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 J0351.0-2816

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0351.0-2816 Swift-XRT detections in the field for 3FGL J0351.0-2816

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 50 51.24 -28 16 32.68 3.63 (9.4 ± 0.4) x 10-2 683 24.100 24.850
2 03 50 58.87 -28 06 57.54 4.59 (4.9 ± 0.9) x 10-3 48 6.056 5.704

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 51 19.00 -28 21 40.04 6.31 (1.1 ± 0.5) x 10-3 12 2.599 2.539
2 03 51 19.56 -28 12 09.78 5.76 (1.2 ± 0.5) x 10-3 15 2.931 2.415
3 03 51 30.39 -28 20 00.72 5.31 (1.0 ± 0.5) x 10-3 18 2.404 2.220
4 03 51 33.31 -28 20 59.65 5.76 (10 ± 5) x 10-4 13 2.404 2.163
5 03 51 18.92 -28 23 10.45 5.70 (7 ± 4) x 10-4 14 2.404 1.775
6 03 50 58.87 -28 06 57.54 4.59 (9 ± 5) x 10-4 49 2.420 1.747
7 03 50 51.23 -28 16 33.02 3.63 N/A 687 2.670 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0351.0-2816 Swift-XRT image with known radio, optical and UV sources for 3FGL J0351.0-2816

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J035052.5-281644 03 50 52.54 -28 16 43.68 2.65 XMM-NEWTON
XMMSL2 J035052.5-281644 03 50 52.54 -28 16 43.68 2.65 XMM-NEWTON
6dFGS J0350522-281638 03 50 52.15 -28 16 38.28 2.73 ROSAT
1RXS J035051.7-281619 03 50 51.70 -28 16 19.56 2.84 ROSAT
1RXS J035051.7-281619 03 50 51.70 -28 16 18.84 2.85 ROSAT
2RXS J035051.6-281625 03 50 51.62 -28 16 25.32 2.85 ROSAT
2RXS J035051.6-281625 03 50 51.62 -28 16 25.32 2.85 ROSAT
XMMSL2 J035051.1-281644 03 50 51.53 -28 16 43.68 2.87 XMM-NEWTON
XMMSL2 J035051.1-281644 03 50 51.48 -28 16 30.00 2.88 XMM-NEWTON
XMMSL2 J035051.1-281644 03 50 51.12 -28 16 43.68 2.96 XMM-NEWTON
XMMSL2 J035051.1-281644 03 50 51.12 -28 16 43.68 2.96 XMM-NEWTON
2 2RXS J035050.7-280637 03 50 50.71 -28 06 37.80 10.43 ROSAT
2RXS J035050.7-280637 03 50 50.71 -28 06 37.80 10.43 ROSAT
1RXS J035050.6-280635 03 50 50.59 -28 06 35.64 10.47 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J035051-281630 03 50 51.00 -28 16 31.08 2.98 NVSS
GLEAM J035116-281920 03 51 16.90 -28 19 19.92 3.85 GLEAMEGCAT
TGSSADR J035116.7-281926 03 51 16.80 -28 19 27.12 3.92 GMRTAS150M
2 NVSS J035117-281927 03 51 16.99 -28 19 27.12 3.96 NVSS
3 NVSS J035042-282027 03 50 42.60 -28 20 26.88 6.17 NVSS
4 NVSS J035056-282506 03 50 56.30 -28 25 05.88 8.69 NVSS
5 NVSS J035135-281008 03 51 35.59 -28 10 09.12 9.40 NVSS
TGSSADR J035147.9-281249 03 51 48.00 -28 12 50.04 10.28 GMRTAS150M
GLEAM J035148-281247 03 51 48.10 -28 12 47.16 10.32 GLEAMEGCAT
6 NVSS J035148-281249 03 51 48.19 -28 12 48.96 10.32 NVSS
VLSSr J035148.8-281308 03 51 48.91 -28 13 08.04 10.36 VLSSR
7 NVSS J035131-280656 03 51 31.01 -28 06 56.16 11.29 NVSS
8 NVSS J035016-282406 03 50 16.61 -28 24 06.12 12.94 NVSS
GLEAM J035016-282406 03 50 16.61 -28 24 06.84 12.96 GLEAMEGCAT
TGSSADR J035016.4-282407 03 50 16.51 -28 24 07.92 12.98 GMRTAS150M
9 NVSS J035032-280438 03 50 32.21 -28 04 39.00 13.92 NVSS

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