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 J1021.8-6308

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1021.8-6308 Swift-XRT detections in the field for 4FGL J1021.8-6308

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 20 44.66 -63 11 22.50 5.08 (1.2 ± 0.2) x 10-2 37 5.684 5.465
2 10 21 11.30 -63 13 00.07 6.41 (7 ± 2) x 10-3 17 3.690 3.730

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 10 21 35.40 -63 11 04.51 7.09 (3.4 ± 1.3) x 10-3 13 2.571 2.661
2 10 20 58.82 -63 18 29.53 6.65 (2.8 ± 1.1) x 10-3 9 2.736 2.445

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1021.8-6308 Swift-XRT image with known radio, optical and UV sources for 4FGL J1021.8-6308

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J102045.8-631121 10 20 45.79 -63 11 21.12 8.00 ROSAT
1RXS J102045.8-631121 10 20 45.79 -63 11 21.12 8.00 ROSAT
2RXS J102045.7-631120 10 20 45.72 -63 11 20.40 8.00 ROSAT
1RXS J102045.8-631121 10 20 45.00 -63 11 17.88 8.07 ROSAT
2 1RXS J102027.1-631328 10 20 27.10 -63 13 28.56 10.75 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 HD 307669 10 21 45.36 -63 08 40.20 0.87 HDEC
2 MGPS J102205-630518 10 22 05.71 -63 05 17.88 3.79 MGPS2
3 MGPS J102209-631219 10 22 09.31 -63 12 20.16 3.97 MGPS2
4 PMN J1022-6304 10 22 00.41 -63 04 51.96 4.04 PMN
5 HD 307666 10 22 00.05 -63 02 47.40 6.08 HIC
HIP 50765 10 21 59.76 -63 02 45.24 6.11 HIPPARCOS
HD 307666 B 10 21 58.30 -63 02 33.00 6.29 HDEC
HD 307666 A 10 21 57.72 -63 02 27.24 6.38 HDEC
6 142- 53 10 21 57.07 -63 02 10.32 6.66 NLTT
7 PPM 357950 10 22 42.89 -63 14 26.88 7.96 PPM
HD 307670 10 22 42.89 -63 14 27.24 7.97 HDEC
8 CD-62 449 10 21 04.44 -63 01 53.76 8.83 ACRS
SAO 250929 10 21 04.42 -63 01 54.12 8.83 SAO
PPM 357937 10 21 04.44 -63 01 53.76 8.83 PPM
9 PPM 357952 10 22 52.42 -63 01 34.68 9.88 PPM
10 MGPS J102229-631922 10 22 29.21 -63 19 23.16 11.32 MGPS2
11 PGC 2792511 10 21 53.40 -62 57 19.08 11.50 PGC2003
12 SAO 250926 10 20 49.75 -63 19 14.88 12.63 SAO
PPM 357934 10 20 49.75 -63 19 17.40 12.67 PPM
CPD-62 1534 10 20 49.70 -63 19 17.40 12.67 ACRS
13 HD 307664 10 23 07.73 -62 58 54.84 13.03 HDEC
14 MGPS J102028-631854 10 20 28.39 -63 18 55.08 13.88 MGPS2
15 HD 307665 10 20 43.39 -62 56 53.16 14.30 HDEC
16 WDS J10204-6320 AB 10 20 24.00 -63 19 59.88 15.02 WDS
WDS J10204-6320 AC 10 20 24.00 -63 19 59.88 15.02 WDS
HIP 50619 10 20 23.66 -63 20 12.12 15.19 HIPPARCOS
PPM 357931 10 20 23.62 -63 20 12.12 15.20 PPM
CD-62 447 10 20 23.64 -63 20 12.48 15.20 ACRS
HD 89876 10 20 23.64 -63 20 12.84 15.20 HIC
SAO 250924 10 20 23.62 -63 20 12.84 15.20 SAO

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