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 J1817.9-1135

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1817.9-1135 Swift-XRT detections in the field for 4FGL J1817.9-1135


No detected excesses found.

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 17 36.01 -11 39 55.74 7.27 (8 ± 4) x 10-3 7 2.390 2.184

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1817.9-1135 Swift-XRT image with known radio, optical and UV sources for 4FGL J1817.9-1135

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J181841.3-113754 18 18 41.35 -11 37 54.12 11.06 XMM-NEWTON
2 4XMM J181831.5-114353 18 18 31.56 -11 43 53.04 11.70 XMM-NEWTON
3 4XMM J181836.6-114242 18 18 36.65 -11 42 42.84 11.91 XMM-NEWTON
4 1RXS J181726.1-112607 18 17 26.11 -11 26 07.44 12.29 ROSAT
5 4XMM J181833.2-114459 18 18 33.29 -11 45 00.00 12.79 XMM-NEWTON
6 4XMM J181837.0-114409 18 18 37.08 -11 44 09.24 12.88 XMM-NEWTON
7 1WGA J1817.5-1147 18 17 33.50 -11 47 29.76 13.04 ROSAT
8 4XMM J181840.0-114328 18 18 40.08 -11 43 28.20 13.04 XMM-NEWTON
9 4XMM J181843.1-114336 18 18 43.10 -11 43 36.48 13.72 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J181800-113335 18 18 00.91 -11 33 34.92 2.40 NVSS
2 PGCC G18.85+2.03 18 18 00.10 -11 32 53.16 3.01 PLANCKGCC
3 BG 1815-11A 18 17 52.90 -11 32 48.12 3.16 DIXON
4 NVSS J181803-113227 18 18 03.19 -11 32 26.88 3.67 NVSS
5 NVSS J181737-113715 18 17 37.70 -11 37 14.88 4.96 NVSS
6 NVSS J181818-113658 18 18 18.70 -11 36 57.96 5.44 NVSS
7 NVSS J181818-113827 18 18 18.19 -11 38 27.96 5.82 NVSS
8 NVSS J181732-113737 18 17 32.11 -11 37 36.84 6.36 NVSS
9 QORG J181730.6-113312 18 17 30.60 -11 33 11.88 6.97 QORGCAT
10 NVSS J181753-114326 18 17 53.21 -11 43 26.04 7.70 NVSS
11 NVSS J181726-113756 18 17 26.81 -11 37 55.92 7.71 NVSS
12 NVSS J181730-113128 18 17 30.10 -11 31 27.84 7.89 NVSS
13 AMWW 41 18 17 59.59 -11 43 46.92 8.02 DIXON
S 54 18 17 53.04 -11 43 48.00 8.06 HIIREGION
14 SG 018.7+02.0 18 17 54.10 -11 43 54.12 8.13 DIXON
15 NVSS J181745-112753 18 17 45.00 -11 27 54.00 8.43 NVSS
16 GS 018.7+02.0 18 17 52.61 -11 44 17.88 8.57 DIXON
PMN J1817-1144 18 17 53.59 -11 44 25.08 8.66 PMN
17 NVSS J181746-114416 18 17 46.80 -11 44 17.16 8.84 NVSS
18 NVSS J181753-114446 18 17 54.00 -11 44 45.96 9.01 NVSS
19 NVSS J181822-114224 18 18 22.39 -11 42 24.84 9.08 NVSS
20 GD 018.7+02.0 18 17 52.70 -11 45 18.00 9.56 DIXON
21 NVSS J181747-112628 18 17 47.11 -11 26 29.04 9.63 NVSS
22 NVSS J181819-112651 18 18 19.20 -11 26 51.00 10.46 NVSS
23 NVSS J181745-112536 18 17 45.91 -11 25 36.12 10.56 NVSS
24 NVSS J181826-114335 18 18 27.00 -11 43 36.12 10.71 NVSS
25 NVSS J181716-113145 18 17 16.51 -11 31 45.12 10.72 NVSS
26 PPM 719035 18 17 17.59 -11 30 02.88 11.24 PPM
27 NVSS J181746-112441 18 17 46.80 -11 24 42.12 11.38 NVSS
28 ADG018.7+01.8 18 18 27.70 -11 44 33.00 11.53 DIXON
29 GS 018.8+01.8 18 18 41.59 -11 40 44.04 11.98 DIXON
30 NVSS J181805-114741 18 18 05.81 -11 47 40.92 12.08 NVSS
31 PCCS2 070 G018.84+01.82 18 18 44.30 -11 39 32.04 12.16 PCCS070GHZ
32 NVSS J181709-113916 18 17 09.31 -11 39 15.84 12.19 NVSS
33 GD 018.8+01.8 18 18 40.61 -11 42 07.92 12.41 DIXON
34 NVSS J181720-112701 18 17 20.11 -11 27 01.08 12.59 NVSS
35 NVSS J181718-114526 18 17 18.19 -11 45 25.92 13.54 NVSS
36 QORG J181717.2-112600 18 17 17.21 -11 25 59.88 13.83 QORGCAT
37 NVSS J181828-112409 18 18 28.10 -11 24 10.08 13.91 NVSS
38 PMN J1817-1127 18 17 09.10 -11 27 30.96 14.37 PMN
39 NVSS J181713-114621 18 17 13.99 -11 46 22.08 14.92 NVSS
40 NVSS J181711-112536 18 17 11.30 -11 25 36.84 15.14 NVSS

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