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 J0818.0+3237

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0818.0+3237 Swift-XRT detections in the field for 3FGL J0818.0+3237

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 17 14.49 +32 41 49.70 4.13 (8.4 ± 0.9) x 10-3 104 9.589 9.081
2 08 17 51.11 +32 43 44.16 4.06 (9.3 ± 1.0) x 10-3 109 9.484 9.005
3 08 17 42.14 +32 33 19.18 4.95 (2.4 ± 0.6) x 10-3 35 4.636 4.309
4 08 17 44.87 +32 40 43.67 4.74 (2.1 ± 0.6) x 10-3 35 4.039 3.831
5 08 18 42.52 +32 50 40.98 5.64 (1.7 ± 0.5) x 10-3 17 3.347 3.222
6 08 18 04.09 +32 50 43.47 5.59 (1.2 ± 0.4) x 10-3 17 3.120 3.040
7 08 17 25.92 +32 40 09.11 5.40 (1.2 ± 0.4) x 10-3 18 2.686 3.020

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 08 17 39.90 +32 40 07.45 4.92 (1.4 ± 0.5) x 10-3 34 2.878 2.994
2 08 17 52.68 +32 41 02.70 5.31 (1.0 ± 0.4) x 10-3 23 2.645 2.511
3 08 18 22.58 +32 44 09.74 5.40 (9 ± 4) x 10-4 21 2.715 2.486
4 08 18 37.06 +32 49 15.59 5.64 (9 ± 4) x 10-4 16 2.588 2.404
5 08 17 51.11 +32 43 44.16 4.06 (1.0 ± 0.5) x 10-3 110 2.652 1.964

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0818.0+3237 Swift-XRT image with known radio, optical and UV sources for 3FGL J0818.0+3237

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J081751.4+324327 08 17 51.41 +32 43 27.12 6.40 ROSAT
2RXS J081751.4+324328 08 17 51.43 +32 43 28.20 6.41 ROSAT
2RXS J081751.4+324328 08 17 51.43 +32 43 28.20 6.41 ROSAT
ROXASDC J081751.7+324331.0 08 17 51.70 +32 43 31.08 6.43 ROSAT
SDSS J081751.00+324340.4 08 17 51.00 +32 43 40.44 6.64 ROSAT
RX J0817.9+3243 08 17 51.00 +32 43 40.44 6.64 ROSAT
[MML2015] 5BZB J0817+3243 08 17 51.00 +32 43 40.80 6.64 null
2 1RXS J081714.0+324152 08 17 13.99 +32 41 52.08 11.62 ROSAT
1RXS J081714.0+324152 08 17 13.99 +32 41 52.08 11.62 ROSAT
1RXS J081714.0+324152 08 17 13.99 +32 41 52.08 11.62 ROSAT
2RXS J081713.8+324152 08 17 13.87 +32 41 52.08 11.65 ROSAT
2RXS J081713.8+324152 08 17 13.87 +32 41 52.08 11.65 ROSAT
3 2RXS J081902.6+322746 08 19 02.64 +32 27 46.80 15.63 ROSAT
2RXS J081902.6+322746 08 19 02.64 +32 27 46.80 15.63 ROSAT
4 [MML2015] 5BZQ J0819+3226 08 19 02.33 +32 26 37.32 16.35 null

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 FIRST J081750.7+323337 08 17 50.71 +32 33 37.08 5.24 FIRST
WN 0814.4+3247 08 17 38.90 +32 38 17.88 5.68 WENSS
2 NVSS J081738+323820 08 17 38.71 +32 38 20.04 5.71 NVSS
TGSSADR J081738.6+323820 08 17 38.71 +32 38 20.04 5.73 GMRTAS150M
FIRST J081738.6+323819 08 17 38.59 +32 38 20.04 5.73 FIRST
ROXASDC J081751.7+324331.0 08 17 51.70 +32 43 31.08 6.43 ROXA
FIRST J081750.9+324340 08 17 51.00 +32 43 40.08 6.64 FIRST
[MML2015] 5BZB J0817+3243 08 17 51.00 +32 43 41.16 6.64 ROMABZCAT
3 NVSS J081750+324339 08 17 50.71 +32 43 40.08 6.65 NVSS
4 FIRST J081830.0+323248 08 18 30.10 +32 32 48.12 7.16 FIRST
5 B2 0814+32B 08 17 43.20 +32 32 21.12 7.23 DIXON
6 NVSS J081743+324330 08 17 43.49 +32 43 30.00 7.37 NVSS
GB6 J0817+3231 08 17 45.31 +32 31 49.08 7.38 GB6
FIRST J081742.9+324327 08 17 42.91 +32 43 27.84 7.42 FIRST
7 NVSS J081740+323225 08 17 40.39 +32 32 25.08 7.59 NVSS
0814+3241 08 17 44.50 +32 31 39.00 7.61 NORTH20CM
0814+3241 08 17 44.50 +32 31 39.00 7.61 NORTH6CM
VLSSr J081744.2+323133 08 17 44.30 +32 31 32.88 7.72 VLSSR
TGSSADR J081744.0+323134 08 17 44.11 +32 31 35.04 7.72 GMRTAS150M
WN 0814.5+3240 08 17 43.90 +32 31 36.12 7.73 WENSS
FIRST J081744.0+323134 08 17 43.99 +32 31 35.04 7.73 FIRST
8 NVSS J081744+323134 08 17 43.99 +32 31 33.96 7.73 NVSS
TGSSADR J081740.0+323215 08 17 40.10 +32 32 16.08 7.74 GMRTAS150M
FIRST J081739.9+323215 08 17 39.91 +32 32 15.00 7.77 FIRST
7C 081434.6+324053 08 17 43.80 +32 31 32.16 7.80 UC7C151MHZ
NVSS J081738+323210 08 17 38.50 +32 32 09.96 8.04 NVSS
9 FIRST J081737.4+323017 08 17 37.39 +32 30 18.00 9.59 FIRST
10 NVSS J081744+324636 08 17 44.59 +32 46 36.84 9.87 NVSS
11 NVSS J081714+324031 08 17 14.30 +32 40 31.08 11.16 NVSS
12 NVSS J081854+323243 08 18 54.60 +32 32 43.08 11.48 NVSS
FIRST J081855.1+323246 08 18 55.10 +32 32 45.96 11.56 FIRST
13 TXS 0814+326 08 17 29.21 +32 27 33.12 12.82 TEXAS
CRATES J081728+322709 08 17 28.39 +32 27 21.96 13.07 CRATES
GB6 J0817+3227 08 17 28.80 +32 27 09.00 13.20 GB6
0814+3236 08 17 28.90 +32 27 06.12 13.22 NORTH20CM
0814+3236 08 17 28.90 +32 27 06.12 13.22 NORTH6CM
CRATES J081728+322709 08 17 28.80 +32 27 06.84 13.22 CRATES
14 NVSS J081728+322703 08 17 28.61 +32 27 02.88 13.30 NVSS
WN 0814.3+3236 08 17 28.39 +32 27 03.96 13.31 WENSS
TGSSADR J081728.5+322703 08 17 28.49 +32 27 02.88 13.31 GMRTAS150M
FIRST J081728.5+322703 08 17 28.49 +32 27 02.88 13.31 FIRST
CRATES J081728+322709 08 17 28.49 +32 27 02.88 13.31 CRATES
CGRaBS J0817+3227 08 17 28.49 +32 27 02.88 13.31 CGRABS
7C 081419.4+323623 08 17 28.49 +32 27 02.88 13.32 UC7C151MHZ
MITG J0817+3226 08 17 28.80 +32 26 58.92 13.33 MITGB6CM
VLSSr J081728.4+322700 08 17 28.49 +32 27 00.00 13.36 VLSSR
15 B2 0814+32A 08 17 29.40 +32 26 34.08 13.61 DIXON
0815+3236 08 19 00.79 +32 26 51.00 15.95 NORTH20CM
0815+3236 08 19 00.79 +32 26 51.00 15.95 NORTH6CM
16 7C 081553.3+323637 08 19 02.21 +32 27 11.16 15.95 UC7C151MHZ
GB6 J0819+3226 08 19 01.99 +32 26 42.00 16.25 GB6
[MML2015] 5BZQ J0819+3226 08 19 02.30 +32 26 36.96 16.35 ROMABZCAT
CGRaBS J0819+3226 08 19 02.30 +32 26 36.96 16.35 CGRABS
CRATES J081902+322642 08 19 02.30 +32 26 36.96 16.35 CRATES
FIRST J081902.3+322637 08 19 02.30 +32 26 36.96 16.35 FIRST
17 NVSS J081902+322637 08 19 02.40 +32 26 36.96 16.36 NVSS
TGSSADR J081902.4+322636 08 19 02.40 +32 26 36.96 16.37 GMRTAS150M
WN 0815.8+3236 08 19 02.40 +32 26 35.88 16.38 WENSS

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