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.

3FGL J2109.4+1437

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2109.4+1437 Swift-XRT detections in the field for 3FGL J2109.4+1437

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 08 39.45 +14 35 41.87 4.23 (8 ± 2) x 10-3 47 5.436 3.670
2 21 08 39.54 +14 38 35.20 4.16 (7 ± 2) x 10-3 50 5.106 3.138

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 21 08 40.20 +14 34 07.02 4.33 (5 ± 2) x 10-3 46 4.858 2.747
2 21 08 39.05 +14 37 41.42 4.18 (5 ± 2) x 10-3 53 5.106 2.581
3 21 08 41.55 +14 33 09.89 4.42 (4 ± 2) x 10-3 33 3.639 2.503
4 21 09 42.67 +14 32 26.04 6.41 (2.6 ± 1.1) x 10-3 13 2.360 2.431
5 21 08 39.04 +14 37 42.11 4.18 (4 ± 2) x 10-3 52 4.139 2.368
6 21 08 43.48 +14 31 54.44 4.86 (4 ± 2) x 10-3 23 2.864 2.347
7 21 08 41.72 +14 41 09.29 4.15 (4 ± 2) x 10-3 55 4.739 2.324
8 21 08 41.16 +14 39 52.32 4.15 (4 ± 2) x 10-3 56 4.552 2.293
9 21 09 11.63 +14 38 12.62 5.76 (2.5 ± 1.1) x 10-3 19 2.340 2.283
10 21 09 25.22 +14 46 47.71 6.78 (2.1 ± 0.9) x 10-3 11 2.261 2.245
11 21 08 48.19 +14 44 05.24 4.50 (2.6 ± 1.3) x 10-3 34 3.520 2.069
12 21 08 44.73 +14 43 09.24 4.36 (3 ± 2) x 10-3 30 2.725 2.053
13 21 08 42.08 +14 41 14.73 4.11 (3 ± 2) x 10-3 59 3.541 2.052
14 21 08 40.47 +14 39 45.67 4.16 (4 ± 2) x 10-3 54 5.102 2.026
15 21 08 42.08 +14 41 41.51 4.14 (4 ± 2) x 10-3 47 3.249 2.006
16 21 08 43.66 +14 35 48.32 4.40 (2.8 ± 1.4) x 10-3 27 2.656 1.997
17 21 08 38.25 +14 36 31.18 4.28 (3 ± 2) x 10-3 27 3.304 1.953
18 21 08 42.05 +14 41 14.38 4.11 (3 ± 2) x 10-3 60 4.061 1.684
19 21 08 40.10 +14 35 34.83 4.22 (3 ± 2) x 10-3 55 4.316 1.620
20 21 08 41.54 +14 33 06.16 4.46 (3 ± 2) x 10-3 34 2.781 1.505
21 21 08 44.69 +14 42 36.00 4.27 (2.0 ± 1.4) x 10-3 31 3.061 1.477
22 21 08 40.99 +14 39 50.46 4.14 (2 ± 2) x 10-3 55 2.977 1.316
23 21 08 43.08 +14 42 05.99 4.17 (2 ± 2) x 10-3 46 3.224 1.312
24 21 08 48.04 +14 44 03.21 4.49 (2 ± 2) x 10-3 33 2.742 1.235
25 21 08 40.97 +14 39 50.23 4.14 (2 ± 2) x 10-3 55 2.389 1.149
26 21 08 39.53 +14 37 27.36 4.17 (2 ± 2) x 10-3 49 2.823 1.071
27 21 08 45.95 +14 41 14.91 4.19 (1.1 ± 1.3) x 10-3 32 3.224 0.796
28 21 08 39.50 +14 38 08.48 4.14 (5 ± 12) x 10-4 48 2.394 0.428

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2109.4+1437 Swift-XRT image with known radio, optical and UV sources for 3FGL J2109.4+1437

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 [MML2015] 5BZQ J2108+1430 21 08 41.30 +14 30 27.00 12.85 null

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J210914+143554 21 09 14.90 +14 35 54.96 3.04 NVSS
2 NVSS J210909+143727 21 09 09.79 +14 37 27.12 4.00 NVSS
3 NVSS J210946+142643 21 09 46.90 +14 26 43.08 11.59 NVSS
TGSSADR J210947.0+142643 21 09 46.99 +14 26 43.08 11.61 GMRTAS150M
4 NVSS J210917+142547 21 09 17.21 +14 25 46.92 11.61 NVSS
5 MITG J2108+1430 21 08 43.80 +14 30 00.00 12.54 MITGB6CM
GC2106+14 21 08 41.30 +14 30 24.12 12.82 DIXON
2106+1418 21 08 40.90 +14 30 32.04 12.84 NORTH6CM
TGSSADR J210841.0+143026 21 08 41.11 +14 30 25.92 12.85 GMRTAS150M
CGRaBS J2108+1430 21 08 40.99 +14 30 27.00 12.85 CGRABS
[MML2015] 5BZQ J2108+1430 21 08 40.99 +14 30 27.00 12.85 ROMABZCAT
CRATES J210840+143029 21 08 40.99 +14 30 27.00 12.85 CRATES
6 NVSS J210841+143026 21 08 40.99 +14 30 27.00 12.85 NVSS
GB6 J2108+1430 21 08 40.90 +14 30 29.16 12.86 GB6
PKS J2108+1430 21 08 40.99 +14 30 25.92 12.87 PKSCAT90
GLEAM J210840+143028 21 08 40.80 +14 30 28.08 12.88 GLEAMEGCAT
VLSSr J210840.8+143026 21 08 40.80 +14 30 25.92 12.90 VLSSR
7 NVSS J211004+142750 21 10 04.39 +14 27 51.12 13.13 NVSS
TGSSADR J211004.7+142754 21 10 04.70 +14 27 55.08 13.13 GMRTAS150M
8 PCCS2 143 G063.46-21.79 21 08 38.40 +14 30 10.08 13.55 PCCS143GHZ

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