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 J1616.6-5341

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1616.6-5341 Swift-XRT detections in the field for 4FGL J1616.6-5341

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 16 46.73 -53 43 40.77 5.08 (1.4 ± 0.3) x 10-2 35 5.405 5.347

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 16 49.83 -53 41 43.86 5.96 (5 ± 2) x 10-3 21 3.043 2.905

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1616.6-5341 Swift-XRT image with known radio, optical and UV sources for 4FGL J1616.6-5341

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J161649.2-534351 16 16 49.20 -53 43 51.60 3.19 ROSAT
2RXS J161649.2-534353 16 16 49.27 -53 43 53.04 3.21 ROSAT
2 XMMSL2 J161534.9-533234 16 15 34.90 -53 32 34.08 12.62 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 V528 Nor 16 16 46.82 -53 41 09.60 1.57 GCVS
2 V525 Nor 16 16 21.43 -53 40 46.56 2.26 GCVS
3 PPM 344766 16 16 46.80 -53 43 42.24 2.86 PPM
CD-53 6536 16 16 46.85 -53 43 42.24 2.86 ACRS
SAO 243529 16 16 46.82 -53 43 43.32 2.87 SAO
WDS J16168-5344 16 16 48.00 -53 43 59.88 3.20 WDS
4 PPM 344769 16 16 58.90 -53 41 46.32 3.38 PPM
SAO 243533 16 16 58.90 -53 41 46.32 3.38 SAO
CD-53 6537 16 16 58.92 -53 41 46.68 3.38 ACRS
HD 146059 16 16 58.94 -53 41 46.32 3.39 HIC
HIP 79787 16 16 58.99 -53 41 45.60 3.39 HIPPARCOS
WDS J16170-5342 16 17 00.00 -53 42 00.00 3.58 WDS
5 MGPS J161621-533825 16 16 21.10 -53 38 25.08 3.66 MGPS2
6 V523 Nor 16 16 11.18 -53 38 30.48 4.66 GCVS
7 V527 Nor 16 16 35.93 -53 36 38.16 4.67 GCVS
8 V532 Nor 16 17 13.68 -53 38 01.68 6.44 GCVS
9 HN Nor 16 15 51.38 -53 39 29.16 6.90 GCVS
10 SAO 243526 16 16 43.13 -53 48 39.60 7.42 SAO
HR 6055 16 16 43.10 -53 48 39.96 7.43 BSC5P
CD-53 6533 16 16 43.27 -53 48 39.96 7.43 ACRS
PPM 344765 16 16 43.27 -53 48 39.96 7.43 PPM
HIP 79754 16 16 43.27 -53 48 39.96 7.43 HIPPARCOS
V368 Nor 16 16 43.27 -53 48 39.96 7.43 GCVS
NSV 7574 16 16 43.32 -53 48 40.32 7.43 HIC
11 MGPS J161611-534811 16 16 11.90 -53 48 11.16 7.77 MGPS2
12 V476 Nor 16 17 29.06 -53 41 31.92 7.82 GCVS
13 MGPS J161554-533607 16 15 54.50 -53 36 06.84 8.08 MGPS2
14 MGPS J161541-534321 16 15 40.99 -53 43 21.00 8.43 MGPS2
15 MGPS J161617-533320 16 16 17.59 -53 33 20.88 8.44 MGPS2
16 -537629 16 17 26.14 -53 36 39.24 8.73 WACKERLING
17 CD-53 6540 16 17 20.47 -53 47 40.92 9.13 ACRS
PPM 344778 16 17 20.47 -53 47 41.28 9.13 PPM
SAO 243543 16 17 20.59 -53 47 42.36 9.15 SAO
18 MGPS J161605-534917 16 16 05.50 -53 49 17.04 9.18 MGPS2
19 NSV 7560 16 15 56.90 -53 48 28.08 9.23 GCVSNSVARS
20 V475 Nor 16 17 13.54 -53 33 54.72 9.23 GCVS
21 V469 Nor 16 15 42.98 -53 34 48.72 10.23 GCVS
22 V530 Nor 16 17 07.08 -53 32 07.44 10.26 GCVS
23 [SPT2015] ATCA J1617-5339 16 17 44.71 -53 39 02.88 10.39 FER2FUSRID
[PME2013] J1617-5339 16 17 44.81 -53 39 03.96 10.40 AT2FGLUS
ESO 161320-5324.7 16 17 14.64 -53 32 09.60 10.77 ESOUPPSALA
24 [PME2013] J1617-5332 16 17 14.21 -53 32 07.08 10.78 AT2FGLUS
[SPT2015] ATCA J1617-5332 16 17 14.30 -53 32 06.00 10.79 FER2FUSRID
He 2-153 16 17 14.04 -53 32 03.48 10.82 PLNEBULAE
25 V470 Nor 16 15 48.77 -53 33 04.68 10.84 GCVS
26 V477 Nor 16 17 47.11 -53 35 34.44 11.96 GCVS
27 V534 Nor 16 17 39.29 -53 33 35.64 12.12 GCVS
28 V517 Nor 16 15 21.34 -53 46 45.84 12.36 GCVS
29 V531 Nor 16 17 10.06 -53 29 20.76 12.97 GCVS
30 PPM 344787 16 17 48.55 -53 33 13.32 13.43 PPM
CD-53 6550 16 17 48.58 -53 33 13.32 13.43 ACRS
SAO 243553 16 17 48.60 -53 33 10.44 13.46 SAO
31 MGPS J161531-535202 16 15 31.51 -53 52 01.92 14.38 MGPS2
32 Sa 1-4 16 15 24.00 -53 52 00.12 15.11 PLNEBULAE
33 MGPS J161741-535259 16 17 41.21 -53 52 59.88 15.12 MGPS2
34 WRA1441 16 15 21.12 -53 51 35.64 15.14 WACKERLING
ESO 161123-5344.0 16 15 19.20 -53 51 28.80 15.27 ESOUPPSALA

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