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 J0734.3-4448

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0734.3-4448 Swift-XRT detections in the field for 4FGL J0734.3-4448

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 34 18.39 -44 46 50.65 6.31 (4.6 ± 1.2) x 10-3 19 3.575 3.681
2 07 35 16.48 -44 47 30.64 6.41 (4.0 ± 1.1) x 10-3 16 3.440 3.507

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 07 35 17.69 -44 44 06.69 6.65 (4.0 ± 1.4) x 10-3 11 2.986 2.959
2 07 33 29.15 -44 41 28.63 8.62 (1.9 ± 0.8) x 10-3 7 2.161 2.483

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0734.3-4448 Swift-XRT image with known radio, optical and UV sources for 4FGL J0734.3-4448

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J073435.2-443849 07 34 35.26 -44 38 49.56 10.28 ROSAT
2 1RXS J073507.0-445832 07 35 07.01 -44 58 32.52 12.42 ROSAT
2RXS J073507.1-445836 07 35 07.13 -44 58 36.84 12.49 ROSAT
3 2RXS J073331.1-443654 07 33 31.18 -44 36 54.36 15.10 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J073425-444821 07 34 25.61 -44 48 20.88 0.69 SUMSS
GLEAM J073424-444814 07 34 24.70 -44 48 15.12 0.69 GLEAMEGCAT
2 SUMSS J073418-444642 07 34 18.19 -44 46 41.88 2.33 SUMSS
3 TGSSADR J073356.0-445028 07 33 55.99 -44 50 29.04 5.05 GMRTAS150M
4 SUMSS J073423-444349 07 34 23.90 -44 43 49.08 5.05 SUMSS
GLEAM J073355-445036 07 33 55.99 -44 50 36.96 5.10 GLEAMEGCAT
SUMSS J073355-445037 07 33 55.80 -44 50 36.96 5.13 SUMSS
5 CD-44 3546 07 34 43.73 -44 41 31.56 8.22 ACRS
HD 60906 07 34 43.75 -44 41 31.56 8.22 HIC
HIP 36863 07 34 43.75 -44 41 31.56 8.22 HIPPARCOS
PPM 311940 07 34 43.73 -44 41 31.20 8.22 PPM
SAO 218817 07 34 43.73 -44 41 30.12 8.24 SAO
6 SUMSS J073517-444742 07 35 18.00 -44 47 42.00 9.82 SUMSS
GLEAM J073518-444745 07 35 18.60 -44 47 45.96 9.93 GLEAMEGCAT
7 GLEAM J073332-445953 07 33 32.90 -44 59 53.16 14.15 GLEAMEGCAT
TGSSADR J073332.7-445952 07 33 32.81 -44 59 53.16 14.15 GMRTAS150M
SUMSS J073332-445953 07 33 32.81 -44 59 53.16 14.16 SUMSS

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