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.

4FGL J0853.6-4306

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0853.6-4306 Swift-XRT detections in the field for 4FGL J0853.6-4306

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 54 41.43 -43 08 25.29 4.97 (1.8 ± 0.3) x 10-2 41 5.587 5.790
2 08 52 30.90 -43 11 04.20 5.96 (3.6 ± 1.1) x 10-3 17 3.164 3.361

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 17.97 -43 11 31.80 6.78 (2.8 ± 0.9) x 10-3 13 2.546 2.999
2 08 53 03.38 -43 10 25.08 5.64 (2.6 ± 1.1) x 10-3 15 2.498 2.457

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0853.6-4306 Swift-XRT image with known radio, optical and UV sources for 4FGL J0853.6-4306

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J085440.7-430832 08 54 40.78 -43 08 31.92 11.12 XMM-NEWTON
XMMSL2 J085440.7-430832 08 54 41.11 -43 08 12.12 11.13 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J085349-430626 08 53 49.30 -43 06 25.92 1.61 MGPS2
2 PGCC G263.95+1.03 08 53 24.41 -43 07 21.00 3.02 PLANCKGCC
3 TGSSADR J085314.9-430252 08 53 14.90 -43 02 53.16 6.06 GMRTAS150M
MGPS J085314-430250 08 53 14.81 -43 02 49.92 6.10 MGPS2
4 TGSSADR J085255.8-430422 08 52 55.90 -43 04 22.08 8.51 GMRTAS150M
5 DENISP_G_J0854198-431214 08 54 19.80 -43 12 14.04 9.02 DENISIGAL
6 NSV 4305 08 54 41.50 -43 08 24.00 11.23 GCVSNSVARS
7 MGPS J085257-431503 08 52 57.10 -43 15 03.96 11.52 MGPS2
TGSSADR J085256.7-431504 08 52 56.81 -43 15 03.96 11.56 GMRTAS150M
8 TGSSADR J085403.2-431756 08 54 03.31 -43 17 57.12 11.96 GMRTAS150M
MGPS J085403-431756 08 54 03.31 -43 17 57.12 11.96 MGPS2
9 MGPS J085411-431826 08 54 11.69 -43 18 27.00 13.02 MGPS2
10 PGCC G263.76+1.03 08 52 43.70 -42 58 33.96 13.22 PLANCKGCC
11 WDS J08527-4317 08 52 42.00 -43 16 59.88 14.83 WDS
12 MGPS J085438-431725 08 54 38.21 -43 17 25.08 14.98 MGPS2
TGSSADR J085438.2-431726 08 54 38.30 -43 17 26.16 15.01 GMRTAS150M

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