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 J2229.1+2255

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2229.1+2255 Swift-XRT detections in the field for 3FGL J2229.1+2255

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 29 11.16 +22 54 56.43 3.68 (1.53 ± 0.07) x 10-1 481 20.850 21.100
2 22 28 51.57 +22 59 37.35 5.96 (7 ± 2) x 10-3 17 3.756 3.748

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 22 29 46.84 +22 56 58.16 6.31 (2.1 ± 1.0) x 10-3 11 2.567 2.048

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2229.1+2255 Swift-XRT image with known radio, optical and UV sources for 3FGL J2229.1+2255

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J222911.0+225537 22 29 10.99 +22 55 37.56 0.70 ROSAT
2 2RXS J222910.4+225502 22 29 10.49 +22 55 02.28 0.90 ROSAT
2RXS J222910.4+225502 22 29 10.49 +22 55 02.28 0.90 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J222905+225431 22 29 05.40 +22 54 30.96 1.35 NVSS
2 NVSS J222913+225511 22 29 13.90 +22 55 10.92 1.45 NVSS
TGSSADR J222914.3+225510 22 29 14.40 +22 55 09.84 1.57 GMRTAS150M
TGSSADR J222918.6+225446 22 29 18.70 +22 54 47.16 2.64 GMRTAS150M
3 NVSS J222918+225442 22 29 18.79 +22 54 42.84 2.69 NVSS
4 NVSS J222857+225417 22 28 57.79 +22 54 16.92 2.76 NVSS
5 NVSS J222922+225247 22 29 22.90 +22 52 48.00 4.51 NVSS
6 NVSS J222908+224834 22 29 08.50 +22 48 33.84 7.16 NVSS
TGSSADR J222935.5+225945 22 29 35.50 +22 59 44.88 7.51 GMRTAS150M
7 NVSS J222935+225946 22 29 35.50 +22 59 45.96 7.52 NVSS
8 NVSS J222825+225943 22 28 25.90 +22 59 43.08 10.49 NVSS
TGSSADR J222825.7+225943 22 28 25.80 +22 59 44.16 10.51 GMRTAS150M
9 NVSS J222915+230654 22 29 15.91 +23 06 55.08 11.33 NVSS
10 NVSS J222956+225101 22 29 56.81 +22 51 02.16 12.19 NVSS
11 NVSS J222955+224946 22 29 55.61 +22 49 46.92 12.48 NVSS
12 NVSS J222845+230725 22 28 45.50 +23 07 26.04 12.79 NVSS
TGSSADR J222845.4+230727 22 28 45.50 +23 07 27.12 12.82 GMRTAS150M
13 NVSS J222834+230732 22 28 34.70 +23 07 32.16 14.08 NVSS

Penn State University Goddard Space Flight Center Swift