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 J0906.8-2122

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0906.8-2122 Swift-XRT detections in the field for 4FGL J0906.8-2122


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 09 05 59.18 -21 20 11.71 7.27 (2.0 ± 0.7) x 10-3 11 2.803 2.888
2 09 06 20.07 -21 20 39.29 7.71 (1.4 ± 0.6) x 10-3 8 2.295 2.301
3 09 07 30.96 -21 18 38.73 5.70 (1.3 ± 0.7) x 10-3 10 2.487 1.935

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0906.8-2122 Swift-XRT image with known radio, optical and UV sources for 4FGL J0906.8-2122

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J090558.3-213145 09 05 58.30 -21 31 45.48 15.11 ROSAT
2RXS J090558.4-213148 09 05 58.44 -21 31 48.72 15.12 ROSAT
2RXS J090558.4-213148 09 05 58.44 -21 31 48.72 15.12 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 729181 09 06 53.14 -21 31 15.96 8.97 PPM
2 SAO 176958 09 06 23.95 -21 29 25.80 9.19 SAO
Rns 22147 09 06 23.88 -21 29 26.52 9.21 CPSTARS
PPM 255652 09 06 23.88 -21 29 26.88 9.22 PPM
BD-20 2792 09 06 23.83 -21 29 26.88 9.22 ACRS
3 WDS J09070-2113 09 07 00.00 -21 13 00.12 9.68 WDS
4 BD-20 2795 09 07 02.42 -21 12 30.24 10.32 ACRS
PPM 255673 09 07 02.45 -21 12 30.24 10.32 PPM
SAO 176978 09 07 02.35 -21 12 29.16 10.33 SAO
5 NVSS J090604-212533 09 06 04.90 -21 25 33.96 10.79 NVSS
6 WDS J09069-2111 09 06 54.00 -21 10 59.88 11.40 WDS
7 NVSS J090559-212012 09 05 59.59 -21 20 12.12 11.72 NVSS
AT20G J090559-212012 09 05 59.11 -21 20 12.12 11.83 AT20G
8 PPM 255685 09 07 39.29 -21 19 16.32 12.08 PPM
BD-20 2797 09 07 39.29 -21 19 16.32 12.08 ACRS
SAO 176989 09 07 39.48 -21 19 15.60 12.13 SAO
9 WISH B0905.2-2100 09 07 33.41 -21 12 34.92 14.21 WISH
10 NVSS J090733-211203 09 07 33.91 -21 12 03.96 14.65 NVSS
GLEAM J090734-211212 09 07 34.80 -21 12 12.96 14.69 GLEAMEGCAT
11 SAO 176946 09 05 57.67 -21 31 55.92 15.33 SAO
HD 78130 09 05 57.60 -21 31 57.00 15.36 HIC
HIP 44657 09 05 57.58 -21 31 57.36 15.37 HIPPARCOS

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