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 J1641.5-2856

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1641.5-2856 Swift-XRT detections in the field for 3FGL J1641.5-2856


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 16 40 21.96 -29 05 58.25 7.27 (2.0 ± 0.7) x 10-2 10 3.158 2.969

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1641.5-2856 Swift-XRT image with known radio, optical and UV sources for 3FGL J1641.5-2856


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 SPASS J164151-285650 16 41 51.70 -28 56 51.00 3.85 SPASS2P3GH
2 PPM 732817 16 41 39.02 -29 01 33.96 4.81 PPM
3 NVSS J164157-285359 16 41 57.10 -28 53 58.92 5.81 NVSS
4 NVSS J164202-285701 16 42 02.81 -28 57 01.08 6.28 NVSS
TGSSADR J164203.0-285659 16 42 03.10 -28 56 60.00 6.34 GMRTAS150M
5 NVSS J164132-285025 16 41 32.40 -28 50 25.08 6.47 NVSS
6 NVSS J164201-285348 16 42 01.39 -28 53 48.12 6.73 NVSS
SUMSS J164112-290220 16 41 12.00 -29 02 21.12 7.29 SUMSS
TXS 1638-287 16 41 49.20 -28 50 21.84 7.30 TEXAS
GLEAM J164148-285018 16 41 48.79 -28 50 17.88 7.32 GLEAMEGCAT
7 NVSS J164149-285019 16 41 49.10 -28 50 18.96 7.33 NVSS
8 PMN J1641-2850 16 41 51.41 -28 50 34.08 7.36 PMN
TGSSADR J164149.2-285018 16 41 49.20 -28 50 17.88 7.36 GMRTAS150M
9 NVSS J164111-290228 16 41 12.00 -29 02 29.04 7.40 NVSS
TGSSADR J164111.9-290229 16 41 12.00 -29 02 30.12 7.41 GMRTAS150M
GLEAM J164110-290242 16 41 10.20 -29 02 43.08 7.84 GLEAMEGCAT
GLEAM J164204-285245 16 42 04.90 -28 52 45.12 7.91 GLEAMEGCAT
10 NVSS J164204-285236 16 42 04.80 -28 52 36.12 7.97 NVSS
TGSSADR J164205.0-285234 16 42 04.99 -28 52 33.96 8.02 GMRTAS150M
11 NVSS J164053-285607 16 40 54.00 -28 56 07.08 8.81 NVSS
12 NVSS J164103-290238 16 41 03.60 -29 02 39.12 8.81 NVSS
13 SAO 184552 16 42 06.50 -28 50 45.96 9.36 SAO
HD 150436 16 42 06.58 -28 50 46.32 9.37 HIC
CD-2812302 16 42 06.55 -28 50 44.88 9.38 ACRS
PPM 265810 16 42 06.60 -28 50 45.24 9.39 PPM
HIP 81765 16 42 06.60 -28 50 44.88 9.39 HIPPARCOS
14 NVSS J164108-284855 16 41 08.81 -28 48 56.16 9.69 NVSS
15 NVSS J164109-290602 16 41 09.79 -29 06 02.88 10.59 NVSS
TGSSADR J164047.2-285310 16 40 47.30 -28 53 09.96 10.90 GMRTAS150M
SUMSS J164047-285313 16 40 47.11 -28 53 12.84 10.91 SUMSS
16 NVSS J164047-285313 16 40 47.11 -28 53 12.84 10.91 NVSS
GLEAM J164046-285318 16 40 46.80 -28 53 18.96 10.95 GLEAMEGCAT
TXS 1637-286 16 41 05.71 -28 46 41.88 11.92 TEXAS
17 NVSS J164052-284913 16 40 52.01 -28 49 13.08 11.98 NVSS
18 NVSS J164105-284636 16 41 05.40 -28 46 36.12 12.05 NVSS
TGSSADR J164105.3-284635 16 41 05.40 -28 46 36.12 12.06 GMRTAS150M
GLEAM J164105-284635 16 41 05.21 -28 46 35.04 12.08 GLEAMEGCAT
19 SUMSS J164052-284808 16 40 52.70 -28 48 07.92 12.59 SUMSS
20 HIP 81767 16 42 07.27 -29 07 29.28 12.85 HIPPARCOS
SAO 184553 16 42 07.34 -29 07 29.64 12.86 SAO
PPM 265812 16 42 07.32 -29 07 30.00 12.87 PPM
CD-2812301 16 42 07.32 -29 07 30.00 12.87 ACRS
HD 150437 16 42 07.37 -29 07 30.36 12.88 HIC

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