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 J1716.1+2309

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1716.1+2309 Swift-XRT detections in the field for 4FGL J1716.1+2309

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 15 48.67 +23 20 09.87 4.72 (6.3 ± 1.1) x 10-3 48 6.061 5.646
2 17 16 39.93 +23 07 22.68 5.17 (3.4 ± 0.8) x 10-3 33 4.532 4.104
3 17 16 03.11 +23 08 20.64 5.44 (3.4 ± 0.8) x 10-3 27 3.720 4.019
4 17 15 55.58 +23 14 28.27 6.21 (2.6 ± 0.7) x 10-3 17 3.369 3.470

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 17 16 53.15 +23 06 02.37 6.78 (2.5 ± 1.0) x 10-3 9 2.414 2.466
2 17 15 42.70 +23 08 43.84 5.64 (1.5 ± 0.6) x 10-3 17 2.669 2.447
3 17 15 47.64 +23 08 54.25 5.89 (1.2 ± 0.6) x 10-3 19 2.494 2.271

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1716.1+2309 Swift-XRT image with known radio, optical and UV sources for 4FGL J1716.1+2309


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
FIRST J171612.5+230958 17 16 12.60 +23 09 57.96 1.18 FIRST
1 NVSS J171612+231003 17 16 12.41 +23 10 03.00 1.20 NVSS
FIRST J171603.2+230822 17 16 03.19 +23 08 22.92 1.49 FIRST
QORG J171603.2+230823 17 16 03.19 +23 08 22.92 1.50 QORGCAT
2 NVSS J171602+230816 17 16 02.90 +23 08 17.16 1.61 NVSS
3 FIRST J171600.5+230758 17 16 00.50 +23 07 59.16 2.23 FIRST
PGC 1682036 17 16 00.50 +23 07 57.00 2.25 PGC2003
QORG J171600.4+230757 17 16 00.41 +23 07 57.00 2.27 QORGCAT
4 FIRST J171632.4+231140 17 16 32.40 +23 11 39.84 6.03 FIRST
QORG J171632.5+231140 17 16 32.50 +23 11 39.84 6.04 QORGCAT
5 HIP 84468 17 16 07.61 +23 15 37.08 6.31 HIPPARCOS
BD+23 3071 17 16 07.58 +23 15 37.08 6.31 ACRS
SAO 84960 17 16 07.61 +23 15 37.08 6.31 HIC
PPM 105719 17 16 07.58 +23 15 37.08 6.31 PPM
SAO 84960 17 16 07.66 +23 15 37.08 6.31 SAO
6 NVSS J171619+231528 17 16 19.30 +23 15 28.08 6.66 NVSS
QORG J171618.9+231532 17 16 18.91 +23 15 32.04 6.68 QORGCAT
PGC 1684226 17 16 19.01 +23 15 32.04 6.69 PGC2003
7 WDS J17161+2316 17 16 06.00 +23 16 00.12 6.71 WDS
FIRST J171619.0+231532 17 16 19.10 +23 15 33.12 6.71 FIRST
8 FIRST J171554.9+231541 17 15 54.91 +23 15 42.12 7.08 FIRST
9 NVSS J171640+230729 17 16 40.01 +23 07 28.92 7.52 NVSS
QORG J171640.0+230727 17 16 40.01 +23 07 27.12 7.52 QORGCAT
PGC 1681873 17 16 40.10 +23 07 27.12 7.54 PGC2003
FIRST J171640.0+230725 17 16 40.10 +23 07 26.04 7.55 FIRST
10 PGC 1682446 17 16 45.50 +23 09 24.84 8.55 PGC2003
11 WDS J17161+2318 17 16 06.00 +23 18 00.00 8.70 WDS
12 FIRST J171531.3+231228 17 15 31.30 +23 12 28.08 9.07 FIRST
FIRST J171533.8+230414 17 15 33.91 +23 04 14.16 9.41 FIRST
13 NVSS J171533+230409 17 15 33.60 +23 04 09.84 9.49 NVSS
MITG J1716+2305a 17 16 52.90 +23 05 53.88 10.81 MITGB6CM
GB6 J1716+2305 17 16 53.21 +23 05 49.92 10.89 GB6
MITG J1716+2305b 17 16 53.21 +23 05 47.04 10.91 MITGB6CM
QORG J171653.6+230553 17 16 53.59 +23 05 53.16 10.96 QORGCAT
TGSSADR J171653.6+230555 17 16 53.71 +23 05 54.96 10.97 GMRTAS150M
FIRST J171653.6+230553 17 16 53.71 +23 05 53.16 10.98 FIRST
14 1714+2308 17 16 52.70 +23 05 16.08 10.98 NORTH6CM
FIRST J17168+2305 17 16 53.71 +23 05 53.16 10.99 VERONCAT
15 NVSS J171653+230553 17 16 53.71 +23 05 53.16 11.00 NVSS
16 FIRST J171632.6+231849 17 16 32.69 +23 18 48.96 11.03 FIRST
17 PGC 1685536 17 15 47.21 +23 19 54.12 11.65 PGC2003
18 FIRST J171633.9+225849 17 16 34.01 +22 58 50.16 12.03 FIRST
19 NVSS J171633+225803 17 16 33.31 +22 58 03.00 12.64 NVSS
FIRST J171633.2+225757 17 16 33.19 +22 57 57.96 12.71 FIRST
TGSSADR J171633.3+225757 17 16 33.31 +22 57 57.96 12.72 GMRTAS150M
20 PPM 105733 17 16 51.05 +23 19 58.80 14.50 PPM
BD+23 3072 17 16 51.02 +23 19 59.16 14.50 ACRS

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