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 J0849.5+2710

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0849.5+2710 Swift-XRT detections in the field for 4FGL J0849.5+2710

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 49 57.20 +27 16 09.25 5.53 (2.8 ± 0.7) x 10-3 24 3.831 3.833
2 08 49 35.51 +27 01 23.31 5.44 (3.4 ± 0.9) x 10-3 22 3.678 3.734

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 50 09.97 +27 11 38.47 5.96 (1.7 ± 0.6) x 10-3 15 2.832 2.720
2 08 49 15.79 +27 04 19.23 5.14 (1.9 ± 0.8) x 10-3 20 2.801 2.605
3 08 48 48.58 +27 13 34.05 5.40 (1.2 ± 0.6) x 10-3 15 2.432 2.077
4 08 49 13.14 +27 03 35.74 5.11 (1.3 ± 0.6) x 10-3 19 2.978 2.063

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0849.5+2710 Swift-XRT image with known radio, optical and UV sources for 4FGL J0849.5+2710

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J084902.4+270841 08 49 02.45 +27 08 40.56 6.71 XMM-NEWTON
XMMSL2 J084902.4+270841 08 49 02.45 +27 08 40.56 6.71 XMM-NEWTON
2 1RXS J084917.0+271651 08 49 16.99 +27 16 50.88 7.34 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 FIRST J084938.8+270802 08 49 38.90 +27 08 03.12 2.74 FIRST
2 FIRST J084919.0+270907 08 49 19.10 +27 09 07.92 3.04 FIRST
FIRST J084917.0+270713 08 49 16.99 +27 07 13.08 4.48 FIRST
QORG J084916.9+270711 08 49 16.90 +27 07 10.92 4.52 QORGCAT
3 NVSS J084916+270709 08 49 16.51 +27 07 09.84 4.61 NVSS
4 NVSS J084926+271546 08 49 26.11 +27 15 46.08 5.63 NVSS
FIRST J084925.8+271550 08 49 25.80 +27 15 50.04 5.71 FIRST
FIRST J084923.6+270247 08 49 23.71 +27 02 48.12 7.69 FIRST
5 NVSS J084923+270242 08 49 24.00 +27 02 43.08 7.76 NVSS
6 NVSS J084913+270330 08 49 13.51 +27 03 30.96 7.90 NVSS
FIRST J084913.3+270329 08 49 13.39 +27 03 29.88 7.91 FIRST
QORG J084913.3+270330 08 49 13.30 +27 03 29.88 7.92 QORGCAT
TGSSADR J084913.3+270329 08 49 13.39 +27 03 29.16 7.92 GMRTAS150M
7 FIRST J084948.4+271819 08 49 48.50 +27 18 20.16 8.87 FIRST
8 NVSS J085011+270710 08 50 11.50 +27 07 10.92 9.37 NVSS
FIRST J085012.0+270707 08 50 12.10 +27 07 06.96 9.51 FIRST
9 FIRST J084933.1+270043 08 49 33.10 +27 00 43.92 9.55 FIRST
10 FIRST J084939.0+270044 08 49 39.10 +27 00 45.00 9.67 FIRST
11 PGC 1798859 08 50 14.90 +27 08 18.96 9.80 PGC2003
12 BD+27 1671 08 49 04.46 +27 18 25.56 10.15 ACRS
PPM 99065 08 49 04.42 +27 18 25.56 10.16 PPM
QORG J085013.5+271445 08 50 13.51 +27 14 44.88 10.31 QORGCAT
13 FIRST J085013.5+271446 08 50 13.61 +27 14 45.96 10.34 FIRST
FIRST J084856.5+271815 08 48 56.50 +27 18 15.84 11.18 FIRST
TGSSADR J084856.4+271815 08 48 56.50 +27 18 15.84 11.19 GMRTAS150M
14 NVSS J084856+271816 08 48 56.40 +27 18 15.84 11.20 NVSS
QORG J084849.6+271653 08 48 49.61 +27 16 53.04 11.46 QORGCAT
15 FIRST J084849.7+271656 08 48 49.80 +27 16 57.00 11.47 FIRST
FIRST J084924.3+265823 08 49 24.41 +26 58 23.16 12.01 FIRST
QORG J084924.2+265821 08 49 24.19 +26 58 21.00 12.05 QORGCAT
TGSSADR J084915.9+265832 08 49 16.01 +26 58 32.16 12.25 GMRTAS150M
FIRST J084915.7+265832 08 49 15.79 +26 58 32.88 12.25 FIRST
16 NVSS J084916+265830 08 49 16.30 +26 58 31.08 12.26 NVSS
FIRST J084917.6+265822 08 49 17.71 +26 58 22.08 12.31 FIRST
FIRST J084911.0+265829 08 49 11.11 +26 58 28.92 12.66 FIRST
QORG J084911.0+265828 08 49 10.99 +26 58 27.84 12.68 QORGCAT
17 NVSS J084911+265827 08 49 10.99 +26 58 27.84 12.69 NVSS
FIRST J085006.1+265950 08 50 06.10 +26 59 49.92 12.94 FIRST
18 NVSS J085006+265944 08 50 06.41 +26 59 44.16 13.06 NVSS
19 FIRST J085006.0+265913 08 50 06.00 +26 59 13.92 13.43 FIRST
20 PGC 1805051 08 50 20.81 +27 20 21.12 14.85 PGC2003

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