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 J0836.0-5458

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0836.0-5458 Swift-XRT detections in the field for 4FGL J0836.0-5458


No detected excesses found.

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 37 01.28 -55 03 26.76 5.76 (2.7 ± 1.0) x 10-3 13 3.134 2.664
2 08 37 24.06 -55 07 17.79 6.04 (3.0 ± 1.2) x 10-3 13 3.053 2.481
3 08 36 39.26 -55 07 59.57 4.83 (2.6 ± 1.1) x 10-3 26 4.151 2.425
4 08 36 29.54 -55 10 55.14 5.31 (1.6 ± 0.8) x 10-3 19 2.822 1.953
5 08 35 56.40 -55 09 53.46 5.08 (1.5 ± 0.9) x 10-3 15 2.477 1.709

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0836.0-5458 Swift-XRT image with known radio, optical and UV sources for 4FGL J0836.0-5458

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J083623.2-544636 08 36 23.21 -54 46 36.12 11.86 ROSAT
1RXS J083723.3-550719 08 37 23.30 -55 07 18.84 14.38 ROSAT
1RXS J083723.3-550719 08 37 23.30 -55 07 18.84 14.38 ROSAT
1RXS J083723.3-550719 08 37 23.30 -55 07 18.84 14.38 ROSAT
2 XMMSL2 J083724.6-550710 08 37 24.65 -55 07 10.20 14.44 XMM-NEWTON
3 2RXS J083725.2-550810 08 37 25.27 -55 08 10.32 15.14 ROSAT
4 1RXS J083723.7-550843 08 37 23.71 -55 08 43.44 15.35 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J083609-550207 08 36 09.79 -55 02 07.08 3.98 MGPS2
QORG J083604.8-550221 08 36 04.80 -55 02 21.12 4.16 QORGCAT
2 MGPS J083603-550221 08 36 03.50 -55 02 21.84 4.19 MGPS2
3 PPM 337055 08 35 53.88 -54 51 50.76 6.57 PPM
4 PGC 2791015 08 36 47.30 -54 51 46.08 8.77 PGC2003
5 PPM 337050 08 35 29.90 -55 06 09.72 9.49 PPM
CD-54 2276 08 35 29.90 -55 06 09.72 9.49 ACRS
HIP 42152 08 35 29.93 -55 06 10.08 9.49 HIPPARCOS
HD 73369 08 35 29.90 -55 06 10.44 9.50 HIC
SAO 236107 08 35 29.74 -55 06 11.52 9.53 SAO
6 PPM 768222 08 37 10.51 -55 06 25.20 12.40 PPM
7 Y-C 41 08 34 48.00 -55 04 00.12 12.57 PLNEBULAE
PGC 413124 08 34 46.51 -55 03 42.12 12.63 PGC2003
8 WDS J08373-5507 08 37 18.00 -55 07 00.12 13.59 WDS
NGC 2640 08 37 24.00 -55 07 00.12 14.26 NGC2000
9 MGPS J083724-550727 08 37 24.41 -55 07 27.84 14.59 MGPS2
N2640 08 37 24.77 -55 07 23.52 14.59 ZCAT
ESO 083604-5456.9 08 37 24.72 -55 07 26.40 14.61 ESOUPPSALA
NGC 2640 08 37 24.70 -55 07 27.12 14.62 RC3
PGC 24229 08 37 24.70 -55 07 27.12 14.62 PGC2003
PMN J0837-5507 08 37 23.59 -55 07 44.04 14.68 PMN

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