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.

2FGL J1828.7+3231

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J1828.7+3231 Swift-XRT detections in the field for 2FGL J1828.7+3231

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 29 15.54 +32 34 32.03 4.51 (1.4 ± 0.2) x 10-2 59 7.131 6.918
2 18 29 36.88 +32 29 56.49 6.31 (2.7 ± 0.9) x 10-3 15 2.995 3.000

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 28 59.58 +32 32 48.28 6.31 (2.3 ± 0.9) x 10-3 12 2.536 2.550

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1828.7+3231 Swift-XRT image with known radio, optical and UV sources for 2FGL J1828.7+3231

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J182915.2+323439 18 29 15.24 +32 34 39.00 7.35 ROSAT
2RXS J182915.2+323439 18 29 15.24 +32 34 39.00 7.35 ROSAT
1RXS J182915.3+323440 18 29 15.31 +32 34 40.08 7.37 ROSAT
2 1RXS J182917.8+323931 18 29 17.81 +32 39 30.96 10.68 ROSAT
2RXS J182918.6+323928 18 29 18.67 +32 39 28.44 10.78 ROSAT
2RXS J182918.6+323928 18 29 18.67 +32 39 28.44 10.78 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J182835+323108 18 28 35.50 +32 31 08.04 1.74 NVSS
[SPT2015] VLA J1828+3231 18 28 35.50 +32 31 08.04 1.74 FER2FUSRID
WN 1826.7+3229 18 28 35.50 +32 31 05.16 1.75 WENSS
WN 1826.7+3229A 18 28 35.40 +32 31 09.12 1.75 WENSS
TGSSADR J182835.4+323107 18 28 35.40 +32 31 08.04 1.76 GMRTAS150M
VLSSr J182834.9+323119 18 28 34.99 +32 31 19.92 1.79 VLSSR
B2 1826+32D 18 28 35.40 +32 30 48.96 1.88 DIXON
2 NVSS J182837+322901 18 28 37.20 +32 29 00.96 2.97 NVSS
3 NVSS J182846+323449 18 28 46.30 +32 34 50.16 3.21 NVSS
4 WN 1826.7+3229B 18 28 38.40 +32 28 24.96 3.43 WENSS
5 NVSS J182823+323258 18 28 24.00 +32 32 57.84 4.27 NVSS
6 NVSS J182841+322705 18 28 41.30 +32 27 05.04 4.62 NVSS
7 VLSSr J182837.9+323642 18 28 37.90 +32 36 42.12 5.15 VLSSR
8 NVSS J182902+322550 18 29 02.90 +32 25 50.88 7.15 NVSS
9 NVSS J182901+322412 18 29 01.80 +32 24 11.88 8.44 NVSS
B2 1827+32B 18 29 01.80 +32 23 57.12 8.67 DIXON
10 NVSS J182843+322248 18 28 43.39 +32 22 49.08 8.87 NVSS
WN 1826.8+3220 18 28 43.30 +32 22 42.96 8.98 WENSS
11 NVSS J182801+323005 18 28 01.10 +32 30 06.12 9.04 NVSS
TGSSADR J182801.0+323004 18 28 01.10 +32 30 05.04 9.05 GMRTAS150M
12 NVSS J182815+322442 18 28 15.89 +32 24 42.12 9.06 NVSS
WN 1826.1+3228 18 28 01.01 +32 30 02.16 9.07 WENSS
TGSSADR J182815.6+322438 18 28 15.70 +32 24 38.88 9.14 GMRTAS150M
13 B2 1826+32C 18 28 00.10 +32 32 39.84 9.17 DIXON
14 NVSS J182918+322554 18 29 18.60 +32 25 54.84 9.42 NVSS
WN 1827.0+3218C 18 29 03.60 +32 22 57.00 9.74 WENSS
WN 1827.1+3218B 18 29 03.60 +32 22 54.84 9.75 WENSS
15 NVSS J182903+322238 18 29 03.91 +32 22 37.92 10.04 NVSS
16 NVSS J182811+324024 18 28 12.00 +32 40 23.88 10.94 NVSS
17 NVSS J182902+322040 18 29 02.21 +32 20 40.92 11.70 NVSS
WN 1827.0+3218 18 28 56.71 +32 20 12.84 11.81 WENSS
WN 1827.1+3218 18 28 58.10 +32 20 17.16 11.82 WENSS
[PGB2011] J1828+3220 18 28 56.90 +32 20 03.84 11.97 CRATESOCRAP
CRATES J182858+321945 18 28 56.90 +32 20 03.84 11.97 CRATES
TGSSADR J182856.8+322003 18 28 56.90 +32 20 03.12 11.98 GMRTAS150M
18 NVSS J182856+322002 18 28 57.00 +32 20 02.04 12.00 NVSS
1827+3217 18 28 57.00 +32 19 51.96 12.17 NORTH6CM
1827+3217 18 28 57.00 +32 19 51.96 12.17 NORTH20CM
WN 1827.0+3218B 18 28 56.50 +32 19 49.08 12.19 WENSS
MITG J1828+3219b 18 28 58.39 +32 19 50.16 12.27 MITGB6CM
GB6 J1828+3219 18 28 58.01 +32 19 45.12 12.33 GB6
TGSSADR J182914.4+322002 18 29 14.50 +32 20 03.12 13.37 GMRTAS150M
WN 1827.3+3217 18 29 14.21 +32 19 59.88 13.37 WENSS
WN 1827.1+3218C 18 29 13.99 +32 19 59.16 13.38 WENSS
19 NVSS J182914+322001 18 29 14.59 +32 20 02.04 13.39 NVSS
20 NVSS J182748+322120 18 27 48.10 +32 21 20.88 15.58 NVSS

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