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 J1805.9+3407

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1805.9+3407 Swift-XRT detections in the field for 3FGL J1805.9+3407

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 04 53.48 +34 03 49.77 6.41 (5.1 ± 1.3) x 10-3 18 3.700 3.975

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 38.73 +33 58 51.42 6.52 (3.1 ± 1.1) x 10-3 11 2.955 2.939
2 18 05 31.26 +33 57 43.83 6.21 (2.8 ± 1.0) x 10-3 14 2.754 2.711
3 18 05 04.80 +33 57 08.61 6.93 (2.4 ± 0.9) x 10-3 9 2.480 2.526
4 18 05 55.32 +34 08 57.32 6.93 (2.2 ± 0.9) x 10-3 13 2.425 2.438
5 18 05 20.77 +33 57 40.24 6.31 (1.8 ± 0.9) x 10-3 10 2.264 2.075

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1805.9+3407 Swift-XRT image with known radio, optical and UV sources for 3FGL J1805.9+3407

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J180640.5+335639 18 06 40.61 +33 56 39.12 14.38 ROSAT
2RXS J180640.5+335639 18 06 40.61 +33 56 39.12 14.38 ROSAT
1RXS J180640.7+335637 18 06 40.70 +33 56 37.32 14.41 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 BD+34 3118 18 05 50.83 +34 05 18.96 2.33 ACRS
PPM 80920 18 05 50.81 +34 05 18.60 2.33 PPM
2 NVSS J180603+341234 18 06 03.10 +34 12 33.84 5.36 NVSS
MCG+06-40-004 18 05 51.60 +34 01 22.80 6.14 MCG
3 NVSS J180551+340111 18 05 51.10 +34 01 10.92 6.35 NVSS
UZC J180552.8+340103 18 05 52.80 +34 01 03.00 6.45 UZC
PGC 61402 18 05 52.90 +34 01 01.92 6.46 PGC2003
Unknown 18 05 52.80 +34 01 00.84 6.48 RC3
18040+3400 18 05 52.70 +34 01 00.84 6.49 ZCAT
4 NVSS J180527+340338 18 05 27.91 +34 03 38.16 6.78 NVSS
5 UGC 11118 18 05 48.67 +34 00 21.60 7.24 UGC
WN 1803.4+3403 18 05 13.51 +34 03 57.96 9.28 WENSS
6 NVSS J180513+340354 18 05 13.20 +34 03 55.08 9.35 NVSS
TGSSADR J180513.0+340354 18 05 13.10 +34 03 55.08 9.37 GMRTAS150M
WN 1803.8+3357 18 05 40.99 +33 57 32.04 10.36 WENSS
7 NVSS J180541+335727 18 05 40.99 +33 57 28.08 10.43 NVSS
8 NVSS J180508+340154 18 05 08.69 +34 01 54.84 11.09 NVSS
TGSSADR J180500.2+340125 18 05 00.29 +34 01 24.96 12.84 GMRTAS150M
9 NVSS J180500+340127 18 05 00.10 +34 01 27.84 12.85 NVSS
WN 1803.1+3401 18 04 59.81 +34 01 27.84 12.91 WENSS
10 HIP 88559 18 04 57.98 +34 00 26.64 13.73 HIPPARCOS
BD+34 3113 18 04 58.03 +34 00 25.56 13.73 ACRS
BD +34 3113 18 04 58.01 +34 00 26.28 13.73 HIC
PPM 80904 18 04 57.98 +34 00 26.28 13.74 PPM
11 B2 1805+33A 18 06 51.70 +33 56 31.92 16.07 DIXON
GB6 J1806+3355 18 06 52.01 +33 55 58.08 16.50 GB6
TGSSADR J180652.3+335553 18 06 52.39 +33 55 54.12 16.61 GMRTAS150M
12 NVSS J180652+335549 18 06 52.30 +33 55 50.16 16.65 NVSS
VLSSr J180650.8+335530 18 06 50.90 +33 55 31.08 16.67 VLSSR
7C 180503.4+335521 18 06 52.30 +33 55 46.92 16.67 UC7C151MHZ
WN 1805.0+3355 18 06 52.39 +33 55 45.84 16.70 WENSS

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