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.

1FGL J1842.3-5845

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J1842.3-5845 Swift-XRT detections in the field for 1FGL J1842.3-5845

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 42 29.97 -58 41 58.93 3.56 (2.88 ± 0.07) x 10-1 1689 38.100 39.270

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 41 35.45 -58 41 50.81 5.70 (1.7 ± 0.7) x 10-3 15 2.428 2.317
2 18 42 59.74 -58 41 06.81 5.76 (1.3 ± 0.6) x 10-3 15 2.470 2.042
3 18 42 29.97 -58 41 58.93 3.56 (1.2 ± 0.8) x 10-3 1683 2.924 1.551
4 18 42 29.97 -58 41 58.93 3.56 N/A 1683 3.094 N/A
5 18 42 29.97 -58 41 58.93 3.56 N/A 1688 3.262 N/A
6 18 42 29.96 -58 41 59.16 3.56 N/A 1690 3.172 N/A
7 18 42 29.98 -58 41 59.17 3.56 N/A 1678 3.030 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1842.3-5845 Swift-XRT image with known radio, optical and UV sources for 1FGL J1842.3-5845

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2RXS J184229.6-584203 18 42 29.64 -58 42 03.24 3.15 ROSAT
2RXS J184229.6-584203 18 42 29.64 -58 42 03.24 3.15 ROSAT
SWIFT J184229.8-584200 18 42 29.83 -58 42 00.72 3.20 SWIFT
1RXS J184230.6-584202 18 42 30.60 -58 42 02.52 3.21 ROSAT
1RXS J184230.6-584202 18 42 30.60 -58 42 02.16 3.21 ROSAT
1 XMMSL2 J184229.1-584157 18 42 29.16 -58 41 57.12 3.23 XMM-NEWTON
XMMSL2 J184229.1-584157 18 42 29.16 -58 41 57.12 3.23 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [SPT2015] ATCA J1842-5841 18 42 29.81 -58 41 56.04 3.27 FER2FUSRID
[PME2013] J1842-5841 18 42 29.81 -58 41 56.04 3.27 AT2FGLUS
2 SUMSS J184258-584247 18 42 58.39 -58 42 47.16 5.29 SUMSS
3 GLEAM J184301-584217 18 43 01.20 -58 42 16.92 5.84 GLEAMEGCAT
4 SUMSS J184307-584030 18 43 07.30 -58 40 31.08 7.47 SUMSS
5 SUMSS J184208-583738 18 42 08.11 -58 37 37.92 7.58 SUMSS
6 GLEAM J184128-584147 18 41 28.20 -58 41 48.12 7.62 GLEAMEGCAT
SUMSS J184128-584131 18 41 28.10 -58 41 31.92 7.75 SUMSS
7 SUMSS J184143-585233 18 41 43.61 -58 52 32.88 8.98 SUMSS
GLEAM J184140-585230 18 41 40.99 -58 52 31.08 9.14 GLEAMEGCAT
8 SUMSS J184137-585218 18 41 37.20 -58 52 18.12 9.27 SUMSS
9 SUMSS J184132-583519 18 41 32.81 -58 35 18.96 11.58 SUMSS
10 GLEAM J184127-583537 18 41 27.70 -58 35 36.96 11.71 GLEAMEGCAT

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