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 J0409.9-0357

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0409.9-0357 Swift-XRT detections in the field for 1FGL J0409.9-0357

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 09 46.60 -04 00 00.53 5.08 (8 ± 2) x 10-3 35 5.057 5.132

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 04 10 17.05 -04 00 53.86 5.89 (2.0 ± 0.8) x 10-3 16 2.359 2.440
2 04 09 51.34 -03 56 44.74 6.52 (2.3 ± 1.0) x 10-3 11 2.419 2.327
3 04 10 07.61 -03 52 07.80 4.74 (1.5 ± 0.9) x 10-3 28 2.720 1.632
4 04 10 04.46 -03 52 23.85 4.78 (1.5 ± 0.9) x 10-3 31 2.635 1.570

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0409.9-0357 Swift-XRT image with known radio, optical and UV sources for 1FGL J0409.9-0357

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J040956.2-035158 04 09 56.21 -03 51 57.96 5.44 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J040955-035857 04 09 55.70 -03 58 57.00 1.58 NVSS
2 NVSS J040949-035520 04 09 49.01 -03 55 19.92 2.50 NVSS
QORG J040946.6-040003 04 09 46.61 -04 00 02.88 3.35 QORGCAT
3 NVSS J040946-040003 04 09 46.61 -04 00 03.96 3.37 NVSS
QORG J041004.1-035340 04 10 04.10 -03 53 39.84 4.39 QORGCAT
4 NVSS J041004-035337 04 10 04.10 -03 53 38.04 4.42 NVSS
5 0407-0401L 04 10 02.30 -03 53 22.92 4.43 NORTH20CM
VLSS J0410.0-0352 04 10 03.79 -03 52 39.00 5.25 VLSS
6 NVSS J041003-035231 04 10 03.70 -03 52 32.16 5.34 NVSS
7 PPM 186604 04 09 39.14 -03 53 43.08 5.36 PPM
QORG J041003.8-035229 04 10 03.79 -03 52 28.92 5.40 QORGCAT
8 NVSS J040933-035838 04 09 33.60 -03 58 37.92 5.44 NVSS
9 NVSS J041002-040422 04 10 02.90 -04 04 23.16 7.28 NVSS
QORG J041002.6-040426 04 10 02.59 -04 04 26.04 7.31 QORGCAT
10 NVSS J041020-040132 04 10 20.30 -04 01 32.16 7.60 NVSS
11 NVSS J040927-035404 04 09 27.00 -03 54 05.04 7.68 NVSS
PGC 2816398 04 09 27.00 -03 54 05.04 7.68 PGC2003
QORG J040927.0-035405 04 09 27.00 -03 54 05.04 7.68 QORGCAT
12 SAO 131002 04 10 26.83 -03 56 09.96 8.09 SAO
BD-04 751 04 10 26.98 -03 56 09.96 8.12 ACRS
PPM 186623 04 10 27.00 -03 56 09.96 8.13 PPM
13 NVSS J041009-034905 04 10 09.50 -03 49 05.88 9.07 NVSS
14 NVSS J040920-040123 04 09 20.71 -04 01 23.88 9.41 NVSS
15 NVSS J041027-040205 04 10 27.79 -04 02 06.00 9.47 NVSS
16 NVSS J040918-035106 04 09 18.31 -03 51 06.12 11.07 NVSS
QORG J040918.2-035106 04 09 18.19 -03 51 06.12 11.08 QORGCAT
17 NVSS J041017-040748 04 10 17.71 -04 07 49.08 11.89 NVSS
18 NVSS J040922-034612 04 09 22.10 -03 46 12.00 13.84 NVSS

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