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 J2108.0+5155

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2108.0+5155 Swift-XRT detections in the field for 4FGL J2108.0+5155

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 07 20.09 +52 02 57.69 4.61 (1.4 ± 0.2) x 10-2 57 7.346 7.067

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 07 06.90 +52 10 51.16 7.27 (1.2 ± 0.6) x 10-3 6 2.182 1.822

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2108.0+5155 Swift-XRT image with known radio, optical and UV sources for 4FGL J2108.0+5155

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J210721.9+520303 21 07 21.91 +52 03 02.88 9.83 ROSAT
2RXS J210721.3+520258 21 07 21.31 +52 02 58.92 9.84 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J210803+515255 21 08 04.01 +51 52 54.84 2.73 NVSS
CGPS J210804+515254 21 08 04.20 +51 52 54.84 2.75 CGPSNGPCAT
WN 2106.4+5140 21 08 03.41 +51 52 53.04 2.78 WENSS
2 CGPS J210744+515746 21 07 44.50 +51 57 46.08 3.68 CGPSNGPCAT
3 NVSS J210736+520126 21 07 36.10 +52 01 27.12 7.21 NVSS
4 CGPS J210715+515350 21 07 15.60 +51 53 49.92 7.68 CGPSNGPCAT
5 NVSS J210736+514845 21 07 36.31 +51 48 45.00 8.12 NVSS
6 GB6 J2109+5154 21 09 00.89 +51 54 57.96 8.80 GB6
7 NVSS J210831+520339 21 08 31.80 +52 03 39.96 9.07 NVSS
8 NVSS J210903+515749 21 09 03.60 +51 57 50.04 9.43 NVSS
9 WDS J21087+5148 21 08 42.00 +51 47 60.00 9.64 WDS
10 QORG J210722.5+520257 21 07 22.51 +52 02 57.12 9.70 QORGCAT
BD+51 3000 21 08 44.47 +51 47 58.56 9.90 ACRS
SAO 33169 21 08 44.50 +51 47 58.20 9.91 SAO
PPM 39182 21 08 44.50 +51 47 58.20 9.91 PPM
SAO 33149 21 07 20.54 +52 02 57.84 9.91 SAO
PPM 39161 21 07 20.54 +52 02 58.20 9.91 PPM
BD+51 2997 21 07 20.52 +52 02 58.20 9.91 ACRS
HIP 104263 21 07 20.50 +52 02 58.20 9.92 HIPPARCOS
V1061 Cyg 21 07 20.52 +52 02 58.20 9.92 HIC
V1061 Cyg 21 07 20.52 +52 02 58.56 9.92 GCVS
11 NVSS J210827+520453 21 08 27.41 +52 04 54.12 9.92 NVSS
12 CR 54T362 21 06 57.19 +51 58 18.84 10.63 DIXON
13 CGPS J210812+514446 21 08 12.91 +51 44 47.04 10.97 CGPSNGPCAT
14 NVSS J210826+520615 21 08 26.40 +52 06 15.12 11.15 NVSS
15 CGPS J210920+515539 21 09 20.50 +51 55 39.00 11.79 CGPSNGPCAT
CGPS J210656+514934 21 06 56.90 +51 49 35.04 12.00 CGPSNGPCAT
16 NVSS J210656+514932 21 06 56.81 +51 49 32.88 12.04 NVSS
17 PPM 39154 21 06 49.66 +52 00 16.56 12.35 PPM
SAO 33141 21 06 49.63 +52 00 16.56 12.35 SAO
BD+51 2995 21 06 49.63 +52 00 17.28 12.36 ACRS
HD 235443 21 06 49.63 +52 00 16.92 12.36 HIC
HIP 104211 21 06 49.63 +52 00 17.28 12.36 HIPPARCOS
18 NVSS J210716+520554 21 07 16.39 +52 05 53.88 12.60 NVSS
CGPS J210921+515947 21 09 21.60 +51 59 48.12 12.65 CGPSNGPCAT
19 NVSS J210921+515952 21 09 21.79 +51 59 53.16 12.71 NVSS
20 BD+51 3001 21 09 01.49 +51 45 56.88 13.16 ACRS
SAO 33170 21 09 01.42 +51 45 54.72 13.17 SAO
PPM 39183 21 09 01.54 +51 45 55.80 13.17 PPM

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