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 47.58 +15 16 23.21 3.53 (4.00 ± 0.07) x 10-1 3895 55.680 59.980
2 06 48 53.88 +15 22 26.06 4.15 (9.3 ± 1.1) x 10-3 100 8.746 8.632
3 06 48 45.48 +15 05 15.66 4.39 (4.6 ± 0.8) x 10-3 57 6.575 5.917
4 06 48 30.91 +15 22 47.26 4.71 (3.5 ± 0.7) x 10-3 41 5.035 4.969
5 06 47 42.30 +15 15 10.70 6.04 (2.8 ± 0.7) x 10-3 21 3.853 4.310
6 06 48 00.75 +15 20 55.86 4.60 (2.2 ± 0.6) x 10-3 39 4.444 3.629
7 06 48 13.25 +15 21 12.83 4.92 (2.0 ± 0.6) x 10-3 27 3.566 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 47.59 +15 16 23.24 3.53 (3.7 ± 1.2) x 10-3 3882 8.641 3.104
2 06 48 21.57 +15 21 41.39 4.92 (1.4 ± 0.5) x 10-3 24 2.922 2.924
3 06 48 43.28 +15 12 39.67 5.40 (1.4 ± 0.5) x 10-3 21 2.771 2.923
4 06 48 24.23 +15 13 24.10 5.70 (1.3 ± 0.5) x 10-3 18 2.643 2.776
5 06 47 55.87 +15 20 58.63 4.92 (1.2 ± 0.4) x 10-3 21 2.885 2.738
6 06 47 51.11 +15 09 09.24 5.64 (1.2 ± 0.4) x 10-3 15 2.544 2.622
7 06 48 54.18 +15 07 56.96 4.95 (1.3 ± 0.5) x 10-3 28 2.641 2.571
8 06 48 47.58 +15 16 23.27 3.53 (10 ± 7) x 10-4 3848 2.686 1.383
9 06 48 47.59 +15 16 23.24 3.53 N/A 3876 5.142 N/A
10 06 48 47.60 +15 16 23.25 3.53 N/A 3860 2.870 N/A
11 06 48 47.59 +15 16 23.24 3.53 N/A 3882 4.855 N/A
12 06 48 47.58 +15 16 23.21 3.53 N/A 3895 3.235 N/A
13 06 48 47.59 +15 16 23.24 3.53 N/A 3871 3.544 N/A
14 06 48 47.59 +15 16 23.24 3.53 N/A 3871 4.320 N/A
15 06 48 47.59 +15 16 23.24 3.53 N/A 3871 3.986 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 XMMSL1 J064847.6+151626 06 48 47.64 +15 16 25.68 0.50 XMM-NEWTON
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
1 NVSS J064847+151625 06 48 47.59 +15 16 24.96 0.50 NVSS
QORG J064847.6+151625 06 48 47.59 +15 16 24.96 0.51 QORGCAT
0645+1520 06 48 47.81 +15 16 50.88 0.67 NORTH6CM
2 BD+15 1327 06 48 35.76 +15 16 41.16 3.38 ACRS
SAO 96132 06 48 35.74 +15 16 41.52 3.38 SAO
PPM 123069 06 48 35.71 +15 16 41.52 3.39 PPM
3 NVSS J064913+152222 06 49 13.51 +15 22 23.16 8.31 NVSS
4 PGC 19638 06 48 30.60 +15 24 46.08 9.57 PGC2003
5 NVSS J064808+151327 06 48 08.40 +15 13 27.84 10.37 NVSS
6 NVSS J064845+150542 06 48 45.79 +15 05 42.00 10.71 NVSS
7 NVSS J064934+151529 06 49 34.90 +15 15 29.16 10.93 NVSS
8 BD+15 1322 06 48 03.24 +15 17 30.48 11.27 ACRS
PPM 123056 06 48 03.22 +15 17 31.20 11.27 PPM
9 NVSS J064931+152217 06 49 31.70 +15 22 18.12 11.72 NVSS
10 NVSS J064916+152615 06 49 16.61 +15 26 15.00 11.81 NVSS
11 NVSS J064845+150430 06 48 45.31 +15 04 31.08 11.91 NVSS
12 PGC 1476249 06 49 39.19 +15 08 08.88 14.50 PGC2003
13 PPM 123098 06 49 35.18 +15 27 08.64 15.37 PPM
BD+15 1331 06 49 35.18 +15 27 09.00 15.38 ACRS
SAO 96154 06 49 35.21 +15 27 09.00 15.38 SAO

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