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.

1FGL J0137.8+5814

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0137.8+5814 Swift-XRT detections in the field for 1FGL J0137.8+5814

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 01 37 50.33 +58 14 11.14 3.62 (2.03 ± 0.07) x 10-1 794 26.590 27.220
2 01 36 19.60 +58 10 46.48 5.59 (8 ± 2) x 10-3 28 4.938 5.096
3 01 38 27.18 +58 13 32.76 5.96 (3.4 ± 1.1) x 10-3 18 3.273 3.165

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 01 36 36.50 +58 15 05.14 7.27 (2.2 ± 0.8) x 10-3 9 2.701 2.661
2 01 38 55.66 +58 09 23.06 7.97 (2.2 ± 0.9) x 10-3 9 2.367 2.552
3 01 37 50.30 +58 14 11.16 3.62 (2.0 ± 0.9) x 10-3 784 2.285 2.118
4 01 37 50.34 +58 14 11.14 3.62 N/A 789 2.775 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0137.8+5814 Swift-XRT image with known radio, optical and UV sources for 1FGL J0137.8+5814

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1RXS J013748.0+581422 01 37 48.00 +58 14 22.56 0.59 ROSAT
1RXS J013748.0+581422 01 37 48.00 +58 14 21.84 0.60 ROSAT
1 2XMM J013750.3+581410 01 37 50.35 +58 14 10.68 0.80 XMM-NEWTON
XMMSL1 J013750.1+581409 01 37 50.18 +58 14 09.24 0.82 XMM-NEWTON
2XMM J013752.8+581415 01 37 52.85 +58 14 15.36 0.87 XMM-NEWTON
2 2XMM J013751.0+581252 01 37 51.00 +58 12 52.56 2.10 XMM-NEWTON
3 2XMM J013810.9+581052 01 38 10.97 +58 10 51.96 5.02 XMM-NEWTON
4 2XMM J013827.0+581331 01 38 27.02 +58 13 31.44 5.23 XMM-NEWTON
5 2XMM J013744.1+580942 01 37 44.21 +58 09 42.12 5.29 XMM-NEWTON
6 2XMM J013837.1+581502 01 38 37.20 +58 15 02.52 6.37 XMM-NEWTON
7 2XMM J013751.0+580823 01 37 51.02 +58 08 22.92 6.58 XMM-NEWTON
8 2XMM J013836.9+581646 01 38 36.98 +58 16 46.56 6.59 XMM-NEWTON
9 2XMM J013847.1+581228 01 38 47.11 +58 12 28.08 8.07 XMM-NEWTON
10 2XMM J013838.5+582012 01 38 38.52 +58 20 12.12 8.38 XMM-NEWTON
11 2XMM J013831.0+580802 01 38 31.08 +58 08 02.40 8.88 XMM-NEWTON
12 2XMM J013902.9+581746 01 39 02.95 +58 17 46.68 10.15 XMM-NEWTON
13 2XMM J013847.7+580808 01 38 47.71 +58 08 08.88 10.33 XMM-NEWTON
14 2XMM J013855.5+580922 01 38 55.51 +58 09 22.68 10.41 XMM-NEWTON
WR3 01 38 55.51 +58 09 21.96 10.41 XMM-NEWTON
15 2XMM J013914.3+581008 01 39 14.33 +58 10 08.40 12.25 XMM-NEWTON
16 2XMM J013913.7+582025 01 39 13.78 +58 20 25.44 12.44 XMM-NEWTON
17 2XMM J013916.9+580425 01 39 16.99 +58 04 25.68 15.69 XMM-NEWTON
18 2XMM J013917.0+580304 01 39 17.06 +58 03 04.68 16.63 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
7C 013432.9+575911 01 37 50.40 +58 14 26.16 0.56 GP7C151MHZ
QORG J013748.0+581422 01 37 48.00 +58 14 21.84 0.60 QORGCAT
GB6 J0137+5814 01 37 50.40 +58 14 18.96 0.67 GB6
WN 0134.5+5759 01 37 50.21 +58 14 16.08 0.70 WENSS
1 NVSS J013744+581521 01 37 44.40 +58 15 21.96 0.71 NVSS
0134+5759 01 37 50.59 +58 14 15.00 0.74 NORTH6CM
0134+5759 01 37 50.59 +58 14 15.00 0.74 NORTH20CM
TXS 0134+579 01 37 50.11 +58 14 12.84 0.75 TEXAS
2 NVSS J013750+581413 01 37 50.30 +58 14 12.84 0.76 NVSS
3 NSV 15339 01 37 12.79 +58 15 23.04 4.75 GCVSNSVARS
4 SAO 22454 01 37 56.93 +58 10 01.92 5.04 SAO
PPM 26548 01 37 56.88 +58 10 01.56 5.04 PPM
BD+57 347 01 37 56.83 +58 10 00.84 5.05 ACRS
5 NVSS J013826+581339 01 38 26.21 +58 13 40.08 5.09 NVSS
WN 0135.1+5758 01 38 26.30 +58 13 40.08 5.10 WENSS
6 NVSS J013721+582148 01 37 21.10 +58 21 47.88 7.76 NVSS
WN 0135.0+5753 01 38 22.70 +58 08 30.84 7.83 WENSS
7 NVSS J013822+580827 01 38 22.30 +58 08 27.96 7.85 NVSS
WN 0134.0+5806 01 37 21.00 +58 21 59.04 7.93 WENSS
8 NVSS J013647+581524 01 36 47.59 +58 15 24.12 8.06 NVSS
9 PGC 137937 01 37 25.20 +58 23 52.08 9.44 PGC2003
10 9974 01 38 47.76 +58 09 13.68 9.65 WACKERLING
11 NSV 15350 01 38 55.61 +58 09 23.04 10.41 GCVSNSVARS
WR 3 01 38 55.63 +58 09 22.68 10.42 WRCAT
HIP 7681 01 38 55.63 +58 09 22.68 10.42 HIPPARCOS
HD 9974 01 38 55.63 +58 09 22.68 10.42 HIC
HD 9974 01 38 57.82 +58 09 32.40 10.58 BATTEN
12 NVSS J013854+582153 01 38 55.01 +58 21 52.92 11.12 NVSS
WN 0135.6+5806 01 38 54.50 +58 21 59.04 11.13 WENSS
13 SAO 22449 01 37 37.22 +58 26 06.72 11.26 SAO
PPM 26543 01 37 37.30 +58 26 06.72 11.26 PPM
BD+57 345 01 37 37.32 +58 26 07.08 11.27 ACRS
WN 0136.0+5759 01 39 19.70 +58 14 31.92 11.96 WENSS
PSR J0139+5814 01 39 19.70 +58 14 31.92 11.97 ATNFPULSAR
14 NVSS J013919+581437 01 39 19.99 +58 14 36.96 12.00 NVSS
15 PGC 2796661 01 36 35.81 +58 07 36.12 12.11 PGC2003
WN 0133.7+5810 01 36 59.71 +58 25 48.00 12.62 WENSS
WN 0133.0+5755 01 36 18.70 +58 10 36.84 12.63 WENSS
GB6 J0136+5810 01 36 19.99 +58 10 09.84 12.64 GB6
16 NVSS J013618+581035 01 36 18.60 +58 10 36.12 12.65 NVSS
17 NVSS J013658+582546 01 36 58.80 +58 25 45.84 12.66 NVSS
7C 013302.4+575504 01 36 19.20 +58 10 22.08 12.67 GP7C151MHZ
PPM 26523 01 36 55.39 +58 25 48.72 12.92 PPM
SAO 22433 01 36 55.30 +58 25 48.36 12.92 SAO
BD+57 340 01 36 55.34 +58 25 49.80 12.94 ACRS
18 PGC 137954 01 38 59.59 +58 25 28.92 14.05 PGC2003
19 OC+559 01 39 13.80 +58 04 12.00 15.53 DIXON

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