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 J1900.7+0426

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1900.7+0426 Swift-XRT detections in the field for 4FGL J1900.7+0426

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 01 19.47 +04 35 13.72 6.21 (1.5 ± 0.4) x 10-3 18 3.385 3.375

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 00 46.29 +04 35 59.36 5.96 (1.2 ± 0.4) x 10-3 16 3.127 2.997

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1900.7+0426 Swift-XRT image with known radio, optical and UV sources for 4FGL J1900.7+0426

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J190038.6+042719 19 00 38.64 +04 27 19.80 2.05 XMM-NEWTON
2 4XMM J190036.3+042740 19 00 36.31 +04 27 40.68 2.72 XMM-NEWTON
3 4XMM J190057.1+042639 19 00 57.12 +04 26 39.12 2.75 XMM-NEWTON
4 4XMM J190059.8+042514 19 00 59.83 +04 25 14.16 3.64 XMM-NEWTON
5 4XMM J190027.6+042617 19 00 27.70 +04 26 17.52 4.60 XMM-NEWTON
6 4XMM J190058.5+043005 19 00 58.54 +04 30 06.12 4.75 XMM-NEWTON
7 4XMM J190032.9+042242 19 00 32.95 +04 22 42.96 5.00 XMM-NEWTON
8 4XMM J190110.4+042643 19 01 10.44 +04 26 43.44 6.06 XMM-NEWTON
9 4XMM J190111.7+043106 19 01 11.76 +04 31 06.96 7.89 XMM-NEWTON
10 4XMM J190031.5+043401 19 00 31.54 +04 34 01.56 8.37 XMM-NEWTON
11 4XMM J190049.7+043459 19 00 49.75 +04 34 59.16 8.54 XMM-NEWTON
12 4XMM J190122.7+042456 19 01 22.73 +04 24 56.88 9.25 XMM-NEWTON
13 4XMM J190118.1+043120 19 01 18.19 +04 31 20.64 9.35 XMM-NEWTON
2RXS J190045.8+043554 19 00 45.82 +04 35 54.24 9.41 ROSAT
1RXS J190045.8+043555 19 00 45.79 +04 35 54.96 9.43 ROSAT
14 4XMM J190046.2+043557 19 00 46.25 +04 35 57.84 9.47 XMM-NEWTON
15 AX J1900.1+0427 19 00 07.99 +04 27 36.00 9.57 INTEGRAL
AX J190007+0427 19 00 07.68 +04 27 36.00 9.65 ASCA
16 4XMM J190122.7+042124 19 01 22.78 +04 21 24.84 10.45 XMM-NEWTON
17 4XMM J190107.8+043619 19 01 07.82 +04 36 19.44 11.22 XMM-NEWTON
18 4XMM J190129.3+043029 19 01 29.30 +04 30 29.52 11.48 XMM-NEWTON
19 IGR J19015+0421 19 01 28.80 +04 21 50.04 11.61 INTEGRAL
20 4XMM J190133.4+042827 19 01 33.43 +04 28 27.48 11.96 XMM-NEWTON
21 4XMM J190110.4+041603 19 01 10.49 +04 16 03.72 12.07 XMM-NEWTON
22 4XMM J190117.3+041637 19 01 17.38 +04 16 36.84 12.58 XMM-NEWTON
23 4XMM J190131.1+043523 19 01 31.15 +04 35 24.00 14.33 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [WBH2005] G37.972-0.096 19 00 59.59 +04 26 26.16 3.36 WBHGP6CM
[WBH2005] G37.973-0.096 19 00 59.71 +04 26 26.88 3.37 WBHGP20CM
[SPT2015] VLA J1900+0426 19 00 59.71 +04 26 26.16 3.38 FER2FUSRID
2 NVSS J190040+042948 19 00 40.70 +04 29 48.84 3.58 NVSS
3 NVSS J190045+042219 19 00 45.41 +04 22 18.84 4.18 NVSS
4 NVSS J190104+042536 19 01 04.01 +04 25 36.84 4.54 NVSS
5 PGCC G37.87-0.07 19 00 43.20 +04 21 39.96 4.88 PLANCKGCC
6 AMWW 55 19 00 34.90 +04 22 17.04 5.06 DIXON
7 571-127 19 00 30.79 +04 23 04.20 5.13 NLTT
[WBH2005] G38.037-0.045 19 00 55.70 +04 31 17.04 5.36 WBHGP6CM
[WBH2005] G38.038-0.042 19 00 55.20 +04 31 26.04 5.44 WBHGP6CM
8 NVSS J190043+042105 19 00 43.01 +04 21 06.12 5.45 NVSS
[WBH2005] G38.038-0.047 19 00 56.30 +04 31 18.84 5.46 WBHGP6CM
[SPT2015] ATCA J1900+0431 19 00 55.70 +04 31 23.88 5.46 FER2FUSRID
9 NVSS J190101+042234 19 01 01.70 +04 22 35.04 5.52 NVSS
[WBH2005] G38.040-0.046 19 00 56.30 +04 31 24.96 5.54 WBHGP6CM
[PME2013] J1900+0431 19 00 55.80 +04 31 28.92 5.55 AT2FGLUS
10 NVSS J190055+043131 19 00 55.90 +04 31 32.16 5.60 NVSS
[WBH2005] G38.041-0.043 19 00 55.90 +04 31 32.88 5.61 WBHGP6CM
[WBH2005] G38.041-0.045 19 00 56.30 +04 31 31.08 5.63 WBHGP6CM
[WBH2005] G38.041-0.047 19 00 56.81 +04 31 27.84 5.64 WBHGP6CM
11 [SPT2015] VLA J1901+0424 19 01 06.60 +04 24 05.04 5.65 FER2FUSRID
[WBH2005] G38.043-0.048 19 00 57.10 +04 31 32.88 5.75 WBHGP6CM
12 NVSS J190057+042116 19 00 57.31 +04 21 16.92 5.91 NVSS
[SPT2015] ATCA J1900+043A 19 00 56.30 +04 31 50.88 5.94 FER2FUSRID
13 NVSS J190022+042652 19 00 22.10 +04 26 52.08 6.00 NVSS
[WBH2005] G38.050-0.037 19 00 55.51 +04 32 11.04 6.15 WBHGP6CM
[SPT2015] ATCA J1900+0432 19 00 55.99 +04 32 09.96 6.18 FER2FUSRID
14 NVSS J190025+042255 19 00 25.80 +04 22 55.92 6.20 NVSS
15 NVSS J190056+043215 19 00 56.50 +04 32 15.00 6.32 NVSS
16 HR 27 19 01 05.69 +04 30 55.08 6.59 DIXON
17 GB6 J1900+0432 19 00 59.30 +04 32 17.16 6.66 GB6
18 BG 1857+04 19 00 24.10 +04 22 15.96 6.93 DIXON
QORG J190055.3+041950 19 00 55.30 +04 19 50.16 7.04 QORGCAT
19 NVSS J190055+041951 19 00 55.61 +04 19 50.88 7.05 NVSS
20 [WBH2005] G38.015+0.052 19 00 32.50 +04 32 48.12 7.16 WBHGP6CM
21 NVSS J190018+042815 19 00 18.19 +04 28 14.88 7.18 NVSS
22 [WBH2005] G37.981-0.163 19 01 15.00 +04 25 03.00 7.33 WBHGP6CM
[WBH2005] G38.013+0.058 19 00 31.01 +04 32 49.92 7.39 WBHGP6CM
23 DWC038.1-00.1 19 01 05.69 +04 32 18.96 7.60 DIXON
24 [WBH2005] G38.016+0.061 19 00 30.79 +04 33 06.12 7.63 WBHGP6CM
25 PPM 167000 19 01 14.47 +04 23 15.00 7.77 PPM
BD+04 3946 19 01 14.47 +04 23 14.64 7.77 ACRS
26 NVSS J190112+042154 19 01 12.00 +04 21 55.08 7.91 NVSS
27 NVSS J190054+043409 19 00 54.60 +04 34 09.12 7.94 NVSS
28 [WBH2005] G38.050+0.038 19 00 39.50 +04 34 17.04 7.96 WBHGP6CM
29 [WBH2005] G38.050-0.131 19 01 15.60 +04 29 35.88 7.97 WBHGP6CM
[SPT2015] VLA J1901+0429 19 01 15.60 +04 29 36.96 7.97 FER2FUSRID
[WBH2005] G38.050-0.131 19 01 15.60 +04 29 36.96 7.98 WBHGP20CM
30 NVSS J190013+042739 19 00 13.51 +04 27 39.96 8.21 NVSS
31 NVSS J190109+042037 19 01 09.31 +04 20 36.96 8.24 NVSS
32 NVSS J190119+042555 19 01 19.20 +04 25 54.84 8.26 NVSS
33 NVSS J190010+042553 19 00 10.01 +04 25 54.12 9.03 NVSS
34 NVSS J190121+042421 19 01 21.60 +04 24 20.88 9.10 NVSS
35 NVSS J190020+041955 19 00 20.59 +04 19 54.84 9.16 NVSS
36 ADG038.1-00.1 19 01 14.71 +04 32 30.84 9.33 DIXON
37 PPM 166981 19 00 46.27 +04 35 57.84 9.47 PPM
BD+04 3943 19 00 46.27 +04 35 57.84 9.48 ACRS
QORG J190044.9+043558 19 00 44.90 +04 35 57.84 9.48 QORGCAT
SAO 124149 19 00 46.30 +04 35 58.92 9.49 SAO
38 NVSS J190124+042545 19 01 24.19 +04 25 45.12 9.51 NVSS
39 NVSS J190123+042254 19 01 23.50 +04 22 54.12 9.98 NVSS
40 PCCS2 030 G037.88-00.20 19 01 12.00 +04 18 16.92 10.43 PCCS030GHZ
41 NVSS J190055+041555 19 00 55.70 +04 15 56.16 10.83 NVSS
42 BG 1858+04 19 00 59.21 +04 37 18.12 11.30 DIXON
43 [WBH2005] G38.059+0.108 19 00 25.30 +04 36 38.88 11.41 WBHGP6CM
44 NVSS J190005+042115 19 00 04.99 +04 21 15.12 11.51 NVSS
45 PPM 166967 19 00 14.59 +04 17 46.32 11.74 PPM
BD+04 3940 19 00 14.57 +04 17 46.68 11.74 ACRS
46 [WBH2005] G37.759-0.100 19 00 37.01 +04 14 57.84 11.75 WBHGP20CM
47 NVSS J185958+042644 18 59 58.70 +04 26 44.16 11.83 NVSS
48 NVSS J190006+041804 19 00 06.60 +04 18 03.96 12.96 NVSS
49 NVSS J190014+043711 19 00 14.50 +04 37 12.00 13.29 NVSS
50 NVSS J190131+043334 19 01 31.30 +04 33 33.84 13.29 NVSS
51 NVSS J190016+043754 19 00 16.80 +04 37 54.12 13.55 NVSS
52 NVSS J190001+041841 19 00 01.20 +04 18 41.04 13.65 NVSS
53 [WBH2005] G37.903-0.275 19 01 30.29 +04 17 49.92 14.00 WBHGP6CM
54 PSR J1901+0435 19 01 32.21 +04 35 22.92 14.52 ATNFPULSAR
55 PCCS2 044 G037.85-00.28 19 01 25.20 +04 15 15.12 14.87 PCCS044GHZ
BD+04 3948 19 01 29.18 +04 15 28.08 15.39 ACRS
PPM 167008 19 01 29.23 +04 15 28.08 15.39 PPM
SAO 124162 19 01 29.18 +04 15 27.00 15.40 SAO
56 SAO 124136 18 59 58.97 +04 36 38.88 15.54 SAO
HD 176400 18 59 58.92 +04 36 38.52 15.54 HIC
HIP 93274 18 59 58.92 +04 36 39.24 15.54 HIPPARCOS
PPM 166957 18 59 58.92 +04 36 38.88 15.54 PPM
BD+04 3939 18 59 58.92 +04 36 39.24 15.55 ACRS
57 GPA 037.87-0.29 19 01 30.41 +04 15 30.96 15.56 GPA

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