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 J1801.1-2626

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1801.1-2626 Swift-XRT detections in the field for 4FGL J1801.1-2626

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 01 21.19 -26 24 45.34 3.63 (1.38 ± 0.08) x 10-2 552 17.080 17.350
2 18 00 41.96 -26 40 32.17 3.99 (1.7 ± 0.3) x 10-3 78 6.077 5.873
3 18 01 06.59 -26 30 03.46 3.82 (1.8 ± 0.4) x 10-3 161 5.881 5.020
4 18 01 19.41 -26 22 00.01 3.74 (10 ± 3) x 10-4 175 4.056 3.280
5 18 00 43.62 -26 32 54.25 3.96 (7 ± 2) x 10-4 74 3.088 3.124

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 18 01 13.34 -26 22 14.30 3.72 (9 ± 3) x 10-4 239 4.656 2.790
2 18 01 41.86 -26 35 32.99 3.93 (7 ± 3) x 10-4 71 3.198 2.689
3 18 01 34.61 -26 26 14.81 3.81 (7 ± 3) x 10-4 140 2.985 2.671
4 18 01 08.94 -26 20 42.92 3.75 (7 ± 3) x 10-4 156 3.448 2.582
5 18 01 09.24 -26 20 47.80 3.74 (8 ± 3) x 10-4 168 3.688 2.419
6 18 01 13.37 -26 22 14.11 3.72 (8 ± 3) x 10-4 234 3.919 2.419
7 18 01 02.87 -26 20 36.86 3.75 (7 ± 3) x 10-4 161 3.313 2.254
8 18 01 09.22 -26 20 47.83 3.74 (6 ± 3) x 10-4 163 3.015 2.041
9 18 01 36.22 -26 26 08.83 3.83 (5 ± 3) x 10-4 121 3.462 1.960
10 18 01 21.70 -26 23 13.75 3.72 (6 ± 3) x 10-4 225 3.641 1.926
11 18 01 21.15 -26 23 15.66 3.72 (6 ± 3) x 10-4 220 3.146 1.906
12 18 00 27.75 -26 22 58.29 3.80 (5 ± 3) x 10-4 88 2.893 1.892
13 18 01 03.72 -26 23 33.39 3.71 (6 ± 3) x 10-4 235 3.280 1.841
14 18 01 13.30 -26 22 14.43 3.72 (5 ± 3) x 10-4 239 3.748 1.671
15 18 01 21.60 -26 23 13.56 3.72 (5 ± 3) x 10-4 225 2.999 1.624
16 18 00 39.80 -26 21 45.00 3.79 (4 ± 3) x 10-4 120 3.004 1.576
17 18 01 20.15 -26 23 36.70 3.70 (5 ± 4) x 10-4 230 3.848 1.467
18 18 01 10.24 -26 21 45.54 3.70 (4 ± 3) x 10-4 214 3.094 1.373
19 18 01 09.09 -26 22 09.21 3.70 (4 ± 3) x 10-4 226 3.191 1.333
20 18 00 59.72 -26 22 19.84 3.71 (3 ± 3) x 10-4 208 3.067 1.197
21 18 00 57.58 -26 21 42.31 3.72 (3 ± 3) x 10-4 179 3.086 1.065
22 18 00 28.09 -26 21 51.79 3.78 (2 ± 2) x 10-4 89 3.479 0.776

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1801.1-2626 Swift-XRT image with known radio, optical and UV sources for 4FGL J1801.1-2626

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J180128.5-262952 18 01 28.44 -26 29 52.44 5.38 XMM-NEWTON
2 2CXO J180143.1-263521 18 01 43.13 -26 35 21.12 11.61 CHANDRA
3 2CXO J180142.6-263738 18 01 42.65 -26 37 39.00 13.41 CHANDRA
X180142.71-263741.7 18 01 42.72 -26 37 41.88 13.45 CHANDRA
4 2CXO J180146.4-263736 18 01 46.44 -26 37 36.48 13.85 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CV J180120.9-262440 18 01 20.90 -26 24 41.04 2.95 CVCAT
KY Sgr 18 01 21.14 -26 24 44.64 2.96 GCVS
KY SGR 18 01 20.90 -26 24 39.60 2.97 DUERBECK
2 HD 314976 18 01 23.33 -26 27 06.48 3.04 HDEC
3 ESO 175758-2621.3 18 01 05.76 -26 21 25.20 5.06 ESOUPPSALA
4 PMN J1801-2626 18 01 37.70 -26 26 26.88 6.17 PMN
5 NVSS J180134-262120 18 01 34.10 -26 21 20.88 7.36 NVSS
PMN J1801-2621 18 01 35.11 -26 21 29.16 7.44 PMN
6 HD 314969 18 00 42.50 -26 20 56.76 8.24 HDEC
7 NVSS J180147-262926 18 01 47.90 -26 29 26.88 8.99 NVSS
8 NVSS J180101-263516 18 01 01.61 -26 35 16.08 9.09 NVSS
9 PPM 733615 18 01 19.30 -26 17 26.52 9.18 PPM
CD-2612672 18 01 19.27 -26 17 26.52 9.18 ACRS
NSV 9974 18 01 19.30 -26 17 26.16 9.19 GCVSNSVARS
MGPS J180102-263543 18 01 02.11 -26 35 44.16 9.51 MGPS2
10 HD 314977 18 01 32.66 -26 34 39.72 9.69 HDEC
11 HD 314978 18 01 26.71 -26 35 38.04 9.96 HDEC
12 HD 314975 18 01 50.40 -26 31 33.96 10.39 HDEC
13 HD 314971 18 01 50.90 -26 20 33.72 10.83 HDEC
14 MGPS J180156-262954 18 01 56.59 -26 29 53.88 10.98 MGPS2
15 NVSS J180113-261503 18 01 13.10 -26 15 03.96 11.35 NVSS
16 MGPS J180105-261439 18 01 05.21 -26 14 39.12 11.78 MGPS2
17 MGPS J180134-263716 18 01 34.99 -26 37 15.96 12.22 MGPS2
18 NVSS J180201-262134 18 02 01.30 -26 21 33.84 12.44 NVSS
19 MGPS J180023-263522 18 00 23.21 -26 35 22.92 13.82 MGPS2
20 SAO 186127 18 01 46.34 -26 37 36.48 13.84 SAO
HD 314979 18 01 46.54 -26 37 36.12 13.86 HDEC
PPM 267702 18 01 46.54 -26 37 36.12 13.86 PPM
CD-2612685 18 01 46.56 -26 37 36.48 13.86 ACRS

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