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 J1806.1-3344

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1806.1-3344 Swift-XRT detections in the field for 4FGL J1806.1-3344

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 07 20.17 -33 41 28.42 5.64 (7 ± 2) x 10-3 20 4.072 3.859

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 32.48 -33 47 53.67 6.52 (1.8 ± 1.0) x 10-3 13 2.393 1.763

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1806.1-3344 Swift-XRT image with known radio, optical and UV sources for 4FGL J1806.1-3344


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 J180619-334524 18 06 19.10 -33 45 24.84 2.27 NVSS
2 PGC 205598 18 06 16.20 -33 48 23.04 4.40 PGC2003
3 HD 321234 18 05 50.16 -33 46 08.40 4.54 HDEC
4 NVSS J180550-334733 18 05 51.00 -33 47 34.08 5.18 NVSS
TGSSADR J180550.8-334733 18 05 50.81 -33 47 33.00 5.19 GMRTAS150M
MGPS J180550-334734 18 05 50.81 -33 47 34.08 5.22 MGPS2
5 HD 318979 18 05 57.65 -33 39 29.16 5.35 HDEC
6 NVSS J180637-334227 18 06 37.80 -33 42 27.00 6.05 NVSS
7 HD 318980 18 06 05.98 -33 38 11.04 6.06 HDEC
8 HD 321233 18 05 38.52 -33 45 32.40 6.65 HDEC
9 NVSS J180555-333655 18 05 55.90 -33 36 55.08 7.83 NVSS
10 HD 318981 18 06 18.79 -33 36 00.36 8.39 HDEC
11 HD 321235 18 05 47.26 -33 52 05.52 9.19 HDEC
QORG J180655.3-334535 18 06 55.30 -33 45 34.92 9.55 QORGCAT
12 NVSS J180655-334534 18 06 55.30 -33 45 34.92 9.56 NVSS
13 NVSS J180555-335324 18 05 55.10 -33 53 24.00 9.71 NVSS
14 HD 318978 18 05 57.55 -33 33 34.56 10.92 HDEC
MGPS J180651-335516 18 06 51.41 -33 55 15.96 14.05 MGPS2
TGSSADR J180651.5-335516 18 06 51.50 -33 55 15.96 14.05 GMRTAS150M
TXS 1803-339 18 06 51.50 -33 55 17.04 14.06 TEXAS
15 NVSS J180651-335516 18 06 51.60 -33 55 15.96 14.06 NVSS
16 NVSS J180704-333528 18 07 04.30 -33 35 27.96 14.30 NVSS
MGPS J180704-333524 18 07 04.20 -33 35 24.00 14.32 MGPS2

Penn State University Goddard Space Flight Center Swift