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 J0854.8-4503

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0854.8-4503 Swift-XRT detections in the field for 3FGL J0854.8-4503

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 54 50.81 -45 11 35.77 3.79 (2.3 ± 0.7) x 10-3 120 3.604 3.090

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 08 54 39.26 -44 58 11.70 3.80 (2.1 ± 0.7) x 10-3 140 3.176 2.889
2 08 55 31.85 -45 08 30.57 3.73 (2.3 ± 0.8) x 10-3 146 3.649 2.801
3 08 55 20.29 -45 09 58.04 3.76 (2.0 ± 0.7) x 10-3 147 3.952 2.792
4 08 55 29.37 -45 05 44.22 3.73 (2.4 ± 0.9) x 10-3 148 2.981 2.737
5 08 55 23.62 -45 01 22.51 3.78 (2.0 ± 0.8) x 10-3 143 3.184 2.568
6 08 54 41.36 -44 59 43.36 3.77 (1.8 ± 0.7) x 10-3 159 3.912 2.564
7 08 55 31.76 -45 09 43.79 3.74 (2.0 ± 0.8) x 10-3 133 3.822 2.509
8 08 55 17.52 -44 59 06.48 3.81 (1.6 ± 0.7) x 10-3 114 3.213 2.453
9 08 55 47.21 -45 09 55.70 3.88 (1.4 ± 0.6) x 10-3 68 3.158 2.423
10 08 54 31.58 -45 00 41.30 3.79 (1.5 ± 0.7) x 10-3 141 2.968 2.287
11 08 55 35.11 -45 04 54.30 3.74 (1.8 ± 0.8) x 10-3 123 2.976 2.270
12 08 55 12.81 -45 00 32.54 3.78 (1.7 ± 0.8) x 10-3 162 3.003 2.215
13 08 55 20.02 -45 02 48.42 3.76 (1.5 ± 0.8) x 10-3 155 3.131 1.982
14 08 55 21.32 -45 06 32.86 3.73 (1.5 ± 0.8) x 10-3 161 3.227 1.930
15 08 55 09.18 -45 01 43.99 3.74 (1.3 ± 0.8) x 10-3 186 3.317 1.776
16 08 55 03.06 -45 10 57.48 3.77 (1.2 ± 0.7) x 10-3 132 3.197 1.685
17 08 55 31.86 -45 08 29.12 3.73 (1.2 ± 0.7) x 10-3 141 3.052 1.654
18 08 55 08.15 -44 58 29.49 3.77 (1.0 ± 0.7) x 10-3 134 3.243 1.529

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0854.8-4503 Swift-XRT image with known radio, optical and UV sources for 3FGL J0854.8-4503

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J085457.8-450729 08 54 57.86 -45 07 28.56 3.99 XMM-NEWTON
2 null 08 55 18.91 -45 02 19.32 5.19 EXOSAT
3 null 08 55 16.66 -44 58 08.04 7.22 EXOSAT
4 ... 08 55 43.44 -45 04 02.28 9.34 EINSTEIN
5 XMMSL2 J085538.2-450842 08 55 38.23 -45 08 42.36 9.79 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [PME2013] J0854-4501 08 54 43.01 -45 01 59.16 2.18 AT2FGLUS
[SPT2015] ATCA J0854-4501 08 54 43.01 -45 01 59.16 2.18 FER2FUSRID
MGPS J085442-450147 08 54 42.91 -45 01 48.00 2.34 MGPS2
2 PMN J0854-4457 08 54 54.41 -44 57 55.08 5.82 PMN
3 TGSSADR J085405.7-450424 08 54 05.71 -45 04 23.88 7.95 GMRTAS150M
4 TGSSADR J085455.5-445547 08 54 55.61 -44 55 46.92 7.96 GMRTAS150M
MGPS J085455-445547 08 54 55.61 -44 55 46.92 7.96 MGPS2
MGPS J085405-450423 08 54 05.71 -45 04 23.16 7.96 MGPS2
5 MGPS J085418-451050 08 54 18.41 -45 10 50.88 9.13 MGPS2
TGSSADR J085418.3-451050 08 54 18.31 -45 10 50.88 9.14 GMRTAS150M
6 MG 265.6+00.1 08 55 32.71 -44 56 31.92 10.32 DIXON
7 PMN J0855-4453 08 55 09.00 -44 53 40.92 10.53 PMN
8 TGSSADR J085431.1-445301 08 54 31.10 -44 53 00.96 11.22 GMRTAS150M
MGPS J085431-445259 08 54 31.20 -44 52 59.16 11.25 MGPS2
9 PMN J0855-4456 08 55 45.10 -44 56 17.88 12.15 PMN

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