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 J1632.8+3838

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1632.8+3838 Swift-XRT detections in the field for 3FGL J1632.8+3838


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 31 45.03 +38 33 40.92 7.09 (2.5 ± 0.9) x 10-3 10 2.456 2.661
2 16 32 51.12 +38 49 50.58 6.52 (2.8 ± 1.0) x 10-3 11 2.543 2.648
3 16 33 10.26 +38 48 51.53 7.27 (2.2 ± 0.9) x 10-3 9 2.339 2.447
4 16 32 32.35 +38 48 22.59 5.64 (2.4 ± 1.0) x 10-3 20 2.765 2.320

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1632.8+3838 Swift-XRT image with known radio, optical and UV sources for 3FGL J1632.8+3838

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SDSS J163316.87+384014.4 16 33 16.87 +38 40 14.52 5.69 ROSAT
2 1RXS J163319.4+383958 16 33 19.39 +38 39 58.68 6.12 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
FIRST J163302.3+384228 16 33 02.40 +38 42 28.08 4.50 FIRST
1 FIRST J163308.8+384115 16 33 08.81 +38 41 16.08 4.62 FIRST
2 NVSS J163301+384244 16 33 01.61 +38 42 45.00 4.64 NVSS
FIRST J163240.0+383405 16 32 40.01 +38 34 05.16 5.06 FIRST
3 NVSS J163239+383400 16 32 40.01 +38 34 00.84 5.13 NVSS
4 FIRST J163254.0+383301 16 32 54.10 +38 33 02.16 5.93 FIRST
FIRST J163316.9+383426 16 33 16.90 +38 34 27.12 7.08 FIRST
5 NVSS J163317+383426 16 33 17.40 +38 34 26.04 7.16 NVSS
WN 1631.6+3847 16 33 24.60 +38 40 50.16 7.30 WENSS
6 NVSS J163324+384043 16 33 24.79 +38 40 44.04 7.31 NVSS
FIRST J163324.9+384039 16 33 25.01 +38 40 40.08 7.33 FIRST
7 FIRST J163224.4+384804 16 32 24.50 +38 48 05.04 10.35 FIRST
GB6 J1632+3827 16 32 36.41 +38 27 25.92 11.67 GB6
FIRST J163236.0+382724 16 32 36.10 +38 27 24.12 11.72 FIRST
8 NVSS J163235+382724 16 32 35.90 +38 27 24.12 11.72 NVSS
9 FIRST J163348.0+383531 16 33 48.00 +38 35 30.84 12.09 FIRST
10 FIRST J163332.0+384955 16 33 32.11 +38 49 55.92 13.94 FIRST

Penn State University Goddard Space Flight Center Swift