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 J1805.7+3401

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1805.7+3401 Swift-XRT detections in the field for 4FGL J1805.7+3401

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 04 53.68 +34 03 45.89 6.41 (5.0 ± 1.3) x 10-3 18 3.798 3.943

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 05 38.91 +33 58 47.19 6.52 (3.1 ± 1.1) x 10-3 13 2.887 2.857
2 18 05 31.37 +33 57 43.62 6.31 (3.0 ± 1.1) x 10-3 19 2.887 2.737
3 18 05 55.72 +34 08 46.15 6.93 (2.3 ± 0.9) x 10-3 12 2.454 2.545
4 18 05 05.17 +33 57 03.53 6.65 (2.2 ± 1.0) x 10-3 9 2.583 2.305

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1805.7+3401 Swift-XRT image with known radio, optical and UV sources for 4FGL J1805.7+3401


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 J180551+340111 18 05 51.10 +34 01 10.92 1.93 NVSS
MCG+06-40-004 18 05 51.60 +34 01 22.80 1.97 MCG
2 UGC 11118 18 05 48.67 +34 00 21.60 1.99 UGC
18040+3400 18 05 52.70 +34 01 00.84 2.31 ZCAT
UZC J180552.8+340103 18 05 52.80 +34 01 03.00 2.31 UZC
Unknown 18 05 52.80 +34 01 00.84 2.32 RC3
PGC 61402 18 05 52.90 +34 01 01.92 2.34 PGC2003
3 NVSS J180527+340338 18 05 27.91 +34 03 38.16 3.48 NVSS
4 PPM 80920 18 05 50.81 +34 05 18.60 3.87 PPM
BD+34 3118 18 05 50.83 +34 05 18.96 3.87 ACRS
WN 1803.8+3357 18 05 40.99 +33 57 32.04 4.34 WENSS
5 NVSS J180541+335727 18 05 40.99 +33 57 28.08 4.41 NVSS
WN 1803.4+3403 18 05 13.51 +34 03 57.96 6.34 WENSS
6 NVSS J180513+340354 18 05 13.20 +34 03 55.08 6.38 NVSS
TGSSADR J180513.0+340354 18 05 13.10 +34 03 55.08 6.40 GMRTAS150M
7 NVSS J180508+340154 18 05 08.69 +34 01 54.84 6.98 NVSS
8 NVSS J180523+335436 18 05 22.99 +33 54 36.00 8.29 NVSS
TGSSADR J180500.2+340125 18 05 00.29 +34 01 24.96 8.73 GMRTAS150M
9 NVSS J180500+340127 18 05 00.10 +34 01 27.84 8.76 NVSS
WN 1803.1+3401 18 04 59.81 +34 01 27.84 8.83 WENSS
10 BD+34 3113 18 04 58.03 +34 00 25.56 9.30 ACRS
BD +34 3113 18 04 58.01 +34 00 26.28 9.30 HIC
HIP 88559 18 04 57.98 +34 00 26.64 9.30 HIPPARCOS
PPM 80904 18 04 57.98 +34 00 26.28 9.31 PPM
11 NVSS J180603+341234 18 06 03.10 +34 12 33.84 11.54 NVSS
WN 1803.1+3353 18 05 00.79 +33 54 03.96 11.61 WENSS
TGSSADR J180500.4+335354 18 05 00.41 +33 53 54.96 11.78 GMRTAS150M
12 NVSS J180500+335354 18 05 00.41 +33 53 54.96 11.78 NVSS
13 NVSS J180544+334951 18 05 44.90 +33 49 51.96 12.01 NVSS
14 NVSS J180447+340731 18 04 47.40 +34 07 31.08 12.71 NVSS
15 NVSS J180628+335117 18 06 28.99 +33 51 18.00 14.32 NVSS

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