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 J2127.5-6001

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2127.5-6001 Swift-XRT detections in the field for 3FGL J2127.5-6001

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 27 29.20 -60 01 01.21 4.07 (5.7 ± 0.5) x 10-2 132 10.580 10.530

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 27 49.55 -60 04 13.87 6.65 (4.1 ± 1.4) x 10-3 13 2.718 2.864
2 21 27 33.46 -60 10 07.85 7.97 (3.4 ± 1.3) x 10-3 9 2.405 2.700
3 21 27 48.96 -60 13 17.43 7.97 (2.4 ± 1.1) x 10-3 7 2.307 2.224
4 21 28 48.42 -59 58 32.97 6.31 (2.1 ± 1.2) x 10-3 10 2.325 1.806

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2127.5-6001 Swift-XRT image with known radio, optical and UV sources for 3FGL J2127.5-6001

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J212728.9-600049 21 27 28.90 -60 00 49.68 1.25 ROSAT
1RXS J212728.9-600049 21 27 28.90 -60 00 49.32 1.25 ROSAT
1RXS J212728.9-600049 21 27 28.90 -60 00 48.96 1.25 ROSAT
2RXS J212729.2-600041 21 27 29.26 -60 00 41.76 1.34 ROSAT
2RXS J212729.2-600041 21 27 29.26 -60 00 41.76 1.34 ROSAT
2 1RXS J212752.9-601313 21 27 52.90 -60 13 13.08 11.57 ROSAT
2RXS J212752.9-601313 21 27 52.92 -60 13 13.08 11.58 ROSAT
2RXS J212752.9-601313 21 27 52.92 -60 13 13.08 11.58 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SPT-S J212728-6001.2 21 27 28.80 -60 01 15.96 0.92 SPTSZSPSC
2 GLEAM J212724-600052 21 27 24.10 -60 00 51.84 1.62 GLEAMEGCAT
SUMSS J212721-600052 21 27 21.60 -60 00 52.92 1.87 SUMSS
SPT-S J212720-6000.8 21 27 20.90 -60 00 47.16 2.00 SPTSZSPSC
3 PCCS2 857 G334.70-42.42 21 27 16.39 -60 00 38.16 2.55 PCCS857GHZ
PCCS2 545 G334.70-42.42 21 27 15.79 -60 00 36.00 2.64 PCCS545GHZ
PCCS2 353 G334.70-42.42 21 27 15.41 -60 00 34.92 2.69 PCCS353GHZ
4 SUMSS J212726-595705 21 27 26.50 -59 57 05.04 4.89 SUMSS
5 SUMSS J212646-600421 21 26 46.80 -60 04 21.00 6.41 SUMSS
6 SUMSS J212827-595743 21 28 27.79 -59 57 42.84 7.88 SUMSS
7 GLEAM J212733-601001 21 27 33.10 -60 10 01.92 8.15 GLEAMEGCAT
SUMSS J212733-601007 21 27 33.41 -60 10 08.04 8.25 SUMSS
8 PMN J2128-5959 21 28 43.99 -59 59 04.92 9.15 PMN
GLEAM J212847-595850 21 28 47.40 -59 58 50.16 9.64 GLEAMEGCAT
9 SUMSS J212848-595853 21 28 48.50 -59 58 54.12 9.74 SUMSS
10 GLEAM J212841-601318 21 28 41.50 -60 13 18.84 14.17 GLEAMEGCAT

Penn State University Goddard Space Flight Center Swift