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 J0420.4-6013

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0420.4-6013 Swift-XRT detections in the field for 3FGL J0420.4-6013

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 20 11.02 -60 15 04.83 3.78 (6.1 ± 0.4) x 10-2 300 15.840 16.160
2 04 21 48.36 -60 21 42.39 5.59 (4.3 ± 1.2) x 10-3 22 3.857 3.717

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 04 19 16.15 -60 16 57.37 5.40 (2.2 ± 0.8) x 10-3 21 2.872 2.752
2 04 21 02.45 -60 03 53.03 6.65 (2.5 ± 1.0) x 10-3 11 2.665 2.615
3 04 19 46.02 -60 07 44.02 6.41 (1.9 ± 0.8) x 10-3 13 2.556 2.407
4 04 20 13.43 -60 04 49.61 6.65 (1.4 ± 0.7) x 10-3 9 2.261 2.169
5 04 19 21.29 -60 09 36.08 6.04 (1.5 ± 0.8) x 10-3 13 2.465 1.992
6 04 19 12.50 -60 15 13.92 5.70 (1.4 ± 0.7) x 10-3 18 2.743 1.900
7 04 20 11.01 -60 15 05.02 3.79 (2 ± 2) x 10-3 302 3.248 1.391

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0420.4-6013 Swift-XRT image with known radio, optical and UV sources for 3FGL J0420.4-6013

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1RXS J042012.8-601446 04 20 12.79 -60 14 45.96 2.29 ROSAT
1RXS J042012.8-601446 04 20 12.82 -60 14 46.32 2.29 ROSAT
1 XMMSL2 J042011.1-601507 04 20 11.30 -60 14 57.12 2.54 XMM-NEWTON
2RXS J042011.7-601502 04 20 11.74 -60 15 02.52 2.55 ROSAT
2RXS J042011.7-601502 04 20 11.74 -60 15 02.52 2.55 ROSAT
XMMSL2 J042011.1-601507 04 20 11.33 -60 15 03.60 2.60 XMM-NEWTON
XMMSL2 J042011.1-601507 04 20 11.11 -60 15 06.84 2.65 XMM-NEWTON
XMMSL2 J042011.1-601507 04 20 11.11 -60 15 06.84 2.65 XMM-NEWTON
XMMSL2 J042011.1-601507 04 20 10.44 -60 15 00.00 2.66 XMM-NEWTON
XMMSL2 J042011.1-601507 04 20 11.59 -60 15 14.76 2.68 XMM-NEWTON
XMMSL2 J042011.1-601507 04 20 10.70 -60 15 02.16 2.72 XMM-NEWTON
2 1RXS J042148.1-602139 04 21 48.10 -60 21 39.60 12.70 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J042020-601904 04 20 20.69 -60 19 05.16 5.54 SUMSS

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