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.

4FGL J0413.1-0304

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0413.1-0304 Swift-XRT detections in the field for 4FGL J0413.1-0304

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 13 00.31 -03 14 09.17 5.08 (10 ± 2) x 10-3 37 5.767 5.605
2 04 13 05.21 -03 15 19.11 4.81 (1.1 ± 0.2) x 10-2 39 5.759 5.369
3 04 13 18.20 -03 07 04.32 6.52 (4.1 ± 1.3) x 10-3 15 3.191 3.276

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 13 17.14 -03 05 01.33 7.71 (2.6 ± 1.0) x 10-3 10 2.613 2.688
2 04 13 06.08 -03 10 52.78 7.48 (2.2 ± 0.9) x 10-3 10 2.489 2.426

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0413.1-0304 Swift-XRT image with known radio, optical and UV sources for 4FGL J0413.1-0304

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J041301.2-031347 04 13 01.20 -03 13 47.64 9.58 ROSAT
2RXS J041301.1-031348 04 13 01.20 -03 13 48.36 9.59 ROSAT
2RXS J041301.1-031348 04 13 01.20 -03 13 48.36 9.59 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
GLEAM J041319-030156 04 13 19.80 -03 01 55.92 3.34 GLEAMEGCAT
1 NVSS J041319-030156 04 13 19.80 -03 01 55.92 3.35 NVSS
2 NVSS J041321-030845 04 13 21.70 -03 08 44.88 4.91 NVSS
3 NVSS J041305-025937 04 13 05.81 -02 59 36.96 5.14 NVSS
4 NVSS J041303-030926 04 13 03.10 -03 09 27.00 5.31 NVSS
GLEAM J041303-030927 04 13 03.31 -03 09 28.08 5.32 GLEAMEGCAT
VLSSr J041303.5-030929 04 13 03.50 -03 09 29.88 5.32 VLSSR
TGSSADR J041303.0-030926 04 13 03.00 -03 09 27.00 5.32 GMRTAS150M
QORG J041311.3-025900 04 13 11.30 -02 58 59.88 5.57 QORGCAT
TGSSADR J041311.2-025859 04 13 11.30 -02 58 59.16 5.58 GMRTAS150M
5 NVSS J041311-025858 04 13 11.30 -02 58 59.16 5.59 NVSS
6 NVSS J041243-030007 04 12 43.61 -03 00 06.84 8.27 NVSS
7 PPM 186689 04 13 43.97 -03 02 21.12 8.40 PPM
GLEAM J041309-031322 04 13 09.50 -03 13 22.08 8.82 GLEAMEGCAT
8 NVSS J041309-031323 04 13 09.41 -03 13 23.88 8.84 NVSS
TGSSADR J041309.4-031324 04 13 09.41 -03 13 24.96 8.86 GMRTAS150M
9 NVSS J041348-030716 04 13 48.31 -03 07 17.04 9.59 NVSS
10 PPM 186697 04 13 57.48 -03 06 39.60 11.67 PPM
11 NVSS J041340-025457 04 13 40.99 -02 54 56.88 12.11 NVSS
QORG J041356.8-025959 04 13 56.81 -02 59 58.92 12.20 QORGCAT
12 NVSS J041357-030004 04 13 57.19 -03 00 03.96 12.26 NVSS
13 NVSS J041230-025719 04 12 30.10 -02 57 20.16 12.62 NVSS
GLEAM J041356-031046 04 13 56.59 -03 10 45.84 12.85 GLEAMEGCAT
TGSSADR J041357.2-031036 04 13 57.19 -03 10 36.84 12.92 GMRTAS150M
14 NVSS J041247-025303 04 12 47.90 -02 53 03.84 12.92 NVSS
15 NVSS J041357-031037 04 13 57.31 -03 10 36.84 12.94 NVSS

Penn State University Goddard Space Flight Center Swift