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.

1FGL J1829.3-2423

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1829.3-2423 Swift-XRT detections in the field for 1FGL J1829.3-2423

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 28 54.84 -24 17 34.90 4.04 (4.5 ± 0.4) x 10-2 138 11.040 10.790

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 29 16.25 -24 27 11.59 7.09 (4 ± 2) x 10-3 9 2.459 2.584
2 18 29 22.00 -24 10 47.25 5.24 (3.2 ± 1.4) x 10-3 20 2.861 2.273
3 18 29 05.13 -24 12 46.03 6.21 (3.0 ± 1.3) x 10-3 12 2.523 2.245
4 18 29 27.64 -24 11 28.96 5.28 (2.7 ± 1.3) x 10-3 15 2.567 2.057
5 18 28 54.84 -24 17 34.90 4.04 (2 ± 2) x 10-3 136 2.500 1.041

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1829.3-2423 Swift-XRT image with known radio, optical and UV sources for 1FGL J1829.3-2423

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J182856.9-242128 18 28 57.00 -24 21 28.80 5.15 CHANDRA
X182856.99-242128.9 18 28 57.00 -24 21 28.80 5.16 CHANDRA
2 CXOGSG J182854.9-242111 18 28 54.91 -24 21 11.88 5.69 CHANDRA
2RXP J182854.9-241739 18 28 54.84 -24 17 39.12 7.63 ROSAT
3 X182854.93-241736.2 18 28 54.94 -24 17 36.24 7.64 CHANDRA
CXOGSG J182854.9-241736 18 28 54.94 -24 17 36.24 7.65 CHANDRA
XMMSL2 J182855.2-241733 18 28 55.18 -24 17 32.64 7.65 XMM-NEWTON
XMMSL2 J182855.2-241733 18 28 54.98 -24 17 34.44 7.66 XMM-NEWTON
1RXS J182853.8-241746 18 28 53.81 -24 17 46.68 7.71 ROSAT
1RXS J182853.8-241746 18 28 53.81 -24 17 45.96 7.72 ROSAT
1WGA J1828.9-2417 18 28 54.10 -24 17 31.56 7.83 ROSAT
2RXS J182854.9-241720 18 28 54.96 -24 17 20.04 7.83 ROSAT
4 CXOGSG J182852.0-241743 18 28 52.20 -24 17 43.08 8.05 CHANDRA
5 1RXS J182950.5-243351 18 29 50.50 -24 33 51.48 13.04 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J182909-242533 18 29 09.50 -24 25 33.96 3.28 NVSS
TGSSADR J182854.8-241738 18 28 54.91 -24 17 39.12 7.62 GMRTAS150M
2 NVSS J182854-241737 18 28 54.79 -24 17 36.96 7.65 NVSS
3 PMN J1828-2417 18 28 56.21 -24 17 12.12 7.74 PMN
4 NVSS J182945-241724 18 29 45.00 -24 17 24.00 8.23 NVSS
5 NVSS J182855-242931 18 28 55.20 -24 29 31.92 8.40 NVSS
6 NVSS J183010-242308 18 30 10.20 -24 23 08.88 11.74 NVSS
PMN J1830-2422 18 30 10.30 -24 22 57.00 11.77 PMN
TGSSADR J183010.3-242319 18 30 10.30 -24 23 20.04 11.78 GMRTAS150M
7 NVSS J183010-242427 18 30 10.90 -24 24 28.08 12.00 NVSS
8 NVSS J182840-241405 18 28 40.80 -24 14 04.92 12.40 NVSS
9 NVSS J182825-242759 18 28 25.99 -24 28 00.12 12.97 NVSS
10 NVSS J183005-241526 18 30 05.50 -24 15 25.92 13.10 NVSS
11 NVSS J182835-241346 18 28 34.99 -24 13 45.84 13.57 NVSS
TGSSADR J182834.6-241348 18 28 34.70 -24 13 49.08 13.60 GMRTAS150M
12 NVSS J182831-241224 18 28 31.70 -24 12 24.84 15.06 NVSS
13 NVSS J183005-241143 18 30 05.40 -24 11 43.08 15.53 NVSS

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