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.

3FGL J0307.3+4916

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0307.3+4916 Swift-XRT detections in the field for 3FGL J0307.3+4916

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 06 59.55 +49 07 46.34 5.40 (1.3 ± 0.3) x 10-2 30 5.128 5.076

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0307.3+4916 Swift-XRT image with known radio, optical and UV sources for 3FGL J0307.3+4916

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J030735.2+490721 03 07 35.28 +49 07 21.72 9.11 XMM-NEWTON
2 3XMM J030812.6+491016 03 08 12.67 +49 10 16.32 10.14 XMM-NEWTON
3 3XMM J030816.5+491107 03 08 16.51 +49 11 07.44 10.20 XMM-NEWTON
4 3XMM J030754.6+490709 03 07 54.67 +49 07 09.12 10.50 XMM-NEWTON
5 3XMM J030750.5+490630 03 07 50.59 +49 06 30.24 10.75 XMM-NEWTON
6 3XMM J030801.8+490531 03 08 01.90 +49 05 31.20 12.50 XMM-NEWTON
7 3XMM J030825.0+490700 03 08 25.30 +49 07 00.84 13.77 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
TGSSADR J030727.1+491512 03 07 27.10 +49 15 11.88 1.28 GMRTAS150M
1 NVSS J030727+491510 03 07 27.10 +49 15 10.08 1.30 NVSS
[SPT2015] VLA J0307+4915 03 07 27.00 +49 15 10.08 1.30 FER2FUSRID
WN 0303.9+4903 03 07 27.70 +49 15 11.16 1.36 WENSS
GB6 J0307+4915 03 07 27.79 +49 15 07.92 1.40 GB6
2 NVSS J030728+492207 03 07 28.99 +49 22 08.04 6.00 NVSS
3 NVSS J030738+492223 03 07 38.30 +49 22 23.88 6.70 NVSS
4 NVSS J030751+492124 03 07 51.19 +49 21 24.12 6.98 NVSS
5 NVSS J030657+491017 03 06 57.19 +49 10 18.12 7.22 NVSS
WN 0303.4+4858 03 06 56.71 +49 10 21.00 7.22 WENSS
TGSSADR J030656.7+491015 03 06 56.81 +49 10 14.88 7.29 GMRTAS150M
6 NVSS J030723+492402 03 07 23.11 +49 24 02.88 7.82 NVSS
7 NVSS J030806+491158 03 08 06.19 +49 11 58.92 8.31 NVSS
8 NVSS J030749+492407 03 07 49.01 +49 24 07.92 9.02 NVSS
9 0304+4911 03 08 04.61 +49 22 40.08 9.42 NORTH6CM
10 NVSS J030640+490831 03 06 40.30 +49 08 30.84 10.32 NVSS
WN 0303.1+4856 03 06 40.20 +49 08 21.84 10.45 WENSS
11 NVSS J030809+490850 03 08 09.91 +49 08 49.92 10.71 NVSS
12 NVSS J030712+492802 03 07 12.41 +49 28 03.00 11.94 NVSS

Penn State University Goddard Space Flight Center Swift