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 J0722.4-2650

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0722.4-2650 Swift-XRT detections in the field for 4FGL J0722.4-2650

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 22 39.49 -27 02 42.78 4.80 (5.8 ± 1.1) x 10-3 39 5.717 5.260
2 07 22 19.54 -26 47 34.92 5.24 (4.1 ± 0.9) x 10-3 30 4.676 4.600
3 07 21 58.77 -26 43 32.42 5.64 (3.1 ± 0.7) x 10-3 21 4.184 4.209
4 07 22 18.69 -26 55 38.20 6.04 (2.6 ± 0.8) x 10-3 15 3.326 3.313
5 07 22 42.09 -26 44 06.56 5.28 (2.3 ± 0.7) x 10-3 21 3.643 3.288

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 23 14.10 -26 46 35.02 5.64 (1.8 ± 0.6) x 10-3 14 3.133 2.868
2 07 22 30.14 -26 54 14.40 5.82 (1.7 ± 0.6) x 10-3 20 2.688 2.744
3 07 21 57.46 -26 56 58.80 6.65 (1.3 ± 0.5) x 10-3 11 2.584 2.634
4 07 22 41.57 -26 43 01.29 5.82 (1.3 ± 0.5) x 10-3 17 2.762 2.477
5 07 23 17.58 -26 46 21.80 5.40 (1.5 ± 0.6) x 10-3 11 2.911 2.278

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0722.4-2650 Swift-XRT image with known radio, optical and UV sources for 4FGL J0722.4-2650


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
1 TGSSADR J072219.5-264931 07 22 19.51 -26 49 31.08 2.07 GMRTAS150M
2 PGC 77115 07 22 16.10 -26 50 53.88 2.51 PGC2003
CGMW 2-817 07 22 16.08 -26 50 53.88 2.52 CGMW
3 NVSS J072244-265414 07 22 44.50 -26 54 14.04 5.26 NVSS
4 NVSS J072248-265336 07 22 49.01 -26 53 35.88 5.67 NVSS
5 SAO 173560 07 22 03.84 -26 53 47.40 6.11 SAO
PPM 252225 07 22 03.84 -26 53 48.48 6.12 PPM
CD-26 4256 07 22 03.79 -26 53 48.84 6.12 ACRS
6 CGMW 2-810 07 21 59.06 -26 50 58.92 6.31 CGMW
PGC 77104 07 21 58.99 -26 50 58.92 6.32 PGC2003
7 WDS J07228-2646 07 22 48.00 -26 46 00.12 6.55 WDS
8 WDS J07230-2649 07 23 00.00 -26 49 00.12 7.48 WDS
9 AM CMa 07 22 47.78 -26 42 52.56 9.02 GCVS
TGSSADR J072235.5-270038 07 22 35.50 -27 00 38.16 10.16 GMRTAS150M
10 NVSS J072235-270039 07 22 35.81 -27 00 38.88 10.18 NVSS
11 NVSS J072312-265235 07 23 12.70 -26 52 36.12 10.31 NVSS
12 NVSS J072140-265250 07 21 40.01 -26 52 50.16 10.77 NVSS
13 NVSS J072209-270140 07 22 09.60 -27 01 41.16 11.72 NVSS
TGSSADR J072209.6-270145 07 22 09.60 -27 01 45.84 11.79 GMRTAS150M
14 HD 57782 07 21 42.65 -26 58 04.08 12.42 HIC
PPM 252216 07 21 42.65 -26 58 04.08 12.42 PPM
HIP 35678 07 21 42.62 -26 58 03.72 12.42 HIPPARCOS
CD-26 4246 07 21 42.62 -26 58 04.08 12.42 ACRS
SAO 173552 07 21 42.62 -26 58 04.44 12.43 SAO

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