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.

3FGL J0748.8-2208

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0748.8-2208 Swift-XRT detections in the field for 3FGL J0748.8-2208

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 49 03.79 -22 10 15.52 5.00 (10 ± 2) x 10-3 34 5.173 4.769
2 07 48 35.38 -22 00 31.18 6.04 (4.4 ± 1.3) x 10-3 18 3.506 3.427

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 48 00.04 -22 05 19.46 7.27 (2.3 ± 0.9) x 10-3 10 2.307 2.589

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0748.8-2208 Swift-XRT image with known radio, optical and UV sources for 3FGL J0748.8-2208


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
[PME2013] J0749-2204 07 49 02.50 -22 04 54.84 4.53 AT2FGLUS
[SPT2015] ATCA J0749-2204 07 49 02.40 -22 04 50.88 4.56 FER2FUSRID
TGSSADR J074902.4-220451 07 49 02.50 -22 04 50.88 4.57 GMRTAS150M
1 NVSS J074902-220450 07 49 02.50 -22 04 50.88 4.58 NVSS
TGSSADR J074909.1-221041 07 49 09.10 -22 10 41.16 5.44 GMRTAS150M
2 NVSS J074909-221039 07 49 09.19 -22 10 40.08 5.45 NVSS
[PME2013] J0748-2206 07 48 22.01 -22 06 52.92 6.25 AT2FGLUS
[SPT2015] ATCA J0748-2206 07 48 22.01 -22 06 52.92 6.25 FER2FUSRID
3 NVSS J074821-220651 07 48 21.60 -22 06 51.12 6.34 NVSS
4 NVSS J074925-221030 07 49 25.61 -22 10 30.00 8.93 NVSS
5 NVSS J074932-220847 07 49 32.30 -22 08 47.04 10.17 NVSS
6 NVSS J074832-215617 07 48 32.11 -21 56 17.16 12.39 NVSS
TGSSADR J074831.8-215612 07 48 31.80 -21 56 12.12 12.49 GMRTAS150M
7 NVSS J074801-221423 07 48 01.20 -22 14 24.00 12.64 NVSS

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