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 J1519.7+6727

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1519.7+6727 Swift-XRT detections in the field for 4FGL J1519.7+6727

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 19 19.47 +67 36 51.24 7.48 (2.5 ± 0.8) x 10-3 11 2.518 3.008
2 15 20 37.48 +67 32 58.79 6.78 (2.9 ± 1.0) x 10-3 12 3.013 3.007

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 15 20 03.94 +67 30 56.65 6.65 (2.3 ± 0.9) x 10-3 14 2.440 2.666

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1519.7+6727 Swift-XRT image with known radio, optical and UV sources for 4FGL J1519.7+6727

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2RXS J152000.2+672625 15 20 00.22 +67 26 25.44 1.71 ROSAT
2RXS J152000.2+672625 15 20 00.22 +67 26 25.44 1.71 ROSAT
1 4XMM J152000.9+672613 15 20 00.96 +67 26 13.92 1.89 XMM-NEWTON
2 4XMM J151958.4+672542 15 19 58.49 +67 25 42.60 2.13 XMM-NEWTON
3 4XMM J151930.6+673013 15 19 30.62 +67 30 13.68 3.12 XMM-NEWTON
4 4XMM J152004.5+673057 15 20 04.51 +67 30 57.24 3.88 XMM-NEWTON
5 4XMM J151854.9+672745 15 18 54.98 +67 27 45.36 4.92 XMM-NEWTON
6 4XMM J151959.7+673223 15 19 59.76 +67 32 23.64 5.08 XMM-NEWTON
7 4XMM J152030.1+673253 15 20 30.19 +67 32 53.16 6.84 XMM-NEWTON
8 4XMM J152026.5+673320 15 20 26.50 +67 33 20.16 7.01 XMM-NEWTON
9 4XMM J152036.8+673300 15 20 36.84 +67 33 00.36 7.34 XMM-NEWTON
10 2RXS J152042.2+673309 15 20 42.22 +67 33 09.00 7.79 ROSAT
2RXS J152042.2+673309 15 20 42.22 +67 33 09.00 7.79 ROSAT
11 4XMM J151926.2+671948 15 19 26.26 +67 19 48.36 7.92 XMM-NEWTON
12 4XMM J151837.2+673235 15 18 37.27 +67 32 35.52 8.34 XMM-NEWTON
13 4XMM J151922.7+673646 15 19 22.73 +67 36 46.08 9.55 XMM-NEWTON
14 4XMM J152001.8+671755 15 20 01.87 +67 17 55.68 9.67 XMM-NEWTON
4XMM J151919.3+673656 15 19 19.39 +67 36 56.16 9.79 XMM-NEWTON
15 4XMM J152025.0+673705 15 20 25.10 +67 37 05.88 10.30 XMM-NEWTON
16 2RXS J152140.5+672841 15 21 40.56 +67 28 41.52 11.02 ROSAT
2RXS J152140.5+672841 15 21 40.56 +67 28 41.52 11.02 ROSAT
1RXS J152141.0+672846 15 21 40.99 +67 28 46.56 11.07 ROSAT
17 2RXS J152132.7+673302 15 21 32.81 +67 33 02.88 11.61 ROSAT
2RXS J152132.7+673302 15 21 32.81 +67 33 02.88 11.61 ROSAT
18 4XMM J152149.4+672849 15 21 49.44 +67 28 49.80 11.88 XMM-NEWTON
19 2RXS J152104.5+673731 15 21 04.51 +67 37 31.44 12.52 ROSAT
2RXS J152104.5+673731 15 21 04.51 +67 37 31.44 12.52 ROSAT
20 4XMM J151800.5+673515 15 18 00.55 +67 35 15.36 12.75 XMM-NEWTON
1RXS J152105.6+673745 15 21 05.59 +67 37 45.12 12.76 ROSAT
21 4XMM J151754.2+673552 15 17 54.19 +67 35 52.80 13.61 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J151953+672650 15 19 53.71 +67 26 49.92 0.97 NVSS
2 NVSS J152000+672613 15 20 00.41 +67 26 12.84 1.86 NVSS
3 15191+6741 15 19 35.95 +67 30 13.68 2.92 ZCAT
4 UZC J151930.2+673016 15 19 30.19 +67 30 15.84 3.18 UZC
PGC 54700 15 19 30.00 +67 30 15.84 3.19 PGC2003
5 1519+6740 15 20 28.70 +67 29 58.92 4.77 NORTH6CM
1519+6740 15 20 28.70 +67 29 58.92 4.77 NORTH20CM
GB6 J1520+6730 15 20 29.21 +67 30 15.84 4.96 GB6
TGSSADR J151959.9+673221 15 20 00.00 +67 32 21.12 5.04 GMRTAS150M
6 NVSS J151959+673225 15 19 59.30 +67 32 26.16 5.10 NVSS
TGSSADR J152029.9+673028 15 20 29.90 +67 30 28.08 5.14 GMRTAS150M
7C 152000.4+674113 15 20 29.90 +67 30 29.88 5.15 UC7C151MHZ
WN 1520.0+6741 15 20 30.00 +67 30 29.16 5.16 WENSS
VLSSr J152029.9+673030 15 20 29.90 +67 30 29.88 5.16 VLSSR
TXS 1520+676 15 20 30.00 +67 30 30.96 5.17 TEXAS
7 NVSS J152030+673030 15 20 30.10 +67 30 30.96 5.18 NVSS
8C 1520+676 15 20 30.50 +67 30 41.04 5.31 RRS8C38MHZ
WN 1519.3+6743 15 19 52.39 +67 32 48.84 5.36 WENSS
TGSSADR J151949.7+673255 15 19 49.80 +67 32 54.96 5.45 GMRTAS150M
8 NVSS J151949+673258 15 19 49.80 +67 32 57.84 5.50 NVSS
TGSSADR J151853.6+673038 15 18 53.71 +67 30 38.88 5.94 GMRTAS150M
9 NVSS J151853+673041 15 18 53.81 +67 30 42.12 5.96 NVSS
WN 1518.3+6741 15 18 52.70 +67 30 38.16 6.01 WENSS
10 BD+67 882 15 19 33.58 +67 18 44.28 8.83 ACRS
PPM 19397 15 19 33.62 +67 18 43.92 8.84 PPM
SAO 16695 15 19 33.31 +67 18 43.92 8.84 SAO
11 PGC 2702251 15 20 50.40 +67 34 13.08 9.11 PGC2003
12 PGC 2702086 15 21 10.90 +67 33 39.96 10.19 PGC2003
13 BD+67 886 15 21 28.75 +67 22 47.28 10.91 ACRS
PPM 19413 15 21 29.04 +67 22 47.28 10.93 PPM
SAO 16708 15 21 29.11 +67 22 47.64 10.93 SAO
14 PGC 2703310 15 19 12.00 +67 38 12.12 11.20 PGC2003
15 NVSS J152045+671657 15 20 45.50 +67 16 58.08 11.97 NVSS
16 NVSS J151811+671943 15 18 11.11 +67 19 42.96 12.00 NVSS
WN 1517.6+6730 15 18 12.00 +67 19 36.12 12.01 WENSS
WN 1520.4+6749 15 20 55.61 +67 38 36.96 12.95 WENSS
TGSSADR J152055.8+673836 15 20 55.90 +67 38 35.88 12.96 GMRTAS150M
17 NVSS J152055+673838 15 20 55.90 +67 38 38.04 12.98 NVSS
7C 152026.3+674924 15 20 54.79 +67 38 42.00 12.99 UC7C151MHZ
VLSSr J152056.4+673836 15 20 56.50 +67 38 36.96 12.99 VLSSR
GB6 J1521+6738 15 21 51.19 +67 38 15.00 16.07 GB6

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