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 J1603.6-0451

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1603.6-0451 Swift-XRT detections in the field for 4FGL J1603.6-0451

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 03 17.70 -04 48 52.81 5.76 (4.9 ± 1.3) x 10-3 22 3.757 3.796

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 18.43 -04 41 15.69 6.12 (3.3 ± 1.1) x 10-3 13 2.957 2.937
2 16 03 10.62 -04 42 37.45 6.31 (2.6 ± 1.0) x 10-3 11 2.860 2.593

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1603.6-0451 Swift-XRT image with known radio, optical and UV sources for 4FGL J1603.6-0451

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J160344.6-045335 16 03 44.69 -04 53 35.52 2.27 ROSAT
2RXS J160344.6-045335 16 03 44.69 -04 53 35.52 2.27 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
QORG J160343.0-044929 16 03 43.01 -04 49 28.92 2.25 QORGCAT
1 NVSS J160343-044928 16 03 43.01 -04 49 27.84 2.26 NVSS
2 NVSS J160331-045339 16 03 31.70 -04 53 39.84 2.95 NVSS
TGSSADR J160331.4-045339 16 03 31.39 -04 53 39.12 2.99 GMRTAS150M
3 NVSS J160333-045611 16 03 33.70 -04 56 11.04 4.85 NVSS
4 684- 14 16 04 00.55 -04 50 16.80 5.24 NLTT
5 NVSS J160343-045709 16 03 43.51 -04 57 10.08 5.60 NVSS
6 NVSS J160356-044724 16 03 56.59 -04 47 24.00 5.88 NVSS
7 NVSS J160318-044853 16 03 18.00 -04 48 54.00 6.16 NVSS
QORG J160317.9-044854 16 03 17.90 -04 48 54.00 6.18 QORGCAT
PGC 1053088 16 03 17.90 -04 48 54.00 6.18 PGC2003
NVSS J16032-0448 16 03 17.90 -04 48 54.00 6.18 VERONCAT
GLEAM J160335-044308 16 03 35.21 -04 43 09.12 8.57 GLEAMEGCAT
8 NVSS J160334-044304 16 03 34.99 -04 43 04.08 8.64 NVSS
TGSSADR J160335.0-044303 16 03 34.99 -04 43 04.08 8.65 GMRTAS150M
9 684- 21 16 03 56.42 -04 43 23.16 9.17 NLTT
GLEAM J160423-045153 16 04 23.11 -04 51 52.92 10.70 GLEAMEGCAT
TGSSADR J160424.2-045155 16 04 24.19 -04 51 56.16 10.97 GMRTAS150M
10 NVSS J160424-045155 16 04 24.31 -04 51 55.08 10.98 NVSS
11 NVSS J160410-044313 16 04 10.30 -04 43 13.08 11.25 NVSS
TGSSADR J160410.1-044311 16 04 10.20 -04 43 10.92 11.26 GMRTAS150M
GLEAM J160410-044309 16 04 10.10 -04 43 09.84 11.27 GLEAMEGCAT
12 NVSS J160314-044041 16 03 14.59 -04 40 41.88 12.65 NVSS
QORG J160424.8-044533 16 04 24.79 -04 45 33.12 12.66 QORGCAT
13 NVSS J160425-044535 16 04 25.01 -04 45 34.92 12.69 NVSS
14 PPM 199237 16 03 12.41 -04 40 10.92 13.37 PPM
BD-04 4029 16 03 12.38 -04 40 10.92 13.37 ACRS
SAO 140921 16 03 12.36 -04 40 10.92 13.38 SAO
15 NVSS J160301-044050 16 03 01.61 -04 40 50.16 14.44 NVSS

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