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 J2104.0+4623

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2104.0+4623 Swift-XRT detections in the field for 4FGL J2104.0+4623

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 04 04.58 +46 31 13.45 3.53 (6.94 ± 0.13) x 10-2 3418 51.380 54.550
2 21 02 58.90 +46 29 28.28 3.69 (4.7 ± 0.4) x 10-3 288 13.180 13.350
3 21 03 29.88 +46 35 12.33 3.68 (4.4 ± 0.3) x 10-3 277 13.180 12.940
4 21 03 53.93 +46 19 59.89 3.81 (1.3 ± 0.2) x 10-3 170 6.214 5.962
5 21 03 42.46 +46 34 42.90 3.77 (1.2 ± 0.2) x 10-3 115 5.618 5.479
6 21 04 44.17 +46 23 31.05 3.83 (1.0 ± 0.2) x 10-3 119 5.835 5.098
7 21 03 45.67 +46 24 35.19 3.76 (9 ± 2) x 10-4 188 3.870 4.342
8 21 05 05.03 +46 32 46.99 4.00 (6 ± 2) x 10-4 59 4.350 4.247
9 21 04 22.52 +46 37 46.19 3.86 (7 ± 2) x 10-4 70 4.130 4.091
10 21 04 34.14 +46 27 45.70 3.81 (6 ± 2) x 10-4 139 3.512 3.636
11 21 03 38.14 +46 24 26.97 3.77 (7 ± 2) x 10-4 158 4.509 3.618
12 21 04 03.94 +46 36 14.24 3.84 (5 ± 2) x 10-4 76 3.250 3.366
13 21 04 52.91 +46 34 47.25 3.96 (4.0 ± 1.3) x 10-4 52 2.997 3.025
14 21 05 00.98 +46 34 27.62 4.01 (3.8 ± 1.3) x 10-4 49 3.141 3.002

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 03 20.80 +46 23 10.11 3.82 (5 ± 2) x 10-4 121 3.447 2.910
2 21 03 48.49 +46 22 01.30 3.77 (5 ± 2) x 10-4 195 3.027 2.865
3 21 04 16.12 +46 26 22.30 3.81 (5 ± 2) x 10-4 135 3.043 2.791
4 21 03 07.51 +46 34 46.74 3.84 (2.9 ± 1.4) x 10-4 55 2.856 2.142
5 21 02 58.94 +46 29 27.88 3.69 (5 ± 3) x 10-4 288 3.781 1.747
6 21 02 58.90 +46 29 28.28 3.69 (2 ± 2) x 10-4 288 2.800 1.684
7 21 04 04.58 +46 31 13.45 3.53 N/A 3418 3.048 N/A
8 21 04 04.58 +46 31 13.45 3.53 N/A 3391 5.717 N/A
9 21 04 04.59 +46 31 13.46 3.53 N/A 3366 5.588 N/A
10 21 04 04.58 +46 31 13.37 3.53 N/A 3366 3.910 N/A
11 21 04 04.58 +46 31 13.37 3.53 N/A 3366 5.266 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2104.0+4623 Swift-XRT image with known radio, optical and UV sources for 4FGL J2104.0+4623

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J210504.1+461900 21 05 04.15 +46 19 00.12 11.55 ROSAT
1RXS J210504.1+461857 21 05 04.10 +46 18 57.60 11.56 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CGPS J210345+462439 21 03 45.79 +46 24 39.96 3.15 CGPSNGPCAT
2 NVSS J210418+462127 21 04 18.10 +46 21 27.00 3.28 NVSS
CGPS J210418+462124 21 04 18.19 +46 21 24.84 3.32 CGPSNGPCAT
[WBH2005] G87.663-0.373 21 04 18.19 +46 21 24.84 3.32 WBHGP20CM
WSRTGP 2102+4609 21 04 18.79 +46 21 27.00 3.39 WSRTGP
3 HD 200776 21 03 54.02 +46 19 50.88 3.41 BATTEN
HD 200776 21 03 53.86 +46 19 50.52 3.43 HIC
SAO 50411 21 03 53.88 +46 19 50.16 3.43 SAO
PPM 60904 21 03 53.81 +46 19 50.16 3.44 PPM
BD+45 3384 21 03 53.83 +46 19 50.16 3.44 ACRS
HIP 103968 21 03 53.78 +46 19 49.80 3.44 HIPPARCOS
V1898 Cyg 21 03 53.81 +46 19 49.80 3.44 GCVS
4 CGPS J210356+461859 21 03 56.81 +46 18 59.04 4.11 CGPSNGPCAT
5 WDS J21044+4626 21 04 24.00 +46 25 59.88 4.91 WDS
6 CGPS J210348+461816 21 03 48.00 +46 18 16.92 5.27 CGPSNGPCAT
7 WDS J21046+4627 21 04 36.00 +46 27 00.00 7.17 WDS
WSRTGP 2102+4614 21 04 39.00 +46 26 30.84 7.37 WSRTGP
8 NVSS J210439+462631 21 04 39.70 +46 26 30.84 7.48 NVSS
9 WDS J21037+4616 21 03 42.00 +46 16 00.12 7.77 WDS
10 NVSS J210432+461718 21 04 32.30 +46 17 17.88 7.82 NVSS
11 CGPS J210317+461925 21 03 17.21 +46 19 26.04 8.43 CGPSNGPCAT
12 BD+45 3388 21 04 21.24 +46 31 05.16 8.76 ACRS
BD +45 3388 21 04 21.24 +46 31 05.16 8.77 HIC
HIP 104013 21 04 21.22 +46 31 05.52 8.77 HIPPARCOS
PPM 60912 21 04 21.24 +46 31 05.52 8.77 PPM
WDS J21044+4631 21 04 24.00 +46 31 00.12 8.88 WDS
13 BD+45 3387 21 04 18.10 +46 31 52.32 9.31 ACRS
PPM 60910 21 04 18.22 +46 31 52.68 9.32 PPM
HIP 104007 21 04 18.22 +46 31 52.68 9.33 HIPPARCOS
HD 200830 21 04 18.22 +46 31 53.04 9.33 HIC
14 [WBH2005] G87.721-0.149 21 03 33.70 +46 32 56.04 11.00 WBHGP20CM
TGSSADR J210333.6+463257 21 03 33.60 +46 32 57.12 11.03 GMRTAS150M
15 NSV 13517 21 04 39.50 +46 13 59.88 11.16 GCVSNSVARS
16 NVSS J210331+463319 21 03 31.51 +46 33 19.08 11.52 NVSS
WSRTGP 2102+4622A 21 03 49.20 +46 34 21.00 11.52 WSRTGP
WN 2101.7+4621 21 03 31.30 +46 33 19.08 11.52 WENSS
CGPS J210331+463320 21 03 31.70 +46 33 20.88 11.53 CGPSNGPCAT
WN 2102.1+4622A 21 03 50.21 +46 34 23.88 11.55 WENSS
CGPS J210350+463424 21 03 50.11 +46 34 23.88 11.55 CGPSNGPCAT
17 NVSS J210349+463424 21 03 49.90 +46 34 23.88 11.55 NVSS
TGSSADR J210350.1+463425 21 03 50.21 +46 34 24.96 11.56 GMRTAS150M
QORG J210352.4+463429 21 03 52.39 +46 34 28.92 11.57 QORGCAT
WN 2102.1+4622 21 03 52.51 +46 34 32.88 11.64 WENSS
18 WDS J21032+4631 21 03 12.00 +46 31 00.12 11.67 WDS
VLSSr J210352.9+463437 21 03 52.99 +46 34 36.84 11.69 VLSSR
WSRTGP 2102+4622B 21 03 54.60 +46 34 40.08 11.71 WSRTGP
19 NVSS J210355+463441 21 03 55.70 +46 34 41.16 11.71 NVSS
TGSSADR J210355.3+463441 21 03 55.39 +46 34 41.88 11.73 GMRTAS150M
CGPS J210355+463443 21 03 55.61 +46 34 42.96 11.75 CGPSNGPCAT
WSRTGP 2103+4616 21 05 01.01 +46 28 45.84 11.77 WSRTGP
WN 2102.1+4622B 21 03 55.51 +46 34 45.12 11.78 WENSS
20 AS 455 21 04 45.41 +46 14 00.60 11.79 WACKERLING
21 NVSS J210501+462840 21 05 01.39 +46 28 41.16 11.79 NVSS
22 CGPS J210459+461646 21 04 59.50 +46 16 46.92 11.82 CGPSNGPCAT
CGPS J210501+462841 21 05 01.61 +46 28 41.16 11.82 CGPSNGPCAT
[WBH2005] G87.722-0.135 21 03 30.00 +46 33 33.84 11.85 WBHGP20CM
TGSSADR J210329.9+463334 21 03 30.00 +46 33 34.92 11.87 GMRTAS150M
23 CGPS J210448+463146 21 04 48.31 +46 31 46.92 11.92 CGPSNGPCAT
GB6 J2102+4618 21 02 55.39 +46 18 41.04 12.19 GB6
24 NVSS J210334+463419 21 03 34.30 +46 34 18.84 12.23 NVSS
2101+4606 21 02 54.70 +46 18 41.04 12.29 NORTH6CM
WSRTGP 2101+4606 21 02 53.81 +46 18 38.88 12.46 WSRTGP
[WBH2005] G87.468-0.221 21 02 53.59 +46 18 42.12 12.46 WBHGP20CM
TGSSADR J210253.7+461837 21 02 53.81 +46 18 37.08 12.47 GMRTAS150M
CGPS J210253+461840 21 02 53.59 +46 18 39.96 12.47 CGPSNGPCAT
25 NVSS J210253+461841 21 02 53.59 +46 18 41.04 12.48 NVSS
WN 2101.1+4606 21 02 53.71 +46 18 38.16 12.48 WENSS
TXS 2101+461 21 02 53.50 +46 18 39.96 12.50 TEXAS
VLSSr J210254.1+461820 21 02 54.10 +46 18 20.88 12.51 VLSSR
AMIGPS J210253+461840 21 02 53.30 +46 18 41.04 12.53 AMIGPS16GH
7C 210108.5+460640 21 02 53.40 +46 18 34.92 12.54 GP7C151MHZ
MITG J2102+4618 21 02 53.81 +46 18 14.04 12.61 MITGB6CM
26 SAO 50393 21 02 56.11 +46 16 28.56 13.03 SAO
NSV 13494 21 02 56.11 +46 16 27.84 13.04 GCVSNSVARS
NSV 13494 21 02 56.06 +46 16 27.84 13.04 HIC
PPM 60884 21 02 56.06 +46 16 27.84 13.04 PPM
BD+45 3377 21 02 55.99 +46 16 28.20 13.05 ACRS
HIP 103879 21 02 56.04 +46 16 27.12 13.05 HIPPARCOS
+453377 21 02 55.75 +46 16 24.96 13.11 WACKERLING
27 BD+45 3393 21 04 55.56 +46 32 31.56 13.32 ACRS
PPM 60924 21 04 55.61 +46 32 31.20 13.32 PPM
28 WDS J21051+4615 21 05 06.00 +46 15 00.00 13.74 WDS
29 CGPS J210252+461525 21 02 52.70 +46 15 24.84 14.09 CGPSNGPCAT
30 SAO 50434 21 05 05.35 +46 32 48.48 14.74 SAO
PPM 60932 21 05 05.35 +46 32 50.64 14.76 PPM
BD+45 3395 21 05 05.40 +46 32 50.64 14.77 ACRS

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