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 J2249.4+6222

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2249.4+6222 Swift-XRT detections in the field for 4FGL J2249.4+6222

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 48 16.75 +62 18 04.55 5.53 (3.8 ± 1.0) x 10-3 22 4.279 3.714
2 22 48 28.18 +62 22 10.07 5.40 (2.7 ± 0.9) x 10-3 18 3.223 3.059

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 22 50 49.06 +62 28 17.69 7.27 (1.9 ± 0.7) x 10-3 10 2.643 2.704
2 22 50 06.04 +62 20 26.66 6.41 (1.1 ± 0.6) x 10-3 10 2.292 1.806

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2249.4+6222 Swift-XRT image with known radio, optical and UV sources for 4FGL J2249.4+6222

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J225104.1+622655 22 51 04.10 +62 26 55.68 12.25 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CGPS J224942+622415 22 49 43.01 +62 24 15.84 2.58 CGPSNGPCAT
2 NVSS J224901+622246 22 49 01.70 +62 22 46.92 2.61 NVSS
CGPS J224901+622249 22 49 01.39 +62 22 49.08 2.66 CGPSNGPCAT
AMIGPS J224859+622240 22 48 59.59 +62 22 40.08 2.86 AMIGPS16GH
3 BD+61 2350 22 49 36.34 +62 19 57.72 3.21 ACRS
HIP 112718 22 49 36.46 +62 19 58.08 3.22 HIPPARCOS
SAO 20264 22 49 36.43 +62 19 57.36 3.22 HIC
PPM 23979 22 49 36.46 +62 19 57.36 3.23 PPM
SAO 20264 22 49 36.50 +62 19 54.84 3.27 SAO
WN 2246.9+6208 22 48 48.91 +62 24 01.08 4.25 WENSS
CGPS J224848+622406 22 48 48.10 +62 24 06.12 4.37 CGPSNGPCAT
4 NVSS J224847+622405 22 48 47.71 +62 24 06.12 4.41 NVSS
CGPS J224947+621736 22 49 47.21 +62 17 35.88 5.89 CGPSNGPCAT
5 NVSS J224946+621734 22 49 46.99 +62 17 35.16 5.90 NVSS
6 AMIGPS J224944+621633 22 49 44.40 +62 16 33.96 6.71 AMIGPS16GH
7 CGPS J224903+621345 22 49 03.91 +62 13 45.84 9.40 CGPSNGPCAT
8 WDS J22506+6228 22 50 36.00 +62 28 00.12 9.77 WDS
9 LKH@ 350 22 49 07.15 +62 11 09.24 11.87 HBC
V385 Cep 22 49 07.25 +62 11 08.52 11.88 GCVS
10 QORG J225059.0+623002 22 50 58.99 +62 30 02.16 13.10 QORGCAT
11 LDN 1212 22 47 54.22 +62 12 51.84 14.47 LDN
CGPS J224802+621125 22 48 02.21 +62 11 25.08 14.89 CGPSNGPCAT
12 NVSS J224801+621124 22 48 01.99 +62 11 24.00 14.92 NVSS
13 CGPS J225103+623448 22 51 03.10 +62 34 48.00 16.52 CGPSNGPCAT

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