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 J0910.1-1816

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0910.1-1816 Swift-XRT detections in the field for 4FGL J0910.1-1816

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 10 03.85 -18 16 13.99 4.15 (2.5 ± 0.3) x 10-2 117 10.100 10.090
2 09 09 45.25 -18 08 34.84 5.59 (4.9 ± 1.1) x 10-3 22 4.425 4.246
3 09 10 57.45 -18 12 27.79 6.78 (3.2 ± 0.9) x 10-3 14 3.206 3.504

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 09 10 32.26 -18 09 57.06 5.89 (2.5 ± 0.9) x 10-3 15 2.954 2.822
2 09 09 27.42 -18 19 02.27 7.48 (1.6 ± 0.7) x 10-3 8 2.309 2.343

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0910.1-1816 Swift-XRT image with known radio, optical and UV sources for 4FGL J0910.1-1816

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J091003.9-181608 09 10 04.27 -18 16 17.04 0.91 XMM-NEWTON
XMMSL2 J091003.9-181608 09 10 03.96 -18 16 08.04 0.97 XMM-NEWTON
XMMSL2 J091003.9-181608 09 10 03.96 -18 16 08.04 0.97 XMM-NEWTON
2RXS J091002.9-181600 09 10 02.90 -18 16 00.84 1.22 ROSAT
2RXS J091002.9-181600 09 10 02.90 -18 16 00.84 1.22 ROSAT
2 2RXS J091041.0-180646 09 10 41.02 -18 06 46.08 12.19 ROSAT
2RXS J091041.0-180646 09 10 41.02 -18 06 46.08 12.19 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J091003-181611 09 10 04.01 -18 16 12.00 0.97 NVSS
QORG J091003.8-181613 09 10 03.79 -18 16 13.08 1.01 QORGCAT
GLEAM J090949-181435 09 09 49.30 -18 14 35.88 4.71 GLEAMEGCAT
2 NVSS J090949-181429 09 09 49.39 -18 14 29.04 4.72 NVSS
QORG J090949.2-181434 09 09 49.20 -18 14 34.08 4.73 QORGCAT
WISH B0907.4-1756B 09 09 49.51 -18 14 16.08 4.77 WISH
TGSSADR J090949.0-181429 09 09 49.10 -18 14 30.12 4.79 GMRTAS150M
3 PGC 871433 09 10 14.30 -18 11 31.92 4.81 PGC2003
QORG J091025.3-182026 09 10 25.30 -18 20 26.16 5.96 QORGCAT
4 NVSS J091025-182026 09 10 25.39 -18 20 26.16 5.98 NVSS
GLEAM J091025-182028 09 10 25.39 -18 20 27.96 6.01 GLEAMEGCAT
TGSSADR J091025.5-182028 09 10 25.51 -18 20 27.96 6.02 GMRTAS150M
5 OK-112 09 09 43.80 -18 18 15.12 6.14 DIXON
WISH B0908.1-1808 09 10 25.51 -18 20 39.84 6.17 WISH
WISH B0907.4-1756 09 09 45.41 -18 08 53.88 8.99 WISH
SPASS J090944-180854 09 09 44.90 -18 08 53.88 9.06 SPASS2P3GH
WISH B0907.4-1756A 09 09 45.19 -18 08 39.12 9.22 WISH
AT20G J090945-180836 09 09 45.19 -18 08 35.88 9.25 AT20G
TGSSADR J090945.2-180835 09 09 45.31 -18 08 35.88 9.25 GMRTAS150M
VLSSr J090945.2-180834 09 09 45.31 -18 08 35.16 9.27 VLSSR
GLEAM J090945-180835 09 09 45.19 -18 08 35.16 9.27 GLEAMEGCAT
CRATES J090944-180837 09 09 45.31 -18 08 34.08 9.28 CRATES
6 NVSS J090945-180833 09 09 45.31 -18 08 33.00 9.29 NVSS
TXS 0907-179 09 09 45.19 -18 08 33.00 9.29 TEXAS
CRATES J090944-180837 09 09 45.19 -18 08 33.00 9.29 CRATES
PMN J0909-1808 09 09 44.50 -18 08 36.96 9.34 PMN
PCCS2 217 G246.68+19.75 09 09 43.39 -18 08 29.04 9.61 PCCS217GHZ
7 PCCS2 100 G246.67+19.74 09 09 39.50 -18 07 59.88 10.56 PCCS100GHZ
8 PCCS2 143 G246.65+19.76 09 09 40.99 -18 06 37.08 11.45 PCCS143GHZ
WISH B0907.5-1815 09 09 51.60 -18 27 25.92 11.99 WISH
GLEAM J090951-182731 09 09 51.60 -18 27 30.96 12.07 GLEAMEGCAT
9 NVSS J090952-182745 09 09 52.01 -18 27 45.00 12.26 NVSS
TGSSADR J090951.9-182746 09 09 51.91 -18 27 47.16 12.28 GMRTAS150M

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