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 J2225.8-0804

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2225.8-0804 Swift-XRT detections in the field for 4FGL J2225.8-0804

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 25 52.98 -08 04 11.90 5.14 (9 ± 2) x 10-3 38 5.355 5.407
2 22 26 10.04 -08 02 06.80 5.40 (4.1 ± 1.2) x 10-3 31 3.966 3.393

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 25 53.68 -08 07 36.97 7.27 (2.6 ± 1.0) x 10-3 9 2.607 2.661
2 22 26 10.04 -08 02 06.84 5.35 (2.4 ± 1.0) x 10-3 31 2.707 2.415

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2225.8-0804 Swift-XRT image with known radio, optical and UV sources for 4FGL J2225.8-0804


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
QORG J222553.2-080415 22 25 53.21 -08 04 14.88 0.50 QORGCAT
1 NVSS J222553-080412 22 25 53.21 -08 04 13.08 0.54 NVSS
FIRST J222553.1-080409 22 25 53.11 -08 04 09.84 0.58 FIRST
2 FIRST J222544.5-080447 22 25 44.50 -08 04 48.00 2.09 FIRST
FIRST J222544.0-080449 22 25 44.11 -08 04 49.08 2.21 FIRST
3 FIRST J222602.2-080329 22 26 02.21 -08 03 29.88 2.60 FIRST
4 NVSS J222534-080649 22 25 34.30 -08 06 48.96 5.07 NVSS
5 NVSS J222535-080010 22 25 35.21 -08 00 10.08 6.36 NVSS
GLEAM J222535-080005 22 25 35.11 -08 00 06.12 6.42 GLEAMEGCAT
QORG J222535.3-080003 22 25 35.30 -08 00 02.88 6.42 QORGCAT
6 NVSS J222615-080128 22 26 15.29 -08 01 27.84 6.43 NVSS
FIRST J222615.3-080121 22 26 15.29 -08 01 21.00 6.50 FIRST
SDSS J22257-0811 22 25 44.40 -08 11 36.96 7.19 VERONCAT
QORG J222544.4-081137 22 25 44.40 -08 11 36.96 7.19 QORGCAT
FIRST J222544.4-081137 22 25 44.40 -08 11 36.96 7.20 FIRST
7 NVSS J222614-075950 22 26 14.50 -07 59 49.92 7.25 NVSS
8 NVSS J222544-081140 22 25 43.99 -08 11 40.92 7.28 NVSS
9 PPM 206350 22 25 39.19 -07 56 27.96 8.96 PPM
GP Aqr 22 25 39.14 -07 56 27.60 8.96 GCVS
QORG J222539.0-081332 22 25 39.00 -08 13 32.16 9.44 QORGCAT
10 NVSS J222539-081333 22 25 39.31 -08 13 33.96 9.45 NVSS
FIRST J222539.0-081332 22 25 39.00 -08 13 32.88 9.45 FIRST
11 SDSS J22253-0759 22 25 18.60 -07 59 17.88 10.10 VERONCAT
12 SDSS J22252-0801 22 25 14.81 -08 01 03.00 10.15 VERONCAT
13 PGC 1007315 22 25 16.90 -08 10 03.00 10.38 PGC2003
14 PPM 206363 22 26 23.45 -07 57 32.76 10.43 PPM
15 PGC 1010606 22 26 24.91 -07 56 31.92 11.40 PGC2003
16 PGC 1011481 22 25 55.61 -07 53 15.00 11.51 PGC2003
17 PGC 1007354 22 25 08.30 -08 09 52.92 12.19 PGC2003
18 NVSS J222516-075430 22 25 16.70 -07 54 29.88 13.62 NVSS
FIRST J222517.0-075425 22 25 16.99 -07 54 25.92 13.63 FIRST

Penn State University Goddard Space Flight Center Swift