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 J1842.2-0328

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1842.2-0328 Swift-XRT detections in the field for 4FGL J1842.2-0328


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 42 54.43 -03 27 28.97 5.70 (1.1 ± 0.5) x 10-3 20 2.724 2.288
2 18 42 13.07 -03 31 30.09 5.31 (1.1 ± 0.5) x 10-3 22 2.416 2.249
3 18 41 45.96 -03 34 18.62 6.04 (7 ± 3) x 10-4 13 2.336 1.982

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1842.2-0328 Swift-XRT image with known radio, optical and UV sources for 4FGL J1842.2-0328

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1BMW 184211.3-033313 18 42 11.35 -03 33 13.32 4.33 ROSAT
1 2CXO J184211.5-033316 18 42 11.52 -03 33 16.20 4.37 CHANDRA
2 4XMM J184240.9-032736 18 42 40.99 -03 27 36.72 6.86 XMM-NEWTON
3 4XMM J184226.5-032222 18 42 26.52 -03 22 22.44 7.28 XMM-NEWTON
4 1BMW 184153.2-033638 18 41 53.16 -03 36 38.16 9.28 ROSAT
5 2CXO J184251.3-033007 18 42 51.36 -03 30 07.56 9.39 CHANDRA
6 4XMM J184244.6-032318 18 42 44.59 -03 23 18.24 9.49 XMM-NEWTON
7 2CXO J184253.4-032948 18 42 53.45 -03 29 48.12 9.88 CHANDRA
CXOGSG J184253.4-032948 18 42 53.45 -03 29 48.84 9.88 CHANDRA
4XMM J184253.4-032948 18 42 53.47 -03 29 48.12 9.89 XMM-NEWTON
4XMM J184253.3-032734 18 42 53.35 -03 27 34.56 9.91 XMM-NEWTON
8 CXOGSG J184253.3-032735 18 42 53.40 -03 27 35.28 9.92 CHANDRA
9 2CXO J184248.0-033436 18 42 48.02 -03 34 36.12 10.20 CHANDRA
10 CXOGSG J184255.8-032709 18 42 55.82 -03 27 09.00 10.59 CHANDRA
2CXO J184255.8-032706 18 42 55.87 -03 27 06.48 10.61 CHANDRA
4XMM J184255.9-032706 18 42 55.90 -03 27 06.48 10.61 XMM-NEWTON
11 4XMM J184252.5-032201 18 42 52.54 -03 22 01.20 11.85 XMM-NEWTON
12 2CXO J184256.8-031916 18 42 56.86 -03 19 16.68 14.41 CHANDRA
13 2CXO J184258.3-031940 18 42 58.32 -03 19 40.08 14.43 CHANDRA
CXOGSG J184258.3-031940 18 42 58.34 -03 19 40.08 14.44 CHANDRA
4XMM J184258.3-031940 18 42 58.39 -03 19 40.08 14.44 XMM-NEWTON
14 4XMM J184301.5-031957 18 43 01.58 -03 19 57.72 14.89 XMM-NEWTON
15 4XMM J184259.6-031758 18 42 59.62 -03 17 58.56 15.80 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J184216-033012 18 42 16.39 -03 30 11.88 1.39 NVSS
2 NVSS J184207-032718 18 42 07.61 -03 27 19.08 2.28 NVSS
3 NVSS J184203-032528 18 42 03.70 -03 25 27.84 4.32 NVSS
4 NVSS J184200-032543 18 42 00.41 -03 25 42.96 4.68 NVSS
5 MAGPIS Discrete G28.85016+0.52 18 42 06.31 -03 23 27.96 5.80 MAGPIS
6 MAGPIS Discrete G28.69026+0.42 18 42 10.10 -03 34 45.12 5.89 MAGPIS
7 MAGPIS Discrete G28.75185+0.55 18 41 48.60 -03 27 50.04 6.44 MAGPIS
8 NVSS J184155-033340 18 41 55.61 -03 33 41.04 6.60 NVSS
9 MAGPIS Discrete G28.87993+0.51 18 42 11.50 -03 22 08.04 6.84 MAGPIS
10 AS 317 18 42 43.75 -03 28 59.88 7.42 WACKERLING
11 NVSS J184156-033543 18 41 56.40 -03 35 44.16 8.08 NVSS
PMN J1841-0335 18 41 52.51 -03 35 56.04 8.81 PMN
12 NVSS J184247-033138 18 42 47.81 -03 31 37.92 8.84 NVSS
13 NVSS J184153-033609 18 41 53.11 -03 36 10.08 8.90 NVSS
MAGPIS Diffuse G28.6361+0.4806 18 41 53.40 -03 36 18.00 8.98 MAGPIS
14 NVSS J184134-032735 18 41 34.20 -03 27 34.92 10.02 NVSS
15 NVSS J184132-032848 18 41 32.71 -03 28 48.00 10.31 NVSS
16 MAGPIS Discrete G28.89201+0.59 18 41 57.10 -03 19 27.84 10.38 MAGPIS
17 MAGPIS Discrete G28.61768+0.51 18 41 44.21 -03 36 19.08 10.48 MAGPIS
18 MAGPIS Discrete G28.89752+0.32 18 42 55.61 -03 26 35.88 10.64 MAGPIS
19 [WBH2005] G28.781+0.277 18 42 52.20 -03 34 01.92 10.80 WBHGP6CM
[WBH2005] G28.783+0.276 18 42 52.51 -03 33 56.88 10.83 WBHGP6CM
20 NVSS J184250-033457 18 42 50.30 -03 34 57.00 10.87 NVSS
MAGPIS Diffuse G28.7653+0.2750 18 42 51.41 -03 34 45.12 10.99 MAGPIS
[WBH2005] G28.776+0.272 18 42 52.51 -03 34 26.04 11.07 WBHGP6CM
21 MAGPIS Discrete G28.62189+0.55 18 41 34.49 -03 34 46.92 11.47 MAGPIS
MAGPIS Discrete G28.62000+0.56 18 41 33.79 -03 34 49.08 11.64 MAGPIS
22 NVSS J184158-031721 18 41 58.10 -03 17 21.84 12.25 NVSS
23 NVSS J184126-032446 18 41 26.59 -03 24 47.16 12.55 NVSS
24 NVSS J184300-033408 18 43 00.70 -03 34 08.04 12.76 NVSS
MAGPIS Diffuse G28.7972+0.2444 18 43 00.19 -03 34 33.96 12.82 MAGPIS
25 MAGPIS Discrete G28.69007+0.25 18 42 46.99 -03 39 29.88 13.38 MAGPIS
[WBH2005] G28.690+0.254 18 42 46.99 -03 39 29.88 13.39 WBHGP6CM
26 NVSS J184252-031704 18 42 52.99 -03 17 03.84 15.35 NVSS

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