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 J1650.3-4600

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1650.3-4600 Swift-XRT detections in the field for 3FGL J1650.3-4600

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 49 53.54 -45 49 01.18 4.69 (5 ± 2) x 10-3 29 3.216 3.509
2 16 49 15.37 -46 00 27.21 4.51 (6 ± 2) x 10-3 32 3.338 3.280
3 16 49 10.22 -45 57 48.15 4.74 (5 ± 2) x 10-3 28 3.088 3.101

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 49 46.27 -45 57 34.86 4.07 (6 ± 2) x 10-3 67 4.036 2.951
2 16 49 36.64 -45 55 25.29 4.15 (5 ± 2) x 10-3 54 4.129 2.906
3 16 49 17.70 -45 56 03.16 4.23 (5 ± 2) x 10-3 41 2.776 2.889
4 16 49 54.82 -45 53 43.89 4.10 (6 ± 2) x 10-3 57 4.441 2.813
5 16 49 59.27 -45 58 14.06 4.32 (5 ± 2) x 10-3 50 2.959 2.790
6 16 49 55.12 -45 52 59.53 4.09 (5 ± 2) x 10-3 59 3.897 2.787
7 16 49 41.94 -45 58 40.36 4.09 (5 ± 2) x 10-3 55 3.576 2.749
8 16 49 32.22 -46 03 47.32 4.45 (4 ± 2) x 10-3 38 2.875 2.741
9 16 49 36.63 -45 55 25.50 4.15 (5 ± 2) x 10-3 54 3.497 2.648
10 16 49 38.65 -45 54 17.22 4.08 (5 ± 2) x 10-3 58 3.493 2.630
11 16 49 41.49 -45 49 46.12 4.25 (4 ± 2) x 10-3 41 3.635 2.583
12 16 49 54.32 -45 59 33.69 4.30 (4 ± 2) x 10-3 53 3.564 2.530
13 16 49 21.75 -45 54 32.79 4.19 (4 ± 2) x 10-3 56 2.625 2.478
14 16 49 40.46 -45 53 11.58 4.08 (4 ± 2) x 10-3 60 3.883 2.461
15 16 49 23.37 -45 59 03.69 4.29 (4 ± 2) x 10-3 41 3.608 2.404
16 16 49 41.49 -45 49 46.12 4.25 (4 ± 2) x 10-3 41 2.752 2.397
17 16 50 05.92 -45 54 25.41 4.14 (4 ± 2) x 10-3 64 2.891 2.327
18 16 49 50.29 -46 00 27.87 4.28 (3.3 ± 1.4) x 10-3 60 2.841 2.314
19 16 50 07.47 -45 52 18.91 4.21 (4 ± 2) x 10-3 47 3.065 2.304
20 16 49 25.64 -45 52 19.48 4.15 (3 ± 2) x 10-3 44 2.939 2.219
21 16 49 38.65 -45 54 17.20 4.08 (4 ± 2) x 10-3 58 2.939 2.139
22 16 49 18.29 -45 55 47.72 4.17 (3 ± 2) x 10-3 42 2.776 2.109
23 16 49 50.65 -45 55 34.32 4.11 (4 ± 2) x 10-3 56 2.695 2.050
24 16 49 46.92 -45 57 20.97 4.09 (3 ± 2) x 10-3 64 3.155 2.042
25 16 49 32.40 -45 56 46.91 4.26 (3 ± 2) x 10-3 39 2.746 1.874
26 16 50 05.88 -45 54 28.79 4.13 (3 ± 2) x 10-3 63 2.728 1.868
27 16 49 41.92 -45 52 29.88 4.19 (4 ± 2) x 10-3 48 3.195 1.866
28 16 49 41.94 -45 58 40.37 4.09 (3 ± 2) x 10-3 55 2.880 1.835
29 16 49 40.40 -45 53 17.13 4.08 (3 ± 2) x 10-3 61 3.061 1.832
30 16 49 21.30 -45 54 37.61 4.19 (3 ± 2) x 10-3 47 2.956 1.727
31 16 50 05.92 -45 54 27.66 4.14 (3 ± 2) x 10-3 61 2.891 1.723
32 16 50 18.69 -45 56 02.27 4.28 (2 ± 2) x 10-3 43 2.974 1.660
33 16 50 07.58 -45 52 23.63 4.19 (2.1 ± 1.4) x 10-3 48 3.361 1.528
34 16 50 07.26 -45 53 27.13 4.14 (3 ± 2) x 10-3 46 2.690 1.514
35 16 50 07.49 -45 52 15.83 4.22 (2.0 ± 1.4) x 10-3 46 3.216 1.501
36 16 49 25.64 -45 52 19.48 4.15 (2 ± 2) x 10-3 44 3.242 1.443

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1650.3-4600 Swift-XRT image with known radio, optical and UV sources for 3FGL J1650.3-4600

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X164926.07-460224.3 16 49 26.71 -46 02 24.36 10.13 CHANDRA
2 CXOGSG J164922.3-460420 16 49 22.34 -46 04 20.64 11.22 CHANDRA
X164922.31-460420.5 16 49 22.32 -46 04 20.64 11.22 CHANDRA
3 CXOGSG J164915.3-460832 16 49 15.36 -46 08 32.64 14.14 CHANDRA
X164915.22-460832.7 16 49 15.22 -46 08 32.64 14.16 CHANDRA
4 CXOGSG J164925.9-461112 16 49 25.90 -46 11 12.84 14.43 CHANDRA
X164925.93-461113.9 16 49 25.92 -46 11 13.92 14.43 CHANDRA
5 X164931.47-461236.6 16 49 31.46 -46 12 36.72 14.85 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PSR J1650-4601 16 50 18.60 -46 01 18.84 1.01 ATNFPULSAR
2 [SPT2015] ATCA J1650-4600 16 50 37.39 -46 00 14.04 2.44 FER2FUSRID
[PME2013] J1650-4600 16 50 37.39 -46 00 14.04 2.44 AT2FGLUS
3 [PME2013] J1650-4602 16 50 46.20 -46 02 27.96 4.22 AT2FGLUS
[SPT2015] ATCA J1650-4602 16 50 46.20 -46 02 27.96 4.22 FER2FUSRID
4 MGPS J165050-461045 16 50 50.69 -46 10 45.12 10.96 MGPS2
5 MGPS J165125-455513 16 51 25.10 -45 55 14.16 12.05 MGPS2

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