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 J0438.0-7329

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0438.0-7329 Swift-XRT detections in the field for 4FGL J0438.0-7329

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 38 36.85 -73 29 19.91 5.31 (9 ± 2) x 10-3 33 5.192 5.169

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0438.0-7329 Swift-XRT image with known radio, optical and UV sources for 4FGL J0438.0-7329

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J043840.9-733011 04 38 40.90 -73 30 11.52 2.73 ROSAT
2 1RXS J043817.4-732027 04 38 17.40 -73 20 27.60 8.68 ROSAT
3 1RXS J043738.3-731731 04 37 38.30 -73 17 30.84 11.74 ROSAT
2RXS J043736.5-731722 04 37 36.55 -73 17 22.92 11.90 ROSAT
4 1RXS J043939.8-734046 04 39 39.79 -73 40 45.84 13.43 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 255628 04 38 27.79 -73 28 24.96 1.71 PGC2003
2 SUMSS J043836-732921 04 38 37.01 -73 29 21.12 2.23 SUMSS
[SPT2015] ATCA J0438-7329 04 38 36.89 -73 29 24.00 2.23 FER2FUSRID
[PME2013] J0438-7329 04 38 36.89 -73 29 24.00 2.23 AT2FGLUS
QORG J043837.0-732922 04 38 37.01 -73 29 21.84 2.24 QORGCAT
PGC 255538 04 38 37.10 -73 29 21.84 2.24 PGC2003
3 SAO 256113 04 37 12.36 -73 30 47.88 4.16 SAO
PPM 368472 04 37 12.07 -73 30 45.36 4.16 PPM
4 SUMSS J043900-732648 04 39 00.50 -73 26 48.12 4.52 SUMSS
5 PGC 255892 04 37 16.39 -73 26 06.00 4.62 PGC2003
6 PGC 256009 04 37 27.00 -73 24 56.16 4.99 PGC2003
7 [SPT2015] ATCA J0436-7329 04 36 55.20 -73 29 17.88 5.02 FER2FUSRID
[PME2013] J0436-7329 04 36 55.10 -73 29 17.16 5.03 AT2FGLUS
SUMSS J043654-732913 04 36 54.79 -73 29 13.92 5.05 SUMSS
8 PGC 256203 04 37 56.90 -73 23 02.04 6.09 PGC2003
9 PGC 254775 04 38 11.11 -73 36 59.04 7.90 PGC2003
10 PGC 255977 04 36 10.90 -73 25 09.84 9.07 PGC2003
11 PGC 256558 04 38 43.20 -73 19 45.12 9.72 PGC2003
12 PGC 177692 04 40 23.21 -73 26 39.12 10.08 PGC2003
13 LMC V10 04 40 30.10 -73 26 18.24 10.64 GCVSEGVARS
SZ Men 04 40 30.12 -73 26 17.88 10.65 GCVS
14 PGC 256718 04 37 52.99 -73 18 16.92 10.85 PGC2003
15 PGC 256702 04 37 18.10 -73 18 28.08 11.16 PGC2003
16 PGC 256760 04 37 28.70 -73 17 58.92 11.42 PGC2003
17 PGC 256389 04 35 51.50 -73 21 16.92 12.36 PGC2003

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