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 J2150.5-1754

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2150.5-1754 Swift-XRT detections in the field for 3FGL J2150.5-1754

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 50 46.46 -17 49 56.06 5.31 (7 ± 2) x 10-3 27 4.541 4.227

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 21 50 37.55 -17 49 43.17 6.78 (3.2 ± 1.2) x 10-3 12 2.624 2.747
2 21 50 18.62 -18 00 14.83 6.41 (2.2 ± 1.0) x 10-3 13 2.283 2.226
3 21 50 02.81 -17 45 37.25 5.89 (2.1 ± 1.0) x 10-3 12 2.817 2.115
4 21 50 46.46 -17 49 56.06 5.31 (2.0 ± 1.0) x 10-3 27 2.273 1.993
5 21 51 13.49 -17 54 27.59 6.41 (1.6 ± 0.9) x 10-3 11 2.318 1.812

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2150.5-1754 Swift-XRT image with known radio, optical and UV sources for 3FGL J2150.5-1754


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 J215046-174954 21 50 46.49 -17 49 54.12 5.65 NVSS
WISH B2148.0-1815 21 50 49.51 -18 01 05.16 7.48 WISH
GLEAM J215050-180120 21 50 50.11 -18 01 21.00 7.79 GLEAMEGCAT
2 NVSS J215049-180126 21 50 49.61 -18 01 26.04 7.81 NVSS
3 NVSS J215109-175417 21 51 09.50 -17 54 16.92 8.57 NVSS
WISH B2148.4-1807 21 51 09.91 -17 53 03.12 8.79 WISH
4 NVSS J215109-175251 21 51 09.79 -17 52 51.96 8.82 NVSS
GLEAM J215110-175256 21 51 10.20 -17 52 55.92 8.89 GLEAMEGCAT
GLEAM J215012-180425 21 50 12.79 -18 04 26.04 10.96 GLEAMEGCAT
5 NVSS J215012-180430 21 50 12.70 -18 04 30.00 11.03 NVSS
TGSSADR J215012.6-180430 21 50 12.70 -18 04 31.08 11.05 GMRTAS150M
WISH B2147.4-1818 21 50 12.60 -18 04 36.84 11.15 WISH
6 NVSS J215119-175642 21 51 19.90 -17 56 43.08 11.22 NVSS
MWACS J2150.0-1745 21 50 02.30 -17 45 47.16 11.56 MWACS
WISH B2147.2-1759 21 50 02.90 -17 45 38.88 11.57 WISH
TGSSADR J215002.8-174538 21 50 02.90 -17 45 38.16 11.58 GMRTAS150M
7 NVSS J215002-174537 21 50 02.90 -17 45 38.16 11.58 NVSS
TXS 2147-179 21 50 02.90 -17 45 37.08 11.59 TEXAS
AT20G J215002-174536 21 50 02.90 -17 45 37.08 11.59 AT20G
CRATES J215003-174516 21 50 02.90 -17 45 37.08 11.60 CRATES
GLEAM J215002-174534 21 50 03.00 -17 45 34.92 11.61 GLEAMEGCAT
SPASS J215003-174515 21 50 03.79 -17 45 15.84 11.74 SPASS2P3GH
PMN J2150-1745 21 50 03.19 -17 45 15.84 11.82 PMN
8 NVSS J215123-175552 21 51 23.21 -17 55 51.96 11.89 NVSS
9 NVSS J214952-180503 21 49 52.70 -18 05 03.84 14.24 NVSS

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