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 J0401.0-5359

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0401.0-5359 Swift-XRT detections in the field for 3FGL J0401.0-5359

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 01 11.22 -53 54 58.80 3.64 (1.80 ± 0.08) x 10-1 633 25.620 24.150
2 04 00 21.68 -53 50 03.56 6.65 (4.5 ± 1.4) x 10-3 12 3.149 3.170

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 02 07.30 -54 02 13.66 5.44 (3.6 ± 1.2) x 10-3 19 3.711 2.940
2 04 01 04.90 -54 02 59.23 6.93 (2.1 ± 0.9) x 10-3 13 2.387 2.332
3 04 01 15.11 -53 52 02.26 6.52 (2.3 ± 1.0) x 10-3 11 2.528 2.278

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0401.0-5359 Swift-XRT image with known radio, optical and UV sources for 3FGL J0401.0-5359

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J040118.0-535638 04 01 18.19 -53 56 38.04 3.45 XMM-NEWTON
XMMSL2 J040118.0-535638 04 01 18.19 -53 56 38.04 3.45 XMM-NEWTON
2 XMMSL2 J040111.6-535500 04 01 10.49 -53 55 00.12 4.35 XMM-NEWTON
XMMSL2 J040111.6-535500 04 01 11.59 -53 54 59.76 4.40 XMM-NEWTON
XMMSL2 J040111.6-535500 04 01 11.59 -53 54 59.76 4.40 XMM-NEWTON
6dFGS J0401112-535458 04 01 11.18 -53 54 58.32 4.41 ROSAT
2RXS J040111.3-535457 04 01 11.38 -53 54 57.24 4.43 ROSAT
2RXS J040111.3-535457 04 01 11.38 -53 54 57.24 4.43 ROSAT
1RXS J040111.9-535456 04 01 11.90 -53 54 56.16 4.48 ROSAT
1RXS J040111.9-535456 04 01 11.90 -53 54 56.16 4.48 ROSAT
3 1RXS J040204.5-540216 04 02 04.51 -54 02 16.44 9.66 ROSAT
2RXS J040205.4-540219 04 02 05.47 -54 02 19.32 9.81 ROSAT
2RXS J040205.4-540219 04 02 05.47 -54 02 19.32 9.81 ROSAT
4 1RXS J040005.7-534933 04 00 05.71 -53 49 33.60 12.72 ROSAT
2RXS J040006.5-534925 04 00 06.55 -53 49 25.32 12.74 ROSAT
2RXS J040006.5-534925 04 00 06.55 -53 49 25.32 12.74 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J040110-535010 04 01 10.61 -53 50 09.96 9.09 SUMSS
2 GLEAM J040110-540821 04 01 10.51 -54 08 21.12 9.26 GLEAMEGCAT
MWACS J0401.1-5408 04 01 11.90 -54 08 20.04 9.27 MWACS
SUMSS J040110-540827 04 01 10.80 -54 08 27.96 9.37 SUMSS
3 SUMSS J035958-535507 03 59 58.99 -53 55 06.96 10.15 SUMSS

Penn State University Goddard Space Flight Center Swift