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.

1FGL J1511.9-2253

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J1511.9-2253 Swift-XRT detections in the field for 1FGL J1511.9-2253

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 12 12.82 -22 55 06.79 4.26 (2.6 ± 0.3) x 10-2 98 9.102 9.341
2 15 11 37.08 -22 57 44.38 5.00 (10 ± 2) x 10-3 37 5.354 5.283
3 15 12 11.76 -23 02 28.12 5.40 (4.8 ± 1.2) x 10-3 23 4.256 3.845
4 15 12 05.75 -23 01 51.04 5.59 (3.9 ± 1.1) x 10-3 22 3.603 3.354

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1511.9-2253 Swift-XRT image with known radio, optical and UV sources for 1FGL J1511.9-2253

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 X151159.14-225338.9 15 11 59.14 -22 53 38.76 0.58 CHANDRA
CXOGSG J151159.1-225338 15 11 59.14 -22 53 38.76 0.58 CHANDRA
2 X151155.69-225233.3 15 11 55.68 -22 52 33.24 0.84 CHANDRA
CXOGSG J151155.6-225232 15 11 55.68 -22 52 32.88 0.85 CHANDRA
3 1RXS J151158.6-225421 15 11 58.61 -22 54 21.60 1.08 ROSAT
4 CXOGSG J151156.1-225433 15 11 56.11 -22 54 33.12 1.23 CHANDRA
5 X151201.61-225409.5 15 12 01.61 -22 54 09.36 1.34 CHANDRA
CXOGSG J151201.6-225409 15 12 01.63 -22 54 09.36 1.35 CHANDRA
X151201.64-225409.4 15 12 01.63 -22 54 09.36 1.35 CHANDRA
6 CXOGSG J151200.9-225219 15 12 00.89 -22 52 19.56 1.36 CHANDRA
X151200.91-225218.7 15 12 00.91 -22 52 18.84 1.37 CHANDRA
7 CXOGSG J151204.3-225340 15 12 04.39 -22 53 40.92 1.74 CHANDRA
X151204.43-225340.0 15 12 04.44 -22 53 39.84 1.74 CHANDRA
8 CXOGSG J151149.3-225311 15 11 49.39 -22 53 11.04 1.76 CHANDRA
CXOGSG J151205.4-225343 15 12 05.40 -22 53 43.44 1.97 CHANDRA
X151205.43-225345.5 15 12 05.42 -22 53 45.60 1.99 CHANDRA
9 X151204.84-225438.0 15 12 04.85 -22 54 38.16 2.22 CHANDRA
CXOGSG J151204.8-225438 15 12 04.82 -22 54 38.16 2.22 CHANDRA
10 X151147.55-225253.3 15 11 47.54 -22 52 53.40 2.22 CHANDRA
X151204.85-225438.3 15 12 04.85 -22 54 38.16 2.23 CHANDRA
CXOGSG J151147.5-225253 15 11 47.52 -22 52 53.40 2.23 CHANDRA
11 X151208.15-225213.3 15 12 08.16 -22 52 13.44 2.80 CHANDRA
CXOGSG J151208.1-225212 15 12 08.16 -22 52 12.00 2.81 CHANDRA
12 CXOGSG J151201.0-225603 15 12 01.80 -22 56 03.12 2.87 CHANDRA
X151201.08-225603.5 15 12 01.80 -22 56 03.48 2.88 CHANDRA
13 X151209.29-225245.2 15 12 09.29 -22 52 45.12 2.89 CHANDRA
CXOGSG J151209.2-225244 15 12 09.26 -22 52 44.04 2.89 CHANDRA
14 CXOGSG J151208.3-225458 15 12 08.35 -22 54 58.32 3.08 CHANDRA
X151208.33-225459.1 15 12 08.33 -22 54 59.04 3.09 CHANDRA
X151208.36-225458.7 15 12 08.35 -22 54 58.68 3.09 CHANDRA
15 CXOGSG J151150.5-225616 15 11 50.50 -22 56 17.16 3.30 CHANDRA
16 CXOGSG J151157.1-225640 15 11 57.12 -22 56 40.56 3.33 CHANDRA
X151157.12-225640.4 15 11 57.12 -22 56 40.56 3.33 CHANDRA
17 CXOGSG J151146.2-225601 15 11 46.25 -22 56 01.68 3.65 CHANDRA
18 X151140.93-225254.5 15 11 40.92 -22 52 54.48 3.73 CHANDRA
CXOGSG J151140.9-225254 15 11 40.92 -22 52 54.48 3.73 CHANDRA
RXC J1512.2-2254 15 12 12.62 -22 54 59.04 3.96 ROSAT
19 CXOGSG J151151.7-225708 15 11 51.77 -22 57 08.64 3.99 CHANDRA
X151151.76-225708.5 15 11 51.77 -22 57 08.64 3.99 CHANDRA
6dFGS J1512127-225508 15 12 12.74 -22 55 08.40 4.05 ROSAT
20 X151212.74-225508.4 15 12 12.74 -22 55 08.40 4.05 CHANDRA
CXOGSG J151212.7-225508 15 12 12.74 -22 55 08.40 4.05 CHANDRA
X151212.78-225508.4 15 12 12.79 -22 55 08.40 4.06 CHANDRA
1RXS J151213.1-225515 15 12 12.84 -22 55 08.40 4.07 ROSAT
2RXS J151213.0-225514 15 12 13.70 -22 55 14.88 4.16 ROSAT
2RXS J151213.0-225514 15 12 13.70 -22 55 14.88 4.16 ROSAT
1RXS J151213.1-225515 15 12 13.10 -22 55 14.88 4.17 ROSAT
1RXS J151213.1-225515 15 12 13.10 -22 55 14.88 4.17 ROSAT
21 X151140.82-225127.5 15 11 40.82 -22 51 27.36 4.18 CHANDRA
CXOGSG J151140.7-225128 15 11 40.78 -22 51 28.08 4.18 CHANDRA
22 CXOGSG J151211.2-225626 15 12 11.28 -22 56 26.52 4.52 CHANDRA
X151211.26-225627.3 15 12 11.26 -22 56 27.24 4.53 CHANDRA
23 CXOGSG J151147.4-225736 15 11 47.40 -22 57 36.72 4.81 CHANDRA
24 CXOGSG J151137.1-225544 15 11 37.15 -22 55 44.40 5.16 CHANDRA
X151137.14-225544.3 15 11 37.15 -22 55 44.40 5.17 CHANDRA
25 CXOGSG J151219.3-225249 15 12 19.34 -22 52 49.44 5.17 CHANDRA
X151219.36-225248.9 15 12 19.37 -22 52 49.08 5.18 CHANDRA
26 CXOGSG J151219.3-225422 15 12 19.34 -22 54 22.68 5.25 CHANDRA
27 CXOGSG J151218.2-225516 15 12 18.22 -22 55 16.68 5.25 CHANDRA
X151218.27-225516.6 15 12 18.26 -22 55 16.68 5.27 CHANDRA
X151219.43-225424.7 15 12 19.44 -22 54 24.84 5.27 CHANDRA
28 CXOGSG J151145.4-225821 15 11 45.48 -22 58 21.72 5.68 CHANDRA
X151220.35-225511.6 15 12 20.35 -22 55 11.64 5.69 CHANDRA
CXOGSG J151220.3-225512 15 12 20.35 -22 55 12.00 5.69 CHANDRA
29 X151212.03-225755.0 15 12 12.29 -22 57 55.08 5.74 CHANDRA
CXOGSG J151212.0-225755 15 12 12.19 -22 57 55.08 5.74 CHANDRA
CXOGSG J151213.2-225757 15 12 13.27 -22 57 57.24 5.94 CHANDRA
X151213.31-225757.4 15 12 13.32 -22 57 57.24 5.95 CHANDRA
30 CXOGSG J151143.4-225834 15 11 43.42 -22 58 34.32 6.10 CHANDRA
31 CXOGSG J151220.9-225559 15 12 20.90 -22 55 59.16 6.11 CHANDRA
X151220.94-225600.8 15 12 20.93 -22 56 00.96 6.13 CHANDRA
32 X151137.15-225748.4 15 11 37.15 -22 57 48.24 6.39 CHANDRA
X151137.12-225748.9 15 11 37.13 -22 57 48.96 6.40 CHANDRA
CXOGSG J151137.1-225748 15 11 37.13 -22 57 49.32 6.40 CHANDRA
CXOGSG J151136.6-225746 15 11 36.60 -22 57 46.08 6.45 CHANDRA
X151136.65-225746.7 15 11 36.65 -22 57 46.80 6.45 CHANDRA
33 X151145.18-225911.8 15 11 45.17 -22 59 11.76 6.46 CHANDRA
CXOGSG J151145.1-225911 15 11 45.19 -22 59 11.76 6.46 CHANDRA
34 X151131.90-225010.4 15 11 31.90 -22 50 10.32 6.59 CHANDRA
35 X151225.64-225405.8 15 12 25.63 -22 54 05.76 6.64 CHANDRA
CXOGSG J151225.7-225405 15 12 25.73 -22 54 05.76 6.66 CHANDRA
36 X151226.77-225440.0 15 12 26.76 -22 54 39.96 6.98 CHANDRA
37 CXOGSG J151136.5-225835 15 11 36.53 -22 58 35.76 7.06 CHANDRA
38 CXOGSG J151153.0-224616 15 11 53.30 -22 46 15.96 7.13 CHANDRA
39 X151139.98-225928.7 15 11 39.98 -22 59 28.68 7.28 CHANDRA
CXOGSG J151139.9-225929 15 11 39.98 -22 59 29.40 7.29 CHANDRA
X151139.98-225929.4 15 11 39.98 -22 59 29.40 7.29 CHANDRA
40 X151213.44-224656.8 15 12 13.44 -22 46 56.64 7.43 CHANDRA
CXOGSG J151213.4-224656 15 12 13.44 -22 46 56.64 7.43 CHANDRA
41 X151122.79-225305.7 15 11 22.80 -22 53 05.64 7.88 CHANDRA
CXOGSG J151122.6-225308 15 11 22.75 -22 53 07.08 7.89 CHANDRA
X151122.70-225307.6 15 11 22.70 -22 53 07.44 7.90 CHANDRA
42 X151217.78-224643.9 15 12 17.78 -22 46 44.04 8.16 CHANDRA
43 CXOGSG J151134.0-225954 15 11 34.39 -22 59 54.60 8.43 CHANDRA
44 X151135.23-230029.5 15 11 35.23 -23 00 29.52 8.73 CHANDRA
CXOGSG J151135.2-230029 15 11 35.23 -23 00 29.52 8.74 CHANDRA
45 CXOGSG J151205.9-230153 15 12 06.00 -23 01 53.40 8.80 CHANDRA
X151205.99-230153.6 15 12 06.00 -23 01 53.76 8.80 CHANDRA
46 X151200.52-230227.3 15 12 00.53 -23 02 27.24 9.15 CHANDRA
CXOGSG J151200.5-230227 15 12 00.53 -23 02 27.24 9.15 CHANDRA
47 CXOGSG J151138.0-230145 15 11 38.21 -23 01 45.84 9.49 CHANDRA
X151138.02-230146.1 15 11 38.21 -23 01 46.20 9.49 CHANDRA
48 CXOGSG J151211.7-230231 15 12 11.76 -23 02 31.20 9.79 CHANDRA
X151211.75-230231.5 15 12 11.76 -23 02 31.56 9.79 CHANDRA
49 X151216.09-230221.4 15 12 16.90 -23 02 21.48 10.03 CHANDRA
CXOGSG J151216.1-230221 15 12 16.10 -23 02 21.48 10.03 CHANDRA
50 X151158.91-230333.8 15 11 58.92 -23 03 33.84 10.23 CHANDRA
CXOGSG J151158.8-230333 15 11 58.87 -23 03 33.84 10.23 CHANDRA
51 CXOGSG J151128.9-230126 15 11 28.94 -23 01 26.40 10.36 CHANDRA
52 CXOGSG J151200.5-230413 15 12 00.55 -23 04 13.80 10.92 CHANDRA
53 CXOGSG J151133.5-230252 15 11 33.60 -23 02 52.44 10.95 CHANDRA
X151133.55-230253.7 15 11 33.55 -23 02 53.88 10.98 CHANDRA
54 X151218.77-230333.9 15 12 18.77 -23 03 33.84 11.39 CHANDRA
X151220.57-230348.0 15 12 20.57 -23 03 47.88 11.78 CHANDRA
55 X151115.96-230059.0 15 11 15.96 -23 00 59.04 12.15 CHANDRA
CXOGSG J151115.8-230059 15 11 15.86 -23 00 59.76 12.18 CHANDRA
56 X151123.42-230248.3 15 11 23.42 -23 02 48.48 12.22 CHANDRA
CXOGSG J151123.3-230248 15 11 23.40 -23 02 48.48 12.23 CHANDRA
X151123.04-230308.4 15 11 23.40 -23 03 08.28 12.54 CHANDRA
CXOGSG J151123.0-230308 15 11 23.40 -23 03 08.64 12.54 CHANDRA
57 X151239.67-230235.4 15 12 39.67 -23 02 35.52 13.49 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J151201-225602 15 12 01.01 -22 56 02.04 2.85 NVSS
TGSSADR J151200.9-225605 15 12 01.01 -22 56 06.00 2.91 GMRTAS150M
GLEAM J151211-225457 15 12 12.00 -22 54 56.88 3.81 GLEAMEGCAT
2 NVSS J151213-225210 15 12 13.80 -22 52 10.92 4.04 NVSS
3 NVSS J151212-225508 15 12 12.79 -22 55 08.04 4.07 NVSS
TGSSADR J151212.8-225511 15 12 12.79 -22 55 12.00 4.09 GMRTAS150M
4 NVSS J151213-224846 15 12 13.30 -22 48 46.08 5.91 NVSS
5 NVSS J151222-225033 15 12 22.01 -22 50 34.08 6.40 NVSS

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