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 J0828.9+0901

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0828.9+0901 Swift-XRT detections in the field for 1FGL J0828.9+0901

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 29 30.23 +08 58 20.22 5.28 (6.4 ± 1.3) x 10-3 31 4.778 4.765
2 08 29 32.92 +09 03 05.35 5.76 (3.3 ± 1.1) x 10-3 15 3.354 3.134

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 08 28 32.85 +08 55 50.82 6.21 (2.8 ± 1.0) x 10-3 14 2.933 2.847
2 08 28 28.25 +08 51 42.86 6.93 (2.7 ± 1.0) x 10-3 11 2.379 2.720
3 08 29 11.69 +08 47 00.18 6.12 (2.2 ± 0.9) x 10-3 14 2.558 2.537
4 08 28 54.15 +08 58 13.58 5.64 (2.7 ± 1.1) x 10-3 23 2.786 2.497
5 08 28 52.37 +08 57 10.04 5.64 (2.1 ± 0.9) x 10-3 20 2.540 2.342

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0828.9+0901 Swift-XRT image with known radio, optical and UV sources for 1FGL J0828.9+0901

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J0828.8+0858 08 28 48.91 +08 58 47.28 2.72 ROSAT
2 2RXP J082851.0+085807 08 28 51.00 +08 58 06.96 3.09 ROSAT
3 1WGA J0828.9+0907 08 28 57.00 +09 07 18.12 6.29 ROSAT
2RXP J082857.6+090721 08 28 57.60 +09 07 21.00 6.35 ROSAT
4 2RXP J082829.3+085542 08 28 29.28 +08 55 41.88 8.31 ROSAT
1WGA J0828.4+0855 08 28 27.50 +08 55 36.48 8.71 ROSAT
5 1WGA J0829.5+0858 08 29 30.41 +08 58 25.32 9.10 ROSAT
6 1WGA J0829.5+0903 08 29 31.39 +09 03 03.24 9.19 ROSAT
7 2RXP J082932.3+085839 08 29 32.28 +08 58 39.00 9.49 ROSAT
8 1WGA J0828.7+0910 08 28 44.90 +09 10 13.08 9.53 ROSAT
1RXS J082932.9+090306 08 29 32.90 +09 03 06.48 9.56 ROSAT
2RXP J082933.0+090316 08 29 33.00 +09 03 15.84 9.62 ROSAT
9 1WGA J0828.5+0909 08 28 30.60 +09 09 06.48 10.09 ROSAT
10 2RXP J082831.0+091132 08 28 30.98 +09 11 31.92 12.07 ROSAT
1WGA J0828.5+0911 08 28 30.91 +09 11 33.00 12.10 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 FIRST J082853.4+085840 08 28 53.40 +08 58 41.16 2.39 FIRST
2 SDSS J08288+0858 08 28 49.20 +08 58 54.84 2.57 VERONCAT
SDSS J082849.15+085854 08 28 49.15 +08 58 54.84 2.58 SDSSQUASAR
QORG J082849.1+085855 08 28 49.10 +08 58 54.84 2.58 QORGCAT
FIRST J082847.3+090335 08 28 47.30 +09 03 36.00 3.20 FIRST
3 NVSS J082847+090337 08 28 47.30 +09 03 37.08 3.23 NVSS
QORG J082846.4+090327 08 28 46.39 +09 03 27.00 3.24 QORGCAT
FIRST J082848.0+090347 08 28 48.10 +09 03 47.16 3.26 FIRST
FIRST J082846.2+090327 08 28 46.30 +09 03 27.00 3.26 FIRST
4 FIRST J082859.2+085545 08 28 59.30 +08 55 45.12 5.38 FIRST
5 FIRST J082903.6+090630 08 29 03.60 +09 06 29.88 5.86 FIRST
QORG J082903.6+090631 08 29 03.60 +09 06 30.96 5.87 QORGCAT
6 NVSS J082830+090015 08 28 30.79 +09 00 15.84 6.05 NVSS
7 FIRST J082916.7+085801 08 29 16.80 +08 58 01.92 6.13 FIRST
8 QORG J082857.8+090720 08 28 57.79 +09 07 19.92 6.34 QORGCAT
FIRST J082829.4+090051 08 28 29.40 +09 00 51.84 6.35 FIRST
9 NVSS J082829+090058 08 28 29.30 +09 00 59.04 6.36 NVSS
10 NVSS J082827+085808 08 28 27.79 +08 58 08.04 7.33 NVSS
FIRST J082827.8+085807 08 28 27.79 +08 58 08.04 7.34 FIRST
11 SDSS J082832.99+085551 08 28 33.00 +08 55 50.88 7.53 SDSSQUASAR
SDSS J08285+0855 08 28 33.00 +08 55 50.88 7.53 VERONCAT
12 FIRST J082925.5+085834 08 29 25.51 +08 58 33.96 7.91 FIRST
PMN J0829+0858 08 29 29.11 +08 58 32.88 8.75 PMN
13 FIRST J082927.8+085722 08 29 27.91 +08 57 21.96 8.88 FIRST
14 PGC 1360716 08 28 46.80 +09 09 45.00 8.96 PGC2003
0826+0908 08 29 29.90 +08 58 28.92 8.96 NORTH6CM
0826+0908 08 29 29.90 +08 58 28.92 8.96 NORTH20CM
GB6 J0829+0858 08 29 29.90 +08 58 18.84 9.01 GB6
15 FIRST J082836.6+085315 08 28 36.70 +08 53 15.00 9.01 FIRST
TXS 0826+091 08 29 30.10 +08 58 23.88 9.04 TEXAS
VLSS J0829.5+0858 08 29 30.19 +08 58 26.04 9.06 VLSS
FIRST J082930.3+085827 08 29 30.31 +08 58 27.12 9.07 FIRST
16 NVSS J082930+085821 08 29 30.31 +08 58 22.08 9.09 NVSS
FIRST J082930.3+085821 08 29 30.31 +08 58 22.08 9.10 FIRST
TEX 0826+091 08 29 30.31 +08 58 19.92 9.10 VERONCAT
17 FIRST J082932.1+085908 08 29 32.21 +08 59 08.16 9.34 FIRST
18 QORG J082850.5+091019 08 28 50.50 +09 10 18.84 9.35 QORGCAT
FIRST J082932.6+085921 08 29 32.59 +08 59 21.84 9.41 FIRST
MITG J0829+0858 08 29 31.90 +08 58 14.88 9.50 MITGB6CM
19 QORG J082933.2+090314 08 29 33.19 +09 03 14.04 9.66 QORGCAT
20 NVSS J082919+085311 08 29 19.51 +08 53 12.12 9.89 NVSS
FIRST J082933.1+090418 08 29 33.10 +09 04 18.12 9.95 FIRST
21 NVSS J082933+090421 08 29 33.10 +09 04 21.00 9.96 NVSS
FIRST J082832.8+085242 08 28 32.81 +08 52 41.88 9.98 FIRST
22 NVSS J082832+085241 08 28 32.90 +08 52 41.16 9.99 NVSS
QORG J082832.9+085241 08 28 32.90 +08 52 41.16 9.99 QORGCAT
QORG J082934.8+085809 08 29 34.80 +08 58 09.12 10.22 QORGCAT
23 FIRST J082934.8+085809 08 29 34.80 +08 58 09.84 10.22 FIRST
24 FIRST J082812.9+090454 08 28 12.91 +09 04 54.84 11.12 FIRST
25 NVSS J082923+091008 08 29 23.30 +09 10 09.12 11.47 NVSS
26 485- 15 08 29 32.35 +09 07 56.28 11.50 NLTT
27 BD+09 1986 08 29 34.66 +08 54 31.32 11.74 ACRS
PPM 154548 08 29 34.68 +08 54 31.68 11.74 PPM
28 QORG J082831.3+091131 08 28 31.30 +09 11 30.84 12.02 QORGCAT
29 SN 2004cl 08 29 33.48 +08 52 05.52 13.03 ASIAGOSN
FIRST J082826.8+091217 08 28 26.81 +09 12 18.00 13.25 FIRST
30 NVSS J082826+091217 08 28 26.30 +09 12 18.00 13.32 NVSS
FIRST J082824.8+091210 08 28 24.79 +09 12 11.16 13.42 FIRST

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