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 J1902.2+0448

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1902.2+0448 Swift-XRT detections in the field for 4FGL J1902.2+0448

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 02 20.61 +04 46 35.99 5.49 (7 ± 2) x 10-3 25 4.389 4.294

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 19 01 51.23 +04 50 06.62 7.48 (1.8 ± 0.8) x 10-3 7 2.293 2.226

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1902.2+0448 Swift-XRT image with known radio, optical and UV sources for 4FGL J1902.2+0448

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J190223.4+044913 19 02 23.47 +04 49 13.80 1.68 XMM-NEWTON
2 4XMM J190209.1+045224 19 02 09.17 +04 52 23.88 4.42 XMM-NEWTON
3 4XMM J190153.6+044816 19 01 53.71 +04 48 16.20 5.92 XMM-NEWTON
4 4XMM J190151.6+044922 19 01 51.65 +04 49 22.80 6.48 XMM-NEWTON
5 4XMM J190151.7+045007 19 01 51.72 +04 50 07.80 6.61 XMM-NEWTON
6 4XMM J190147.1+044910 19 01 47.16 +04 49 10.56 7.58 XMM-NEWTON
7 4XMM J190219.2+045741 19 02 19.27 +04 57 41.04 9.21 XMM-NEWTON
8 4XMM J190156.5+045748 19 01 56.59 +04 57 48.96 10.68 XMM-NEWTON
9 4XMM J190134.3+045042 19 01 34.32 +04 50 42.36 10.96 XMM-NEWTON
10 4XMM J190147.4+045649 19 01 47.40 +04 56 49.92 11.21 XMM-NEWTON
11 4XMM J190137.8+045712 19 01 37.80 +04 57 12.60 13.17 XMM-NEWTON
12 4XMM J190144.5+045914 19 01 44.57 +04 59 15.00 13.52 XMM-NEWTON
AX J190144+0459 19 01 44.40 +04 59 20.40 13.62 ASCA
AX J1901.7+0459 19 01 43.99 +04 59 17.88 13.65 INTEGRAL

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 167037 19 02 20.45 +04 46 38.28 2.00 PPM
BD+04 3956 19 02 20.50 +04 46 37.56 2.01 ACRS
2 NVSS J190224+044711 19 02 24.00 +04 47 12.12 2.10 NVSS
3 NVSS J190231+044723 19 02 31.51 +04 47 22.92 3.68 NVSS
4 NVSS J190229+045102 19 02 29.30 +04 51 02.16 3.91 NVSS
5 NVSS J190223+045251 19 02 23.81 +04 52 50.88 4.65 NVSS
6 NVSS J190216+045344 19 02 16.70 +04 53 44.16 5.26 NVSS
7 BD+04 3954 19 01 51.77 +04 50 07.80 6.60 ACRS
PPM 167022 19 01 51.74 +04 50 07.80 6.61 PPM
SAO 124173 19 01 51.72 +04 50 08.16 6.61 SAO
8 NVSS J190150+044540 19 01 50.11 +04 45 41.04 7.35 NVSS
9 NVSS J190154+044306 19 01 54.60 +04 43 06.96 7.83 NVSS
10 GB6 J1901+0442 19 01 55.01 +04 42 37.08 8.10 GB6
11 [WBH2005] G38.594-0.195 19 02 29.40 +04 56 53.16 8.90 WBHGP6CM
12 NVSS J190209+045744 19 02 09.91 +04 57 43.92 9.44 NVSS
13 NSV 11663 19 01 47.81 +04 54 45.00 9.68 GCVSNSVARS
14 NVSS J190253+044355 19 02 53.30 +04 43 54.84 10.03 NVSS
15 DWC038.3-00.1 19 01 44.50 +04 42 21.96 10.23 DIXON
16 NVSS J190252+044256 19 02 52.10 +04 42 56.16 10.27 NVSS
17 NVSS J190138+044459 19 01 38.50 +04 45 00.00 10.31 NVSS
18 PGCC G38.40-0.05 19 01 36.60 +04 50 45.96 10.42 PLANCKGCC
19 GB6 J1901+0456 19 01 48.60 +04 56 44.16 10.94 GB6
20 PCCS2 044 G038.33-00.07 19 01 32.30 +04 46 14.88 11.46 PCCS044GHZ
21 NVSS J190133+044426 19 01 33.91 +04 44 26.16 11.56 NVSS
[WBH2005] G38.646-0.226 19 02 41.81 +04 58 49.08 11.98 WBHGP6CM
22 NVSS J190241+045850 19 02 41.81 +04 58 50.16 11.99 NVSS
23 HR 28 19 01 35.50 +04 41 15.00 12.70 DIXON
24 [WBH2005] G38.660-0.239 19 02 46.01 +04 59 12.12 12.87 WBHGP6CM
25 NVSS J190257+044010 19 02 57.10 +04 40 09.84 12.91 NVSS
26 GPA 038.27-0.08 19 01 29.50 +04 42 41.04 13.28 GPA
27 WDS J19030+0440 19 03 00.00 +04 40 00.12 13.58 WDS
28 [WBH2005] G38.689-0.267 19 02 55.10 +04 59 58.92 14.85 WBHGP6CM
[WBH2005] G38.695-0.272 19 02 56.90 +05 00 09.00 15.26 WBHGP6CM

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