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 J1604.4-4927

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1604.4-4927 Swift-XRT detections in the field for 4FGL J1604.4-4927


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 16 03 48.82 -49 32 55.26 6.78 (2.8 ± 1.1) x 10-3 11 2.689 2.486
2 16 04 48.86 -49 17 31.48 8.27 (1.9 ± 1.0) x 10-3 7 2.216 1.897

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1604.4-4927 Swift-XRT image with known radio, optical and UV sources for 4FGL J1604.4-4927

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J160353.9-491915 16 03 54.00 -49 19 15.24 9.67 ROSAT
2 4XMM J160349.8-491524 16 03 49.80 -49 15 24.12 13.35 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 TGSSADR J160438.0-492834 16 04 38.11 -49 28 35.04 2.24 GMRTAS150M
MGPS J160437-492838 16 04 37.90 -49 28 37.92 2.25 MGPS2
2 HD 330336 16 04 14.71 -49 23 00.96 4.73 HDEC
3 MGPS J160438-492052 16 04 38.30 -49 20 52.08 6.74 MGPS2
4 NSV 20495 16 05 18.89 -49 30 07.92 8.94 GCVSNSVARS
V384 Nor 16 05 18.89 -49 30 08.28 8.94 GCVS
HIP 78808 16 05 18.91 -49 30 08.28 8.94 HIPPARCOS
HD 330338 A 16 05 18.98 -49 30 07.56 8.95 HDEC
HD 330338 16 05 19.13 -49 30 06.48 8.97 HIC
HD 330338 C 16 05 19.01 -49 30 18.36 9.01 HDEC
HD 330338 B 16 05 19.66 -49 30 04.68 9.04 HDEC
5 WDS J16053-4931 AC 16 05 18.00 -49 31 00.12 9.11 WDS
WDS J16053-4931 AB 16 05 18.00 -49 31 00.12 9.11 WDS
6 HD 330333 16 04 46.68 -49 17 44.52 10.14 HDEC
7 -4910284 16 03 22.73 -49 24 09.36 10.86 WACKERLING
8 SAO 226493 16 05 33.48 -49 26 08.16 10.93 SAO
CD-4910308 16 05 33.50 -49 26 07.80 10.94 ACRS
HD 330337 16 05 33.55 -49 26 07.80 10.95 HDEC
PPM 321355 16 05 33.55 -49 26 07.80 10.95 PPM
SAO 226494 16 05 34.20 -49 26 02.76 11.06 SAO
WDS J16056-4926 16 05 36.00 -49 25 59.88 11.36 WDS
9 TGSSADR J160506.1-493654 16 05 06.19 -49 36 55.08 11.53 GMRTAS150M
10 HD 330339 16 05 33.55 -49 32 42.00 12.12 HDEC
PPM 321356 16 05 33.55 -49 32 42.00 12.12 PPM
11 TGSSADR J160317.3-492222 16 03 17.40 -49 22 22.08 12.31 GMRTAS150M
12 PGCC G332.19+2.24 16 05 23.09 -49 17 26.16 13.51 PLANCKGCC

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