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 J0851.4-4244

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0851.4-4244 Swift-XRT detections in the field for 3FGL J0851.4-4244

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 51 15.94 -42 53 26.57 4.22 (9 ± 2) x 10-3 55 5.362 4.719
2 08 51 09.42 -42 56 59.11 4.81 (3.9 ± 1.2) x 10-3 23 3.601 3.269
3 08 50 35.69 -42 54 42.69 5.11 (4.0 ± 1.3) x 10-3 17 3.127 3.064

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 51 53.82 -42 50 05.82 4.57 (3.3 ± 1.2) x 10-3 39 3.102 2.645
2 08 51 36.39 -42 51 24.42 4.86 (3.3 ± 1.3) x 10-3 29 2.630 2.497
3 08 51 59.19 -42 45 10.93 5.00 (3.0 ± 1.2) x 10-3 29 2.611 2.480
4 08 51 55.48 -42 47 49.24 4.66 (3.0 ± 1.3) x 10-3 30 2.619 2.404
5 08 52 13.81 -42 46 24.80 4.63 (2.9 ± 1.3) x 10-3 32 2.775 2.204
6 08 51 45.18 -42 54 26.43 4.37 (2.4 ± 1.1) x 10-3 40 2.830 2.171
7 08 51 13.22 -42 55 51.47 4.28 (2.5 ± 1.3) x 10-3 29 2.742 1.980
8 08 51 15.40 -42 53 26.35 4.21 (2.0 ± 1.2) x 10-3 53 2.601 1.713
9 08 52 11.78 -42 48 54.66 4.45 (1.9 ± 1.1) x 10-3 44 3.029 1.663
10 08 51 36.25 -42 54 07.34 4.40 (1.7 ± 1.1) x 10-3 33 2.807 1.575

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0851.4-4244 Swift-XRT image with known radio, optical and UV sources for 3FGL J0851.4-4244


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 MGPS J085122-423823 08 51 22.10 -42 38 22.92 6.56 MGPS2
TGSSADR J085122.0-423820 08 51 22.10 -42 38 20.04 6.62 GMRTAS150M
2 PMN J0852-4236 08 52 17.50 -42 36 39.96 12.29 PMN
3 MGPS J085159-425556 08 51 59.59 -42 55 57.00 12.53 MGPS2

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