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 J1812.8-3144

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1812.8-3144 Swift-XRT detections in the field for 4FGL J1812.8-3144

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 12 44.63 -31 51 29.60 11.02 (5 ± 2) x 10-2 5 2.138 3.000

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1812.8-3144 Swift-XRT image with known radio, optical and UV sources for 4FGL J1812.8-3144

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X181300.78-314423.4 18 13 00.79 -31 44 23.28 1.74 CHANDRA
2CXO J181300.8-314423 18 13 00.86 -31 44 24.00 1.76 CHANDRA
2 2CXO J181232.4-314446 18 12 32.47 -31 44 46.68 4.30 CHANDRA
3 2CXO J181232.2-314756 18 12 32.23 -31 47 56.04 5.46 CHANDRA
4 X181244.55-315135.3 18 12 44.54 -31 51 35.28 7.17 CHANDRA
2CXO J181244.5-315135 18 12 44.59 -31 51 35.64 7.18 CHANDRA
5 2CXO J181330.6-314502 18 13 30.62 -31 45 02.16 8.08 CHANDRA
X181330.73-314502.0 18 13 30.72 -31 45 02.16 8.10 CHANDRA
CXOGSG J181330.7-314503 18 13 30.79 -31 45 03.60 8.12 CHANDRA
6 X181329.97-314642.8 18 13 29.98 -31 46 42.96 8.20 CHANDRA
2CXO J181329.9-314642 18 13 29.98 -31 46 42.96 8.20 CHANDRA
CXOGSG J181329.9-314642 18 13 30.00 -31 46 42.96 8.20 CHANDRA
7 X181326.40-314859.6 18 13 26.40 -31 48 59.76 8.39 CHANDRA
CXOGSG J181326.4-314859 18 13 26.40 -31 48 59.40 8.39 CHANDRA
2CXO J181326.4-314859 18 13 26.40 -31 48 59.40 8.39 CHANDRA
8 2CXO J181333.6-314346 18 13 33.67 -31 43 46.92 8.76 CHANDRA
X181333.69-314346.0 18 13 33.70 -31 43 45.84 8.76 CHANDRA
2RXS J181334.2-314610 18 13 34.22 -31 46 10.56 8.97 ROSAT
1RXS J181334.3-314611 18 13 34.30 -31 46 10.92 8.98 ROSAT
9 2CXO J181335.4-314614 18 13 35.40 -31 46 14.52 9.23 CHANDRA
X181335.42-314614.7 18 13 35.42 -31 46 14.88 9.23 CHANDRA
10 X181333.92-314731.1 18 13 33.91 -31 47 31.20 9.23 CHANDRA
CXOGSG J181333.9-314731 18 13 33.91 -31 47 31.20 9.23 CHANDRA
2CXO J181333.9-314731 18 13 33.94 -31 47 31.20 9.23 CHANDRA
CXOGSG J181335.4-314614 18 13 35.45 -31 46 14.88 9.23 CHANDRA
11 CXOGSG J181326.8-315119 18 13 26.83 -31 51 19.08 9.87 CHANDRA
2CXO J181326.6-315135 18 13 26.64 -31 51 35.28 10.03 CHANDRA
X181326.67-315135.2 18 13 26.66 -31 51 35.28 10.03 CHANDRA
12 X181333.37-314959.1 18 13 33.36 -31 49 59.16 10.17 CHANDRA
2CXO J181333.3-314959 18 13 33.38 -31 49 59.16 10.18 CHANDRA
CXOGSG J181333.3-314959 18 13 33.38 -31 49 59.16 10.18 CHANDRA
13 X181319.98-315313.7 18 13 19.97 -31 53 13.56 10.37 CHANDRA
CXOGSG J181320.0-315313 18 13 20.02 -31 53 13.56 10.38 CHANDRA
2CXO J181320.0-315313 18 13 20.04 -31 53 13.56 10.38 CHANDRA
14 CXOGSG J181339.5-314817 18 13 39.58 -31 48 17.28 10.62 CHANDRA
2CXO J181339.5-314817 18 13 39.58 -31 48 17.28 10.62 CHANDRA
X181339.59-314817.4 18 13 39.60 -31 48 17.28 10.62 CHANDRA
15 2CXO J181338.0-314937 18 13 38.04 -31 49 37.56 10.86 CHANDRA
CXOGSG J181338.0-314937 18 13 38.04 -31 49 37.56 10.86 CHANDRA
X181338.05-314937.8 18 13 38.04 -31 49 37.92 10.86 CHANDRA
CXOGSG J181338.2-314953 18 13 38.26 -31 49 53.76 11.02 CHANDRA
2CXO J181338.2-314953 18 13 38.26 -31 49 53.76 11.03 CHANDRA
X181338.25-314953.8 18 13 38.26 -31 49 53.76 11.03 CHANDRA
16 2CXO J181332.0-315150 18 13 32.04 -31 51 50.04 11.04 CHANDRA
X181332.05-315150.2 18 13 32.04 -31 51 50.04 11.04 CHANDRA
CXOGSG J181332.0-315150 18 13 32.04 -31 51 50.04 11.04 CHANDRA
17 CXOGSG J181338.7-315015 18 13 38.76 -31 50 16.08 11.30 CHANDRA
2CXO J181338.7-315015 18 13 38.78 -31 50 15.72 11.30 CHANDRA
X181338.78-315015.8 18 13 38.78 -31 50 15.72 11.30 CHANDRA
18 2CXO J181329.1-315257 18 13 29.18 -31 52 57.36 11.38 CHANDRA
19 X181345.88-314552.5 18 13 45.89 -31 45 52.56 11.38 CHANDRA
CXOGSG J181345.8-314552 18 13 45.89 -31 45 52.56 11.38 CHANDRA
2CXO J181345.8-314552 18 13 45.89 -31 45 52.56 11.38 CHANDRA
20 X181341.64-315016.8 18 13 41.64 -31 50 16.80 11.84 CHANDRA
2CXO J181341.6-315016 18 13 41.66 -31 50 16.44 11.84 CHANDRA
CXOGSG J181341.6-315016 18 13 41.66 -31 50 16.80 11.85 CHANDRA
21 CXOGSG J181343.9-315041 18 13 43.94 -31 50 41.64 12.47 CHANDRA
2CXO J181343.9-315041 18 13 43.94 -31 50 41.64 12.47 CHANDRA
X181343.97-315041.5 18 13 43.97 -31 50 41.64 12.47 CHANDRA
22 2CXO J181339.0-315217 18 13 39.07 -31 52 17.76 12.49 CHANDRA
CXOGSG J181339.0-315218 18 13 39.07 -31 52 18.12 12.49 CHANDRA
X181339.08-315217.9 18 13 39.07 -31 52 17.76 12.49 CHANDRA
23 2E 1809.2-3157 18 12 28.37 -31 56 35.52 13.03 EINSTEIN
2E 1809.2-3157 18 12 28.25 -31 56 35.52 13.04 EINSTEIN
24 X181347.59-315035.8 18 13 47.59 -31 50 35.88 13.11 CHANDRA
2CXO J181347.5-315035 18 13 47.59 -31 50 35.88 13.11 CHANDRA
CXOGSG J181347.5-315035 18 13 47.59 -31 50 35.52 13.11 CHANDRA
25 XMMSL2 J181223.7-315633 18 12 23.76 -31 56 33.36 13.42 XMM-NEWTON
26 2CXO J181327.3-315551 18 13 27.36 -31 55 51.24 13.43 CHANDRA
1RXS J181223.7-315636 18 12 23.69 -31 56 35.88 13.46 ROSAT
1RXS J181223.7-315636 18 12 23.69 -31 56 36.60 13.47 ROSAT
27 2CXO J181331.3-315525 18 13 31.34 -31 55 25.68 13.57 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 V2655 Sgr 18 12 48.53 -31 45 10.44 1.04 GCVS
2 NVSS J181300-314407 18 13 01.01 -31 44 08.16 1.83 NVSS
3 V4122 Sgr 18 12 41.04 -31 45 00.00 2.50 GCVS
4 NSV 10364 18 12 59.11 -31 46 45.84 2.54 GCVSNSVARS
5 WDS J18131-3143 18 13 06.00 -31 43 00.12 3.27 WDS
6 NVSS J181230-314123 18 12 30.50 -31 41 22.92 5.72 NVSS
7 PGC 205727 18 13 06.60 -31 38 15.00 7.03 PGC2003
MGPS J181223-314759 18 12 23.30 -31 48 00.00 7.10 MGPS2
8 NVSS J181223-314807 18 12 23.21 -31 48 07.92 7.18 NVSS
TGSSADR J181223.1-314806 18 12 23.11 -31 48 06.12 7.18 GMRTAS150M
9 V4123 Sgr 18 12 51.00 -31 36 48.24 7.83 GCVS
10 OU-316 18 12 18.00 -31 41 12.84 8.13 DIXON
11 NSV 10351 18 12 21.31 -31 50 25.08 8.83 GCVSNSVARS
12 NVSS J181238-315303 18 12 38.11 -31 53 03.12 8.98 NVSS
13 V2698 Sgr 18 13 29.21 -31 39 48.60 9.14 GCVS
14 NSV 10372 18 13 35.11 -31 46 08.04 9.14 GCVSNSVARS
15 HD 319111 18 12 05.64 -31 41 45.96 10.41 HDEC
16 V2658 Sgr 18 12 50.06 -31 34 08.04 10.51 GCVS
17 NSV 10357 18 12 51.41 -31 55 10.92 10.56 GCVSNSVARS
18 NGC 6569 18 13 36.00 -31 49 59.88 10.66 NGC2000
19 HD 319115 18 12 41.78 -31 55 11.64 10.82 HDEC
20 ESO 181022-3150.5 18 13 38.16 -31 49 37.20 10.88 ESOUPPSALA
21 PPM 749487 18 12 51.77 -31 33 41.40 10.94 PPM
NGC 6569 18 13 38.81 -31 49 36.84 11.00 GLOBCLUST
MGPS J181246-315559 18 12 46.30 -31 55 59.88 11.45 MGPS2
TGSSADR J181246.4-315600 18 12 46.49 -31 55 59.88 11.45 GMRTAS150M
22 NVSS J181246-315602 18 12 46.49 -31 56 02.04 11.48 NVSS
23 V2711 Sgr 18 13 47.16 -31 46 10.20 11.68 GCVS
MGPS J181222-315437 18 12 22.39 -31 54 38.16 11.88 MGPS2
TGSSADR J181222.2-315440 18 12 22.20 -31 54 39.96 11.94 GMRTAS150M
24 NVSS J181222-315441 18 12 22.30 -31 54 41.04 11.95 NVSS
25 V2709 Sgr 18 13 45.84 -31 38 42.00 12.77 GCVS
26 NVSS J181323-313336 18 13 23.81 -31 33 37.08 12.85 NVSS
27 NVSS J181224-315633 18 12 24.10 -31 56 33.00 13.38 NVSS
28 HD 319116 18 13 46.73 -31 51 33.84 13.42 HDEC
29 V4629 Sgr 18 11 59.40 -31 52 24.24 13.73 GCVS
30 NVSS J181215-313259 18 12 15.70 -31 32 58.92 14.05 NVSS
TGSSADR J181215.6-313257 18 12 15.70 -31 32 57.12 14.08 GMRTAS150M
MGPS J181215-313254 18 12 15.79 -31 32 53.88 14.11 MGPS2
TXS 1809-315 18 12 15.00 -31 32 53.88 14.21 TEXAS
31 PMN J1812-3132 18 12 13.39 -31 32 51.00 14.44 PMN
32 HD 319117 18 13 45.53 -31 54 38.16 15.04 HDEC
33 WDS J18138-3155 18 13 48.00 -31 55 00.12 15.67 WDS

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