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.

1FGL J0857.7-4345

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0857.7-4345 Swift-XRT detections in the field for 1FGL J0857.7-4345


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 57 27.91 -43 40 58.89 6.31 (2.5 ± 1.0) x 10-3 15 2.612 2.643
2 08 56 49.56 -43 47 14.47 6.31 (2.1 ± 0.9) x 10-3 10 2.264 2.249

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0857.7-4345 Swift-XRT image with known radio, optical and UV sources for 1FGL J0857.7-4345

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXO J085819.0-434710 08 58 19.01 -43 47 09.96 6.61 CHANDRA
2 CXO J085828.6-434240 08 58 28.68 -43 42 41.04 8.69 CHANDRA
MPCM J085828.69-434239.1 08 58 28.70 -43 42 39.24 8.70 CHANDRA
CXO J085828.69-434239.1 08 58 28.70 -43 42 39.24 8.70 CHANDRA
X085828.75-434239.5 08 58 28.75 -43 42 39.60 8.71 CHANDRA
CXOGSG J085828.7-434239 08 58 28.80 -43 42 39.24 8.72 CHANDRA
3 X085819.41-435228.5 08 58 19.42 -43 52 28.56 9.45 CHANDRA
CXO J085819.4-435228 08 58 19.44 -43 52 28.56 9.46 CHANDRA
4 CXO J085835.2-434312 08 58 35.26 -43 43 12.72 9.67 CHANDRA
CXO J085835.43-434312.7 08 58 35.42 -43 43 12.72 9.70 CHANDRA
CXOGSG J085835.7-434250 08 58 35.74 -43 42 50.40 9.85 CHANDRA
5 CXO J085843.0-434530 08 58 43.20 -43 45 30.96 10.77 CHANDRA
X085843.04-434529.9 08 58 43.39 -43 45 29.88 10.77 CHANDRA
CXOGSG J085843.0-434529 08 58 43.90 -43 45 29.88 10.78 CHANDRA
CXO J085843.09-434531.6 08 58 43.10 -43 45 31.68 10.78 CHANDRA
6 CXO J085838.92-434131.9 08 58 38.93 -43 41 31.92 10.83 CHANDRA
MPCM J085838.92-434131.9 08 58 38.93 -43 41 31.92 10.83 CHANDRA
CXOGSG J085838.9-434132 08 58 38.95 -43 41 32.28 10.83 CHANDRA
CXO J085838.9-434132 08 58 39.00 -43 41 32.64 10.84 CHANDRA
X085838.96-434131.8 08 58 38.95 -43 41 31.92 10.84 CHANDRA
7 CXO J085844.40-434630.3 08 58 44.40 -43 46 30.36 11.05 CHANDRA
8 MPCM J085839.78-434059.9 08 58 39.79 -43 40 59.88 11.19 CHANDRA
CXO J085839.78-434059.9 08 58 39.79 -43 40 59.88 11.19 CHANDRA
CXOGSG J085841.4-434123 08 58 41.50 -43 41 23.28 11.31 CHANDRA
MPCM J085841.48-434122.8 08 58 41.50 -43 41 22.92 11.32 CHANDRA
CXO J085841.48-434122.8 08 58 41.50 -43 41 22.92 11.32 CHANDRA
CXO J085841.5-434123 08 58 41.50 -43 41 22.92 11.32 CHANDRA
X085841.53-434123.6 08 58 41.52 -43 41 23.64 11.32 CHANDRA
9 CXO J085846.52-434712.1 08 58 46.51 -43 47 12.12 11.51 CHANDRA
MPCM J085846.52-434712.1 08 58 46.51 -43 47 12.12 11.51 CHANDRA
CXO J085846.5-434712 08 58 46.56 -43 47 12.48 11.51 CHANDRA
CXOGSG J085846.5-434712 08 58 46.58 -43 47 12.12 11.52 CHANDRA
X085846.58-434712.6 08 58 46.58 -43 47 12.48 11.52 CHANDRA
10 MPCM J085847.73-434628.2 08 58 47.74 -43 46 28.20 11.65 CHANDRA
CXO J085847.73-434628.2 08 58 47.74 -43 46 28.20 11.65 CHANDRA
CXO J085847.7-434628 08 58 47.76 -43 46 28.56 11.65 CHANDRA
CXOGSG J085847.7-434628 08 58 47.76 -43 46 28.20 11.65 CHANDRA
X085847.78-434628.6 08 58 47.78 -43 46 28.56 11.66 CHANDRA
11 CXO J085844.04-434039.8 08 58 44.40 -43 40 39.72 12.02 CHANDRA
12 CXO J085849.54-434726.4 08 58 49.54 -43 47 26.52 12.08 CHANDRA
CXOGSG J085849.6-434726 08 58 49.63 -43 47 26.88 12.10 CHANDRA
CXO J085849.6-434726 08 58 49.68 -43 47 26.16 12.11 CHANDRA
13 CXO J085838.7-435231 08 58 38.76 -43 52 31.44 12.15 CHANDRA
CXO J085844.62-434033.3 08 58 44.64 -43 40 33.24 12.16 CHANDRA
X085838.82-435233.1 08 58 38.81 -43 52 33.24 12.17 CHANDRA
14 X085848.19-434159.8 08 58 48.19 -43 41 59.64 12.25 CHANDRA
15 CXO J085849.40-434126.7 08 58 49.42 -43 41 26.52 12.63 CHANDRA
16 CXO J085845.9-435318 08 58 45.91 -43 53 18.96 13.66 CHANDRA
17 X085833.62-435611.3 08 58 33.62 -43 56 11.40 13.92 CHANDRA
CXO J085833.7-435614 08 58 33.74 -43 56 14.64 13.98 CHANDRA
18 CXO J085840.6-435728 08 58 40.61 -43 57 28.44 15.72 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J085719-433854 08 57 19.39 -43 38 54.96 7.98 MGPS2
TGSSADR J085719.6-433845 08 57 19.70 -43 38 45.96 8.08 GMRTAS150M
2 TGSSADR J085655.5-434334 08 56 55.51 -43 43 33.96 8.88 GMRTAS150M
3 TGSSADR J085849.6-434141 08 58 49.70 -43 41 42.00 12.60 GMRTAS150M
4 TGSSADR J085639.5-433510 08 56 39.60 -43 35 09.96 15.56 GMRTAS150M
MGPS J085639-433509 08 56 39.31 -43 35 09.96 15.60 MGPS2

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