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 J0312.7+2012

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0312.7+2012 Swift-XRT detections in the field for 4FGL J0312.7+2012

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 12 46.60 +20 01 42.49 8.27 (8 ± 2) x 10-3 9 2.503 4.472

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 03 13 28.07 +20 16 23.97 7.27 (2.4 ± 0.9) x 10-3 11 2.664 2.750

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0312.7+2012 Swift-XRT image with known radio, optical and UV sources for 4FGL J0312.7+2012


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
TGSSADR J031240.6+201143 03 12 40.61 +20 11 44.16 2.11 GMRTAS150M
1 NVSS J031240+201141 03 12 40.61 +20 11 42.00 2.14 NVSS
[SPT2015] VLA J0312+2011 03 12 40.51 +20 11 43.08 2.14 FER2FUSRID
[SPT2015] VLA J0312+2016 03 12 47.81 +20 16 01.92 3.04 FER2FUSRID
2 NVSS J031247+201606 03 12 47.81 +20 16 05.88 3.12 NVSS
3 NVSS J031307+201229 03 13 07.90 +20 12 29.88 4.72 NVSS
4 NVSS J031245+201913 03 12 46.01 +20 19 14.16 6.26 NVSS
5 NVSS J031254+202010 03 12 54.31 +20 20 11.04 7.35 NVSS
6 PGCC G162.64-31.66 03 12 56.81 +20 05 13.92 8.04 PLANCKGCC
TGSSADR J031327.2+201125 03 13 27.19 +20 11 26.16 9.36 GMRTAS150M
7 NVSS J031327+201127 03 13 27.41 +20 11 26.88 9.41 NVSS
GLEAM J031328+201149 03 13 28.61 +20 11 49.92 9.63 GLEAMEGCAT
8 NVSS J031329+201233 03 13 29.11 +20 12 33.84 9.70 NVSS
TGSSADR J031329.1+201234 03 13 29.21 +20 12 34.92 9.70 GMRTAS150M
9 SAO 75794 03 12 44.47 +20 23 56.40 10.99 SAO
BD+19 482 03 12 44.40 +20 23 57.48 11.00 ACRS
PPM 92297 03 12 44.40 +20 23 57.84 11.01 PPM
10 PGC 1620082 03 13 36.10 +20 12 38.16 11.32 PGC2003
11 NVSS J031337+200834 03 13 37.39 +20 08 35.16 12.43 NVSS
12 PGC 1622716 03 11 56.81 +20 17 12.12 12.70 PGC2003

Penn State University Goddard Space Flight Center Swift