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 J1843.7-0326

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1843.7-0326 Swift-XRT detections in the field for 4FGL J1843.7-0326

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 44 42.49 -03 19 29.36 5.76 (1.0 ± 0.3) x 10-3 14 3.100 3.185

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 42 53.48 -03 27 37.17 5.40 (10 ± 4) x 10-4 14 3.046 2.727
2 18 43 11.71 -03 19 55.34 5.59 (7 ± 3) x 10-4 12 2.414 2.336
3 18 43 44.09 -03 28 45.30 4.78 (7 ± 4) x 10-4 41 2.754 2.145

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1843.7-0326 Swift-XRT image with known radio, optical and UV sources for 4FGL J1843.7-0326

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X184348.89-032435.3 18 43 48.89 -03 24 35.28 2.11 CHANDRA
2 2CXO J184334.7-032448 18 43 34.70 -03 24 48.24 2.62 CHANDRA
3 2CXO J184329.4-032726 18 43 29.40 -03 27 26.64 3.73 CHANDRA
4XMM J184329.4-032727 18 43 29.42 -03 27 28.08 3.73 XMM-NEWTON
CXOGSG J184329.4-032727 18 43 29.40 -03 27 27.36 3.74 CHANDRA
4 2CXO J184359.4-032852 18 43 59.45 -03 28 53.04 4.78 CHANDRA
CXOGSG J184359.4-032853 18 43 59.42 -03 28 53.04 4.78 CHANDRA
X184359.47-032853.5 18 43 59.47 -03 28 53.40 4.79 CHANDRA
4XMM J184334.8-033029 18 43 34.85 -03 30 29.52 4.79 XMM-NEWTON
5 2CXO J184334.6-033030 18 43 34.63 -03 30 30.60 4.83 CHANDRA
CXOGSG J184334.6-033030 18 43 34.63 -03 30 30.96 4.84 CHANDRA
6 2CXO J184345.8-032122 18 43 45.89 -03 21 22.68 4.88 CHANDRA
7 X184356.27-032956.3 18 43 56.28 -03 29 56.40 4.89 CHANDRA
2CXO J184356.2-032956 18 43 56.28 -03 29 56.76 4.90 CHANDRA
CXOGSG J184356.1-032958 18 43 56.16 -03 29 58.20 4.90 CHANDRA
8 4XMM J184341.4-032120 18 43 41.47 -03 21 20.88 4.90 XMM-NEWTON
CXOGSG J184356.2-032956 18 43 56.28 -03 29 56.76 4.90 CHANDRA
4XMM J184356.5-032953 18 43 56.57 -03 29 53.88 4.91 XMM-NEWTON
4XMM J184320.8-032619 18 43 20.88 -03 26 19.68 5.65 XMM-NEWTON
9 2CXO J184320.8-032618 18 43 20.83 -03 26 18.60 5.67 CHANDRA
CXOGSG J184320.7-032619 18 43 20.81 -03 26 18.96 5.68 CHANDRA
10 2CXO J184322.0-032836 18 43 22.10 -03 28 36.48 5.86 CHANDRA
CXOGSG J184322.1-032836 18 43 22.10 -03 28 36.84 5.86 CHANDRA
4XMM J184321.8-032834 18 43 21.82 -03 28 34.68 5.91 XMM-NEWTON
11 X184407.54-032457.0 18 44 07.54 -03 24 56.88 6.12 CHANDRA
12 2CXO J184353.1-033217 18 43 53.11 -03 32 17.16 6.52 CHANDRA
CXOGSG J184353.0-033217 18 43 53.09 -03 32 17.52 6.52 CHANDRA
CXOGSG J184353.1-033218 18 43 53.09 -03 32 18.96 6.55 CHANDRA
X184353.13-033218.8 18 43 53.14 -03 32 18.96 6.55 CHANDRA
13 2CXO J184359.0-033156 18 43 59.04 -03 31 56.28 6.91 CHANDRA
X184359.05-033157.4 18 43 59.04 -03 31 57.36 6.92 CHANDRA
14 X184411.39-032834.1 18 44 11.40 -03 28 33.96 7.34 CHANDRA
2CXO J184411.4-032834 18 44 11.40 -03 28 34.32 7.34 CHANDRA
CXOGSG J184411.4-032834 18 44 11.40 -03 28 34.32 7.34 CHANDRA
15 4XMM J184318.2-033020 18 43 18.19 -03 30 20.16 7.55 XMM-NEWTON
16 2CXO J184338.1-033402 18 43 38.21 -03 34 01.92 7.93 CHANDRA
17 2CXO J184318.7-032106 18 43 18.72 -03 21 06.12 8.03 CHANDRA
18 2CXO J184402.8-033240 18 44 02.83 -03 32 40.56 8.05 CHANDRA
19 CXOGSG J184329.6-031852 18 43 29.69 -03 18 52.56 8.12 CHANDRA
20 X184349.55-033415.9 18 43 49.56 -03 34 15.96 8.18 CHANDRA
21 4XMM J184357.1-031828 18 43 57.12 -03 18 28.80 8.45 XMM-NEWTON
4XMM J184322.0-031929 18 43 22.06 -03 19 29.64 8.60 XMM-NEWTON
22 CXOGSG J184321.9-031929 18 43 21.96 -03 19 29.64 8.62 CHANDRA
2CXO J184321.9-031929 18 43 21.96 -03 19 29.28 8.62 CHANDRA
23 2CXO J184400.6-033359 18 44 00.67 -03 33 59.76 8.87 CHANDRA
X184400.71-033400.1 18 44 00.72 -03 34 00.12 8.88 CHANDRA
CXOGSG J184400.7-033359 18 44 00.79 -03 34 00.12 8.89 CHANDRA
24 4XMM J184350.9-031720 18 43 50.93 -03 17 20.76 9.07 XMM-NEWTON
25 CXOGSG J184326.0-031814 18 43 26.04 -03 18 14.04 9.10 CHANDRA
26 4XMM J184307.0-032547 18 43 07.01 -03 25 47.64 9.13 XMM-NEWTON
27 4XMM J184330.1-031733 18 43 30.12 -03 17 33.72 9.28 XMM-NEWTON
28 2CXO J184419.5-032841 18 44 19.51 -03 28 41.16 9.31 CHANDRA
CXOGSG J184419.5-032841 18 44 19.54 -03 28 41.16 9.32 CHANDRA
X184419.55-032841.4 18 44 19.56 -03 28 41.52 9.32 CHANDRA
29 2CXO J184306.0-032649 18 43 06.05 -03 26 49.56 9.38 CHANDRA
30 CXOGSG J184420.4-033038 18 44 20.47 -03 30 38.16 10.22 CHANDRA
X184420.47-033038.2 18 44 20.47 -03 30 38.16 10.22 CHANDRA
2CXO J184420.4-033038 18 44 20.47 -03 30 38.16 10.22 CHANDRA
4XMM J184302.8-032359 18 43 02.88 -03 23 59.28 10.39 XMM-NEWTON
4XMM J184310.8-031946 18 43 10.82 -03 19 46.92 10.40 XMM-NEWTON
31 CXOGSG J184310.7-031946 18 43 10.80 -03 19 46.20 10.41 CHANDRA
32 2CXO J184302.8-032355 18 43 02.83 -03 23 56.04 10.41 CHANDRA
2CXO J184310.7-031945 18 43 10.80 -03 19 45.84 10.41 CHANDRA
33 X184425.20-032536.5 18 44 25.20 -03 25 36.48 10.42 CHANDRA
34 2CXO J184307.7-032044 18 43 07.70 -03 20 44.16 10.49 CHANDRA
CXOGSG J184307.6-032044 18 43 07.68 -03 20 44.16 10.49 CHANDRA
35 X184415.44-033304.4 18 44 15.43 -03 33 04.32 10.51 CHANDRA
36 2CXO J184406.7-031726 18 44 06.70 -03 17 26.88 10.51 CHANDRA
2CXO J184415.4-033304 18 44 15.48 -03 33 04.32 10.51 CHANDRA
4XMM J184303.4-032257 18 43 03.48 -03 22 57.36 10.51 XMM-NEWTON
37 CXOGSG J184303.4-032258 18 43 03.46 -03 22 58.44 10.52 CHANDRA
2CXO J184303.4-032256 18 43 03.46 -03 22 56.28 10.52 CHANDRA
4XMM J184406.5-031721 18 44 06.50 -03 17 21.84 10.55 XMM-NEWTON
38 4XMM J184320.4-031720 18 43 20.40 -03 17 20.76 10.59 XMM-NEWTON
2CXO J184309.1-031952 18 43 09.17 -03 19 53.04 10.67 CHANDRA
39 2CXO J184426.4-032440 18 44 26.47 -03 24 41.04 10.82 CHANDRA
40 4XMM J184358.4-031556 18 43 58.49 -03 15 56.16 10.94 XMM-NEWTON
41 4XMM J184321.0-031644 18 43 21.05 -03 16 44.04 11.02 XMM-NEWTON
42 CXOGSG J184312.4-031801 18 43 12.48 -03 18 01.44 11.28 CHANDRA
2CXO J184312.4-031801 18 43 12.48 -03 18 01.08 11.28 CHANDRA
43 X184414.58-033429.0 18 44 14.59 -03 34 28.92 11.33 CHANDRA
44 2CXO J184428.4-032422 18 44 28.44 -03 24 22.68 11.36 CHANDRA
45 2CXO J184316.7-033541 18 43 16.75 -03 35 41.28 11.59 CHANDRA
CXOGSG J184316.7-033542 18 43 16.75 -03 35 42.36 11.61 CHANDRA
46 X184420.19-033347.6 18 44 20.18 -03 33 47.52 11.88 CHANDRA
CXOGSG J184420.2-033347 18 44 20.21 -03 33 47.52 11.88 CHANDRA
2CXO J184420.2-033347 18 44 20.23 -03 33 47.88 11.89 CHANDRA
4XMM J184255.9-032706 18 42 55.90 -03 27 06.48 11.92 XMM-NEWTON
47 2CXO J184255.8-032706 18 42 55.87 -03 27 06.48 11.93 CHANDRA
CXOGSG J184255.8-032709 18 42 55.82 -03 27 09.00 11.94 CHANDRA
48 4XMM J184417.8-031751 18 44 17.81 -03 17 51.72 11.96 XMM-NEWTON
49 4XMM J184403.3-031517 18 44 03.41 -03 15 17.28 12.01 XMM-NEWTON
50 2CXO J184424.8-031951 18 44 24.89 -03 19 51.96 12.12 CHANDRA
X184424.95-031952.4 18 44 24.96 -03 19 52.32 12.13 CHANDRA
51 4XMM J184301.5-031957 18 43 01.58 -03 19 57.72 12.20 XMM-NEWTON
52 2CXO J184324.9-033745 18 43 24.98 -03 37 45.48 12.43 CHANDRA
CXOGSG J184324.9-033745 18 43 24.98 -03 37 45.84 12.44 CHANDRA
53 2CXO J184303.4-033349 18 43 03.48 -03 33 49.32 12.56 CHANDRA
CXOGSG J184303.4-033349 18 43 03.48 -03 33 49.68 12.56 CHANDRA
4XMM J184258.3-031940 18 42 58.39 -03 19 40.08 13.04 XMM-NEWTON
54 CXOGSG J184258.3-031940 18 42 58.34 -03 19 40.08 13.04 CHANDRA
2CXO J184258.3-031940 18 42 58.32 -03 19 40.08 13.05 CHANDRA
55 CXOGSG J184307.3-031643 18 43 07.32 -03 16 42.96 13.12 CHANDRA
56 CXOGSG J184423.8-033439 18 44 23.83 -03 34 39.00 13.12 CHANDRA
2CXO J184307.2-031642 18 43 07.30 -03 16 42.96 13.12 CHANDRA
X184423.81-033439.3 18 44 23.81 -03 34 39.36 13.12 CHANDRA
2CXO J184423.9-033438 18 44 23.90 -03 34 39.00 13.14 CHANDRA
57 2CXO J184256.8-031916 18 42 56.86 -03 19 16.68 13.56 CHANDRA
58 4XMM J184259.6-031758 18 42 59.62 -03 17 58.56 13.72 XMM-NEWTON
59 CXOGSG J184307.0-031552 18 43 07.06 -03 15 52.20 13.78 CHANDRA
60 CXOGSG J184301.9-031641 18 43 01.94 -03 16 41.16 14.09 CHANDRA
2CXO J184301.9-031641 18 43 01.92 -03 16 41.16 14.10 CHANDRA
61 4XMM J184304.0-031603 18 43 04.01 -03 16 03.36 14.16 XMM-NEWTON
62 CXOGSG J184304.0-031438 18 43 04.10 -03 14 38.04 15.20 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MAGPIS Discrete G28.96575+0.11 18 43 46.90 -03 28 35.04 2.50 MAGPIS
2 MAGPIS Diffuse G29.0167+0.1722 18 43 34.70 -03 24 48.96 2.62 MAGPIS
MAGPIS Discrete G28.99820+0.18 18 43 34.61 -03 24 48.96 2.63 MAGPIS
3 7I 25 18 43 31.70 -03 26 56.40 3.04 WACKERLING
4 QORG J184335.6-032907 18 43 35.59 -03 29 07.08 3.51 QORGCAT
5 NVSS J184356-032817 18 43 56.90 -03 28 18.12 3.94 NVSS
6 PMN J1843-0327 18 43 59.59 -03 27 51.84 4.33 PMN
7 NVSS J184400-032703 18 44 00.60 -03 27 02.88 4.34 NVSS
QORG J184400.7-032704 18 44 00.70 -03 27 03.96 4.37 QORGCAT
8 MAGPIS Discrete G28.99600+0.22 18 43 27.91 -03 24 06.12 4.43 MAGPIS
9 [WBH2005] G28.987+0.071 18 43 58.80 -03 28 41.88 4.53 WBHGP6CM
[WBH2005] G29.001+0.071 18 44 00.50 -03 27 56.88 4.57 WBHGP6CM
MAGPIS Diffuse G29.0028+0.0861 18 44 00.79 -03 27 50.04 4.60 MAGPIS
[WBH2005] G29.004+0.069 18 44 01.01 -03 27 48.96 4.65 WBHGP6CM
10 MAGPIS Discrete G29.09941+0.11 18 44 01.99 -03 21 29.88 6.60 MAGPIS
11 MAGPIS Discrete G29.05856+0.05 18 44 10.51 -03 25 21.00 6.80 MAGPIS
12 PPM 707237 18 43 27.65 -03 31 53.04 6.91 PPM
13 [WBH2005] G28.952+0.257 18 43 15.29 -03 25 27.12 7.09 WBHGP6CM
MAGPIS Discrete G28.95190+0.25 18 43 15.29 -03 25 27.12 7.09 MAGPIS
14 MAGPIS Discrete G29.08436+0.06 18 44 10.90 -03 23 39.12 7.30 MAGPIS
15 MAGPIS Diffuse G28.9000+0.2417 18 43 13.30 -03 28 33.96 7.90 MAGPIS
16 MAGPIS Discrete G29.11686+0.08 18 44 09.10 -03 21 14.04 8.09 MAGPIS
17 GPA 029.02+0.01 18 44 15.31 -03 28 23.88 8.22 GPA
18 NVSS J184417-032508 18 44 17.30 -03 25 08.04 8.49 NVSS
19 V1340 Aql 18 44 16.01 -03 30 15.48 9.05 GCVS
MAGPIS Diffuse G28.8619+0.0625 18 43 46.30 -03 35 31.92 9.34 MAGPIS
20 NVSS J184346-033542 18 43 46.80 -03 35 43.08 9.53 NVSS
21 MAGPIS Discrete G28.85819+0.24 18 43 07.70 -03 30 48.96 10.04 MAGPIS
22 QORG J184346.6-033624 18 43 46.61 -03 36 24.12 10.21 QORGCAT
23 NVSS J184318-031801 18 43 18.60 -03 18 02.16 10.29 NVSS
24 GPA 028.88+0.28 18 43 03.19 -03 28 44.04 10.38 GPA
25 MAGPIS Discrete G29.01165-0.03 18 44 24.19 -03 30 15.12 10.91 MAGPIS
26 NVSS J184345-033720 18 43 45.60 -03 37 19.92 11.13 NVSS
27 MAGPIS Discrete G29.18051+0.15 18 44 01.30 -03 15 56.16 11.20 MAGPIS
MAGPIS Diffuse G28.8000+0.1764 18 43 16.80 -03 35 25.08 11.37 MAGPIS
[WBH2005] G28.806+0.174 18 43 16.90 -03 35 30.12 11.41 WBHGP20CM
[WBH2005] G28.806+0.175 18 43 16.80 -03 35 30.12 11.44 WBHGP6CM
28 MAGPIS Discrete G29.16901+0.22 18 43 45.89 -03 14 44.88 11.49 MAGPIS
29 NVSS J184416-033418 18 44 16.30 -03 34 18.12 11.49 NVSS
[WBH2005] G28.806+0.180 18 43 15.60 -03 35 21.12 11.50 WBHGP6CM
PGCC G28.94-0.04 18 44 16.61 -03 34 15.96 11.52 PLANCKGCC
TXS 1840-036 18 43 16.90 -03 35 38.04 11.53 TEXAS
[WBH2005] G28.803+0.167 18 43 18.10 -03 35 51.00 11.53 WBHGP6CM
30 NVSS J184316-033545 18 43 16.80 -03 35 44.88 11.63 NVSS
31 PGCC G29.11+0.30 18 43 23.30 -03 15 41.04 11.67 PLANCKGCC
PMN J1843-0335 18 43 16.70 -03 35 54.96 11.78 PMN
32 [WBH2005] G29.100-0.022 18 44 31.10 -03 25 10.92 11.90 WBHGP6CM
33 MAGPIS Discrete G28.89752+0.32 18 42 55.61 -03 26 35.88 11.97 MAGPIS
[WBH2005] G28.796+0.173 18 43 16.20 -03 36 05.04 11.99 WBHGP6CM
34 NVSS J184429-032218 18 44 29.90 -03 22 18.84 12.21 NVSS
35 PPM 707236 18 43 25.03 -03 37 45.48 12.43 PPM
36 MAGPIS Discrete G29.20389+0.15 18 44 05.59 -03 14 53.88 12.58 MAGPIS
[WBH2005] G29.204+0.151 18 44 05.59 -03 14 53.88 12.58 WBHGP6CM
37 NVSS J184300-033408 18 43 00.70 -03 34 08.04 13.30 NVSS
MAGPIS Diffuse G28.7972+0.2444 18 43 00.19 -03 34 33.96 13.67 MAGPIS
38 BK 028.8+00.2 18 43 06.00 -03 36 57.96 14.26 DIXON

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