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 J1243.7+1727

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1243.7+1727 Swift-XRT detections in the field for 4FGL J1243.7+1727

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 44 10.78 +17 21 04.78 4.04 (1.7 ± 0.2) x 10-2 131 11.080 10.540
2 12 43 26.46 +17 29 39.98 4.20 (1.36 ± 0.14) x 10-2 104 9.387 9.419
3 12 43 51.63 +17 26 43.81 4.74 (4.4 ± 0.9) x 10-3 46 5.111 4.936
4 12 43 32.50 +17 20 51.95 4.76 (3.9 ± 0.8) x 10-3 44 4.905 4.773
5 12 44 12.20 +17 15 35.22 6.31 (2.4 ± 0.7) x 10-3 16 3.514 3.538
6 12 44 01.37 +17 29 37.06 4.80 (2.1 ± 0.7) x 10-3 32 3.350 3.192

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 12 43 44.56 +17 17 49.26 5.96 (1.5 ± 0.6) x 10-3 13 2.644 2.695
2 12 44 02.76 +17 37 08.87 6.21 (1.4 ± 0.5) x 10-3 11 2.795 2.646

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1243.7+1727 Swift-XRT image with known radio, optical and UV sources for 4FGL J1243.7+1727

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J124351.1+172641 12 43 51.12 +17 26 41.64 2.04 ROSAT
2RXS J124351.1+172641 12 43 51.12 +17 26 41.64 2.04 ROSAT
2 [GR2015] Com 206 12 43 29.40 +17 29 57.84 4.13 ROSAT
2RXS J124329.2+172957 12 43 29.26 +17 29 57.84 4.16 ROSAT
2RXS J124329.2+172957 12 43 29.26 +17 29 57.84 4.16 ROSAT
3 1240+1746 12 43 26.40 +17 29 35.88 4.54 ROSAT
4 2RXS J124410.3+172110 12 44 10.39 +17 21 10.08 9.05 ROSAT
2RXS J124410.3+172110 12 44 10.39 +17 21 10.08 9.05 ROSAT
[GR2015] Com 209 12 44 10.39 +17 21 07.92 9.07 ROSAT
1RXS J124410.2+172050 12 44 10.82 +17 21 04.68 9.18 ROSAT
1RXS J124410.2+172050 12 44 10.20 +17 20 50.64 9.25 ROSAT
2E 1241.6+1737 12 44 11.21 +17 21 03.24 9.27 EINSTEIN
2E 1241.6+1737 12 44 11.23 +17 21 02.88 9.27 EINSTEIN
5 2RXP J124406.7+171747 12 44 06.67 +17 17 47.76 11.18 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J124351+172643 12 43 51.31 +17 26 44.16 2.07 NVSS
QORG J124351.6+172644 12 43 51.60 +17 26 44.16 2.13 QORGCAT
FIRST J124351.7+172644 12 43 51.79 +17 26 44.16 2.17 FIRST
2 PHZ G292.01+80.21 12 43 41.81 +17 30 01.08 2.56 PLANCKHZSC
3 FIRST J124345.2+173051 12 43 45.19 +17 30 51.84 3.41 FIRST
4 LBQS 1240+1745 12 43 26.50 +17 29 34.80 4.51 LBQS
HB93 1240+177 12 43 26.52 +17 29 35.88 4.51 QSO
Q 1240+1746 12 43 26.50 +17 29 36.96 4.52 VERONCAT
QORG J124326.4+172937 12 43 26.40 +17 29 36.96 4.55 QORGCAT
5 FIRST J124356.2+172302 12 43 56.30 +17 23 03.12 5.42 FIRST
FIRST J124342.9+172147 12 43 42.89 +17 21 47.16 5.70 FIRST
6 NVSS J124342+172140 12 43 43.01 +17 21 41.04 5.80 NVSS
7 FIRST J124341.5+172105 12 43 41.50 +17 21 05.04 6.41 FIRST
8 FIRST J124328.8+172140 12 43 28.90 +17 21 41.04 6.74 FIRST
QORG J124324.4+173302 12 43 24.41 +17 33 02.16 7.14 QORGCAT
FIRST J124324.4+173302 12 43 24.50 +17 33 02.88 7.14 FIRST
9 NVSS J124324+173304 12 43 24.41 +17 33 03.96 7.17 NVSS
10 PGC 1530308 12 43 32.71 +17 20 03.84 7.83 PGC2003
11 PGC 1534965 12 43 14.81 +17 31 48.00 8.04 PGC2003
12 WDS J12433+1734 12 43 18.00 +17 34 00.12 8.87 WDS
MITG J1244+1721 12 44 09.60 +17 21 12.96 8.88 MITGB6CM
TXS 1241+176 12 44 10.39 +17 21 10.08 9.05 TEXAS
13 VRO17.12.03 12 44 15.79 +17 32 17.16 9.13 DIXON
TGSSADR J124410.7+172105 12 44 10.80 +17 21 06.12 9.16 GMRTAS150M
QORG J124410.8+172105 12 44 10.80 +17 21 05.04 9.18 QORGCAT
PG 1241+176 12 44 10.82 +17 21 04.68 9.19 PG
14 NVSS J124410+172104 12 44 10.80 +17 21 03.96 9.19 NVSS
PG 1241+176 12 44 10.80 +17 21 03.96 9.19 VERONCAT
FIRST J124410.8+172104 12 44 10.80 +17 21 03.96 9.19 FIRST
HB93 1241+176 12 44 10.85 +17 21 04.68 9.19 QSO
GLEAM J124410+172034 12 44 10.80 +17 20 35.16 9.54 GLEAMEGCAT
15 GB6 J1244+1720 12 44 10.61 +17 20 24.00 9.63 GB6
16 LHS 6238 12 44 05.71 +17 19 27.48 9.65 REVISEDLHS
1241+1736 12 44 10.39 +17 20 08.88 9.79 NORTH20CM
1241+1736 12 44 10.39 +17 20 08.88 9.79 NORTH6CM
Unknown 12 44 07.78 +17 19 29.64 9.91 NLTT
17 MITG J1244+1720 12 44 14.59 +17 20 51.00 10.00 MITGB6CM
FIRST J124410.7+171944 12 44 10.70 +17 19 45.12 10.14 FIRST
18 NVSS J124410+171944 12 44 10.70 +17 19 45.12 10.14 NVSS
TGSSADR J124410.7+171944 12 44 10.70 +17 19 45.12 10.14 GMRTAS150M
19 NVSS J124417+172055 12 44 17.40 +17 20 56.04 10.45 NVSS
TGSSADR J124417.3+172054 12 44 17.30 +17 20 53.88 10.46 GMRTAS150M
FIRST J124417.3+172053 12 44 17.30 +17 20 53.16 10.47 FIRST
20 PGC 42927 12 44 28.70 +17 27 56.16 10.86 PGC2003
21 FIRST J124345.2+173912 12 43 45.31 +17 39 12.96 11.74 FIRST
22 NVSS J124431+172507 12 44 31.70 +17 25 06.96 11.81 NVSS
FIRST J124432.5+172508 12 44 32.50 +17 25 08.04 11.99 FIRST
23 NVSS J124319+173828 12 43 19.70 +17 38 29.04 12.35 NVSS
FIRST J124319.6+173829 12 43 19.70 +17 38 29.04 12.36 FIRST
24 FIRST J124257.2+172124 12 42 57.31 +17 21 24.84 12.53 FIRST
25 MITG J1244+1717 12 44 22.20 +17 17 29.04 13.65 MITGB6CM
26 NVSS J124257+173728 12 42 57.19 +17 37 27.84 14.85 NVSS

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