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 J1806.9-2824

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1806.9-2824 Swift-XRT detections in the field for 4FGL J1806.9-2824


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 06 56.03 -28 30 25.72 8.62 (7 ± 3) x 10-3 6 2.174 2.244

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1806.9-2824 Swift-XRT image with known radio, optical and UV sources for 4FGL J1806.9-2824

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXP J180654.1-282254 18 06 54.05 -28 22 54.12 2.30 ROSAT
1WGA J1806.8-2822 18 06 53.90 -28 22 53.04 2.33 ROSAT
2 2CXO J180612.1-282827 18 06 12.12 -28 28 27.48 10.84 CHANDRA
3 2RXS J180609.2-281629 18 06 09.19 -28 16 29.64 13.80 ROSAT
1RXS J180608.9-281628 18 06 08.90 -28 16 27.84 13.87 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 HD 317083 18 07 04.03 -28 24 59.40 1.16 HDEC
2 PPM 267868 18 06 45.82 -28 21 50.04 4.22 PPM
HD 165365 18 06 45.82 -28 21 50.04 4.22 HIC
CD-2814144 18 06 45.82 -28 21 49.68 4.23 ACRS
HIP 88720 18 06 45.79 -28 21 49.68 4.23 HIPPARCOS
SAO 186286 18 06 45.77 -28 21 48.96 4.24 SAO
MGPS J180653-283048 18 06 53.59 -28 30 47.88 5.96 MGPS2
TGSSADR J180653.7-283059 18 06 53.71 -28 31 00.12 6.15 GMRTAS150M
3 NVSS J180653-283100 18 06 53.50 -28 31 00.12 6.16 NVSS
4 NVSS J180724-282810 18 07 24.10 -28 28 09.84 6.43 NVSS
5 HD 317072 18 06 58.49 -28 16 40.80 8.27 HDEC
6 V5783 Sgr 18 07 26.21 -28 18 58.32 8.49 GCVS
7 V4380 Sgr 18 07 28.70 -28 30 23.76 8.54 GCVS
HIP 88789 18 07 28.70 -28 30 23.76 8.54 HIPPARCOS
HD 317084 18 07 28.70 -28 30 23.76 8.54 HDEC
HD 317084 18 07 28.70 -28 30 24.48 8.55 HIC
8 CD-2814143 18 06 36.05 -28 31 56.64 8.60 ACRS
SAO 186281 18 06 36.12 -28 31 57.36 8.60 SAO
PPM 267866 18 06 36.02 -28 31 56.64 8.60 PPM
9 MGPS J180653-281540 18 06 53.90 -28 15 41.04 9.33 MGPS2
10 V5777 Sgr 18 06 49.01 -28 15 45.72 9.43 GCVS
11 V4142 Sgr 18 07 44.57 -28 24 04.32 10.11 GCVS
HD 317151 18 07 44.57 -28 24 04.32 10.11 HDEC
12 NVSS J180741-282921 18 07 41.30 -28 29 21.12 10.34 NVSS
13 HD 317082 18 06 11.26 -28 26 11.76 10.52 HDEC
14 HD 317073 18 06 15.65 -28 20 20.76 10.54 HDEC
15 V5782 Sgr 18 07 19.87 -28 15 01.08 10.96 GCVS
16 HD 317085 18 07 25.42 -28 34 17.04 11.02 HDEC
17 PPM 267860 18 06 27.89 -28 33 39.96 11.05 PPM
CD-2814139 18 06 27.84 -28 33 39.96 11.06 ACRS
SAO 186278 18 06 27.70 -28 33 41.04 11.09 SAO
18 NVSS J180634-281350 18 06 34.70 -28 13 50.16 12.30 NVSS
19 HD 317143 18 07 42.00 -28 14 46.32 13.93 HDEC
20 V5784 Sgr 18 07 43.87 -28 13 01.56 15.51 GCVS
21 V5785 Sgr 18 07 48.19 -28 13 00.48 16.15 GCVS

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