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 J0537.5+0959

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0537.5+0959 Swift-XRT detections in the field for 4FGL J0537.5+0959

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 37 45.85 +09 57 59.14 4.81 (10 ± 2) x 10-3 47 6.299 6.242
2 05 37 09.88 +09 51 25.88 5.64 (3.6 ± 1.1) x 10-3 18 3.617 3.416
3 05 38 03.62 +10 05 17.87 6.65 (2.6 ± 0.8) x 10-3 14 3.044 3.167

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 05 38 15.54 +09 53 51.83 7.27 (2.2 ± 0.8) x 10-3 9 2.642 2.752
2 05 37 49.74 +09 56 07.92 7.09 (1.8 ± 0.7) x 10-3 9 2.551 2.484
3 05 37 32.20 +09 51 31.58 6.04 (2.0 ± 0.8) x 10-3 13 2.565 2.336

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0537.5+0959 Swift-XRT image with known radio, optical and UV sources for 4FGL J0537.5+0959

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMMs J053715.6+095750 05 37 15.60 +09 57 50.04 3.92 XMM-NEWTON
4XMM J053715.5+095750 05 37 15.60 +09 57 50.40 3.92 XMM-NEWTON
XMMU J053715.5+095749 05 37 15.50 +09 57 49.68 3.95 XMM-NEWTON
2 2RXP J053746.3+095808 05 37 46.30 +09 58 08.04 4.00 ROSAT
1WGA J0537.7+0958 05 37 46.20 +09 58 00.84 4.01 ROSAT
3 4XMMs J053710.1+095526 05 37 10.18 +09 55 26.40 6.25 XMM-NEWTON
4XMM J053710.1+095526 05 37 10.15 +09 55 26.04 6.26 XMM-NEWTON
XMMU J053710.1+095526 05 37 10.10 +09 55 26.04 6.27 XMM-NEWTON
4 4XMMs J053706.9+095635 05 37 06.96 +09 56 35.16 6.36 XMM-NEWTON
4XMM J053705.7+095620 05 37 05.76 +09 56 21.12 6.73 XMM-NEWTON
5 4XMMs J053705.5+095610 05 37 05.52 +09 56 10.32 6.86 XMM-NEWTON
XMMU J053705.5+095609 05 37 05.50 +09 56 09.96 6.87 XMM-NEWTON
6 4XMM J053659.9+095639 05 36 59.98 +09 56 39.48 7.95 XMM-NEWTON
7 4XMMs J053711.3+095159 05 37 11.33 +09 51 59.04 8.60 XMM-NEWTON
4XMM J053711.2+095158 05 37 11.30 +09 51 58.68 8.61 XMM-NEWTON
8 4XMMs J053659.9+095449 05 36 59.90 +09 54 49.32 8.71 XMM-NEWTON
4XMM J053659.8+095450 05 36 59.86 +09 54 50.04 8.72 XMM-NEWTON
9 XMMU J053655.6+100108 05 36 55.61 +10 01 08.04 8.84 XMM-NEWTON
4XMMs J053655.5+100110 05 36 55.54 +10 01 10.92 8.87 XMM-NEWTON
4XMM J053655.3+100110 05 36 55.37 +10 01 10.56 8.90 XMM-NEWTON
10 4XMMs J053654.7+095745 05 36 54.72 +09 57 45.00 8.95 XMM-NEWTON
4XMM J053654.6+095746 05 36 54.65 +09 57 46.80 8.96 XMM-NEWTON
11 4XMM J053657.9+100314 05 36 57.91 +10 03 14.76 9.03 XMM-NEWTON
4XMMs J053657.9+100315 05 36 57.91 +10 03 15.12 9.03 XMM-NEWTON
XMMU J053657.6+100316 05 36 57.60 +10 03 15.84 9.10 XMM-NEWTON
12 4XMMs J053710.4+095128 05 37 10.46 +09 51 28.08 9.15 XMM-NEWTON
4XMM J053710.4+095125 05 37 10.44 +09 51 25.92 9.19 XMM-NEWTON
XMMU J053710.3+095127 05 37 10.30 +09 51 27.00 9.19 XMM-NEWTON
13 4XMMs J053701.1+095322 05 37 01.20 +09 53 22.92 9.27 XMM-NEWTON
14 1WGA J0537.3+0949 05 37 22.90 +09 49 41.52 9.66 ROSAT
2RXP J053722.8+094939 05 37 22.87 +09 49 40.08 9.69 ROSAT
15 4XMMs J053655.7+100339 05 36 55.73 +10 03 39.24 9.69 XMM-NEWTON
4XMM J053655.6+100339 05 36 55.66 +10 03 39.24 9.71 XMM-NEWTON
16 4XMM J053657.7+095328 05 36 57.72 +09 53 28.68 9.89 XMM-NEWTON
4XMMs J053657.7+095328 05 36 57.72 +09 53 28.32 9.89 XMM-NEWTON
XMMU J053657.6+095328 05 36 57.60 +09 53 28.32 9.92 XMM-NEWTON
4XMMs J053656.4+095338 05 36 56.47 +09 53 38.76 10.05 XMM-NEWTON
4XMM J053656.4+095338 05 36 56.47 +09 53 38.40 10.05 XMM-NEWTON
XMMU J053656.4+095338 05 36 56.40 +09 53 38.04 10.07 XMM-NEWTON
4XMMs J053656.2+095330 05 36 56.21 +09 53 30.48 10.18 XMM-NEWTON
4XMM J053656.2+095330 05 36 56.21 +09 53 30.48 10.18 XMM-NEWTON
17 4XMM J053649.2+095820 05 36 49.25 +09 58 19.92 10.21 XMM-NEWTON
4XMMs J053649.2+095820 05 36 49.25 +09 58 20.64 10.22 XMM-NEWTON
XMMU J053649.2+095820 05 36 49.20 +09 58 20.64 10.23 XMM-NEWTON
18 XMMSL2 J053721.5+094910 05 37 21.55 +09 49 09.84 10.24 XMM-NEWTON
19 4XMMs J053657.0+095252 05 36 57.07 +09 52 52.68 10.38 XMM-NEWTON
4XMM J053656.9+095252 05 36 57.00 +09 52 53.04 10.39 XMM-NEWTON
XMMU J053656.9+095253 05 36 56.90 +09 52 53.76 10.40 XMM-NEWTON
20 4XMM J053649.0+095659 05 36 49.08 +09 56 59.28 10.45 XMM-NEWTON
21 XMMU J053654.5+095326 05 36 54.50 +09 53 26.52 10.57 XMM-NEWTON
4XMMs J053654.5+095326 05 36 54.50 +09 53 26.16 10.57 XMM-NEWTON
4XMM J053654.4+095326 05 36 54.46 +09 53 26.16 10.58 XMM-NEWTON
22 4XMMs J053646.7+095942 05 36 46.80 +09 59 42.72 10.80 XMM-NEWTON
4XMM J053646.7+095942 05 36 46.80 +09 59 43.08 10.80 XMM-NEWTON
23 4XMMs J053650.2+095422 05 36 50.26 +09 54 22.68 11.02 XMM-NEWTON
4XMM J053650.2+095422 05 36 50.26 +09 54 23.04 11.02 XMM-NEWTON
XMMU J053650.2+095423 05 36 50.21 +09 54 23.04 11.04 XMM-NEWTON
XMMU J053650.7+095405 05 36 50.71 +09 54 05.40 11.06 XMM-NEWTON
24 4XMMs J053656.1+095204 05 36 56.11 +09 52 04.08 11.07 XMM-NEWTON
4XMM J053656.0+095204 05 36 56.09 +09 52 04.44 11.07 XMM-NEWTON
XMMU J053656.0+095204 05 36 55.99 +09 52 04.80 11.08 XMM-NEWTON
25 4XMM J053646.8+095622 05 36 46.90 +09 56 22.92 11.12 XMM-NEWTON
XMMU J053646.9+095622 05 36 46.90 +09 56 21.84 11.12 XMM-NEWTON
4XMMs J053646.8+095623 05 36 46.87 +09 56 22.92 11.12 XMM-NEWTON
26 1WGA J0538.2+0956 05 38 14.30 +09 56 02.04 11.21 ROSAT
27 XMMU J053652.7+095257 05 36 52.70 +09 52 57.36 11.21 XMM-NEWTON
4XMM J053652.6+095257 05 36 52.68 +09 52 57.72 11.21 XMM-NEWTON
4XMMs J053652.6+095257 05 36 52.68 +09 52 57.36 11.21 XMM-NEWTON
28 4XMMs J053644.7+095924 05 36 44.76 +09 59 25.08 11.29 XMM-NEWTON
4XMM J053644.6+095924 05 36 44.66 +09 59 24.36 11.31 XMM-NEWTON
2RXS J053814.8+095608 05 38 14.88 +09 56 08.16 11.32 ROSAT
2RXP J053814.9+095606 05 38 14.88 +09 56 06.00 11.33 ROSAT
XMMU J053644.5+095926 05 36 44.50 +09 59 26.16 11.35 XMM-NEWTON
29 1WGA J0538.1+0953 05 38 11.50 +09 53 19.68 11.64 ROSAT
30 4XMMs J053646.3+095445 05 36 46.37 +09 54 45.36 11.75 XMM-NEWTON
4XMM J053646.3+095446 05 36 46.32 +09 54 46.44 11.75 XMM-NEWTON
XMMU J053646.3+095446 05 36 46.30 +09 54 46.80 11.76 XMM-NEWTON
2RXP J053813.1+095336 05 38 13.08 +09 53 35.88 11.85 ROSAT
31 2RXP J053815.3+095350 05 38 15.29 +09 53 49.92 12.23 ROSAT
1WGA J0537.0+0949 05 37 01.39 +09 49 11.64 12.29 ROSAT
2RXP J053701.3+094911 05 37 01.30 +09 49 10.92 12.31 ROSAT
32 4XMMs J053654.8+095023 05 36 54.84 +09 50 23.28 12.43 XMM-NEWTON
33 4XMM J053646.1+095314 05 36 46.18 +09 53 14.64 12.44 XMM-NEWTON
XMMU J053654.8+095022 05 36 54.79 +09 50 22.92 12.44 XMM-NEWTON
4XMMs J053646.1+095313 05 36 46.18 +09 53 13.56 12.44 XMM-NEWTON
4XMM J053654.7+095022 05 36 54.79 +09 50 22.92 12.44 XMM-NEWTON
34 XMMU J053700.8+094906 05 37 00.79 +09 49 06.24 12.45 XMM-NEWTON
XMMU J053646.1+095314 05 36 46.10 +09 53 14.28 12.46 XMM-NEWTON
4XMMs J053700.8+094904 05 37 00.89 +09 49 04.44 12.46 XMM-NEWTON
XMMSL2 J053700.7+094906 05 37 00.72 +09 49 05.88 12.46 XMM-NEWTON
4XMM J053700.8+094904 05 37 00.84 +09 49 04.44 12.47 XMM-NEWTON
2RXS J053700.8+094854 05 37 00.89 +09 48 54.36 12.60 ROSAT
1RXS J053700.8+094855 05 37 00.79 +09 48 55.08 12.60 ROSAT
35 4XMMs J053647.0+100553 05 36 47.06 +10 05 53.16 12.65 XMM-NEWTON
4XMM J053647.0+100552 05 36 47.04 +10 05 52.80 12.66 XMM-NEWTON
XMMU J053647.0+100552 05 36 46.99 +10 05 52.44 12.66 XMM-NEWTON
4XMMs J053653.2+095019 05 36 53.26 +09 50 18.96 12.76 XMM-NEWTON
4XMM J053653.1+095019 05 36 53.18 +09 50 18.96 12.77 XMM-NEWTON
XMMU J053653.2+095018 05 36 53.21 +09 50 18.24 12.78 XMM-NEWTON
36 4XMM J053644.1+095205 05 36 44.18 +09 52 05.88 13.44 XMM-NEWTON
4XMMs J053644.1+095205 05 36 44.16 +09 52 05.52 13.44 XMM-NEWTON
XMMU J053644.1+095205 05 36 44.09 +09 52 05.52 13.46 XMM-NEWTON
37 4XMMs J053651.0+094712 05 36 51.07 +09 47 12.12 15.42 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 QORG J053735.8+095752 05 37 35.81 +09 57 51.84 1.82 QORGCAT
2 NVSS J053737+095712 05 37 37.30 +09 57 11.88 2.56 NVSS
3 NVSS J053745+095756 05 37 46.01 +09 57 56.16 3.98 NVSS
QORG J053746.6+095809 05 37 46.61 +09 58 09.12 4.07 QORGCAT
4 NVSS J053719+095341 05 37 19.01 +09 53 40.92 6.17 NVSS
PGC 165438 05 37 19.30 +09 53 39.12 6.17 PGC2003
QORG J053719.2+095339 05 37 19.20 +09 53 39.12 6.18 QORGCAT
5 0534+0951 05 37 16.61 +09 53 24.36 6.71 ZCAT
6 NVSS J053659+095626 05 36 59.59 +09 56 26.88 8.10 NVSS
7 PGC 97108 05 37 27.70 +09 49 45.12 9.44 PGC2003
TGSSADR J053735.0+094852 05 37 34.99 +09 48 51.84 10.35 GMRTAS150M
8 NVSS J053735+094849 05 37 35.21 +09 48 50.04 10.39 NVSS
9 QORG J053804.7+100524 05 38 04.70 +10 05 24.00 10.46 QORGCAT
10 QORG J053814.3+095601 05 38 14.30 +09 56 00.96 11.21 QORGCAT
QORG J053815.4+095607 05 38 15.41 +09 56 07.08 11.44 QORGCAT
11 NVSS J053817+095948 05 38 17.09 +09 59 48.12 11.46 NVSS
12 QORG J053811.7+095325 05 38 11.71 +09 53 25.08 11.64 QORGCAT
13 NVSS J053744+101028 05 37 44.21 +10 10 27.84 11.80 NVSS
QORG J053709.4+101005 05 37 09.41 +10 10 05.16 12.11 QORGCAT
14 NVSS J053709+101008 05 37 09.50 +10 10 08.04 12.14 NVSS
15 QORG J053815.6+095356 05 38 15.60 +09 53 56.04 12.25 QORGCAT
BD+09 907 05 38 15.65 +09 53 54.96 12.27 ACRS
PPM 149255 05 38 15.67 +09 53 54.96 12.28 PPM
SAO 112983 05 38 15.70 +09 53 54.24 12.29 SAO
16 BD+09 897 05 36 46.22 +09 53 14.28 12.43 ACRS
PPM 149217 05 36 46.20 +09 53 14.28 12.43 PPM
SAO 112956 05 36 46.08 +09 53 15.00 12.45 SAO
17 QORG J053700.8+094849 05 37 00.79 +09 48 48.96 12.68 QORGCAT
18 NVSS J053811+094910 05 38 11.71 +09 49 09.84 14.22 NVSS

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