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 J0335.5-4501

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0335.5-4501 Swift-XRT detections in the field for 1FGL J0335.5-4501

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 35 13.78 -44 59 46.05 4.15 (1.5 ± 0.2) x 10-2 105 8.943 8.626
2 03 35 19.80 -45 00 27.95 4.24 (6.4 ± 1.2) x 10-3 57 6.252 5.326
3 03 35 09.52 -45 09 55.63 5.05 (3.7 ± 0.9) x 10-3 29 4.369 4.132
4 03 35 47.21 -44 58 56.53 4.83 (2.9 ± 0.8) x 10-3 39 3.935 3.628

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 03 35 36.80 -45 06 26.22 6.12 (1.4 ± 0.6) x 10-3 18 2.540 2.552
2 03 36 01.23 -44 53 56.41 5.17 (1.3 ± 0.6) x 10-3 20 2.535 2.396

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0335.5-4501 Swift-XRT image with known radio, optical and UV sources for 1FGL J0335.5-4501

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SWIFT J033519.8-450030 03 35 19.90 -45 00 30.24 2.44 SWIFT
2 2RXP J033514.5-445959 03 35 14.50 -44 59 59.28 3.52 ROSAT
2RXP J033514.6-445956 03 35 14.59 -44 59 56.04 3.54 ROSAT
6dFGS J0335139-445944 03 35 13.87 -44 59 43.80 3.76 ROSAT
[MML2015] 5BZB J0335-4459 03 35 13.90 -44 59 39.84 3.79 null
SWIFT J033513.7-445940 03 35 13.75 -44 59 40.92 3.80 SWIFT
3 1RXS J033514.5-445929 03 35 14.50 -44 59 29.04 3.82 ROSAT
1RXS J033514.5-445929 03 35 14.50 -44 59 29.04 3.82 ROSAT
2RXS J033514.1-445928 03 35 14.16 -44 59 27.96 3.87 ROSAT
2RXS J033514.1-445928 03 35 14.16 -44 59 27.96 3.87 ROSAT
1WGA J0335.2-4459 03 35 13.61 -44 59 27.24 3.96 ROSAT
1WGA J0335.2-4459 03 35 12.60 -44 59 29.04 4.09 ROSAT
4 SWIFT J033546.7-445832 03 35 46.78 -44 58 32.52 4.35 SWIFT
5 2RXS J033554.1-445826 03 35 54.14 -44 58 26.04 5.34 ROSAT
2RXS J033554.1-445826 03 35 54.14 -44 58 26.04 5.34 ROSAT
1RXS J033554.1-445824 03 35 54.10 -44 58 24.60 5.35 ROSAT
6 2RXS J033451.0-445703 03 34 51.41 -44 57 03.24 8.60 ROSAT
2RXS J033451.0-445703 03 34 51.41 -44 57 03.24 8.60 ROSAT
7 SWIFT J033509.4-450957 03 35 09.46 -45 09 57.96 8.93 SWIFT
8 2RXS J033523.1-451245 03 35 23.11 -45 12 45.72 10.95 ROSAT
2RXS J033523.1-451245 03 35 23.11 -45 12 45.72 10.95 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [MML2015] 5BZB J0335-4459 03 35 13.90 -44 59 39.84 3.79 ROMABZCAT
SUMSS J033513-445939 03 35 13.90 -44 59 39.84 3.79 SUMSS
2 SUMSS J033532-450713 03 35 32.40 -45 07 14.16 5.33 SUMSS
3 SUMSS J033547-450637 03 35 47.11 -45 06 38.16 5.50 SUMSS
GLEAM J033546-450642 03 35 46.61 -45 06 42.84 5.52 GLEAMEGCAT
TGSSADR J033547.0-450641 03 35 46.99 -45 06 41.04 5.54 GMRTAS150M
4 GLEAM J033528-450942 03 35 28.10 -45 09 42.12 7.81 GLEAMEGCAT
SUMSS J033528-450948 03 35 28.51 -45 09 48.96 7.92 SUMSS
5 SUMSS J033535-445312 03 35 35.71 -44 53 12.84 8.73 SUMSS
GLEAM J033536-445304 03 35 36.19 -44 53 03.84 8.89 GLEAMEGCAT
6 SUMSS J033452-451043 03 34 52.80 -45 10 42.96 11.11 SUMSS
7 SUMSS J033431-445237 03 34 31.01 -44 52 36.84 14.12 SUMSS
GLEAM J033429-445250 03 34 30.00 -44 52 50.88 14.13 GLEAMEGCAT

Penn State University Goddard Space Flight Center Swift