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 J1550.6+6027

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1550.6+6027 Swift-XRT detections in the field for 4FGL J1550.6+6027


No detected excesses found.

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 50 52.91 +60 23 01.95 7.09 (3.2 ± 1.1) x 10-3 13 2.810 2.909
2 15 49 38.16 +60 21 13.10 8.62 (2.1 ± 0.9) x 10-3 7 2.376 2.419

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1550.6+6027 Swift-XRT image with known radio, optical and UV sources for 4FGL J1550.6+6027

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J155054.5+602300 15 50 54.50 +60 22 59.88 5.05 ROSAT
2RXS J155053.8+602258 15 50 53.88 +60 22 58.08 5.05 ROSAT
2RXS J155053.8+602258 15 50 53.88 +60 22 58.08 5.05 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 FIRST J155037.1+602731 15 50 37.10 +60 27 30.96 0.33 FIRST
WN 1549.4+6038 15 50 22.10 +60 29 39.12 2.90 WENSS
TGSSADR J155021.9+602947 15 50 22.01 +60 29 47.04 3.00 GMRTAS150M
FIRST J155021.9+602946 15 50 21.91 +60 29 47.04 3.00 FIRST
2 NVSS J155021+602951 15 50 21.79 +60 29 51.00 3.06 NVSS
3 PGC 2601599 15 50 50.11 +60 23 48.12 4.11 PGC2003
7C 155006.3+604001 15 51 00.00 +60 31 05.16 4.22 UC7C151MHZ
WN 1550.0+6040 15 50 59.59 +60 31 12.00 4.29 WENSS
FIRST J155059.9+603111 15 50 59.90 +60 31 12.00 4.31 FIRST
TGSSADR J155100.2+603110 15 51 00.19 +60 31 10.92 4.32 GMRTAS150M
4 NVSS J155059+603112 15 51 00.00 +60 31 13.08 4.33 NVSS
QORG J155100.4+603117 15 51 00.41 +60 31 17.04 4.42 QORGCAT
FIRST J155007.4+603008 15 50 07.51 +60 30 09.00 4.64 FIRST
5 NVSS J155007+603012 15 50 07.51 +60 30 12.96 4.67 NVSS
FIRST J155008.0+603020 15 50 07.99 +60 30 20.16 4.69 FIRST
6 QORG J155054.0+602255 15 50 54.00 +60 22 54.84 5.11 QORGCAT
7 FIRST J155122.1+602812 15 51 22.10 +60 28 12.00 5.28 FIRST
QORG J155122.2+602810 15 51 22.20 +60 28 09.84 5.29 QORGCAT
8 PGC 2602489 15 51 28.30 +60 27 54.00 6.02 PGC2003
9 FIRST J155011.8+603300 15 50 11.90 +60 33 01.08 6.31 FIRST
FIRST J155101.9+603525 15 51 01.99 +60 35 25.08 8.20 FIRST
QORG J155102.0+603525 15 51 01.99 +60 35 25.08 8.20 QORGCAT
10 PGC 2604046 15 51 15.19 +60 34 40.08 8.24 PGC2003
11 NVSS J155102+603528 15 51 02.59 +60 35 27.96 8.28 NVSS
QORG J155010.6+603623 15 50 10.61 +60 36 23.04 9.38 QORGCAT
FIRST J155010.5+603623 15 50 10.61 +60 36 23.04 9.39 FIRST
12 NVSS J155010+603623 15 50 10.61 +60 36 24.12 9.40 NVSS
13 NVSS J154930+602347 15 49 30.00 +60 23 47.04 9.42 NVSS
FIRST J154928.1+602337 15 49 28.10 +60 23 38.04 9.70 FIRST
14 PGC 2600927 15 51 33.50 +60 20 29.04 9.83 PGC2003
15 FIRST J155014.1+603714 15 50 14.21 +60 37 14.88 10.04 FIRST
16 GB6 J1551+6021 15 51 47.71 +60 21 47.88 10.28 GB6
17 WDS J15493+6032 15 49 18.00 +60 31 59.88 10.91 WDS
HIP 77482 15 49 15.70 +60 31 38.64 11.04 HIPPARCOS
SAO 16860 15 49 15.62 +60 31 37.92 11.05 SAO
HD 142089 15 49 15.60 +60 31 39.00 11.06 HIC
BD+60 1637 15 49 15.60 +60 31 39.36 11.06 ACRS
PPM 19602 15 49 15.58 +60 31 38.64 11.06 PPM
FIRST J155146.4+601921 15 51 46.39 +60 19 21.00 11.75 FIRST
18 FIRST J155058.8+603918 15 50 58.80 +60 39 19.08 11.86 FIRST
19 NVSS J155146+601910 15 51 46.80 +60 19 10.92 11.91 NVSS
20 PGC 2604617 15 51 41.21 +60 37 14.16 12.19 PGC2003
21 NVSS J155156+603547 15 51 56.90 +60 35 48.12 12.50 NVSS
FIRST J155156.7+603550 15 51 56.81 +60 35 51.00 12.52 FIRST
WN 1551.0+6044 15 51 58.20 +60 35 49.92 12.64 WENSS
WN 1548.1+6041 15 49 03.10 +60 32 48.12 12.91 WENSS
7C 154809.2+604157 15 49 03.31 +60 32 53.88 12.93 UC7C151MHZ
TGSSADR J154902.8+603247 15 49 02.81 +60 32 48.12 12.94 GMRTAS150M
22 NVSS J154902+603248 15 49 02.59 +60 32 48.84 12.97 NVSS
FIRST J154902.3+603245 15 49 02.40 +60 32 45.96 12.98 FIRST
FIRST J154902.8+603257 15 49 02.90 +60 32 57.84 13.00 FIRST
23 NVSS J155212+601904 15 52 12.10 +60 19 04.08 14.33 NVSS
QORG J155212.0+601901 15 52 12.00 +60 19 00.84 14.35 QORGCAT
FIRST J155212.0+601901 15 52 12.00 +60 19 00.84 14.35 FIRST
24 V338 Dra 15 49 11.14 +60 38 02.76 15.00 GCVS
FIRST J155214.4+601713 15 52 14.50 +60 17 13.92 15.73 FIRST
25 NVSS J155214+601708 15 52 14.30 +60 17 08.88 15.77 NVSS

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