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 J0023.6-4209

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0023.6-4209 Swift-XRT detections in the field for 4FGL J0023.6-4209

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 23 03.72 -42 05 09.02 5.24 (1.7 ± 0.3) x 10-2 33 5.340 5.380

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 00 24 01.69 -42 18 53.53 7.48 (3.0 ± 1.3) x 10-3 9 2.346 2.330
2 00 23 19.24 -42 19 34.65 6.52 (3.2 ± 1.4) x 10-3 10 2.898 2.302

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0023.6-4209 Swift-XRT image with known radio, optical and UV sources for 4FGL J0023.6-4209

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J0023.9-4210 00 23 59.30 -42 10 06.60 4.04 ROSAT
2 1WGA J0023.7-4215 00 23 45.91 -42 15 15.12 5.97 ROSAT
3 2RXP J002307.2-420532 00 23 07.15 -42 05 32.28 6.90 ROSAT
1WGA J0023.1-4205 00 23 07.10 -42 05 09.96 7.13 ROSAT
4 1RXS J002400.8-422111 00 24 00.79 -42 21 11.52 12.47 ROSAT
2RXS J002400.8-422116 00 24 00.79 -42 21 16.20 12.54 ROSAT
2RXS J002400.8-422116 00 24 00.79 -42 21 16.20 12.54 ROSAT
5 1WGA J0024.3-4221 00 24 23.59 -42 21 14.40 14.51 ROSAT
2RXP J002423.3-422117 00 24 23.26 -42 21 17.28 14.51 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 DENISP_G_J0023423-421149 00 23 42.29 -42 11 48.84 2.49 DENISIGAL
PGC 108012 00 23 42.31 -42 11 48.84 2.49 PGC2003
2 PGC 1519 00 23 54.50 -42 07 21.00 3.76 PGC2003
DENISP_G_J0023546-420722 00 23 54.60 -42 07 22.08 3.77 DENISIGAL
ESO 002126-4224.0 00 23 54.72 -42 07 22.80 3.78 ESOUPPSALA
3 PGC 108010 00 23 17.90 -42 10 32.16 3.83 PGC2003
4 PGC 108011 00 23 32.90 -42 13 15.96 3.90 PGC2003
5 QORG J002359.2-421005 00 23 59.21 -42 10 05.16 4.02 QORGCAT
6 PGC 108016 00 23 58.90 -42 06 24.12 4.98 PGC2003
7 PGC 108015 00 23 51.00 -42 13 50.88 5.02 PGC2003
8 ABELL37S 00 23 42.00 -42 14 59.64 5.58 ABELL
9 PGC 568419 00 23 59.21 -42 05 33.00 5.59 PGC2003
10 DENISP_G_J0023369-421516 00 23 36.91 -42 15 15.84 5.79 DENISIGAL
PGC 130040 00 23 36.91 -42 15 16.92 5.81 PGC2003
11 DENISP_G_J0024048-420541 00 24 04.80 -42 05 40.92 6.29 DENISIGAL
PGC 108018 00 24 04.90 -42 05 39.84 6.31 PGC2003
12 PGC 108013 00 23 42.41 -42 15 43.92 6.32 PGC2003
13 GLEAM J002405-421321 00 24 05.30 -42 13 22.08 6.41 GLEAMEGCAT
14 PGC 567957 00 23 02.40 -42 07 32.88 6.83 PGC2003
15 QORG J002307.1-420525 00 23 07.10 -42 05 25.08 6.98 QORGCAT
16 DENISP_G_J0024013-421541 00 24 01.30 -42 15 41.04 7.59 DENISIGAL
PGC 108017 00 24 01.39 -42 15 41.04 7.60 PGC2003
17 PGC 101640 00 23 03.79 -42 05 08.88 7.64 PGC2003
18 GLEAM J002259-420632 00 22 59.21 -42 06 32.04 7.73 GLEAMEGCAT
PGC 568549 00 23 03.79 -42 04 57.00 7.75 PGC2003
TGSSADR J002259.1-420625 00 22 59.21 -42 06 25.92 7.78 GMRTAS150M
SUMSS J002259-420624 00 22 58.99 -42 06 24.84 7.80 SUMSS
19 PGC 108008 00 22 53.21 -42 11 15.00 8.44 PGC2003
20 PGC 130042 00 23 00.00 -42 14 15.00 8.47 PGC2003
21 PGC 101642 00 23 22.10 -42 17 26.16 8.47 PGC2003
DENISP_G_J0023221-421726 00 23 22.10 -42 17 26.16 8.47 DENISIGAL
22 PGC 568546 00 24 16.99 -42 04 59.16 8.55 PGC2003
23 PMN J0022-4206 00 22 54.19 -42 06 37.08 8.57 PMN
CRATES J002254-420637 00 22 54.00 -42 06 37.08 8.60 CRATES
24 PGC 101638 00 22 51.60 -42 06 01.08 9.23 PGC2003
25 GLEAM J002359-420100 00 23 59.81 -42 01 00.84 9.41 GLEAMEGCAT
TGSSADR J002358.6-420044 00 23 58.70 -42 00 45.00 9.55 GMRTAS150M
TGSSADR J002402.2-420057 00 24 02.30 -42 00 57.96 9.65 GMRTAS150M
26 989- 21 00 24 23.54 -42 14 05.28 9.65 NLTT
SUMSS J002400-420039 00 24 00.70 -42 00 39.96 9.78 SUMSS
27 PGC 108023 00 24 26.71 -42 04 31.08 10.34 PGC2003
28 DENISP_G_J0024327-420619 00 24 32.71 -42 06 19.08 10.67 DENISIGAL
PGC 108024 00 24 32.81 -42 06 20.16 10.68 PGC2003
29 PGC 108006 00 22 39.91 -42 09 20.88 10.72 PGC2003
30 PGC 568862 00 22 49.49 -42 03 25.92 10.80 PGC2003
31 HD 1837 00 22 40.39 -42 12 50.04 11.14 HIC
PPM 304819 00 22 40.34 -42 12 50.04 11.15 PPM
HIP 1782 00 22 40.32 -42 12 50.04 11.16 HIPPARCOS
32 PGC 101646 00 24 18.70 -42 00 56.16 11.43 PGC2003
33 PGC 108005 00 22 39.70 -42 04 33.96 11.83 PGC2003
34 QORG J002434.8-421458 00 24 34.80 -42 14 57.84 11.91 QORGCAT
35 PGC 101645 00 24 11.90 -42 19 35.04 11.92 PGC2003
36 SUMSS J002429-420225 00 24 29.90 -42 02 26.16 11.96 SUMSS
37 SUMSS J002438-420236 00 24 38.90 -42 02 36.96 13.26 SUMSS
SPASS J002438-420218 00 24 38.81 -42 02 18.96 13.40 SPASS2P3GH
38 MWACS J0024.4-4219 00 24 26.71 -42 19 27.84 13.48 MWACS
SUMSS J002426-421937 00 24 26.40 -42 19 36.84 13.57 SUMSS
TGSSADR J002426.4-421937 00 24 26.40 -42 19 36.84 13.57 GMRTAS150M
GLEAM J002426-421943 00 24 26.21 -42 19 42.96 13.62 GLEAMEGCAT
39 QORG J002423.3-422116 00 24 23.30 -42 21 15.84 14.50 QORGCAT
40 GLEAM J002434-415833 00 24 34.39 -41 58 32.88 15.16 GLEAMEGCAT
SUMSS J002434-415830 00 24 34.51 -41 58 31.08 15.21 SUMSS
TGSSADR J002434.4-415828 00 24 34.51 -41 58 27.84 15.23 GMRTAS150M
41 PGC 569678 00 24 40.01 -41 59 09.96 15.48 PGC2003

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