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 J0918.2-4859

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0918.2-4859 Swift-XRT detections in the field for 3FGL J0918.2-4859


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 18 03.79 -49 05 24.44 11.02 (1.0 ± 0.4) x 10-2 5 2.084 2.646

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0918.2-4859 Swift-XRT image with known radio, optical and UV sources for 3FGL J0918.2-4859

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J091858.1-490827 09 18 58.18 -49 08 27.24 11.28 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 TGSSADR J091737.4-485652 09 17 37.51 -48 56 52.08 7.03 GMRTAS150M
2 PMN J0917-4858 09 17 31.61 -48 58 18.84 7.61 PMN
3 PPM 314173 09 17 50.04 -49 06 39.24 8.59 PPM
SAO 221039 09 17 50.09 -49 06 39.96 8.59 SAO
4 WDS J09193-4859 09 19 18.00 -48 58 59.88 9.92 WDS
SAO 221066 09 19 18.10 -48 58 39.36 9.96 SAO
HIP 45724 09 19 18.12 -48 58 40.44 9.96 HIPPARCOS
HD 80664 09 19 18.14 -48 58 40.44 9.97 HIC
CD-48 4600 09 19 18.14 -48 58 40.44 9.97 ACRS
PPM 314200 09 19 18.17 -48 58 40.44 9.97 PPM
5 PPM 756577 09 19 19.10 -48 59 48.48 10.11 PPM
HD 297408 09 19 19.15 -48 59 47.76 10.12 HDEC
6 PMN J0918-4850 09 18 44.21 -48 50 12.12 10.14 PMN
7 PMN J0918-4848 09 18 12.70 -48 48 19.08 11.06 PMN
8 MGPS J091717-485154 09 17 17.11 -48 51 54.00 12.41 MGPS2
TGSSADR J091716.7-485156 09 17 16.80 -48 51 56.16 12.43 GMRTAS150M
9 HD 297409 09 19 25.80 -49 11 15.00 16.33 HDEC

Penn State University Goddard Space Flight Center Swift