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 J1528.7-2247

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1528.7-2247 Swift-XRT detections in the field for 3FGL J1528.7-2247

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 29 03.26 -22 33 44.64 4.61 (1.3 ± 0.2) x 10-2 55 7.101 6.876
2 15 28 50.89 -22 32 13.49 4.52 (1.3 ± 0.2) x 10-2 57 7.436 6.876
3 15 28 29.26 -22 48 55.95 5.53 (5.3 ± 1.4) x 10-3 24 4.083 3.909
4 15 28 24.08 -22 33 43.49 5.89 (4.4 ± 1.1) x 10-3 18 3.737 3.840

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 28 18.59 -22 42 24.25 5.96 (2.6 ± 0.9) x 10-3 17 2.826 2.726

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1528.7-2247 Swift-XRT image with known radio, optical and UV sources for 3FGL J1528.7-2247

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J152837.4-223749 15 28 37.39 -22 37 49.08 9.47 ROSAT
2 XMMSL2 J152902.4-225556 15 29 02.28 -22 55 56.28 9.88 XMM-NEWTON
XMMSL2 J152902.4-225556 15 29 02.28 -22 55 56.28 9.88 XMM-NEWTON
1RXS J152902.4-225555 15 29 02.40 -22 55 55.56 9.89 ROSAT
2RXS J152902.3-225555 15 29 02.40 -22 55 55.56 9.89 ROSAT
2RXS J152902.3-225555 15 29 02.40 -22 55 55.56 9.89 ROSAT
3 XMMSL2 J152755.0-223756 15 27 55.22 -22 37 55.56 14.24 XMM-NEWTON
XMMSL2 J152755.0-223756 15 27 55.22 -22 37 55.56 14.24 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 732162 15 28 49.39 -22 45 05.76 2.73 PPM
2 PGC 807929 15 28 39.50 -22 51 29.16 4.30 PGC2003
3 NVSS J152829-225037 15 28 29.30 -22 50 38.04 4.48 NVSS
4 TGSSADR J152841.1-224050 15 28 41.21 -22 40 50.88 6.38 GMRTAS150M
5 NVSS J152809-224800 15 28 09.79 -22 48 01.08 7.46 NVSS
6 NVSS J152803-224643 15 28 03.70 -22 46 44.04 8.84 NVSS
7 SAO 183515 15 29 16.15 -22 42 00.36 9.45 SAO
BD-22 3965 15 29 16.15 -22 41 60.00 9.45 ACRS
HD 137875 15 29 16.20 -22 42 00.36 9.46 HIC
HIP 75816 15 29 16.18 -22 41 60.00 9.46 HIPPARCOS
PPM 264311 15 29 16.18 -22 41 59.64 9.46 PPM
8 OR-244 15 29 21.79 -22 50 17.16 9.68 DIXON
9 PPM 732166 15 29 02.38 -22 55 55.56 9.89 PPM
10 NVSS J152805-224148 15 28 05.40 -22 41 48.12 10.03 NVSS
11 NVSS J152832-223642 15 28 32.21 -22 36 42.12 10.76 NVSS
12 NVSS J152904-225643 15 29 04.80 -22 56 43.08 10.85 NVSS
QORG J152905.0-225642 15 29 04.99 -22 56 42.00 10.86 QORGCAT
GLEAM J152904-225652 15 29 04.30 -22 56 53.16 10.93 GLEAMEGCAT
13 NVSS J152854-225751 15 28 54.41 -22 57 51.84 11.01 NVSS
SAO 183508 15 28 53.47 -22 58 04.44 11.16 SAO
CD-2211020 15 28 53.52 -22 58 06.60 11.20 ACRS
PPM 264301 15 28 53.52 -22 58 06.96 11.21 PPM
14 WISH B1526.1-2247 15 29 04.51 -22 57 48.96 11.79 WISH
15 NVSS J152843-225909 15 28 43.30 -22 59 08.88 11.93 NVSS
QORG J152843.2-225910 15 28 43.20 -22 59 09.96 11.94 QORGCAT
16 NVSS J152834-223522 15 28 34.01 -22 35 21.84 11.99 NVSS
17 NVSS J152859-225858 15 28 59.21 -22 58 58.08 12.39 NVSS
18 NVSS J152808-223541 15 28 08.11 -22 35 40.92 13.94 NVSS
19 PGC 806400 15 29 20.50 -22 58 51.96 14.63 PGC2003
20 NVSS J152753-225733 15 27 53.40 -22 57 33.84 15.24 NVSS
TGSSADR J152753.3-225737 15 27 53.30 -22 57 38.16 15.30 GMRTAS150M
WISH B1524.9-2247 15 27 53.21 -22 57 38.88 15.32 WISH
GLEAM J152752-225739 15 27 52.49 -22 57 38.88 15.45 GLEAMEGCAT

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