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 J1843.3-1242

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1843.3-1242 Swift-XRT detections in the field for 4FGL J1843.3-1242

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 43 55.71 -12 41 34.22 6.31 (4.2 ± 1.3) x 10-3 15 3.305 3.153

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 18 43 16.08 -12 44 50.13 7.97 (2.7 ± 1.1) x 10-3 10 2.574 2.503

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1843.3-1242 Swift-XRT image with known radio, optical and UV sources for 4FGL J1843.3-1242


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 J184310-124411 18 43 10.80 -12 44 11.04 2.96 NVSS
2 PPM 234942 18 43 36.70 -12 42 26.28 3.71 PPM
BD-12 5151 18 43 36.72 -12 42 26.28 3.72 ACRS
3 NVSS J184337-124426 18 43 37.51 -12 44 26.16 4.23 NVSS
TGSSADR J184337.4-124427 18 43 37.51 -12 44 27.96 4.23 GMRTAS150M
4 NVSS J184354-124554 18 43 54.70 -12 45 55.08 8.68 NVSS
TGSSADR J184354.7-124555 18 43 54.70 -12 45 56.16 8.68 GMRTAS150M
TXS 1841-128 18 43 55.01 -12 45 56.88 8.75 TEXAS
5 PMN J1843-1245 18 43 56.21 -12 45 28.08 8.86 PMN
6 NVSS J184358-124322 18 43 58.39 -12 43 22.08 9.00 NVSS
TGSSADR J184358.5-124317 18 43 58.51 -12 43 17.04 9.03 GMRTAS150M
QORG J184358.6-124250 18 43 58.61 -12 42 50.04 9.04 QORGCAT
7 NVSS J184358-124224 18 43 58.99 -12 42 24.84 9.13 NVSS
8 NVSS J184336-125112 18 43 36.41 -12 51 11.88 9.17 NVSS
TGSSADR J184359.1-124217 18 43 59.11 -12 42 16.92 9.17 GMRTAS150M
9 NVSS J184321-123309 18 43 21.10 -12 33 09.00 9.63 NVSS
TGSSADR J184321.2-123308 18 43 21.19 -12 33 07.92 9.65 GMRTAS150M
10 PGC 202789 18 42 45.41 -12 36 54.00 10.60 PGC2003
CGMW 3-2531 18 42 45.36 -12 36 54.00 10.61 CGMW
11 NVSS J184241-124759 18 42 41.40 -12 47 58.92 11.08 NVSS
12 NVSS J184256-123320 18 42 56.50 -12 33 20.88 11.25 NVSS
13 NVSS J184243-123412 18 42 43.70 -12 34 12.00 12.60 NVSS
14 NVSS J184242-123249 18 42 42.41 -12 32 49.92 13.80 NVSS
15 NVSS J184405-125440 18 44 05.21 -12 54 39.96 15.96 NVSS

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