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 J1854.7+0153

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1854.7+0153 Swift-XRT detections in the field for 4FGL J1854.7+0153

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 54 36.53 +01 53 12.48 4.47 (7.8 ± 1.1) x 10-3 71 7.196 7.052
2 18 54 30.88 +01 53 51.82 5.24 (2.8 ± 0.7) x 10-3 28 4.262 3.917
3 18 55 17.79 +01 53 23.15 5.53 (1.8 ± 0.6) x 10-3 20 3.092 3.050

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 18 54 59.95 +01 59 24.47 6.04 (1.5 ± 0.5) x 10-3 17 2.895 2.925

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1854.7+0153 Swift-XRT image with known radio, optical and UV sources for 4FGL J1854.7+0153

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1855.2+0149 18 55 15.31 +01 49 04.08 8.44 ROSAT
2 XMMSL2 J185526.0+015706 18 55 25.97 +01 57 06.12 10.38 XMM-NEWTON
3 CXOGSG J185521.2+014146 18 55 21.24 +01 41 46.68 14.63 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J185443+015246 18 54 43.70 +01 52 46.92 1.14 NVSS
2 NVSS J185454+015409 18 54 54.70 +01 54 09.00 2.03 NVSS
3 PPM 166783 18 54 36.43 +01 53 14.64 2.62 PPM
BD+01 3815 18 54 36.43 +01 53 14.28 2.62 ACRS
HIP 92807 18 54 36.41 +01 53 15.00 2.62 HIPPARCOS
SAO 124030 18 54 36.41 +01 53 14.64 2.63 SAO
HD 175294 18 54 36.41 +01 53 13.92 2.63 HIC
4 NVSS J185434+015323 18 54 34.39 +01 53 22.92 3.12 NVSS
5 PPM 166780 18 54 30.60 +01 53 51.00 4.06 PPM
SAO 124028 18 54 30.60 +01 53 50.28 4.06 SAO
BD+01 3814 18 54 30.60 +01 53 49.92 4.06 ACRS
HIP 92794 18 54 30.60 +01 53 51.36 4.06 HIPPARCOS
HD 175272 18 54 30.55 +01 53 49.92 4.07 HIC
WDS J18545+0154 AC 18 54 30.00 +01 53 60.00 4.22 WDS
WDS J18545+0154 AB 18 54 30.00 +01 53 60.00 4.22 WDS
WDS J18545+0154 CD 18 54 30.00 +01 53 60.00 4.22 WDS
WDS J18545+0154 BD 18 54 30.00 +01 53 60.00 4.22 WDS
6 TGSSADR J185441.2+015758 18 54 41.21 +01 57 57.96 4.58 GMRTAS150M
[WBH2005] G35.053+0.174 18 54 41.30 +01 58 00.84 4.62 WBHGP6CM
7 [WBH2005] G34.974+0.214 18 54 24.19 +01 54 55.08 5.81 WBHGP6CM
8 NVSS J185514+015334 18 55 13.99 +01 53 35.16 6.80 NVSS
9 QORG J185443.5+014634 18 54 43.51 +01 46 33.96 7.09 QORGCAT
10 NVSS J185511+015012 18 55 11.81 +01 50 12.12 7.11 NVSS
11 GPA 034.89+0.03 18 54 53.81 +01 45 33.12 8.25 GPA
12 GB6 J1855+0146 18 55 03.10 +01 46 22.08 8.31 GB6
13 NVSS J185511+014725 18 55 11.11 +01 47 25.08 8.67 NVSS
14 NVSS J185439+014441 18 54 39.10 +01 44 40.92 9.13 NVSS
15 NVSS J185412+014934 18 54 12.91 +01 49 33.96 9.39 NVSS
16 NVSS J185503+014456 18 55 03.50 +01 44 56.04 9.62 NVSS
17 PGCC G34.93+0.26 18 54 08.21 +01 53 40.92 9.65 PLANCKGCC
18 QORG J185454.2+014407 18 54 54.19 +01 44 07.08 9.67 QORGCAT
[WBH2005] G34.894-0.011 18 55 03.50 +01 44 30.12 10.02 WBHGP6CM
19 NVSS J185511+014519 18 55 11.81 +01 45 20.16 10.37 NVSS
20 [WBH2005] G34.994-0.053 18 55 23.50 +01 48 39.96 10.41 WBHGP6CM
21 [WBH2005] G35.166+0.072 18 55 15.50 +02 01 15.96 10.49 WBHGP6CM
22 NVSS J185431+020327 18 54 31.99 +02 03 27.00 10.52 NVSS
23 NVSS J185437+020448 18 54 37.80 +02 04 48.00 11.42 NVSS
24 NVSS J185422+020324 18 54 22.80 +02 03 24.84 11.49 NVSS
25 NVSS J185436+014202 18 54 36.10 +01 42 02.88 11.88 NVSS
26 NVSS J185400+015107 18 54 00.29 +01 51 06.84 11.88 NVSS
27 GB6 J1855+0142 18 55 02.81 +01 42 18.00 11.99 GB6
28 NK1.45 18 55 19.90 +01 44 09.96 12.54 DIXON
29 NVSS J185532+015840 18 55 32.71 +01 58 41.16 12.54 NVSS
GB6 J1854+0200 18 54 04.30 +02 00 47.88 12.83 GB6
30 NVSS J185526+020200 18 55 26.40 +02 02 00.96 12.97 NVSS
31 NVSS J185403+020046 18 54 03.10 +02 00 47.16 13.07 NVSS
32 NVSS J185407+020239 18 54 07.80 +02 02 39.84 13.31 NVSS
33 NVSS J185414+014241 18 54 14.90 +01 42 41.04 13.52 NVSS
[WBH2005] G34.775+0.156 18 54 14.71 +01 42 42.84 13.54 WBHGP6CM
34 [WBH2005] G35.024+0.350 18 54 00.50 +02 01 18.12 13.90 WBHGP6CM
35 NVSS J185405+014310 18 54 05.50 +01 43 10.92 14.67 NVSS
36 NVSS J185529+014203 18 55 29.40 +01 42 02.88 15.71 NVSS
37 NVSS J185401+014211 18 54 01.39 +01 42 11.16 16.10 NVSS

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