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.

1FGL J0648.8+1516

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0648.8+1516 Swift-XRT detections in the field for 1FGL J0648.8+1516

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 06 48 47.57 +15 16 23.18 3.53 (4.01 ± 0.07) x 10-1 3939 55.950 60.300
2 06 48 53.86 +15 22 25.87 4.14 (9.4 ± 1.1) x 10-3 102 8.849 8.708
3 06 48 45.52 +15 05 15.58 4.38 (4.7 ± 0.8) x 10-3 58 6.642 6.000
4 06 48 30.91 +15 22 47.26 4.69 (3.5 ± 0.7) x 10-3 41 5.024 4.951
5 06 47 42.30 +15 15 10.70 6.04 (2.8 ± 0.6) x 10-3 21 3.844 4.310
6 06 48 00.75 +15 20 55.86 4.60 (2.2 ± 0.6) x 10-3 39 4.431 3.629
7 06 48 13.24 +15 21 15.66 4.90 (1.9 ± 0.5) x 10-3 28 3.552 3.592

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 06 48 47.57 +15 16 23.24 3.53 (4.6 ± 0.3) x 10-2 3926 13.720 17.220
2 06 48 43.13 +15 12 34.55 5.40 (1.4 ± 0.5) x 10-3 21 2.751 2.903
3 06 48 21.57 +15 21 41.39 4.90 (1.4 ± 0.5) x 10-3 24 2.903 2.901
4 06 48 24.23 +15 13 24.10 5.64 (1.3 ± 0.5) x 10-3 18 2.630 2.756
5 06 47 55.87 +15 20 58.63 4.92 (1.2 ± 0.4) x 10-3 21 2.867 2.738
6 06 47 51.11 +15 09 09.24 5.64 (1.1 ± 0.4) x 10-3 15 2.539 2.622
7 06 48 54.13 +15 07 56.39 4.92 (1.3 ± 0.5) x 10-3 29 2.624 2.571
8 06 49 10.02 +15 08 31.07 5.02 (1.3 ± 0.5) x 10-3 19 2.578 2.551
9 06 48 47.58 +15 16 23.26 3.53 (1.4 ± 0.7) x 10-3 3892 2.845 2.054
10 06 48 47.57 +15 16 23.24 3.53 N/A 3920 5.133 N/A
11 06 48 47.58 +15 16 23.26 3.53 N/A 3904 2.858 N/A
12 06 48 47.57 +15 16 23.24 3.53 N/A 3920 5.756 N/A
13 06 48 47.57 +15 16 23.24 3.53 N/A 3926 4.847 N/A
14 06 48 47.58 +15 16 23.21 3.53 N/A 3939 3.222 N/A
15 06 48 47.57 +15 16 23.24 3.53 N/A 3915 3.664 N/A
16 06 48 47.57 +15 16 23.24 3.53 N/A 3915 4.424 N/A
17 06 48 47.57 +15 16 23.24 3.53 N/A 3914 3.793 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0648.8+1516 Swift-XRT image with known radio, optical and UV sources for 1FGL J0648.8+1516

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1RXS J064847.8+151626 06 48 47.81 +15 16 26.04 0.46 ROSAT
1RXS J064847.8+151626 06 48 47.81 +15 16 26.04 0.46 ROSAT
1 XMMSL2 J064847.7+151625 06 48 47.78 +15 16 25.32 0.47 XMM-NEWTON
2RXS J064847.7+151626 06 48 47.76 +15 16 26.40 0.47 ROSAT
[MML2015] 5BZB J0648+1516 06 48 47.64 +15 16 24.96 0.50 null
2 1RXS J064854.7+152242 06 48 54.70 +15 22 41.88 6.44 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
GB6 J0648+1516 06 48 48.41 +15 16 41.16 0.44 GB6
TGSSADR J064847.6+151624 06 48 47.71 +15 16 24.96 0.49 GMRTAS150M
[MML2015] 5BZB J0648+1516 06 48 47.59 +15 16 24.96 0.50 ROMABZCAT
1 NVSS J064847+151625 06 48 47.59 +15 16 24.96 0.50 NVSS
0645+1520 06 48 47.81 +15 16 50.88 0.67 NORTH6CM
2 NVSS J064913+152222 06 49 13.51 +15 22 23.16 8.31 NVSS
3 NVSS J064808+151327 06 48 08.40 +15 13 27.84 10.37 NVSS
TGSSADR J064845.8+150544 06 48 45.79 +15 05 44.16 10.68 GMRTAS150M
4 NVSS J064845+150542 06 48 45.79 +15 05 42.00 10.71 NVSS
5 NVSS J064934+151529 06 49 34.90 +15 15 29.16 10.93 NVSS
VLSSr J064916.1+152609 06 49 16.20 +15 26 09.96 11.69 VLSSR
6 NVSS J064931+152217 06 49 31.70 +15 22 18.12 11.72 NVSS
TGSSADR J064916.5+152614 06 49 16.51 +15 26 15.00 11.79 GMRTAS150M
7 NVSS J064916+152615 06 49 16.61 +15 26 15.00 11.81 NVSS
8 NVSS J064845+150430 06 48 45.31 +15 04 31.08 11.91 NVSS
TGSSADR J064845.4+150427 06 48 45.41 +15 04 27.12 11.97 GMRTAS150M

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