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.

1FGL J0854.6-4504

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0854.6-4504 Swift-XRT detections in the field for 1FGL J0854.6-4504

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 54 50.17 -45 11 37.23 3.79 (2.2 ± 0.7) x 10-3 113 3.163 3.178

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 40.71 -44 58 28.52 3.75 (2.1 ± 0.7) x 10-3 154 3.243 2.974
2 08 54 42.09 -44 59 42.79 3.76 (1.9 ± 0.7) x 10-3 179 3.774 2.776
3 08 55 31.86 -45 09 42.74 3.74 (1.8 ± 0.7) x 10-3 123 3.229 2.483
4 08 55 27.55 -44 59 11.61 3.80 (1.4 ± 0.6) x 10-3 98 3.303 2.186
5 08 55 08.50 -44 58 28.01 3.75 (1.0 ± 0.6) x 10-3 134 3.166 1.649

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0854.6-4504 Swift-XRT image with known radio, optical and UV sources for 1FGL J0854.6-4504

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 4.80 XMM-NEWTON
2 null 08 55 18.91 -45 02 19.32 7.23 EXOSAT
3 null 08 55 16.66 -44 58 08.04 8.87 EXOSAT
4 ... 08 55 43.44 -45 04 02.28 11.36 EINSTEIN
5 XMMSL2 J085538.2-450842 08 55 38.23 -45 08 42.36 11.44 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [SPT2015] ATCA J0854-4501 08 54 43.01 -45 01 59.16 2.14 FER2FUSRID
[PME2013] J0854-4501 08 54 43.01 -45 01 59.16 2.14 AT2FGLUS
MGPS J085442-450147 08 54 42.91 -45 01 48.00 2.31 MGPS2
2 TGSSADR J085405.7-450424 08 54 05.71 -45 04 23.88 5.90 GMRTAS150M
MGPS J085405-450423 08 54 05.71 -45 04 23.16 5.92 MGPS2
3 PMN J0854-4457 08 54 54.41 -44 57 55.08 6.66 PMN
4 MGPS J085418-451050 08 54 18.41 -45 10 50.88 7.75 MGPS2
TGSSADR J085418.3-451050 08 54 18.31 -45 10 50.88 7.76 GMRTAS150M
5 TGSSADR J085455.5-445547 08 54 55.61 -44 55 46.92 8.73 GMRTAS150M
MGPS J085455-445547 08 54 55.61 -44 55 46.92 8.73 MGPS2
6 TGSSADR J085431.1-445301 08 54 31.10 -44 53 00.96 11.08 GMRTAS150M
MGPS J085431-445259 08 54 31.20 -44 52 59.16 11.11 MGPS2
7 PMN J0855-4453 08 55 09.00 -44 53 40.92 11.60 PMN
8 MG 265.6+00.1 08 55 32.71 -44 56 31.92 12.06 DIXON
9 PMN J0855-4456 08 55 45.10 -44 56 17.88 13.98 PMN

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