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 J0544.8+5209

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0544.8+5209 Swift-XRT detections in the field for 4FGL J0544.8+5209

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 44 57.06 +52 08 47.95 5.44 (5.2 ± 1.1) x 10-3 32 4.571 4.596
2 05 44 24.82 +52 15 14.25 5.31 (5.1 ± 1.1) x 10-3 29 4.818 4.593
3 05 45 30.07 +52 09 36.04 6.04 (3.2 ± 0.9) x 10-3 18 3.606 3.610
4 05 45 33.69 +52 01 27.54 5.28 (3.5 ± 1.0) x 10-3 24 4.393 3.410

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 05 45 05.41 +52 00 20.42 6.12 (1.4 ± 0.7) x 10-3 17 2.616 2.067
2 05 45 08.76 +52 00 04.33 6.12 (1.2 ± 0.6) x 10-3 11 2.258 1.937

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0544.8+5209 Swift-XRT image with known radio, optical and UV sources for 4FGL J0544.8+5209


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
1 NVSS J054457+520849 05 44 57.10 +52 08 49.92 1.10 NVSS
2 NVSS J054429+520810 05 44 30.00 +52 08 09.96 3.69 NVSS
3 NVSS J054518+521321 05 45 18.79 +52 13 21.00 5.55 NVSS
WN 0541.3+5212 05 45 19.01 +52 13 26.04 5.63 WENSS
4 +52:994 05 45 29.45 +52 09 48.24 5.73 NLTT
HIP 27165 05 45 29.78 +52 09 41.40 5.78 HIPPARCOS
HD 38007 05 45 29.88 +52 09 39.96 5.80 HIC
BD+52 994 05 45 29.88 +52 09 39.96 5.80 ACRS
PPM 30015 05 45 29.88 +52 09 40.32 5.80 PPM
SAO 25356 05 45 29.93 +52 09 40.68 5.81 SAO
WDS J05455+5210 05 45 30.00 +52 10 00.12 5.83 WDS
5 PGCC G159.88+11.91 05 45 53.50 +52 11 12.12 9.55 PLANCKGCC
6 NVSS J054427+521828 05 44 27.91 +52 18 29.16 9.61 NVSS
7 NVSS J054557+520711 05 45 57.31 +52 07 10.92 10.30 NVSS
WN 0541.9+5206 05 45 58.01 +52 07 18.84 10.38 WENSS
WN 0540.6+5157 05 44 37.39 +51 59 03.84 10.79 WENSS
8 NVSS J054437+515902 05 44 37.61 +51 59 02.04 10.80 NVSS
VLSSr J054421.4+521950 05 44 21.41 +52 19 50.88 11.26 VLSSR
WN 0540.3+5218 05 44 20.40 +52 19 46.92 11.27 WENSS
TGSSADR J054420.3+521946 05 44 20.30 +52 19 46.92 11.27 GMRTAS150M
9 NVSS J054420+521948 05 44 20.40 +52 19 48.00 11.29 NVSS
10 LBN 751 05 43 59.02 +52 01 18.48 11.63 LBN
11 NVSS J054540+522000 05 45 40.39 +52 19 59.88 12.76 NVSS
12 NVSS J054352+520028 05 43 52.70 +52 00 29.16 12.91 NVSS
QORG J054551.1+520020 05 45 51.10 +52 00 20.16 12.97 QORGCAT
13 NVSS J054551+520016 05 45 51.00 +52 00 15.84 13.01 NVSS
14 LDN 1460 05 44 00.05 +52 21 18.72 14.15 LDN

Penn State University Goddard Space Flight Center Swift