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 J1545.0-6641

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1545.0-6641 Swift-XRT detections in the field for 3FGL J1545.0-6641

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 44 59.17 -66 41 47.82 3.59 (2.16 ± 0.07) x 10-1 975 28.530 29.840

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 15 45 14.80 -66 36 24.36 5.44 (2.3 ± 0.8) x 10-3 23 2.753 2.792
2 15 45 28.01 -66 43 44.91 5.53 (2.6 ± 1.0) x 10-3 18 2.813 2.741
3 15 45 25.08 -66 32 18.52 5.76 (1.8 ± 0.7) x 10-3 13 2.352 2.421
4 15 44 59.90 -66 52 03.24 4.92 (2.0 ± 0.9) x 10-3 18 2.960 2.292
5 15 44 29.80 -66 46 16.46 5.82 (1.7 ± 0.8) x 10-3 18 2.422 2.277
6 15 46 13.25 -66 48 15.25 5.89 (1.4 ± 0.7) x 10-3 12 2.456 1.952

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1545.0-6641 Swift-XRT image with known radio, optical and UV sources for 3FGL J1545.0-6641

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2E 1540.2-6632 15 44 58.49 -66 41 30.84 0.60 EINSTEIN
2E 1540.2-6632 15 44 58.39 -66 41 30.48 0.61 EINSTEIN
1 1RXS J154458.3-664153 15 44 58.30 -66 41 53.16 0.73 ROSAT
1RXS J154458.3-664153 15 44 58.30 -66 41 53.16 0.73 ROSAT
2RXS J154458.3-664153 15 44 58.37 -66 41 53.88 0.73 ROSAT
2 1RXS J154407.4-663039 15 44 07.39 -66 30 38.88 12.24 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J154459-664146 15 44 59.30 -66 41 45.96 0.59 MGPS2
2 PMN J1544-6641 15 44 49.90 -66 41 12.12 1.48 PMN
3 MGPS J154343-664436 15 43 43.51 -66 44 36.96 8.60 MGPS2
4 MGPS J154609-663525 15 46 09.91 -66 35 25.08 8.88 MGPS2
5 MGPS J154636-664532 15 46 36.31 -66 45 32.04 9.92 MGPS2
6 MGPS J154333-663626 15 43 33.79 -66 36 25.92 10.32 MGPS2
7 MGPS J154319-664234 15 43 19.70 -66 42 33.84 10.42 MGPS2
8 MGPS J154641-664636 15 46 42.00 -66 46 36.12 10.89 MGPS2
9 MGPS J154651-664702 15 46 51.60 -66 47 02.04 11.93 MGPS2

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