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 J2046.9-5409

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2046.9-5409 Swift-XRT detections in the field for 4FGL J2046.9-5409

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 47 00.90 -54 12 43.56 4.09 (1.06 ± 0.11) x 10-2 122 9.389 9.392
2 20 47 22.33 -54 09 01.76 4.71 (4.0 ± 0.7) x 10-3 52 5.882 5.652
3 20 46 43.30 -54 06 08.15 5.31 (2.2 ± 0.6) x 10-3 30 3.970 3.905
4 20 45 55.12 -54 03 57.12 5.40 (2.5 ± 0.7) x 10-3 20 4.017 3.825
5 20 47 17.32 -54 11 31.17 5.24 (1.9 ± 0.5) x 10-3 27 3.367 3.433

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 20 47 52.90 -54 06 34.33 5.00 (1.3 ± 0.5) x 10-3 20 3.104 2.902
2 20 47 48.39 -54 05 48.64 4.97 (1.2 ± 0.4) x 10-3 19 2.800 2.672
3 20 46 29.43 -54 03 39.27 5.11 (1.5 ± 0.6) x 10-3 18 3.187 2.608
4 20 46 23.37 -54 03 33.57 5.28 (1.1 ± 0.4) x 10-3 15 2.940 2.520
5 20 46 17.50 -54 05 16.40 5.82 (9 ± 4) x 10-4 16 2.435 2.474
6 20 46 16.08 -54 16 00.74 5.28 (9 ± 4) x 10-4 20 2.633 2.373
7 20 46 41.61 -54 17 22.68 5.31 (7 ± 3) x 10-4 23 2.478 2.100

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2046.9-5409 Swift-XRT image with known radio, optical and UV sources for 4FGL J2046.9-5409

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J204751.1-540634 20 47 51.10 -54 06 34.56 8.99 ROSAT
2RXS J204751.1-540634 20 47 51.14 -54 06 34.20 8.99 ROSAT
2RXS J204751.1-540634 20 47 51.14 -54 06 34.20 8.99 ROSAT
2 2RXS J204534.2-541404 20 45 34.27 -54 14 04.20 12.40 ROSAT
2RXS J204534.2-541404 20 45 34.27 -54 14 04.20 12.40 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 422020 20 46 52.51 -54 10 55.92 0.99 PGC2003
2 PMN J2047-5412 20 47 01.80 -54 12 02.88 2.34 PMN
3 GLEAM J204700-541246 20 47 01.01 -54 12 46.08 2.95 GLEAMEGCAT
SUMSS J204701-541246 20 47 01.01 -54 12 47.16 2.96 SUMSS
4 SUMSS J204632-541339 20 46 32.69 -54 13 40.08 4.85 SUMSS
5 PGC 422914 20 47 25.70 -54 05 48.84 6.20 PGC2003
6 PGC 421352 20 47 24.60 -54 14 53.88 6.61 PGC2003
7 SUMSS J204730-541521 20 47 30.31 -54 15 20.88 7.52 SUMSS
QORG J204730.5-541520 20 47 30.50 -54 15 20.16 7.52 QORGCAT
8 QORG J204750.9-540637 20 47 50.90 -54 06 37.08 8.94 QORGCAT
QORG J204747.6-540531 20 47 47.59 -54 05 30.84 8.99 QORGCAT
9 SUMSS J204748-540530 20 47 48.00 -54 05 30.12 9.05 SUMSS
10 SUMSS J204553-541141 20 45 53.11 -54 11 40.92 9.13 SUMSS
QORG J204552.7-541137 20 45 52.70 -54 11 36.96 9.17 QORGCAT
11 SUMSS J204756-540820 20 47 56.30 -54 08 21.12 9.21 SUMSS
GLEAM J204756-540810 20 47 56.30 -54 08 11.04 9.26 GLEAMEGCAT
12 PGC 128902 20 46 26.11 -54 00 47.88 10.07 PGC2003
13 PPM 348849 20 48 02.54 -54 07 35.76 10.27 PPM
14 SUMSS J204610-540139 20 46 10.80 -54 01 39.00 10.49 SUMSS
15 PPM 774563 20 46 47.18 -54 21 05.04 11.15 PPM
16 PGC 424115 20 46 38.11 -53 58 54.12 11.34 PGC2003
17 PGC 422847 20 45 37.90 -54 06 11.16 11.82 PGC2003
18 SUMSS J204555-541925 20 45 55.01 -54 19 24.96 12.81 SUMSS
19 PGC 420349 20 45 56.59 -54 20 42.00 13.64 PGC2003
20 PPM 774556 20 45 44.45 -53 59 49.56 14.43 PPM

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