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.

3FGL J1804.5-0850

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1804.5-0850 Swift-XRT detections in the field for 3FGL J1804.5-0850

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 04 25.02 -08 50 02.57 4.52 (1.2 ± 0.2) x 10-2 67 7.457 7.399
2 18 05 03.43 -08 58 20.20 5.76 (4.1 ± 1.0) x 10-3 21 4.244 4.106
3 18 04 18.58 -08 40 06.65 5.89 (3.2 ± 0.9) x 10-3 19 3.747 3.561

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 04 58.96 -08 44 23.13 5.96 (2.3 ± 0.8) x 10-3 17 2.978 2.917
2 18 04 24.74 -08 41 31.18 5.82 (2.0 ± 0.8) x 10-3 15 2.379 2.581
3 18 04 53.07 -08 54 07.92 6.93 (1.4 ± 0.6) x 10-3 10 2.532 2.243
4 18 04 26.40 -08 58 26.85 6.93 (1.2 ± 0.5) x 10-3 10 2.296 2.120

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1804.5-0850 Swift-XRT image with known radio, optical and UV sources for 3FGL J1804.5-0850


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J180435-085137 18 04 35.50 -08 51 37.08 1.50 NVSS
2 NVSS J180433-084606 18 04 33.19 -08 46 05.88 4.45 NVSS
3 NVSS J180437-084622 18 04 37.80 -08 46 23.16 4.45 NVSS
4 NVSS J180443-085405 18 04 43.61 -08 54 05.04 4.69 NVSS
5 NVSS J180444-084215 18 04 44.30 -08 42 15.84 8.87 NVSS
[SPT2015] ATCA J1805-0845 18 05 10.10 -08 45 54.00 10.66 FER2FUSRID
[PME2013] J1805-0845 18 05 10.10 -08 45 54.00 10.66 AT2FGLUS
6 NVSS J180511-084554 18 05 11.11 -08 45 55.08 10.86 NVSS
7 NVSS J180504-085747 18 05 04.90 -08 57 47.16 11.03 NVSS
8 NVSS J180503-085821 18 05 03.50 -08 58 22.08 11.16 NVSS
PMN J1805-0858 18 05 03.60 -08 58 19.92 11.16 PMN
TGSSADR J180504.7-085802 18 05 04.70 -08 58 03.00 11.16 GMRTAS150M
TGSSADR J180502.5-085835 18 05 02.50 -08 58 36.12 11.16 GMRTAS150M
9 NVSS J180426-090230 18 04 26.30 -09 02 30.84 12.05 NVSS
10 NVSS J180400-090125 18 04 00.50 -09 01 26.04 13.30 NVSS

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