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 J0848.8-4328

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0848.8-4328 Swift-XRT detections in the field for 4FGL J0848.8-4328

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 48 47.73 -43 21 46.22 3.90 (1.03 ± 0.13) x 10-2 136 8.383 7.977

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 08 48 48.73 -43 32 52.70 4.12 (2.3 ± 0.9) x 10-3 66 3.077 2.674
2 08 48 52.79 -43 35 34.19 4.28 (1.8 ± 0.7) x 10-3 39 2.758 2.458
3 08 48 20.20 -43 30 43.10 3.92 (2.1 ± 0.9) x 10-3 87 3.062 2.354
4 08 48 13.81 -43 26 35.55 3.91 (1.9 ± 0.9) x 10-3 84 3.428 2.199
5 08 48 10.66 -43 27 50.79 3.89 (1.9 ± 0.9) x 10-3 92 2.890 2.144
6 08 49 22.30 -43 24 15.71 4.20 (1.3 ± 0.6) x 10-3 64 3.079 2.114
7 08 48 08.98 -43 22 11.47 4.03 (1.6 ± 0.8) x 10-3 61 2.951 1.944
8 08 48 09.36 -43 27 37.59 3.90 (1.5 ± 0.8) x 10-3 91 3.727 1.815
9 08 48 04.51 -43 29 29.26 3.94 (1.2 ± 0.8) x 10-3 69 2.853 1.584

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0848.8-4328 Swift-XRT image with known radio, optical and UV sources for 4FGL J0848.8-4328

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 Unknown 08 49 20.16 -43 21 45.36 8.53 EXOSAT
2 X084828.33-431837.4 08 48 28.32 -43 18 37.44 10.57 CHANDRA
3 X084845.76-431732.3 08 48 45.77 -43 17 32.28 10.88 CHANDRA
4 CXOGSG J084837.4-431725 08 48 37.44 -43 17 25.44 11.22 CHANDRA
5 CXOGSG J084811.4-431911 08 48 11.50 -43 19 11.64 11.62 CHANDRA
X084811.48-431911.8 08 48 11.47 -43 19 11.64 11.62 CHANDRA
2CXO J084811.4-431911 08 48 11.47 -43 19 11.64 11.62 CHANDRA
6 X084805.02-431857.4 08 48 05.02 -43 18 57.24 12.55 CHANDRA
CXOGSG J084805.0-431857 08 48 05.02 -43 18 57.24 12.55 CHANDRA
2CXO J084805.0-431857 08 48 05.02 -43 18 57.24 12.55 CHANDRA
7 X084806.89-431644.6 08 48 06.89 -43 16 44.76 14.10 CHANDRA
CXOGSG J084806.8-431644 08 48 06.89 -43 16 44.40 14.10 CHANDRA
2CXO J084806.8-431644 08 48 06.89 -43 16 44.40 14.10 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 TGSSADR J084858.7-433258 08 48 58.80 -43 32 57.84 4.82 GMRTAS150M
MGPS J084858-433300 08 48 58.80 -43 32 60.00 4.85 MGPS2
2 TGSSADR J084839.6-432322 08 48 39.70 -43 23 22.92 5.38 GMRTAS150M
[SPT2015] ATCA J0848-4323 08 48 40.20 -43 23 18.96 5.41 FER2FUSRID
[PME2013] J0848-4323 08 48 40.20 -43 23 18.96 5.41 AT2FGLUS
MGPS J084839-432320 08 48 39.70 -43 23 20.04 5.43 MGPS2
3 HD 75608 08 49 21.29 -43 22 14.88 8.29 HIC
HIP 43303 08 49 21.26 -43 22 14.52 8.29 HIPPARCOS
PPM 313647 08 49 21.29 -43 22 14.52 8.29 PPM
CD-42 4676 08 49 21.29 -43 22 14.52 8.29 ACRS
SAO 220523 08 49 21.26 -43 22 13.44 8.30 SAO
4 PMN J0849-4335 08 49 22.61 -43 35 56.04 9.52 PMN
5 [PME2013] J0848-4319 08 48 11.71 -43 19 12.00 11.60 AT2FGLUS
TGSSADR J084811.3-431913 08 48 11.40 -43 19 14.16 11.61 GMRTAS150M
[SPT2015] ATCA J0848-4319 08 48 11.40 -43 19 10.92 11.64 FER2FUSRID
MGPS J084811-431911 08 48 11.40 -43 19 10.92 11.64 MGPS2
6 PPM 756184 08 47 54.17 -43 34 02.28 11.69 PPM
WDS J08479-4334 08 47 54.00 -43 34 00.12 11.70 WDS
7 MGPS J084917-433916 08 49 16.99 -43 39 15.84 11.89 MGPS2
8 SAO 220489 08 47 54.12 -43 21 14.40 12.50 SAO
HD 75364 08 47 53.93 -43 21 15.48 12.52 HIC
HIP 43187 08 47 53.93 -43 21 15.48 12.52 HIPPARCOS
CD-42 4638 08 47 53.90 -43 21 15.48 12.52 ACRS
PPM 313612 08 47 53.90 -43 21 15.12 12.53 PPM
WDS J08479-4321 08 47 54.00 -43 21 00.00 12.66 WDS
9 TGSSADR J084812.1-431742 08 48 12.10 -43 17 43.08 12.76 GMRTAS150M
10 WDS J08479-4320 08 47 54.00 -43 19 59.88 13.27 WDS
11 PSR J0847-4316 08 47 57.31 -43 16 57.00 14.99 ATNFPULSAR

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