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 J1550.4-5354c

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1550.4-5354c Swift-XRT detections in the field for 4FGL J1550.4-5354c


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 49 19.53 -53 47 58.31 5.53 (2.3 ± 0.9) x 10-3 15 2.842 2.468
2 15 49 12.78 -53 46 56.90 5.53 (2.0 ± 0.9) x 10-3 12 2.566 2.247

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1550.4-5354c Swift-XRT image with known radio, optical and UV sources for 4FGL J1550.4-5354c

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 4XMM J154927.2-535633 15 49 27.22 -53 56 33.36 8.86 XMM-NEWTON
2 CXOGSG J154932.4-535025 15 49 32.45 -53 50 25.08 8.89 CHANDRA
4XMM J154932.4-535026 15 49 32.40 -53 50 26.16 8.89 XMM-NEWTON
X154932.34-535026.1 15 49 32.35 -53 50 26.16 8.89 CHANDRA
3 2CXO J155007.3-534527 15 50 07.32 -53 45 27.72 9.49 CHANDRA
4 4XMM J154926.1-534905 15 49 26.18 -53 49 05.16 10.35 XMM-NEWTON
5 4XMM J154915.7-535555 15 49 15.74 -53 55 55.92 10.41 XMM-NEWTON
6 4XMMs J155052.2-540417 15 50 52.27 -54 04 17.76 10.49 XMM-NEWTON
4XMM J155052.2-540417 15 50 52.32 -54 04 17.76 10.49 XMM-NEWTON
4XMM J155052.2-540417 15 50 52.15 -54 04 18.48 10.49 XMM-NEWTON
4XMM J155052.2-540417 15 50 52.30 -54 04 17.76 10.49 XMM-NEWTON
4XMM J155052.2-540417 15 50 52.39 -54 04 17.76 10.50 XMM-NEWTON
7 4XMM J154916.3-535737 15 49 16.32 -53 57 37.80 10.68 XMM-NEWTON
8 4XMM J154916.6-535017 15 49 16.63 -53 50 17.88 11.05 XMM-NEWTON
9 4XMM J154922.4-534827 15 49 22.49 -53 48 27.36 11.15 XMM-NEWTON
4XMM J154911.3-535152 15 49 11.33 -53 51 52.56 11.30 XMM-NEWTON
1RXS J154921.6-534807 15 49 21.60 -53 48 07.56 11.45 ROSAT
2RXS J154921.6-534806 15 49 21.67 -53 48 06.12 11.45 ROSAT
10 2CXO J154909.0-535229 15 49 09.02 -53 52 30.00 11.50 CHANDRA
4XMM J154908.9-535231 15 49 08.93 -53 52 32.16 11.51 XMM-NEWTON
CXOGSG J154908.8-535230 15 49 08.90 -53 52 30.36 11.52 CHANDRA
X154908.90-535229.0 15 49 08.90 -53 52 28.92 11.52 CHANDRA
11 2CXO J154909.5-535147 15 49 09.58 -53 51 47.16 11.57 CHANDRA
12 4XMM J154923.6-534721 15 49 23.64 -53 47 21.12 11.66 XMM-NEWTON
13 4XMM J155020.8-540617 15 50 20.83 -54 06 16.92 11.76 XMM-NEWTON
14 1WGA J1549.2-5349 15 49 12.60 -53 49 34.32 11.89 ROSAT
15 4XMMs J155010.3-540615 15 50 10.37 -54 06 15.12 11.92 XMM-NEWTON
4XMM J155009.7-540615 15 50 09.79 -54 06 15.48 11.94 XMM-NEWTON
16 CXOGSG J154911.9-534846 15 49 11.93 -53 48 46.80 12.33 CHANDRA
17 4XMMs J155101.8-540556 15 51 01.85 -54 05 56.04 12.55 XMM-NEWTON
4XMM J155101.8-540556 15 51 01.85 -54 05 56.04 12.55 XMM-NEWTON
4XMM J155101.8-540556 15 51 01.87 -54 05 58.20 12.59 XMM-NEWTON
4XMM J154909.7-534832 15 49 09.72 -53 48 32.76 12.73 XMM-NEWTON
18 1RXS J154927.1-534503 15 49 27.10 -53 45 03.60 12.85 ROSAT
19 Unknown 15 49 05.26 -53 49 29.28 12.91 EXOSAT
4XMM J154909.4-534748 15 49 09.41 -53 47 48.12 13.13 XMM-NEWTON
20 X154909.57-534723.8 15 49 09.58 -53 47 23.64 13.33 CHANDRA
CXOGSG J154909.5-534724 15 49 09.50 -53 47 24.36 13.33 CHANDRA
21 4XMMs J155122.4-540502 15 51 22.49 -54 05 02.76 13.40 XMM-NEWTON
22 1WGA J1549.1-5346 15 49 11.40 -53 46 47.64 13.44 ROSAT
23 CXOGSG J154915.6-534409 15 49 15.67 -53 44 09.24 14.68 CHANDRA
2CXO J154915.5-534408 15 49 15.53 -53 44 08.88 14.69 CHANDRA
X154915.54-534407.9 15 49 15.53 -53 44 07.80 14.70 CHANDRA
24 4XMMs J155132.0-540536 15 51 31.99 -54 05 36.60 14.73 XMM-NEWTON
4XMM J155131.9-540537 15 51 31.94 -54 05 37.32 14.73 XMM-NEWTON
25 4XMM J154912.1-534435 15 49 12.19 -53 44 35.88 14.74 XMM-NEWTON
26 4XMM J155126.5-540631 15 51 26.59 -54 06 31.68 14.94 XMM-NEWTON
27 4XMM J154914.9-534325 15 49 14.95 -53 43 24.96 15.28 XMM-NEWTON
28 CXOGSG J154916.2-534245 15 49 16.25 -53 42 45.72 15.64 CHANDRA
X154916.19-534244.7 15 49 16.20 -53 42 44.64 15.66 CHANDRA
4XMM J154916.0-534244 15 49 16.08 -53 42 43.92 15.67 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J155113-535900 15 51 13.61 -53 58 59.88 8.32 MGPS2
2 NSV 20409 15 50 34.80 -53 45 52.92 8.77 GCVSNSVARS
3 MGPS J155137-535303 15 51 37.39 -53 53 03.12 10.65 MGPS2
4 DKM327.4+00.4 15 49 13.99 -53 49 03.00 11.93 DIXON
KES27 15 49 13.99 -53 49 03.00 11.93 DIXON
PMN J1549-5349 15 49 12.79 -53 49 21.00 11.96 PMN
5 PMN J1551-5404 15 51 14.59 -54 04 09.84 11.99 PMN
6 MGPS J154922-540556 15 49 22.70 -54 05 56.04 14.68 MGPS2
7 MGPS J155134-534241 15 51 34.10 -53 42 41.04 15.56 MGPS2

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