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 J1109.1-4853

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1109.1-4853 Swift-XRT detections in the field for 4FGL J1109.1-4853

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 11 08 44.79 -49 01 36.16 5.70 (4.4 ± 1.0) x 10-3 23 4.179 4.230
2 11 08 14.18 -48 58 01.55 5.64 (4.4 ± 1.1) x 10-3 22 4.231 4.032

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 11 09 28.31 -48 47 33.05 6.78 (2.0 ± 0.8) x 10-3 10 2.618 2.630
2 11 09 29.58 -48 52 24.74 6.65 (1.8 ± 0.7) x 10-3 16 2.396 2.441

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1109.1-4853 Swift-XRT image with known radio, optical and UV sources for 4FGL J1109.1-4853


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 TGSSADR J110912.6-485813 11 09 12.70 -48 58 13.08 4.53 GMRTAS150M
SUMSS J110912-485813 11 09 12.79 -48 58 14.16 4.54 SUMSS
2 SUMSS J110834-485347 11 08 34.20 -48 53 48.12 5.34 SUMSS
TGSSADR J110834.1-485347 11 08 34.20 -48 53 48.12 5.35 GMRTAS150M
GLEAM J110833-485341 11 08 33.89 -48 53 40.92 5.39 GLEAMEGCAT
3 PGC 483528 11 09 10.20 -48 48 15.84 5.57 PGC2003
4 PMN J1108-4851 11 08 34.30 -48 51 32.04 5.79 PMN
5 PPM 757961 11 09 54.00 -48 51 30.24 8.11 PPM
6 GLEAM J110811-485752 11 08 11.30 -48 57 51.84 9.96 GLEAMEGCAT
SUMSS J110811-485807 11 08 11.69 -48 58 08.04 10.02 SUMSS
TGSSADR J110811.6-485807 11 08 11.69 -48 58 06.96 10.02 GMRTAS150M

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