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 J0340.4-2423

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0340.4-2423 Swift-XRT detections in the field for 3FGL J0340.4-2423

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 40 50.02 -24 22 59.23 4.90 (9 ± 2) x 10-3 40 5.300 5.301

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 03 41 02.23 -24 19 02.59 5.76 (2.7 ± 1.0) x 10-3 14 2.774 2.625

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0340.4-2423 Swift-XRT image with known radio, optical and UV sources for 3FGL J0340.4-2423

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J034051.2-241142 03 40 51.26 -24 11 42.72 12.97 ROSAT
2RXS J034051.2-241142 03 40 51.26 -24 11 42.72 12.97 ROSAT
1RXS J034051.1-241136 03 40 51.10 -24 11 36.60 13.05 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
[PME2013] J0340-2424 03 40 22.90 -24 24 06.12 1.00 AT2FGLUS
[SPT2015] ATCA J0340-2424 03 40 22.99 -24 24 07.92 1.02 FER2FUSRID
1 NVSS J034022-242411 03 40 22.61 -24 24 11.16 1.12 NVSS
WISH B0338.4-2436 03 40 33.60 -24 27 07.92 4.37 WISH
[SPT2015] ATCA J0340-2427 03 40 33.79 -24 27 09.00 4.39 FER2FUSRID
[PME2013] J0340-2427 03 40 33.70 -24 27 10.08 4.40 AT2FGLUS
TGSSADR J034033.8-242711 03 40 33.91 -24 27 11.16 4.44 GMRTAS150M
2 NVSS J034033-242712 03 40 33.79 -24 27 11.88 4.44 NVSS
GLEAM J034033-242717 03 40 34.01 -24 27 18.00 4.55 GLEAMEGCAT
WISH B0337.7-2429 03 39 56.71 -24 19 26.04 7.50 WISH
TGSSADR J033956.8-241908 03 39 56.81 -24 19 08.04 7.62 GMRTAS150M
GLEAM J033956-241903 03 39 56.90 -24 19 03.00 7.64 GLEAMEGCAT
3 NVSS J033956-241901 03 39 56.81 -24 19 01.92 7.68 NVSS
TGSSADR J034011.2-241605 03 40 11.21 -24 16 05.16 7.81 GMRTAS150M
GLEAM J034010-241604 03 40 10.80 -24 16 05.16 7.85 GLEAMEGCAT
4 NVSS J034011-241602 03 40 11.30 -24 16 01.92 7.85 NVSS
WISH B0338.0-2425 03 40 11.30 -24 16 00.84 7.86 WISH
5 NVSS J034046-241220 03 40 46.10 -24 12 20.16 11.90 NVSS

Penn State University Goddard Space Flight Center Swift