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 J1018.1-4051

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1018.1-4051 Swift-XRT detections in the field for 4FGL J1018.1-4051

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 18 01.57 -40 55 18.33 4.95 (5.6 ± 1.0) x 10-3 44 5.457 5.464
2 10 18 07.56 -40 44 04.62 4.59 (5.2 ± 1.0) x 10-3 46 5.460 5.207
3 10 17 17.31 -40 47 59.89 5.53 (4.4 ± 0.9) x 10-3 28 4.640 5.034
4 10 17 25.00 -40 44 35.42 5.14 (3.8 ± 0.9) x 10-3 27 4.474 4.398
5 10 18 20.93 -40 48 16.97 5.05 (3.3 ± 0.9) x 10-3 34 3.867 3.922

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 10 18 43.08 -40 46 47.05 4.86 (1.9 ± 0.7) x 10-3 25 3.455 2.766
2 10 17 42.73 -40 44 28.08 5.59 (1.4 ± 0.5) x 10-3 17 2.457 2.486
3 10 17 51.62 -40 46 59.66 5.89 (1.4 ± 0.6) x 10-3 14 2.408 2.458
4 10 17 53.35 -40 59 39.11 6.21 (1.3 ± 0.5) x 10-3 11 2.489 2.434

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1018.1-4051 Swift-XRT image with known radio, optical and UV sources for 4FGL J1018.1-4051

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1WGA J1018.0-4055 10 18 01.70 -40 55 08.76 4.13 ROSAT
1 4XMM J101801.1-405511 10 18 01.20 -40 55 11.28 4.21 XMM-NEWTON
1WGA J1017.9-4055 10 17 59.59 -40 55 26.76 4.57 ROSAT
2 1WGA J1018.1-4044 10 18 07.80 -40 44 32.28 6.83 ROSAT
3 2RXS J101728.1-404451 10 17 28.13 -40 44 51.36 10.28 ROSAT
1RXS J101727.9-404451 10 17 27.89 -40 44 51.00 10.32 ROSAT
4 1WGA J1017.2-4048 10 17 17.30 -40 48 01.80 10.56 ROSAT
1WGA J1017.2-4048 10 17 16.51 -40 48 09.00 10.66 ROSAT
5 4XMM J101754.4-410149 10 17 54.48 -41 01 49.80 10.90 XMM-NEWTON
6 1WGA J1017.2-4050 10 17 12.10 -40 50 14.28 11.06 ROSAT
1WGA J1017.2-4050 10 17 12.19 -40 50 01.68 11.06 ROSAT
7 1WGA J1019.0-4056 10 19 05.40 -40 56 41.64 11.71 ROSAT
8 4XMM J101708.1-410215 10 17 08.16 -41 02 15.00 16.01 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 TGSSADR J101810.4-405436 10 18 10.51 -40 54 37.08 3.27 GMRTAS150M
QORG J101809.9-405439 10 18 09.91 -40 54 38.88 3.30 QORGCAT
SUMSS J101810-405439 10 18 10.10 -40 54 39.96 3.31 SUMSS
2 GLEAM J101802-405506 10 18 02.59 -40 55 05.88 4.02 GLEAMEGCAT
QORG J101801.3-405519 10 18 01.30 -40 55 18.84 4.32 QORGCAT
SUMSS J101801-405519 10 18 01.10 -40 55 18.84 4.34 SUMSS
TGSSADR J101801.1-405519 10 18 01.10 -40 55 19.92 4.34 GMRTAS150M
3 QORG J101800.0-405532 10 18 00.00 -40 55 32.16 4.61 QORGCAT
4 PPM 757304 10 18 34.22 -40 49 49.44 4.78 PPM
5 PPM 315215 10 17 52.22 -40 57 19.44 6.88 PPM
CD-40 5913 10 17 52.15 -40 57 20.16 6.90 ACRS
6 SPASS J101722-404753 10 17 22.39 -40 47 53.16 9.70 SPASS2P3GH
7 PPM 315211 10 17 36.31 -40 59 13.20 10.16 PPM
8 PMN J1017-4048 10 17 17.40 -40 48 27.00 10.41 PMN
9 1015-405 10 17 17.11 -40 47 54.96 10.63 MRC
ATPMN J101717.1-404752 10 17 17.11 -40 47 52.08 10.64 ATPMNCAT
GLEAM J101717-404753 10 17 16.99 -40 47 53.88 10.65 GLEAMEGCAT
SUMSS J101716-404756 10 17 16.90 -40 47 56.04 10.65 SUMSS
TGSSADR J101716.8-404754 10 17 16.80 -40 47 53.88 10.68 GMRTAS150M
10 CD-40 5926 10 19 04.08 -40 55 37.20 11.03 ACRS
PPM 757309 10 19 04.13 -40 55 37.20 11.04 PPM
11 PGC 30141 10 19 06.79 -40 40 45.84 15.05 PGC2003
ESO 101658-4025.7 10 19 07.20 -40 40 48.00 15.08 ESOUPPSALA

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