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 J1221.5-0632

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1221.5-0632 Swift-XRT detections in the field for 3FGL J1221.5-0632

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 21 27.38 -06 28 45.99 4.41 (8.7 ± 1.3) x 10-3 68 7.088 6.961
2 12 21 53.67 -06 41 03.06 5.08 (4.5 ± 0.9) x 10-3 33 5.235 5.073
3 12 21 26.10 -06 25 03.42 4.51 (4.4 ± 1.0) x 10-3 51 5.362 4.337
4 12 21 06.24 -06 39 12.02 5.08 (3.2 ± 0.8) x 10-3 25 3.928 3.953
5 12 21 53.68 -06 31 19.44 5.59 (2.5 ± 0.7) x 10-3 23 3.373 3.698
6 12 21 53.42 -06 29 04.46 5.53 (2.0 ± 0.7) x 10-3 19 3.099 3.039

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 12 21 19.70 -06 39 24.94 6.93 (1.6 ± 0.6) x 10-3 12 2.431 2.866
2 12 20 59.77 -06 29 20.12 5.64 (1.2 ± 0.5) x 10-3 15 2.467 2.274
3 12 20 42.49 -06 34 11.37 5.02 (1.3 ± 0.6) x 10-3 18 2.864 2.117
4 12 21 26.10 -06 25 03.42 4.51 (1.2 ± 0.6) x 10-3 50 2.743 2.000
5 12 20 41.43 -06 32 56.45 5.11 (9 ± 5) x 10-4 17 2.802 1.785

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1221.5-0632 Swift-XRT image with known radio, optical and UV sources for 3FGL J1221.5-0632

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SWIFT J122127.2-062842 12 21 27.24 -06 28 42.24 4.38 SWIFT
2 SWIFT J122153.9-063121 12 21 53.93 -06 31 21.00 6.00 SWIFT
3 SWXCS J122126-0625.2 12 21 26.35 -06 25 09.84 7.91 SWIFT
SWIFT J122126.6-062505 12 21 26.62 -06 25 05.52 7.97 SWIFT
4 SWIFT J122105.9-063914 12 21 05.95 -06 39 14.40 8.76 SWIFT
5 SWIFT J122153.5-064103 12 21 53.59 -06 41 03.84 9.87 SWIFT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
FIRST J122139.2-063028 12 21 39.31 -06 30 28.08 3.31 FIRST
[PME2013] J1221-063A 12 21 39.41 -06 30 29.16 3.31 AT2FGLUS
[SPT2015] ATCA J1221-063A 12 21 39.50 -06 30 29.88 3.32 FER2FUSRID
TGSSADR J122139.7-063032 12 21 39.70 -06 30 33.12 3.33 GMRTAS150M
GLEAM J122140-063037 12 21 40.39 -06 30 37.08 3.39 GLEAMEGCAT
1 NVSS J122140-063035 12 21 40.51 -06 30 36.00 3.43 NVSS
2 TGSSADR J122142.8-063057 12 21 42.79 -06 30 56.88 3.65 GMRTAS150M
FIRST J122142.9-063055 12 21 42.89 -06 30 55.08 3.68 FIRST
FIRST J122143.3-063057 12 21 43.30 -06 30 57.96 3.74 FIRST
FIRST J122117.4-063039 12 21 17.50 -06 30 38.88 4.04 FIRST
[SPT2015] ATCA J1221-0630 12 21 17.50 -06 30 38.16 4.04 FER2FUSRID
[PME2013] J1221-0630 12 21 17.50 -06 30 38.16 4.04 AT2FGLUS
3 NVSS J122117-063038 12 21 17.40 -06 30 38.16 4.07 NVSS
FIRST J122133.2-062410 12 21 33.31 -06 24 11.16 8.85 FIRST
4 NVSS J122132-062409 12 21 32.59 -06 24 10.08 8.85 NVSS
FIRST J122159.2-062725 12 21 59.30 -06 27 24.84 9.03 FIRST
5 NVSS J122159-062715 12 21 59.40 -06 27 15.84 9.15 NVSS
6 NVSS J122202-063803 12 22 02.40 -06 38 03.84 9.37 NVSS
7 NVSS J122139-062303 12 21 39.79 -06 23 03.12 10.20 NVSS
8 NVSS J122152-064235 12 21 52.20 -06 42 36.00 10.98 NVSS
FIRST J122152.0-064240 12 21 52.10 -06 42 39.96 11.03 FIRST
9 NVSS J122157-062354 12 21 57.19 -06 23 53.88 11.23 NVSS
FIRST J122157.3-062354 12 21 57.41 -06 23 54.96 11.24 FIRST
TGSSADR J122114.8-062135 12 21 14.90 -06 21 34.92 12.07 GMRTAS150M
FIRST J122114.8-062134 12 21 14.90 -06 21 33.84 12.08 FIRST
10 NVSS J122114-062134 12 21 14.71 -06 21 34.92 12.10 NVSS
11 NVSS J122047-062234 12 20 47.50 -06 22 35.04 14.95 NVSS
FIRST J122047.0-062241 12 20 47.11 -06 22 41.88 14.95 FIRST

Penn State University Goddard Space Flight Center Swift