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.

3FGL J1549.4-4832

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1549.4-4832 Swift-XRT detections in the field for 3FGL J1549.4-4832


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 48 41.34 -48 24 46.57 7.71 (3 ± 2) x 10-3 8 2.227 2.173

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1549.4-4832 Swift-XRT image with known radio, optical and UV sources for 3FGL J1549.4-4832

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J154916.3-483354 15 49 16.39 -48 33 55.08 2.76 XMM-NEWTON
3XMM J154917.0-483414 15 49 17.11 -48 34 14.88 2.88 XMM-NEWTON
2 3XMM J154934.2-483605 15 49 34.25 -48 36 06.12 3.86 XMM-NEWTON
3 3XMM J154929.4-483613 15 49 29.47 -48 36 13.68 3.92 XMM-NEWTON
4 3XMM J154938.9-483632 15 49 38.95 -48 36 32.76 4.50 XMM-NEWTON
5 3XMM J154930.4-483658 15 49 30.46 -48 36 59.04 4.68 XMM-NEWTON
6 3XMM J154900.1-483355 15 49 00.12 -48 33 55.80 5.20 XMM-NEWTON
7 3XMM J154920.1-483742 15 49 20.14 -48 37 42.60 5.65 XMM-NEWTON
8 3XMM J154948.1-483724 15 49 48.14 -48 37 24.60 5.92 XMM-NEWTON
9 3XMM J154855.9-483023 15 48 55.92 -48 30 23.40 5.95 XMM-NEWTON
10 3XMM J154901.9-483614 15 49 01.99 -48 36 14.76 6.08 XMM-NEWTON
11 3XMM J154940.4-483830 15 49 40.46 -48 38 30.48 6.44 XMM-NEWTON
12 3XMM J154854.9-483507 15 48 54.96 -48 35 07.80 6.44 XMM-NEWTON
13 3XMM J154958.5-483709 15 49 58.56 -48 37 09.48 6.78 XMM-NEWTON
14 3XMM J154909.3-483811 15 49 09.34 -48 38 12.12 6.81 XMM-NEWTON
15 3XMM J154944.4-483854 15 49 44.47 -48 38 54.60 7.03 XMM-NEWTON
16 3XMM J154923.0-483938 15 49 23.30 -48 39 38.52 7.43 XMM-NEWTON
17 3XMM J155005.0-483658 15 50 05.30 -48 36 58.32 7.45 XMM-NEWTON
18 3XMM J154849.6-483543 15 48 49.63 -48 35 41.28 7.48 XMM-NEWTON
3XMM J154849.6-483543 15 48 49.68 -48 35 46.68 7.52 XMM-NEWTON
19 3XMM J154853.7-482728 15 48 53.81 -48 27 28.80 7.69 XMM-NEWTON
20 3XMM J154918.8-483953 15 49 18.94 -48 39 50.04 7.75 XMM-NEWTON
3XMM J154918.8-483953 15 49 18.82 -48 39 54.72 7.83 XMM-NEWTON
21 3XMM J154854.6-483742 15 48 54.62 -48 37 41.88 7.95 XMM-NEWTON
22 3XMM J155007.1-483721 15 50 07.20 -48 37 21.72 7.97 XMM-NEWTON
23 3XMM J154914.1-483953 15 49 14.18 -48 39 53.28 8.02 XMM-NEWTON
24 3XMM J154902.6-483858 15 49 02.64 -48 38 58.56 8.06 XMM-NEWTON
25 3XMM J154842.5-483424 15 48 42.53 -48 34 24.60 8.13 XMM-NEWTON
26 3XMM J154946.2-484008 15 49 46.22 -48 40 08.76 8.29 XMM-NEWTON
27 3XMM J154953.1-483939 15 49 53.18 -48 39 39.24 8.29 XMM-NEWTON
28 3XMM J154913.3-484026 15 49 13.32 -48 40 26.40 8.59 XMM-NEWTON
29 3XMM J154930.2-484101 15 49 30.24 -48 41 01.32 8.72 XMM-NEWTON
30 3XMM J154945.0-484111 15 49 45.70 -48 41 11.40 9.23 XMM-NEWTON
31 3XMM J154838.9-483628 15 48 39.41 -48 36 26.64 9.38 XMM-NEWTON
32 3XMM J154934.9-484142 15 49 34.99 -48 41 42.36 9.44 XMM-NEWTON
3XMM J154838.9-483628 15 48 38.76 -48 36 31.68 9.46 XMM-NEWTON
33 3XMM J154846.5-483859 15 48 46.56 -48 38 59.64 9.81 XMM-NEWTON
34 3XMM J154842.8-483830 15 48 42.91 -48 38 29.76 9.94 XMM-NEWTON
3XMM J154842.8-483830 15 48 42.74 -48 38 30.84 9.97 XMM-NEWTON
35 3XMM J154839.9-482638 15 48 39.91 -48 26 39.12 10.03 XMM-NEWTON
36 3XMM J154936.6-484229 15 49 36.60 -48 42 29.16 10.24 XMM-NEWTON
37 3XMM J154926.2-484234 15 49 26.23 -48 42 33.84 10.28 XMM-NEWTON
38 3XMM J155003.8-484058 15 50 03.84 -48 40 58.80 10.33 XMM-NEWTON
39 3XMM J154844.9-483936 15 48 44.93 -48 39 34.20 10.40 XMM-NEWTON
3XMM J154844.9-483936 15 48 44.90 -48 39 37.08 10.44 XMM-NEWTON
40 3XMM J154921.0-484241 15 49 21.91 -48 42 41.76 10.49 XMM-NEWTON
41 3XMM J154946.4-484229 15 49 46.46 -48 42 29.88 10.55 XMM-NEWTON
42 3XMM J155010.0-484049 15 50 10.80 -48 40 49.44 10.80 XMM-NEWTON
43 3XMM J154933.2-484319 15 49 33.22 -48 43 19.20 11.03 XMM-NEWTON
44 3XMM J154840.4-484007 15 48 40.56 -48 40 05.52 11.28 XMM-NEWTON
3XMM J154840.4-484007 15 48 40.32 -48 40 08.40 11.35 XMM-NEWTON
45 3XMM J154922.2-484341 15 49 22.27 -48 43 41.16 11.45 XMM-NEWTON
46 3XMM J154850.3-484144 15 48 50.40 -48 41 44.52 11.48 XMM-NEWTON
47 3XMM J154820.3-483221 15 48 20.33 -48 32 21.84 11.52 XMM-NEWTON
48 3XMM J154903.8-484301 15 49 03.89 -48 43 01.20 11.55 XMM-NEWTON
49 3XMM J154925.3-484350 15 49 25.32 -48 43 50.16 11.56 XMM-NEWTON
50 3XMM J154833.0-483908 15 48 33.60 -48 39 09.00 11.63 XMM-NEWTON
51 3XMM J155018.0-484048 15 50 18.50 -48 40 48.00 11.64 XMM-NEWTON
52 3XMM J154819.9-483509 15 48 19.99 -48 35 09.96 11.93 XMM-NEWTON
53 3XMM J155007.0-484236 15 50 07.80 -48 42 36.36 11.99 XMM-NEWTON
54 3XMM J154947.7-484400 15 49 47.71 -48 44 00.24 12.06 XMM-NEWTON
55 3XMM J154855.0-484256 15 48 55.01 -48 42 56.52 12.10 XMM-NEWTON
56 3XMM J154911.5-484403 15 49 11.59 -48 44 03.48 12.14 XMM-NEWTON
57 3XMM J155023.8-484049 15 50 23.81 -48 40 49.44 12.32 XMM-NEWTON
58 3XMM J155020.2-484132 15 50 20.28 -48 41 31.92 12.43 XMM-NEWTON
59 3XMM J154828.8-483944 15 48 28.97 -48 39 42.84 12.51 XMM-NEWTON
3XMM J154828.8-483944 15 48 28.68 -48 39 45.36 12.57 XMM-NEWTON
60 3XMM J154954.7-484417 15 49 54.74 -48 44 17.16 12.67 XMM-NEWTON
61 3XMM J154858.1-484357 15 48 58.10 -48 43 57.72 12.79 XMM-NEWTON
62 3XMM J155012.3-484305 15 50 12.31 -48 43 05.52 12.86 XMM-NEWTON
63 3XMM J154844.7-484257 15 48 44.76 -48 42 57.96 13.02 XMM-NEWTON
64 3XMM J155037.4-483908 15 50 37.44 -48 39 08.28 13.08 XMM-NEWTON
65 3XMM J155027.6-484125 15 50 27.67 -48 41 25.80 13.20 XMM-NEWTON
66 X154831.58-482314.4 15 48 31.58 -48 23 14.28 13.26 CHANDRA
67 3XMM J154820.4-483903 15 48 20.45 -48 39 03.24 13.33 XMM-NEWTON
68 3XMM J155016.2-484313 15 50 16.25 -48 43 13.80 13.34 XMM-NEWTON
69 3XMM J154817.2-483919 15 48 17.47 -48 39 18.00 13.88 XMM-NEWTON
70 3XMM J154841.2-484337 15 48 41.26 -48 43 37.56 13.89 XMM-NEWTON
3XMM J154817.2-483919 15 48 17.59 -48 39 20.16 13.95 XMM-NEWTON
71 3XMM J154839.3-484401 15 48 39.36 -48 44 01.32 14.39 XMM-NEWTON
72 3XMM J154834.3-484404 15 48 34.39 -48 44 04.20 14.92 XMM-NEWTON
73 3XMM J155036.3-484231 15 50 36.31 -48 42 31.32 14.99 XMM-NEWTON
74 XMMSL2 J154819.4-482113 15 48 19.56 -48 21 12.96 16.10 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PSR J1548-4821 15 48 23.30 -48 21 50.04 15.23 ATNFPULSAR
PSR J1548-4821 15 48 23.30 -48 21 50.04 15.23 PMPULSAR

Penn State University Goddard Space Flight Center Swift