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 J0156.5-2423

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0156.5-2423 Swift-XRT detections in the field for 3FGL J0156.5-2423

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 01 56 24.44 -24 20 03.42 3.81 (3.4 ± 0.2) x 10-2 272 15.130 15.760
2 01 55 53.67 -24 07 48.89 5.14 (3.6 ± 0.7) x 10-3 32 5.295 4.956
3 01 56 29.87 -24 12 52.30 4.97 (3.5 ± 0.8) x 10-3 29 4.405 4.198
4 01 57 01.11 -24 28 32.19 6.31 (2.1 ± 0.6) x 10-3 19 3.620 3.724
5 01 56 46.08 -24 13 27.12 5.49 (2.4 ± 0.7) x 10-3 22 3.996 3.677
6 01 57 04.37 -24 21 03.23 5.28 (2.1 ± 0.6) x 10-3 31 3.574 3.426

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 01 56 06.26 -24 17 51.58 5.70 (1.6 ± 0.6) x 10-3 20 2.959 2.973
2 01 56 02.95 -24 16 31.92 5.64 (1.7 ± 0.6) x 10-3 17 2.787 2.725
3 01 56 24.63 -24 31 13.85 6.21 (1.2 ± 0.4) x 10-3 15 2.589 2.611
4 01 56 29.76 -24 24 57.16 5.96 (1.8 ± 0.7) x 10-3 20 2.730 2.602
5 01 56 29.86 -24 21 34.27 5.70 (1.2 ± 0.5) x 10-3 15 2.706 2.235
6 01 57 04.37 -24 21 03.23 5.28 (1.2 ± 0.5) x 10-3 31 2.375 2.208

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0156.5-2423 Swift-XRT image with known radio, optical and UV sources for 3FGL J0156.5-2423


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 J015636-242354 01 56 36.79 -24 23 53.88 1.43 NVSS
2 GLEAM J015639-242403 01 56 39.31 -24 24 03.96 2.01 GLEAMEGCAT
WISH B0154.3-2438 01 56 39.19 -24 24 07.92 2.02 WISH
TGSSADR J015641.3-242420 01 56 41.40 -24 24 20.16 2.55 GMRTAS150M
3 NVSS J015642-242416 01 56 42.60 -24 24 16.92 2.81 NVSS
4 NVSS J015659-242226 01 56 58.99 -24 22 26.04 6.54 NVSS
TGSSADR J015659.0-242222 01 56 58.99 -24 22 22.08 6.55 GMRTAS150M
GLEAM J015659-242215 01 56 59.11 -24 22 15.96 6.59 GLEAMEGCAT
5 WISH B0154.6-2436 01 56 59.11 -24 21 50.04 6.68 WISH
6 NVSS J015556-241951 01 55 56.50 -24 19 51.96 8.62 NVSS
GLEAM J015554-242807 01 55 54.41 -24 28 08.04 9.44 GLEAMEGCAT
TGSSADR J015553.8-242812 01 55 53.90 -24 28 13.08 9.60 GMRTAS150M
7 NVSS J015553-242813 01 55 53.71 -24 28 13.08 9.63 NVSS
TGSSADR J015608.7-241437 01 56 08.71 -24 14 38.04 10.23 GMRTAS150M
8 NVSS J015608-241436 01 56 08.71 -24 14 35.88 10.25 NVSS
9 PCCS2 143 G205.33-75.06 01 56 31.20 -24 13 15.96 10.29 PCCS143GHZ
WISH B0153.7-2428B 01 56 08.71 -24 14 26.88 10.39 WISH
WISH B0154.1-2427 01 56 29.71 -24 12 55.08 10.63 WISH
10 NVSS J015629-241252 01 56 29.71 -24 12 52.92 10.67 NVSS
CRATES J015630-241250 01 56 29.71 -24 12 52.92 10.68 CRATES
AT20G J015629-241252 01 56 29.71 -24 12 51.84 10.68 AT20G
TGSSADR J015629.7-241252 01 56 29.71 -24 12 51.84 10.68 GMRTAS150M
CRATES J015630-241250 01 56 29.71 -24 12 51.84 10.68 CRATES
MWACS J0156.4-2412 01 56 29.90 -24 12 51.84 10.69 MWACS
TXS 0154-244 01 56 30.00 -24 12 51.84 10.69 TEXAS
PMN J0156-2412 01 56 30.00 -24 12 50.04 10.72 PMN
GLEAM J015629-241249 01 56 29.50 -24 12 50.04 10.72 GLEAMEGCAT
PCCS2 217 G205.30-75.06 01 56 30.60 -24 12 47.88 10.75 PCCS217GHZ
11 SPASS J015626-241239 01 56 26.40 -24 12 39.96 10.93 SPASS2P3GH
12 GLEAM J015606-241356 01 56 06.00 -24 13 57.00 11.13 GLEAMEGCAT
WISH B0153.7-2428 01 56 06.50 -24 13 53.04 11.14 WISH
WISH B0153.7-2428A 01 56 04.39 -24 13 14.88 11.92 WISH
TGSSADR J015604.0-241317 01 56 04.10 -24 13 18.12 11.92 GMRTAS150M
13 NVSS J015604-241316 01 56 04.20 -24 13 15.96 11.93 NVSS
14 NVSS J015645-241208 01 56 45.91 -24 12 07.92 11.93 NVSS
GLEAM J015646-241206 01 56 46.01 -24 12 06.84 11.96 GLEAMEGCAT
TGSSADR J015645.8-241205 01 56 45.91 -24 12 06.12 11.96 GMRTAS150M
WISH B0154.4-2426 01 56 46.01 -24 12 02.16 12.03 WISH
15 NVSS J015602-241221 01 56 02.30 -24 12 20.88 12.93 NVSS
16 NVSS J015538-241214 01 55 38.30 -24 12 14.04 16.44 NVSS
WISH B0153.3-2426 01 55 38.81 -24 11 47.04 16.68 WISH

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