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.

3FGL J1857.8+0129c

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1857.8+0129c Swift-XRT detections in the field for 3FGL J1857.8+0129c

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 57 20.13 +01 20 34.20 6.65 (1.2 ± 0.3) x 10-2 16 4.014 3.766

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1857.8+0129c Swift-XRT image with known radio, optical and UV sources for 3FGL J1857.8+0129c

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1857.3+0134 18 57 23.81 +01 34 29.64 8.66 ROSAT
2 SNR 034.7-00.4 18 57 36.00 +01 19 00.12 11.68 INTEGRAL
2EG J1857+0118 18 57 36.00 +01 19 00.12 11.73 MGGAMMACAT
2RXP J185721.6+012048 18 57 21.55 +01 20 48.12 12.02 ROSAT
1WGA J1857.3+0120 18 57 19.49 +01 20 49.20 12.34 ROSAT
3 1WGA J1857.2+0121 18 57 17.50 +01 21 18.00 12.35 ROSAT
1RXH J185719.6+012041 18 57 19.58 +01 20 41.64 12.42 ROSAT
1RXS J185719.7+012039 18 57 19.70 +01 20 39.48 12.43 ROSAT
2RXS J185719.7+012039 18 57 19.70 +01 20 39.48 12.43 ROSAT
1RXS J185719.7+012039 18 57 19.70 +01 20 39.12 12.43 ROSAT
Unknown 18 57 19.27 +01 20 43.80 12.45 EXOSAT
1RXH J185719.3+012042 18 57 19.32 +01 20 42.72 12.46 ROSAT
4 XMMSL2 J185719.8+012034 18 57 19.80 +01 20 34.44 12.48 XMM-NEWTON
XMMSL2 J185719.8+012034 18 57 19.73 +01 20 34.80 12.48 XMM-NEWTON
XMMSL2 J185719.8+012034 18 57 19.90 +01 20 31.92 12.49 XMM-NEWTON
2RXP J185719.2+012039 18 57 19.15 +01 20 39.12 12.53 ROSAT
BD+01 3828B 18 57 19.46 +01 20 33.36 12.55 ROSAT
BD+01 3828 18 57 19.46 +01 20 33.36 12.55 ROSAT
1RXH J185718.9+012036 18 57 18.91 +01 20 36.60 12.60 ROSAT
2E 1854.7+0116 18 57 18.74 +01 20 25.80 12.76 EINSTEIN
2E 1854.7+0116 18 57 18.77 +01 20 25.08 12.76 EINSTEIN
5 4XMMs J185706.9+011835 18 57 06.91 +01 18 35.64 16.13 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 V1733 Aql 18 57 50.42 +01 31 14.88 1.53 GCVS
2 NVSS J185737+013029 18 57 37.30 +01 30 29.16 3.98 NVSS
3 NVSS J185748+012557 18 57 48.50 +01 25 58.08 4.08 NVSS
4 QORG J185801.4+012529 18 58 01.39 +01 25 28.92 4.85 QORGCAT
5 NVSS J185808+012555 18 58 08.11 +01 25 55.92 5.43 NVSS
[SPT2015] VLA J1858+0125 18 58 08.21 +01 25 51.96 5.49 FER2FUSRID
[WBH2005] G34.969-0.837 18 58 08.21 +01 25 51.96 5.50 WBHGP20CM
6 [PME2013] J1858+0125 18 58 13.01 +01 25 53.04 6.39 AT2FGLUS
[SPT2015] ATCA J1858+012A 18 58 13.30 +01 25 54.12 6.43 FER2FUSRID
QORG J185744.4+012332 18 57 44.40 +01 23 31.92 6.70 QORGCAT
7 NVSS J185744+012331 18 57 43.99 +01 23 30.84 6.74 NVSS
8 NVSS J185727+013225 18 57 27.10 +01 32 25.08 6.98 NVSS
9 BD+01 3835 18 58 05.16 +01 36 18.36 7.11 ACRS
PPM 166898 18 58 05.16 +01 36 18.72 7.12 PPM
10 GB6 J1858+0136 18 58 08.59 +01 36 38.88 7.81 GB6
1855+0132 18 58 08.69 +01 36 38.16 7.81 NORTH6CM
Ap 2-1 18 58 07.99 +01 37 06.24 8.14 PLNEBULAE
[SPT2015] ATCA J1858+0136 18 58 10.51 +01 36 56.88 8.31 FER2FUSRID
11 NVSS J185810+013657 18 58 10.51 +01 36 56.88 8.32 NVSS
[WBH2005] G35.139-0.763 18 58 10.90 +01 36 56.16 8.35 WBHGP20CM
12 [WBH2005] G34.898-0.846 18 58 02.21 +01 21 47.88 8.37 WBHGP20CM
13 NVSS J185753+012128 18 57 53.81 +01 21 28.08 8.40 NVSS
TGSSADR J185802.2+012146 18 58 02.21 +01 21 46.08 8.41 GMRTAS150M
[WBH2005] G35.140-0.762 18 58 10.90 +01 37 04.08 8.46 WBHGP20CM
14 NVSS J185724+013446 18 57 24.19 +01 34 45.84 8.72 NVSS
15 [PME2013] J1858+0136 18 58 15.50 +01 36 55.08 9.00 AT2FGLUS
16 NVSS J185752+012044 18 57 52.20 +01 20 44.88 9.13 NVSS
17 [WBH2005] G35.134-0.647 18 57 45.70 +01 39 52.92 10.18 WBHGP20CM
18 NVSS J185728+012137 18 57 28.61 +01 21 38.16 10.26 NVSS
19 NVSS J185822+013727 18 58 22.80 +01 37 27.12 10.61 NVSS
20 NVSS J185741+011935 18 57 41.11 +01 19 36.12 10.70 NVSS
21 NVSS J185835+012814 18 58 36.00 +01 28 14.16 10.84 NVSS
22 NVSS J185833+012534 18 58 33.00 +01 25 35.04 10.87 NVSS
23 NVSS J185714+013522 18 57 14.90 +01 35 21.84 11.02 NVSS
24 NVSS J185818+013902 18 58 18.79 +01 39 02.16 11.19 NVSS
25 NVSS J185803+011849 18 58 03.19 +01 18 50.04 11.33 NVSS
26 BD+01 3827 18 57 05.81 +01 29 16.08 11.83 ACRS
PPM 166860 18 57 05.78 +01 29 16.80 11.84 PPM
SAO 124086 18 57 05.76 +01 29 16.44 11.84 SAO
QORG J185705.8+012903 18 57 05.81 +01 29 03.12 11.85 QORGCAT
27 NVSS J185735+011838 18 57 35.81 +01 18 38.88 12.02 NVSS
28 NVSS J185800+011753 18 58 00.89 +01 17 53.16 12.14 NVSS
29 NVSS J185806+011806 18 58 06.19 +01 18 06.12 12.21 NVSS
30 QORG J185717.5+012123 18 57 17.50 +01 21 23.04 12.29 QORGCAT
WDS J18573+0121 18 57 18.00 +01 21 00.00 12.47 WDS
31 PPM 166870 18 57 19.54 +01 20 34.08 12.52 PPM
NSV 24633 18 57 19.49 +01 20 34.08 12.53 GCVSNSVARS
BD+01 3828 18 57 19.54 +01 20 33.36 12.53 ACRS
QORG J185719.4+012033 18 57 19.39 +01 20 33.00 12.56 QORGCAT
32 BD+01 3838 18 58 27.26 +01 39 05.76 12.58 ACRS
PPM 166913 18 58 27.26 +01 39 06.12 12.58 PPM
33 NVSS J185709+013854 18 57 09.10 +01 38 54.96 14.23 NVSS
[WBH2005] G35.053-0.518 18 57 09.10 +01 39 02.88 14.33 WBHGP20CM
34 NVSS J185832+014148 18 58 32.40 +01 41 48.12 15.45 NVSS

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