 21.00 1.72 NORTH6CM
1 NVSS J171741+195521 17 17 41.40 +19 55 21.00 1.77 NVSS
QORG J171741.4+195520 17 17 41.40 +19 55 19.92 1.78 QORGCAT
TGSSADR J171741.3+195522 17 17 41.40 +19 55 22.08 1.79 GMRTAS150M
2 GB6 J1717+1955 17 17 38.90 +19 55 28.92 2.38 GB6
3 PGC 1610910 17 17 32.50 +19 56 18.96 4.05 PGC2003
4 NVSS J171807+195436 17 18 07.99 +19 54 36.00 4.51 NVSS
5 PGC 1612498 17 17 41.59 +19 59 16.08 4.56 PGC2003
6 PGC 1611342 17 18 06.41 +19 57 15.12 4.68 PGC2003
7 QORG J171740.4+194949 17 17 40.39 +19 49 49.08 5.59 QORGCAT
8 V387 HER 17 18 19.78 +19 53 38.76 7.40 WOODEBCAT
9 NVSS J171721+194948 17 17 21.41 +19 49 49.08 8.31 NVSS
10 PGC 2817050 17 18 14.30 +20 03 09.00 10.08 PGC2003
11 PGC 1614052 17 18 21.91 +20 01 57.00 10.39 PGC2003
12 NVSS J171816+200307 17 18 16.80 +20 03 07.92 10.42 NVSS
13 PGC 1613278 17 18 27.19 +20 00 33.84 10.57 PGC2003
14 NVSS J171833+195141 17 18 33.41 +19 51 41.04 11.00 NVSS
15 QORG J171810.4+194345 17 18 10.39 +19 43 45.12 12.37 QORGCAT
16 NVSS J171835+194820 17 18 35.30 +19 48 20.16 12.81 NVSS
17 H 1714+19 17 17 04.10 +19 44 48.84 14.68 DIXON
18 OT+125 17 17 06.19 +19 43 49.08 15.05 DIXON
MITG J1716+1944 17 16 59.50 +19 44 12.84 15.87 MITGB6CM
VLSSr J171658.9+194407 17 16 58.90 +19 44 07.08 16.03 VLSSR
TGSSADR J171658.5+194402 17 16 58.61 +19 44 03.12 16.15 GMRTAS150M
19 NVSS J171658+194402 17 16 58.51 +19 44 03.12 16.16 NVSS
TXS 1714+197 17 16 58.51 +19 44 02.04 16.17 TEXAS
4C+19.58 17 16 58.80 +19 43 54.12 16.20 DIXON
GLEAM J171658+194357 17 16 58.51 +19 43 58.08 16.21 GLEAMEGCAT
PKS J1716+1943 17 16 59.11 +19 43 41.16 16.31 PKSCAT90
GB6 J1716+1943 17 16 59.30 +19 43 37.92 16.31 GB6
1714+1946 17 16 58.90 +19 43 41.88 16.32 NORTH20CM
1714+1946 17 16 58.90 +19 43 41.88 16.32 NORTH6CM
MITG J1716+1943 17 16 58.70 +19 43 35.04 16.44 MITGB6CM

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