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 J1018.1-2705

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1018.1-2705 Swift-XRT detections in the field for 4FGL J1018.1-2705

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 17 50.42 -27 05 49.06 3.71 (3.8 ± 0.3) x 10-2 333 18.180 15.330
2 10 18 26.84 -27 09 43.57 5.31 (2.1 ± 0.6) x 10-3 25 3.526 3.537
3 10 18 40.35 -27 10 28.91 5.59 (2.1 ± 0.6) x 10-3 23 3.658 3.466
4 10 18 01.39 -27 12 23.72 5.53 (2.0 ± 0.6) x 10-3 20 3.459 3.269
5 10 17 59.93 -27 10 19.98 5.31 (1.9 ± 0.6) x 10-3 27 3.282 3.226
6 10 19 02.41 -27 00 09.32 5.76 (2.5 ± 0.8) x 10-3 16 3.246 3.225

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 21.67 -27 00 48.78 5.53 (1.7 ± 0.6) x 10-3 26 3.042 2.910
2 10 18 09.30 -27 00 04.06 5.44 (1.6 ± 0.6) x 10-3 22 2.970 2.784
3 10 19 01.32 -27 01 26.51 6.12 (1.1 ± 0.5) x 10-3 11 2.562 2.394
4 10 17 50.41 -27 05 48.88 3.71 (2.5 ± 1.2) x 10-3 337 4.385 2.133
5 10 17 50.40 -27 05 49.57 3.71 (1.2 ± 0.6) x 10-3 324 2.440 1.933
6 10 17 50.42 -27 05 49.06 3.71 (1.1 ± 1.0) x 10-3 333 4.502 1.086
7 10 17 50.42 -27 05 49.06 3.71 N/A 333 3.702 N/A
8 10 17 50.40 -27 05 49.57 3.71 N/A 325 2.561 N/A
9 10 17 50.40 -27 05 49.57 3.71 N/A 327 3.399 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1018.1-2705 Swift-XRT image with known radio, optical and UV sources for 4FGL J1018.1-2705

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J101751.2-270536 10 17 51.22 -27 05 36.96 4.57 ROSAT
2RXS J101751.2-270536 10 17 51.22 -27 05 36.96 4.57 ROSAT
1RXS J101751.0-270539 10 17 51.00 -27 05 39.48 4.62 ROSAT
2 1RXS J101848.1-270030 10 18 48.10 -27 00 29.88 9.61 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 730071 10 18 13.20 -27 08 24.36 2.76 PPM
2 NVSS J101759-270830 10 17 59.71 -27 08 30.12 3.90 NVSS
TGSSADR J101750.4-270547 10 17 50.50 -27 05 47.04 4.73 GMRTAS150M
3 NVSS J101759-270146 10 17 59.59 -27 01 45.84 4.74 NVSS
GLEAM J101759-270146 10 17 59.50 -27 01 46.92 4.75 GLEAMEGCAT
QORG J101750.4-270553 10 17 50.40 -27 05 53.16 4.75 QORGCAT
TGSSADR J101759.6-270143 10 17 59.71 -27 01 42.96 4.78 GMRTAS150M
4 NVSS J101750-270551 10 17 50.21 -27 05 51.00 4.81 NVSS
GLEAM J101749-270545 10 17 49.80 -27 05 45.96 4.89 GLEAMEGCAT
5 PGC 760573 10 17 54.00 -27 02 31.92 5.04 PGC2003
6 PGC 761044 10 18 07.99 -27 00 21.96 5.37 PGC2003
7 NVSS J101822-270043 10 18 22.39 -27 00 42.84 5.49 NVSS
TGSSADR J101822.5-270041 10 18 22.51 -27 00 41.04 5.53 GMRTAS150M
GLEAM J101822-270034 10 18 22.70 -27 00 33.84 5.65 GLEAMEGCAT
8 PGC 761087 10 18 05.90 -27 00 10.08 5.66 PGC2003
9 NVSS J101746-270513 10 17 46.10 -27 05 12.84 5.72 NVSS
QORG J101745.9-270510 10 17 45.91 -27 05 09.96 5.77 QORGCAT
10 PPM 257472 10 18 10.10 -27 11 31.56 5.87 PPM
CD-26 7816 10 18 10.08 -27 11 31.56 5.87 ACRS
HIP 50458 10 18 10.20 -27 11 31.56 5.87 HIPPARCOS
HD 89370 10 18 10.08 -27 11 31.92 5.88 HIC
-26:7816 10 18 10.87 -27 11 32.64 5.88 NLTT
SAO 178646 10 18 09.91 -27 11 32.64 5.89 SAO
11 SPASS J101748-270220 10 17 48.79 -27 02 20.04 6.09 SPASS2P3GH
12 WDS J10182-2712 10 18 12.00 -27 11 60.00 6.33 WDS
13 TGSSADR J101745.2-270216 10 17 45.31 -27 02 17.16 6.80 GMRTAS150M
14 NVSS J101842-270739 10 18 42.41 -27 07 40.08 7.12 NVSS
15 PGC 760882 10 18 37.10 -27 01 06.96 7.25 PGC2003
16 NVSS J101742-270200 10 17 42.79 -27 02 00.96 7.40 NVSS
GLEAM J101742-270158 10 17 42.70 -27 01 59.16 7.44 GLEAMEGCAT
TGSSADR J101741.8-270149 10 17 41.81 -27 01 49.08 7.69 GMRTAS150M
17 NVSS J101800-271258 10 18 00.10 -27 12 57.96 7.75 NVSS
18 NVSS J101735-270432 10 17 35.81 -27 04 32.16 8.08 NVSS
19 PPM 257457 10 17 40.49 -27 00 41.04 8.56 PPM
20 PGC 757884 10 18 02.50 -27 14 17.88 8.87 PGC2003
21 NVSS J101747-265836 10 17 47.21 -26 58 36.84 8.93 NVSS
TGSSADR J101747.2-265833 10 17 47.21 -26 58 33.96 8.96 GMRTAS150M
GLEAM J101747-265828 10 17 47.71 -26 58 28.92 8.96 GLEAMEGCAT
22 QORG J101848.4-270028 10 18 48.41 -27 00 28.08 9.68 QORGCAT
23 NVSS J101724-270621 10 17 24.19 -27 06 20.88 10.60 NVSS
24 PGC 762062 10 17 51.79 -26 55 48.00 10.82 PGC2003
TGSSADR J101719.0-270208 10 17 19.01 -27 02 08.16 12.26 GMRTAS150M
GLEAM J101718-270213 10 17 18.91 -27 02 12.84 12.26 GLEAMEGCAT
25 NVSS J101718-270210 10 17 18.79 -27 02 11.04 12.28 NVSS
TGSSADR J101852.4-265703 10 18 52.51 -26 57 03.96 12.51 GMRTAS150M
26 PGC 757639 10 17 35.71 -27 15 20.16 12.55 PGC2003
27 NVSS J101852-265656 10 18 52.80 -26 56 57.12 12.63 NVSS
GLEAM J101852-265650 10 18 52.80 -26 56 49.92 12.71 GLEAMEGCAT
28 TGSSADR J101853.5-265610 10 18 53.50 -26 56 09.96 13.30 GMRTAS150M

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