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 J0423.0-0943

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0423.0-0943 Swift-XRT detections in the field for 4FGL J0423.0-0943


No detected excesses found.

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 23 00.76 -09 34 11.63 7.27 (2.4 ± 0.8) x 10-3 12 2.863 2.944
2 04 23 09.80 -09 50 08.25 7.48 (2.0 ± 0.8) x 10-3 10 2.685 2.444

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0423.0-0943 Swift-XRT image with known radio, optical and UV sources for 4FGL J0423.0-0943


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 PGC 987761 04 23 00.19 -09 41 21.12 1.81 PGC2003
2 NVSS J042300-094943 04 23 00.19 -09 49 42.96 6.55 NVSS
TGSSADR J042323.8-093919 04 23 23.90 -09 39 19.08 6.97 GMRTAS150M
3 NVSS J042324-093919 04 23 24.19 -09 39 20.16 7.04 NVSS
4 NVSS J042236-094742 04 22 36.79 -09 47 43.08 7.36 NVSS
TGSSADR J042236.4-094750 04 22 36.50 -09 47 49.92 7.50 GMRTAS150M
5 GLEAM J042236-094822 04 22 36.91 -09 48 21.96 7.76 GLEAMEGCAT
TGSSADR J042237.9-094856 04 22 37.90 -09 48 56.88 7.99 GMRTAS150M
QORG J042238.0-094859 04 22 37.99 -09 48 59.04 8.00 QORGCAT
6 NVSS J042238-094859 04 22 37.99 -09 49 00.12 8.01 NVSS
7 NVSS J042316-093438 04 23 16.10 -09 34 37.92 9.38 NVSS
8 NVSS J042300-093327 04 23 00.50 -09 33 28.08 9.71 NVSS
TGSSADR J042300.7-093323 04 23 00.70 -09 33 24.12 9.77 GMRTAS150M
9 NVSS J042339-094220 04 23 39.79 -09 42 20.16 9.77 NVSS
GLEAM J042300-093320 04 23 01.01 -09 33 20.16 9.83 GLEAMEGCAT
10 NVSS J042250-093255 04 22 50.50 -09 32 54.96 10.53 NVSS
11 OF-134 04 23 03.10 -09 54 03.96 10.92 DIXON
12 NVSS J042346-094110 04 23 46.01 -09 41 11.04 11.44 NVSS
13 NVSS J042225-093517 04 22 25.10 -09 35 17.88 11.71 NVSS
14 PPM 701659 04 22 18.43 -09 37 19.20 11.86 PPM
QORG J042212.0-094334 04 22 12.00 -09 43 33.96 11.91 QORGCAT
15 NVSS J042211-094331 04 22 12.00 -09 43 32.16 11.91 NVSS
16 PGC 989967 04 22 41.40 -09 31 26.04 12.62 PGC2003
17 PGC 984857 04 22 32.81 -09 54 37.08 13.31 PGC2003
TGSSADR J042216.0-093412 04 22 16.10 -09 34 13.08 14.10 GMRTAS150M
GLEAM J042216-093404 04 22 16.20 -09 34 04.08 14.17 GLEAMEGCAT
18 NVSS J042215-093405 04 22 15.41 -09 34 05.88 14.31 NVSS
QORG J042215.3-093407 04 22 15.31 -09 34 06.96 14.31 QORGCAT
19 NVSS J042211-093445 04 22 11.71 -09 34 45.12 14.63 NVSS
QORG J042211.6-093447 04 22 11.59 -09 34 46.92 14.64 QORGCAT

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