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 J1849.4-0117

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1849.4-0117 Swift-XRT detections in the field for 4FGL J1849.4-0117


No detected excesses found.

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 49 54.62 -01 34 06.05 7.97 (1.1 ± 0.4) x 10-3 8 2.686 2.670

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1849.4-0117 Swift-XRT image with known radio, optical and UV sources for 4FGL J1849.4-0117

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
4XMM J184859.6-012152 18 48 59.69 -01 21 52.20 7.63 XMM-NEWTON
4XMMs J184859.6-012151 18 48 59.64 -01 21 51.12 7.63 XMM-NEWTON
1 2CXO J184859.6-012152 18 48 59.62 -01 21 52.20 7.65 CHANDRA
2CXO J184858.7-012131 18 48 58.70 -01 21 32.04 7.68 CHANDRA
4XMMs J184858.6-012132 18 48 58.68 -01 21 32.40 7.69 XMM-NEWTON
2 2CXO J184855.0-012049 18 48 55.08 -01 20 49.56 8.21 CHANDRA
3 2CXO J184852.9-011824 18 48 52.92 -01 18 24.48 8.24 CHANDRA
4XMMs J184852.7-011822 18 48 52.78 -01 18 23.04 8.28 XMM-NEWTON
4XMM J184852.7-011823 18 48 52.75 -01 18 23.76 8.29 XMM-NEWTON
4 4XMMs J184929.6-012642 18 49 29.64 -01 26 42.36 8.82 XMM-NEWTON
4XMM J184929.5-012642 18 49 29.59 -01 26 42.72 8.83 XMM-NEWTON
4XMMs J184850.4-011819 18 48 50.45 -01 18 19.80 8.86 XMM-NEWTON
4XMM J184850.4-011819 18 48 50.42 -01 18 19.80 8.86 XMM-NEWTON
5 2CXO J184850.4-011821 18 48 50.40 -01 18 21.60 8.87 CHANDRA
6 2CXO J184857.3-011158 18 48 57.36 -01 11 58.92 9.28 CHANDRA
X184857.24-011157.6 18 48 57.24 -01 11 57.48 9.32 CHANDRA
7 2CXO J184856.2-012343 18 48 56.23 -01 23 43.80 9.40 CHANDRA
1WGA J1848.9-0111 18 48 56.50 -01 11 59.64 9.44 ROSAT
8 2CXO J184902.1-012531 18 49 02.16 -01 25 31.44 9.63 CHANDRA
4XMMs J184859.7-012519 18 48 59.78 -01 25 19.56 9.85 XMM-NEWTON
9 X184859.74-012527.1 18 48 59.74 -01 25 27.12 9.95 CHANDRA
10 2CXO J184850.5-012307 18 48 50.57 -01 23 07.80 10.23 CHANDRA
11 4XMM J184845.7-012225 18 48 45.74 -01 22 25.32 10.98 XMM-NEWTON
12 2CXO J184854.8-011008 18 48 54.89 -01 10 08.04 10.99 CHANDRA
4XMMs J184845.6-012225 18 48 45.70 -01 22 25.68 11.00 XMM-NEWTON
13 2CXO J184857.2-012642 18 48 57.24 -01 26 42.36 11.32 CHANDRA
14 X184905.11-012807.0 18 49 05.11 -01 28 06.96 11.43 CHANDRA
CXOGSG J184905.1-012807 18 49 05.11 -01 28 07.68 11.43 CHANDRA
2CXO J184905.1-012807 18 49 05.11 -01 28 07.32 11.43 CHANDRA
15 X184850.34-012509.8 18 48 50.35 -01 25 09.84 11.45 CHANDRA
2CXO J184850.3-012509 18 48 50.33 -01 25 09.84 11.45 CHANDRA
CXOGSG J184850.3-012509 18 48 50.33 -01 25 09.84 11.45 CHANDRA
X184850.40-012511.4 18 48 50.40 -01 25 11.28 11.45 CHANDRA
16 2CXO J184902.1-012744 18 49 02.11 -01 27 44.28 11.46 CHANDRA
4XMM J184850.2-012509 18 48 50.28 -01 25 09.84 11.46 XMM-NEWTON
4XMMs J184850.2-012510 18 48 50.26 -01 25 10.56 11.47 XMM-NEWTON
17 X184853.88-012645.3 18 48 53.88 -01 26 45.24 11.90 CHANDRA
2CXO J184853.8-012645 18 48 53.86 -01 26 45.24 11.91 CHANDRA
CXOGSG J184853.8-012645 18 48 53.88 -01 26 45.60 11.91 CHANDRA
X184853.27-012644.6 18 48 53.28 -01 26 44.52 12.00 CHANDRA
CXOGSG J184853.2-012644 18 48 53.26 -01 26 44.88 12.00 CHANDRA
2CXO J184853.2-012644 18 48 53.26 -01 26 44.88 12.00 CHANDRA
18 2CXO J184851.0-010935 18 48 51.10 -01 09 36.00 12.04 CHANDRA
19 X184849.06-012544.1 18 48 49.06 -01 25 44.04 12.06 CHANDRA
2CXO J184849.0-012543 18 48 49.03 -01 25 43.32 12.06 CHANDRA
CXOGSG J184848.9-012544 18 48 48.98 -01 25 44.04 12.07 CHANDRA
4XMM J184855.3-012738 18 48 55.32 -01 27 38.52 12.35 XMM-NEWTON
20 X184855.31-012739.7 18 48 55.32 -01 27 39.60 12.37 CHANDRA
CXOGSG J184855.2-012739 18 48 55.30 -01 27 39.60 12.37 CHANDRA
2CXO J184855.2-012739 18 48 55.30 -01 27 39.60 12.37 CHANDRA
4XMMs J184855.2-012739 18 48 55.27 -01 27 39.60 12.37 XMM-NEWTON
4XMMs J184845.8-012525 18 48 45.89 -01 25 25.68 12.49 XMM-NEWTON
21 CXOGSG J184845.7-012524 18 48 45.70 -01 25 24.60 12.51 CHANDRA
X184845.74-012525.6 18 48 45.74 -01 25 25.68 12.52 CHANDRA
2CXO J184845.6-012524 18 48 45.67 -01 25 24.96 12.52 CHANDRA
22 2CXO J184859.0-010712 18 48 59.06 -01 07 12.72 12.64 CHANDRA
X184859.22-010711.1 18 48 59.23 -01 07 11.28 12.64 CHANDRA
23 2CXO J184849.5-012655 18 48 49.56 -01 26 55.68 12.77 CHANDRA
24 X184855.41-012818.0 18 48 55.42 -01 28 18.12 12.86 CHANDRA
CXOGSG J184855.4-012818 18 48 55.42 -01 28 18.12 12.86 CHANDRA
2CXO J184855.4-012817 18 48 55.39 -01 28 18.12 12.86 CHANDRA
25 2CXO J184905.3-012951 18 49 05.30 -01 29 51.72 12.99 CHANDRA
2CXO J184855.3-012834 18 48 55.37 -01 28 34.68 13.09 CHANDRA
26 2CXO J184901.4-012930 18 49 01.39 -01 29 30.84 13.09 CHANDRA
X184901.41-012931.0 18 49 01.42 -01 29 30.84 13.09 CHANDRA
CXOGSG J184901.4-012931 18 49 01.39 -01 29 31.56 13.10 CHANDRA
27 2CXO J184858.2-012918 18 48 58.27 -01 29 18.24 13.30 CHANDRA
28 X184840.23-012450.4 18 48 40.22 -01 24 50.40 13.33 CHANDRA
2CXO J184840.1-012450 18 48 40.18 -01 24 50.04 13.34 CHANDRA
CXOGSG J184840.1-012450 18 48 40.15 -01 24 50.76 13.35 CHANDRA
2CXO J184901.4-012955 18 49 01.44 -01 29 55.32 13.45 CHANDRA
4XMMs J184854.8-012912 18 48 54.89 -01 29 12.12 13.67 XMM-NEWTON
29 CXOGSG J184853.7-012924 18 48 53.78 -01 29 24.72 14.00 CHANDRA
X184853.77-012924.7 18 48 53.76 -01 29 24.72 14.00 CHANDRA
2CXO J184852.9-012937 18 48 52.97 -01 29 37.32 14.29 CHANDRA
2CXO J184852.9-012939 18 48 52.92 -01 29 39.48 14.33 CHANDRA
30 4XMMs J184846.8-012836 18 48 46.87 -01 28 36.48 14.45 XMM-NEWTON
31 2CXO J184852.0-012939 18 48 52.01 -01 29 39.48 14.46 CHANDRA
X184852.01-012939.5 18 48 52.01 -01 29 39.48 14.46 CHANDRA
CXOGSG J184852.0-012939 18 48 52.03 -01 29 39.84 14.46 CHANDRA
2CXO J184850.2-012928 18 48 50.26 -01 29 28.68 14.57 CHANDRA
X184850.26-012928.7 18 48 50.26 -01 29 28.68 14.57 CHANDRA
CXOGSG J184850.2-012928 18 48 50.26 -01 29 28.68 14.57 CHANDRA
AX J184848-0129 18 48 48.48 -01 29 09.60 14.60 ASCA
32 X184849.80-012929.9 18 48 49.80 -01 29 29.76 14.66 CHANDRA
2CXO J184849.7-012930 18 48 49.80 -01 29 30.12 14.66 CHANDRA
CXOGSG J184849.8-012930 18 48 49.80 -01 29 30.12 14.66 CHANDRA
33 AX J1848.8-0129 18 48 48.00 -01 29 12.12 14.71 INTEGRAL
CXOGSG J184849.5-012940 18 48 49.51 -01 29 39.84 14.84 CHANDRA
X184849.51-012940.1 18 48 49.51 -01 29 40.20 14.84 CHANDRA
2CXO J184849.4-012940 18 48 49.51 -01 29 40.20 14.84 CHANDRA
CXOGSG J184849.9-012949 18 48 49.99 -01 29 48.84 14.89 CHANDRA
X184849.95-012948.8 18 48 49.94 -01 29 48.84 14.89 CHANDRA
2CXO J184849.9-012948 18 48 49.94 -01 29 48.84 14.89 CHANDRA
X184850.16-012953.2 18 48 50.16 -01 29 53.16 14.91 CHANDRA
CXOGSG J184850.1-012953 18 48 50.16 -01 29 53.16 14.91 CHANDRA
2CXO J184850.1-012953 18 48 50.16 -01 29 53.16 14.92 CHANDRA
2CXO J184849.5-012947 18 48 49.56 -01 29 47.40 14.93 CHANDRA
CXOGSG J184849.5-012947 18 48 49.54 -01 29 47.76 14.93 CHANDRA
X184849.55-012947.7 18 48 49.56 -01 29 47.76 14.93 CHANDRA
4XMMs J184849.5-012950 18 48 49.54 -01 29 50.64 14.98 XMM-NEWTON
4XMM J184849.5-012951 18 48 49.54 -01 29 51.00 14.98 XMM-NEWTON
34 X184841.94-012821.1 18 48 41.95 -01 28 21.00 15.13 CHANDRA
35 2CXO J184847.9-012943 18 48 47.93 -01 29 43.80 15.13 CHANDRA
2CXO J184841.9-012821 18 48 41.90 -01 28 21.36 15.14 CHANDRA
36 X184843.64-012852.8 18 48 43.63 -01 28 52.68 15.20 CHANDRA
CXOGSG J184843.6-012853 18 48 43.63 -01 28 53.04 15.21 CHANDRA
2CXO J184843.6-012852 18 48 43.63 -01 28 52.68 15.21 CHANDRA
37 CXOGSG J184845.0-012939 18 48 45.07 -01 29 39.84 15.54 CHANDRA
2CXO J184845.0-012939 18 48 45.10 -01 29 39.84 15.54 CHANDRA
CXOGSG J184840.9-012844 18 48 40.92 -01 28 44.40 15.59 CHANDRA
X184840.90-012844.4 18 48 40.90 -01 28 44.40 15.59 CHANDRA
2CXO J184840.8-012844 18 48 40.90 -01 28 44.76 15.59 CHANDRA
38 2CXO J184841.1-012901 18 48 41.16 -01 29 01.68 15.74 CHANDRA
CXOGSG J184840.5-012922 18 48 40.56 -01 29 22.20 16.09 CHANDRA
2CXO J184840.5-012922 18 48 40.56 -01 29 22.20 16.09 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J184932-011751 18 49 32.71 -01 17 52.08 1.72 NVSS
2 MAGPIS Discrete G31.56982-0.12 18 49 24.10 -01 16 10.92 1.81 MAGPIS
MAGPIS Discrete G31.56802-0.12 18 49 23.21 -01 16 10.92 1.88 MAGPIS
[WBH2005] G31.568-0.122 18 49 23.21 -01 16 09.84 1.88 WBHGP6CM
3 NVSS J184920-011936 18 49 20.11 -01 19 36.84 2.21 NVSS
MAGPIS Diffuse G31.5417-0.1056 18 49 16.80 -01 17 15.00 2.36 MAGPIS
4 NVSS J184916-011736 18 49 16.01 -01 17 35.88 2.47 NVSS
QORG J184918.0-012055 18 49 18.00 -01 20 54.96 3.57 QORGCAT
5 NVSS J184917-012054 18 49 17.81 -01 20 53.88 3.59 NVSS
6 MAGPIS Discrete G31.62424-0.14 18 49 33.70 -01 13 44.04 4.63 MAGPIS
7 NVSS J184905-011913 18 49 05.81 -01 19 13.08 5.18 NVSS
8 [WBH2005] G31.585-0.064 18 49 12.50 -01 13 39.00 5.43 WBHGP6CM
MAGPIS Discrete G31.58534-0.06 18 49 12.50 -01 13 39.00 5.43 MAGPIS
9 GPA 031.51-0.23 18 49 40.51 -01 22 12.00 5.62 GPA
10 MAGPIS Discrete G31.48344-0.21 18 49 34.30 -01 23 18.96 5.77 MAGPIS
11 NVSS J184950-011720 18 49 50.59 -01 17 21.12 6.22 NVSS
12 [WBH2005] G31.454-0.088 18 49 03.29 -01 21 19.08 6.57 WBHGP6CM
13 MAGPIS Discrete G31.42689-0.13 18 49 11.30 -01 24 11.16 7.22 MAGPIS
[WBH2005] G31.426-0.139 18 49 11.30 -01 24 11.88 7.25 WBHGP6CM
14 MAGPIS Diffuse G31.6125-0.2389 18 49 55.39 -01 16 24.96 7.53 MAGPIS
15 [WBH2005] G31.614-0.039 18 49 10.39 -01 11 26.88 7.54 WBHGP6CM
MAGPIS Discrete G31.61378-0.03 18 49 10.30 -01 11 26.88 7.55 MAGPIS
MAGPIS Discrete G31.42150-0.13 18 49 10.51 -01 24 25.92 7.55 MAGPIS
16 BG 1847-01 18 49 56.50 -01 18 29.16 7.68 DIXON
17 NVSS J184957-011707 18 49 57.91 -01 17 07.08 8.05 NVSS
18 NVSS J184915-012542 18 49 15.70 -01 25 42.96 8.18 NVSS
QORG J184902.9-011035 18 49 02.90 -01 10 35.04 9.32 QORGCAT
19 NVSS J184902-011034 18 49 02.71 -01 10 35.04 9.36 NVSS
20 QORG J184856.6-011159 18 48 56.59 -01 11 58.92 9.43 QORGCAT
21 WDS J18488-0120 18 48 48.00 -01 19 59.88 9.68 WDS
BK 031.4-00.2 18 49 33.50 -01 27 29.88 9.76 DIXON
22 NVSS J184934-012740 18 49 34.80 -01 27 41.04 10.00 NVSS
23 NVSS J184907-010857 18 49 07.70 -01 08 57.12 10.06 NVSS
ADG031.4-00.3 18 49 36.50 -01 27 47.88 10.22 DIXON
24 NVSS J184843-011855 18 48 43.90 -01 18 55.08 10.52 NVSS
25 NVSS J184901-010856 18 49 01.70 -01 08 56.04 10.84 NVSS
26 NVSS J185003-012328 18 50 03.19 -01 23 27.96 10.85 NVSS
27 NVSS J185009-011738 18 50 09.70 -01 17 39.12 10.96 NVSS
28 NVSS J184855-012559 18 48 55.70 -01 25 59.16 11.03 NVSS
29 [WBH2005] G31.403-0.261 18 49 34.80 -01 28 45.84 11.06 WBHGP6CM
30 NVSS J184933-012907 18 49 33.19 -01 29 07.08 11.33 NVSS
MAGPIS Diffuse G31.4000-0.2667 18 49 33.41 -01 29 11.04 11.40 MAGPIS
[WBH2005] G31.394-0.259 18 49 33.31 -01 29 12.12 11.43 WBHGP6CM
[WBH2005] G31.394-0.259 18 49 33.41 -01 29 12.84 11.43 WBHGP20CM
NVSS J184934-012909 18 49 34.49 -01 29 09.96 11.44 NVSS
31 [SPT2015] ATCA J1849-0126 18 49 58.39 -01 26 03.84 11.51 FER2FUSRID
32 NVSS J184943-012836 18 49 43.80 -01 28 36.84 11.58 NVSS
33 V866 Aql 18 49 25.01 -01 06 19.80 11.61 GCVS
34 NVSS J185005-011152 18 50 05.90 -01 11 52.08 11.69 NVSS
35 NVSS J184928-010615 18 49 28.70 -01 06 15.12 11.70 NVSS
36 [WBH2005] G31.389-0.264 18 49 34.01 -01 29 35.88 11.84 WBHGP6CM
37 NVSS J184949-012820 18 49 49.30 -01 28 21.00 11.94 NVSS
38 NVSS J184839-012023 18 48 39.00 -01 20 22.92 11.95 NVSS
39 NVSS J185013-011841 18 50 13.70 -01 18 42.12 11.97 NVSS
40 NVSS J184843-012356 18 48 43.90 -01 23 57.12 12.08 NVSS
41 MAGPIS Diffuse G31.3708-0.0361 18 48 45.19 -01 24 39.96 12.18 MAGPIS
42 NVSS J185007-012409 18 50 07.70 -01 24 10.08 12.18 NVSS
43 MAGPIS Discrete G31.58023-0.34 18 50 12.31 -01 21 38.88 12.19 MAGPIS
[WBH2005] G31.473-0.341 18 49 59.40 -01 27 12.96 12.51 WBHGP6CM
[SPT2015] ATCA J1849-0127 18 50 00.00 -01 27 11.88 12.59 FER2FUSRID
[WBH2005] G31.476-0.343 18 50 00.19 -01 27 07.92 12.60 WBHGP6CM
[WBH2005] G31.470-0.341 18 49 59.21 -01 27 24.12 12.61 WBHGP6CM
[WBH2005] G31.476-0.345 18 50 00.60 -01 27 10.08 12.67 WBHGP6CM
MAGPIS Diffuse G31.4667-0.3444 18 50 00.70 -01 27 11.88 12.71 MAGPIS
[PME2013] J1849-0127 18 49 59.81 -01 27 29.16 12.78 AT2FGLUS
[SPT2015] ATCA J1850-0127 18 50 00.10 -01 27 25.92 12.80 FER2FUSRID
44 NVSS J184959-012730 18 49 59.90 -01 27 29.88 12.80 NVSS
45 NVSS J184950-010622 18 49 50.30 -01 06 21.96 13.08 NVSS
46 [WBH2005] G31.658+0.044 18 48 57.60 -01 06 50.04 13.16 WBHGP20CM
47 [WBH2005] G31.460-0.347 18 49 59.40 -01 28 05.88 13.18 WBHGP6CM
48 [WBH2005] G31.469-0.353 18 50 01.61 -01 27 47.16 13.29 WBHGP6CM
49 [WBH2005] G31.581+0.075 18 48 42.50 -01 10 05.16 13.38 WBHGP6CM
MAGPIS Discrete G31.58136+0.07 18 48 42.50 -01 10 05.16 13.38 MAGPIS
50 NVSS J185005-010829 18 50 05.40 -01 08 29.04 13.68 NVSS
51 NVSS J185012-012535 18 50 12.31 -01 25 36.12 13.90 NVSS
52 [SPT2015] ATCA J1850-0129 18 50 00.00 -01 29 34.08 14.43 FER2FUSRID
53 NVSS J184850-012955 18 48 51.00 -01 29 56.04 14.83 NVSS
54 NVSS J184838-010858 18 48 38.40 -01 08 57.84 14.88 NVSS
GLIMPSE01 18 48 49.70 -01 29 49.92 14.94 GLOBCLUST

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