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 J0854.4-4404

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0854.4-4404 Swift-XRT detections in the field for 3FGL J0854.4-4404


No detected excesses found.

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 53 58.40 -43 58 55.43 4.71 (3.1 ± 1.1) x 10-3 31 2.954 2.756
2 08 54 02.38 -44 07 21.59 4.33 (2.9 ± 1.2) x 10-3 45 2.611 2.461
3 08 54 00.56 -44 09 11.61 4.45 (2.9 ± 1.3) x 10-3 36 2.812 2.316
4 08 53 47.45 -44 09 54.95 4.39 (2.4 ± 1.1) x 10-3 31 3.039 2.131
5 08 54 08.36 -43 56 56.14 4.54 (2.0 ± 1.1) x 10-3 23 2.573 1.780

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0854.4-4404 Swift-XRT image with known radio, optical and UV sources for 3FGL J0854.4-4404


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 PMN J0854-4407 08 54 08.50 -44 07 28.92 4.67 PMN
2 PMN J0854-4411 08 54 07.30 -44 11 57.12 8.32 PMN
3 PMN J0855-4407 08 55 19.01 -44 07 23.88 9.42 PMN
4 MGPS J085333-440421 08 53 33.41 -44 04 21.00 9.98 MGPS2
TGSSADR J085333.3-440413 08 53 33.31 -44 04 13.08 10.00 GMRTAS150M
5 MGPS J085523-440742 08 55 23.30 -44 07 41.88 10.25 MGPS2
TGSSADR J085523.4-440742 08 55 23.40 -44 07 41.88 10.27 GMRTAS150M
6 PMN J0855-4414 08 55 03.00 -44 14 12.84 11.40 PMN
7 PMN J0854-4416 08 54 32.59 -44 16 21.00 11.78 PMN

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