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 J0917.9-4755

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0917.9-4755 Swift-XRT detections in the field for 4FGL J0917.9-4755

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 18 18.43 -48 01 24.22 5.31 (6 ± 2) x 10-3 25 4.554 4.051

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 16 48.77 -47 57 10.38 7.09 (2.5 ± 1.0) x 10-3 10 2.548 2.515
2 09 18 06.93 -47 49 42.83 8.27 (2.4 ± 1.0) x 10-3 7 2.338 2.395

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0917.9-4755 Swift-XRT image with known radio, optical and UV sources for 4FGL J0917.9-4755

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J091900.1-475740 09 19 00.14 -47 57 41.04 11.14 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J091743-475252 09 17 43.01 -47 52 51.96 3.47 MGPS2
2 MGPS J091809-480224 09 18 09.10 -48 02 25.08 7.10 MGPS2
3 MGPS J091714-480131 09 17 14.21 -48 01 31.08 8.91 MGPS2
TGSSADR J091714.2-480132 09 17 14.21 -48 01 32.16 8.92 GMRTAS150M
4 DCC270.3+00.9 09 16 55.30 -47 56 36.96 9.98 DIXON
5 AG G270.3+0.9 09 16 54.31 -47 57 18.00 10.23 DIXON
6 TGSSADR J091651.5-475437 09 16 51.60 -47 54 37.08 10.63 GMRTAS150M
7 PMN J0916-4757 09 16 51.41 -47 57 02.88 10.68 PMN
8 PCCS2 030 G270.29+00.83 09 16 50.11 -47 57 51.84 11.02 PCCS030GHZ
PCCS2 070 G270.28+00.84 09 16 48.91 -47 57 14.04 11.11 PCCS070GHZ
9 SAO 221060 09 19 00.17 -47 58 05.16 11.22 SAO
CD-47 4831 09 19 00.29 -47 58 04.08 11.23 ACRS
PPM 314194 09 19 00.29 -47 58 04.08 11.23 PPM
HD 80572 09 19 00.29 -47 58 03.72 11.23 HIC
HIP 45703 09 19 00.41 -47 58 05.88 11.26 HIPPARCOS
10 PCCS2 044 G270.29+00.82 09 16 46.30 -47 58 40.08 11.83 PCCS044GHZ
11 TGSSADR J091643.6-475630 09 16 43.70 -47 56 30.12 11.91 GMRTAS150M
12 -47:4831 09 19 03.77 -47 58 42.60 11.94 NLTT
13 HD 80281 09 17 10.99 -47 44 07.80 13.73 HIC
CD-47 4811 09 17 10.99 -47 44 07.80 13.73 ACRS
PPM 314162 09 17 10.97 -47 44 07.80 13.73 PPM
HIP 45562 09 17 10.94 -47 44 07.80 13.73 HIPPARCOS
SAO 221027 09 17 10.87 -47 44 07.08 13.74 SAO

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