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.

4FGL J0312.1-0921

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0312.1-0921 Swift-XRT detections in the field for 4FGL J0312.1-0921

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 12 10.80 -09 09 05.67 6.31 (1.4 ± 0.5) x 10-3 14 3.097 3.122
2 03 11 51.81 -09 21 28.75 5.96 (1.6 ± 0.5) x 10-3 18 3.027 3.078

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 11 43.00 -09 12 35.47 5.64 (1.3 ± 0.5) x 10-3 15 3.230 2.730
2 03 11 58.12 -09 16 53.80 5.76 (1.4 ± 0.5) x 10-3 17 3.049 2.577
3 03 12 57.68 -09 09 10.85 6.52 (1.0 ± 0.4) x 10-3 10 2.503 2.499
4 03 11 23.22 -09 28 26.77 7.97 (8 ± 3) x 10-4 7 2.193 2.441
5 03 11 45.73 -09 16 27.99 5.40 (10 ± 5) x 10-4 19 2.771 2.162
6 03 11 50.55 -09 12 29.38 5.70 (9 ± 4) x 10-4 15 2.398 2.095

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0312.1-0921 Swift-XRT image with known radio, optical and UV sources for 4FGL J0312.1-0921


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J031203-092218 03 12 03.60 -09 22 18.84 1.32 NVSS
2 NVSS J031221-091906 03 12 21.19 -09 19 05.88 4.16 NVSS
[SPT2015] ATCA J0312-0919 03 12 21.50 -09 19 01.92 4.26 FER2FUSRID
QORG J031221.6-091902 03 12 21.60 -09 19 01.92 4.29 QORGCAT
[PME2013] J0312-0919 03 12 21.70 -09 19 00.84 4.31 AT2FGLUS
3 NVSS J031140-091835 03 11 40.49 -09 18 36.00 6.98 NVSS
4 PPM 185502 03 11 53.45 -09 15 05.04 6.98 PPM
[SPT2015] ATCA J0312-091A 03 12 18.19 -09 14 39.12 7.18 FER2FUSRID
[PME2013] J0312-091A 03 12 18.31 -09 14 35.88 7.24 AT2FGLUS
5 NVSS J031216-091421 03 12 16.61 -09 14 21.84 7.31 NVSS
TGSSADR J031216.1-091418 03 12 16.20 -09 14 17.88 7.32 GMRTAS150M
QORG J031216.2-091418 03 12 16.20 -09 14 17.88 7.33 QORGCAT
[PME2013] J0312-0914 03 12 16.20 -09 14 17.16 7.34 AT2FGLUS
[SPT2015] ATCA J0312-0914 03 12 16.61 -09 14 18.96 7.35 FER2FUSRID
GLEAM J031216-091407 03 12 16.10 -09 14 08.16 7.48 GLEAMEGCAT
6 GLEAM J031136-091743 03 11 36.70 -09 17 43.08 8.20 GLEAMEGCAT
7 LBN 856 03 12 25.63 -09 13 46.56 8.80 LBN
8 712- 15 03 11 28.51 -09 18 43.92 9.75 NLTT
9 NVSS J031131-091652 03 11 31.30 -09 16 51.96 9.77 NVSS
10 NVSS J031248-092520 03 12 48.31 -09 25 21.00 11.04 NVSS
11 PCCS2 217 G191.52-52.18 03 12 46.90 -09 16 10.92 11.13 PCCS217GHZ
PCCS2 545 G191.51-52.18 03 12 46.70 -09 15 50.04 11.24 PCCS545GHZ
12 NVSS J031122-092427 03 11 22.80 -09 24 28.08 11.31 NVSS
13 PGCC G191.54-52.17 03 12 50.30 -09 16 15.96 11.84 PLANCKGCC
14 QORG J031123.4-092826 03 11 23.40 -09 28 26.04 12.88 QORGCAT
15 PGC 989582 03 12 28.39 -09 33 07.92 13.03 PGC2003

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