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 J1838.4-0630c

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1838.4-0630c Swift-XRT detections in the field for 4FGL J1838.4-0630c

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 39 20.49 -06 21 56.76 4.76 (2.2 ± 0.5) x 10-3 33 4.980 4.578

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1838.4-0630c Swift-XRT image with known radio, optical and UV sources for 4FGL J1838.4-0630c

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1WGA J1838.3-0634 18 38 23.21 -06 34 42.24 3.72 ROSAT
1 4XMM J183823.5-063511 18 38 23.54 -06 35 11.04 4.20 XMM-NEWTON
4XMMs J183823.7-063512 18 38 23.71 -06 35 12.48 4.22 XMM-NEWTON
2 4XMMs J183800.3-063721 18 38 00.36 -06 37 21.36 8.76 XMM-NEWTON
4XMM J183800.3-063723 18 38 00.34 -06 37 22.08 8.77 XMM-NEWTON
4XMM J183800.3-063723 18 38 00.38 -06 37 24.60 8.80 XMM-NEWTON
3 4XMM J183748.4-063351 18 37 48.41 -06 33 51.48 9.44 XMM-NEWTON
4XMMs J183747.8-063343 18 37 47.88 -06 33 43.20 9.53 XMM-NEWTON
4XMM J183747.7-063342 18 37 47.76 -06 33 42.84 9.55 XMM-NEWTON
4 4XMM J183812.6-064117 18 38 12.65 -06 41 17.16 10.71 XMM-NEWTON
5 4XMMs J183747.1-063627 18 37 47.14 -06 36 27.36 10.79 XMM-NEWTON
6 4XMMs J183821.6-064228 18 38 21.65 -06 42 28.80 11.51 XMM-NEWTON
7 4XMMs J183759.8-064045 18 37 59.88 -06 40 45.12 11.53 XMM-NEWTON
4XMM J183821.6-064232 18 38 21.70 -06 42 32.04 11.56 XMM-NEWTON
8 4XMM J183748.4-063911 18 37 48.48 -06 39 08.28 12.12 XMM-NEWTON
4XMMs J183748.4-063911 18 37 48.48 -06 39 11.16 12.16 XMM-NEWTON
4XMM J183748.4-063911 18 37 48.50 -06 39 12.60 12.16 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183813-063232 18 38 13.30 -06 32 31.92 3.22 NVSS
MAGPIS Diffuse G25.6528-0.0333 18 38 13.70 -06 29 15.00 3.23 MAGPIS
2 NVSS J183810-063038 18 38 10.61 -06 30 38.16 3.50 NVSS
3 PGCC G25.68-0.14 18 38 39.10 -06 30 48.96 3.60 PLANCKGCC
4 NVSS J183812-062901 18 38 12.50 -06 29 02.04 3.60 NVSS
TXS 1835-065 18 38 09.19 -06 32 04.92 3.99 TEXAS
TGSSADR J183809.1-063208 18 38 09.19 -06 32 08.88 4.01 GMRTAS150M
[WBH2005] G25.605-0.038 18 38 09.10 -06 32 04.92 4.01 WBHGP20CM
[WBH2005] G25.605-0.038 18 38 09.10 -06 32 06.00 4.01 WBHGP6CM
5 NVSS J183809-063204 18 38 09.10 -06 32 04.92 4.01 NVSS
MAGPIS Discrete G25.60457-0.03 18 38 09.10 -06 32 06.00 4.02 MAGPIS
6 MAGPIS Diffuse G25.6611-0.0167 18 38 11.30 -06 28 27.84 4.18 MAGPIS
7 NVSS J183842-063047 18 38 42.60 -06 30 47.16 4.47 NVSS
8 BG 1835-06 18 38 12.60 -06 27 19.08 4.74 DIXON
9 [WBH2005] G25.647-0.003 18 38 06.19 -06 28 50.88 5.04 WBHGP6CM
10 MAGPIS Discrete G25.58587-0.02 18 38 04.99 -06 32 51.00 5.21 MAGPIS
11 MAGPIS Discrete G25.72609-0.02 18 38 20.40 -06 25 19.92 5.75 MAGPIS
12 NVSS J183818-063647 18 38 18.10 -06 36 47.16 6.01 NVSS
13 PPM 707171 18 38 07.30 -06 36 15.12 6.79 PPM
14 [WBH2005] G25.707+0.019 18 38 08.21 -06 25 05.88 7.17 WBHGP6CM
[WBH2005] G25.693+0.025 18 38 05.40 -06 25 39.00 7.18 WBHGP6CM
[WBH2005] G25.693+0.027 18 38 04.90 -06 25 36.84 7.27 WBHGP6CM
15 [WBH2005] G25.587+0.017 18 37 55.30 -06 31 32.88 7.31 WBHGP6CM
MAGPIS Discrete G25.58667+0.01 18 37 55.20 -06 31 32.16 7.32 MAGPIS
16 NVSS J183804-062523 18 38 04.70 -06 25 23.88 7.47 NVSS
17 NVSS J183838-063739 18 38 38.59 -06 37 39.00 7.51 NVSS
[WBH2005] G25.699+0.029 18 38 05.21 -06 25 14.16 7.52 WBHGP6CM
18 NVSS J183809-062426 18 38 09.70 -06 24 25.92 7.52 NVSS
[WBH2005] G25.694+0.033 18 38 03.79 -06 25 23.16 7.63 WBHGP6CM
[WBH2005] G25.694+0.034 18 38 03.50 -06 25 18.84 7.73 WBHGP6CM
[WBH2005] G25.691+0.036 18 38 02.81 -06 25 27.84 7.74 WBHGP6CM
19 PMN J1838-0624 18 38 04.49 -06 24 46.08 7.99 PMN
20 MAGPIS Discrete G25.51751-0.06 18 38 05.90 -06 37 33.96 8.05 MAGPIS
21 MAGPIS Discrete G25.72226-0.20 18 38 57.60 -06 30 23.04 8.22 MAGPIS
22 SG 025.7+00.0 18 38 03.19 -06 24 10.08 8.66 DIXON
MAGPIS Diffuse G25.7056+0.0389 18 38 02.90 -06 23 47.04 9.02 MAGPIS
[WBH2005] G25.716+0.049 18 38 02.81 -06 23 47.04 9.02 WBHGP6CM
MAGPIS Discrete G25.71575+0.04 18 38 02.81 -06 23 47.04 9.02 MAGPIS
23 NVSS J183850-063724 18 38 50.21 -06 37 23.88 9.03 NVSS
24 PSR J1838-0624 18 38 51.79 -06 24 54.00 9.09 ATNFPULSAR
25 [WBH2005] G25.542-0.198 18 38 36.60 -06 39 51.12 9.34 WBHGP6CM
26 NVSS J183802-062325 18 38 02.11 -06 23 26.16 9.40 NVSS
27 NVSS J183856-063654 18 38 56.30 -06 36 54.00 9.84 NVSS
28 [WBH2005] G25.801-0.157 18 38 56.40 -06 24 55.08 9.96 WBHGP6CM
MAGPIS Discrete G25.80118-0.15 18 38 56.40 -06 24 52.92 9.97 MAGPIS
29 [WBH2005] G25.746+0.049 18 38 06.10 -06 22 08.04 9.98 WBHGP6CM
30 PCCS2 030 G025.48-00.13 18 38 15.91 -06 41 22.92 10.61 PCCS030GHZ
31 MAGPIS Discrete G25.82784-0.06 18 38 40.10 -06 20 60.00 10.71 MAGPIS
32 MAGPIS Discrete G25.56436+0.06 18 37 41.50 -06 31 15.96 10.72 MAGPIS
33 MAGPIS Diffuse G25.4694-0.1250 18 38 11.30 -06 41 22.92 10.90 MAGPIS
34 LDN 495 18 38 53.45 -06 39 16.56 10.95 LDN
35 NVSS J183813-064137 18 38 13.20 -06 41 38.04 11.01 NVSS
36 MM 32 18 38 26.59 -06 42 18.00 11.32 DIXON
37 [WBH2005] G25.816+0.004 18 38 23.40 -06 19 41.16 11.32 WBHGP6CM
38 MAGPIS Discrete G25.82581-0.17 18 39 03.79 -06 24 11.16 11.89 MAGPIS
39 NVSS J183856-062207 18 38 57.00 -06 22 08.04 11.97 NVSS
40 [WBH2005] G25.698+0.111 18 37 47.50 -06 23 00.96 12.20 WBHGP6CM
[WBH2005] G25.700+0.116 18 37 46.49 -06 22 46.92 12.53 WBHGP6CM
TXS 1835-063 18 38 04.70 -06 19 14.88 12.75 TEXAS
41 [WBH2005] G25.700+0.120 18 37 45.70 -06 22 39.00 12.77 WBHGP6CM
[WBH2005] G25.788+0.076 18 38 04.90 -06 19 09.12 12.82 WBHGP6CM
[WBH2005] G25.788+0.077 18 38 04.90 -06 19 09.12 12.82 WBHGP20CM
MAGPIS Discrete G25.78823+0.07 18 38 04.80 -06 19 09.12 12.82 MAGPIS
MAGPIS Diffuse G25.8700+0.1350 18 38 04.80 -06 19 09.12 12.83 MAGPIS
42 QORG J183736.6-063544 18 37 36.60 -06 35 44.16 12.83 QORGCAT
[WBH2005] G25.704+0.121 18 37 45.91 -06 22 24.96 12.89 WBHGP6CM
43 NVSS J183804-061904 18 38 04.70 -06 19 05.16 12.90 NVSS
44 NVSS J183737-063637 18 37 37.61 -06 36 37.08 12.97 NVSS
MAGPIS Diffuse G25.4750+0.0403 18 37 36.91 -06 36 38.16 13.13 MAGPIS
45 LDN 497 18 39 11.40 -06 37 15.24 13.20 LDN
46 NVSS J183859-061940 18 38 59.81 -06 19 40.08 14.30 NVSS
47 NVSS J183744-061921 18 37 44.11 -06 19 22.08 15.39 NVSS
48 NVSS J183908-064158 18 39 08.30 -06 41 57.84 15.43 NVSS
49 QORG J183737.8-062018 18 37 37.80 -06 20 17.88 15.80 QORGCAT

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