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 J2027.0+2811

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2027.0+2811 Swift-XRT detections in the field for 4FGL J2027.0+2811


No detected excesses found.

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2027.0+2811 Swift-XRT image with known radio, optical and UV sources for 4FGL J2027.0+2811

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J202728.0+281333 20 27 28.03 +28 13 33.60 5.74 ROSAT
2 1WGA J2026.8+2803 20 26 49.51 +28 03 44.28 8.29 ROSAT
2RXP J202649.7+280333 20 26 49.63 +28 03 33.12 8.45 ROSAT
3 Unknown 20 27 19.22 +28 19 57.36 9.20 EXOSAT
4 1WGA J2027.2+2801 20 27 13.39 +28 01 10.56 10.43 ROSAT
2RXP J202713.7+280058 20 27 13.63 +28 00 57.96 10.64 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J202703+280658 20 27 03.70 +28 06 57.96 4.42 NVSS
TGSSADR J202703.7+280657 20 27 03.70 +28 06 56.88 4.44 GMRTAS150M
2 HD 334416 20 26 52.82 +28 15 25.20 4.71 HDEC
3 2024+2756 20 27 02.71 +28 06 27.00 4.95 NORTH6CM
GB6 J2027+2806 20 27 01.39 +28 06 28.08 4.96 GB6
4 NVSS J202646+281534 20 26 46.20 +28 15 34.92 5.73 NVSS
5 HD 340173 B 20 27 06.29 +28 04 21.36 7.06 HDEC
HD 340173 A 20 27 06.26 +28 04 15.24 7.16 HDEC
6 WDS J20268+2804 20 26 48.00 +28 04 00.12 8.19 WDS
HIP 100839 20 26 46.32 +28 04 04.44 8.29 HIPPARCOS
PPM 111149 20 26 46.30 +28 04 04.08 8.29 PPM
SAO 88684 20 26 46.39 +28 04 03.36 8.30 SAO
HD 194805 20 26 46.32 +28 04 03.36 8.30 HIC
BD+27 3733 20 26 46.32 +28 04 03.36 8.30 ACRS
7 HD 334415 20 27 18.60 +28 19 44.04 8.94 HDEC
V436 Vul 20 27 18.62 +28 19 44.04 8.95 GCVS
BD+27 3738 20 27 18.58 +28 19 44.40 8.95 ACRS
PPM 111171 20 27 18.58 +28 19 44.40 8.95 PPM
SAO 88699 20 27 18.62 +28 19 44.40 8.95 SAO
8 NVSS J202623+280901 20 26 23.90 +28 09 01.08 9.14 NVSS
WDS J20273+2820 BC 20 27 18.00 +28 19 59.88 9.15 WDS
WDS J20273+2820 AB 20 27 18.00 +28 19 59.88 9.15 WDS
9 HD 334506 20 27 44.76 +28 14 03.12 9.38 HDEC
10 NVSS J202639+280307 20 26 39.19 +28 03 07.92 9.90 NVSS
TGSSADR J202639.2+280306 20 26 39.31 +28 03 06.84 9.91 GMRTAS150M
11 HIP 100902 20 27 33.07 +28 03 27.36 10.21 HIPPARCOS
HD 340293 20 27 33.10 +28 03 27.36 10.22 HDEC
PPM 111180 20 27 33.10 +28 03 27.36 10.22 PPM
BD+27 3739 20 27 33.12 +28 03 27.36 10.22 ACRS
HD 340293 20 27 33.07 +28 03 27.00 10.22 HIC
SAO 88702 20 27 33.22 +28 03 27.72 10.23 SAO
12 HD 334413 20 27 13.20 +28 21 27.72 10.27 HDEC
PPM 111167 20 27 13.22 +28 21 27.72 10.27 PPM
BD+27 3737 20 27 13.22 +28 21 27.72 10.27 ACRS
HD 340294 20 27 34.68 +28 03 35.28 10.34 HDEC
HIP 100908 20 27 34.73 +28 03 35.64 10.34 HIPPARCOS
PPM 111181 20 27 34.70 +28 03 35.28 10.34 PPM
BD+27 3739 20 27 34.70 +28 03 34.56 10.35 ACRS
HD 340294 20 27 34.73 +28 03 34.56 10.36 HIC
13 NVSS J202744+280557 20 27 44.71 +28 05 57.12 10.51 NVSS
14 HD 340174 20 27 13.82 +28 00 59.76 10.62 HDEC
PPM 111168 20 27 13.82 +28 00 59.76 10.62 PPM
BD+27 3736 20 27 13.80 +28 00 57.96 10.65 ACRS
15 PPM 111157 20 27 00.07 +28 00 35.64 10.83 PPM
NN 20 27 00.00 +28 00 35.64 10.84 ACRS
16 WDS J20276+2803 20 27 36.00 +28 03 00.00 10.98 WDS
17 NVSS J202642+280120 20 26 42.91 +28 01 21.00 11.07 NVSS
18 BD+27 3731 20 26 18.74 +28 17 02.04 11.44 ACRS
SAO 88677 20 26 18.77 +28 17 03.12 11.44 SAO
PPM 111137 20 26 18.77 +28 17 02.76 11.44 PPM
HD 334408 20 26 18.74 +28 17 02.76 11.45 HDEC
19 NVSS J202757+281003 20 27 57.41 +28 10 04.08 11.85 NVSS
20 PGCC G68.64-5.80 20 26 16.99 +28 04 57.00 12.20 PLANCKGCC
21 HD 334414 20 27 26.11 +28 22 52.32 12.47 HDEC
22 NVSS J202635+280013 20 26 35.30 +28 00 12.96 12.84 NVSS
TGSSADR J202756.7+280503 20 27 56.71 +28 05 03.12 13.26 GMRTAS150M
23 NVSS J202756+280501 20 27 56.90 +28 05 02.04 13.30 NVSS

Penn State University Goddard Space Flight Center Swift