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 J0919.5-2200

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0919.5-2200 Swift-XRT detections in the field for 3FGL J0919.5-2200

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 19 26.09 -22 00 43.66 4.10 (8.8 ± 1.0) x 10-3 122 9.645 9.325
2 09 20 02.74 -21 58 34.85 4.29 (5.8 ± 0.7) x 10-3 86 8.142 8.311

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 19 40.53 -22 00 43.01 4.63 (9 ± 3) x 10-4 49 2.601 2.732
2 09 19 40.68 -22 00 42.63 4.61 (9 ± 4) x 10-4 47 2.806 2.698
3 09 19 07.13 -22 00 32.56 5.40 (8 ± 3) x 10-4 23 2.528 2.674
4 09 19 54.53 -22 09 22.70 5.24 (7 ± 3) x 10-4 17 2.510 2.266
5 09 18 54.76 -22 02 19.51 5.31 (7 ± 3) x 10-4 13 2.412 2.201

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0919.5-2200 Swift-XRT image with known radio, optical and UV sources for 3FGL J0919.5-2200

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J091926.5-220052 09 19 26.50 -22 00 52.56 1.39 ROSAT
2RXS J091926.3-220054 09 19 26.40 -22 00 54.72 1.43 ROSAT
2RXS J091926.3-220054 09 19 26.40 -22 00 54.72 1.43 ROSAT
2E 0917.1-2148 09 19 26.11 -22 00 57.96 1.52 EINSTEIN
2E 0917.1-2148 09 19 26.06 -22 00 57.96 1.52 EINSTEIN
2 1RXS J091921.8-220803 09 19 21.79 -22 08 03.48 8.09 ROSAT
2RXS J091921.8-220804 09 19 21.84 -22 08 04.56 8.10 ROSAT
2RXS J091921.8-220804 09 19 21.84 -22 08 04.56 8.10 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
QORG J091926.2-220043 09 19 26.21 -22 00 42.84 1.40 QORGCAT
1 NVSS J091926-220044 09 19 26.21 -22 00 45.00 1.41 NVSS
2 PGC 820978 09 19 44.90 -21 58 45.12 3.38 PGC2003
WISH B0917.1-2155 09 19 22.30 -22 07 49.08 7.83 WISH
GLEAM J091923-220759 09 19 23.50 -22 07 59.16 7.92 GLEAMEGCAT
TGSSADR J091922.3-220756 09 19 22.39 -22 07 57.00 7.95 GMRTAS150M
3 NVSS J091922-220757 09 19 22.30 -22 07 57.00 7.96 NVSS
QORG J091922.2-220757 09 19 22.20 -22 07 57.00 7.96 QORGCAT
WISH B0917.7-2139 09 19 59.71 -21 52 18.84 10.26 WISH
4 NVSS J091959-215212 09 19 59.71 -21 52 13.08 10.34 NVSS
TGSSADR J091959.7-215212 09 19 59.71 -21 52 13.08 10.35 GMRTAS150M
GLEAM J091855-215417 09 18 55.30 -21 54 18.00 10.43 GLEAMEGCAT
GLEAM J091959-215208 09 20 00.00 -21 52 09.12 10.44 GLEAMEGCAT
WISH B0916.6-2141 09 18 55.01 -21 54 20.88 10.46 WISH
TGSSADR J091854.7-215420 09 18 54.79 -21 54 20.16 10.51 GMRTAS150M
QORG J091854.6-215423 09 18 54.60 -21 54 23.04 10.52 QORGCAT
5 NVSS J091854-215420 09 18 54.60 -21 54 20.88 10.54 NVSS
6 NVSS J092017-220227 09 20 17.40 -22 02 26.88 10.73 NVSS
7 AM Hya 09 18 58.66 -21 52 42.60 10.86 GCVS
8 NVSS J091844-220929 09 18 43.99 -22 09 29.88 14.41 NVSS

Penn State University Goddard Space Flight Center Swift