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 J0039.1+6257

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0039.1+6257 Swift-XRT detections in the field for 4FGL J0039.1+6257


No detected excesses found.

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 00 38 26.15 +63 02 33.70 6.78 (3.6 ± 1.4) x 10-3 13 2.680 2.667
2 00 38 45.47 +62 51 45.58 6.52 (3.4 ± 1.3) x 10-3 16 3.202 2.637
3 00 38 31.56 +63 12 26.99 6.78 (3.1 ± 1.3) x 10-3 9 2.741 2.504

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0039.1+6257 Swift-XRT image with known radio, optical and UV sources for 4FGL J0039.1+6257


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 J003845+625609 00 38 45.50 +62 56 09.96 3.02 NVSS
CGPS J003844+625609 00 38 44.50 +62 56 08.88 3.11 CGPSNGPCAT
2 BD+62 127 00 39 25.25 +63 02 37.68 5.35 ACRS
PPM 12371 00 39 25.37 +63 02 37.68 5.36 PPM
HD 3572 00 39 25.32 +63 02 37.68 5.36 HIC
NSV 15141 00 39 25.39 +63 02 38.04 5.36 GCVSNSVARS
HIP 3095 00 39 25.32 +63 02 38.40 5.37 HIPPARCOS
SAO 11314 00 39 25.63 +63 02 38.04 5.37 SAO
CGPS J003955+625848 00 39 55.90 +62 58 49.08 5.49 CGPSNGPCAT
WN 0037.0+6242 00 39 56.71 +62 58 31.08 5.53 WENSS
3 NVSS J003956+625849 00 39 56.30 +62 58 49.08 5.54 NVSS
4 NVSS J003810+625709 00 38 10.61 +62 57 10.08 6.62 NVSS
5 SAO 11310 00 38 56.28 +62 50 40.92 7.08 SAO
PPM 12367 00 38 56.45 +62 50 39.48 7.10 PPM
BD+62 125 00 38 56.40 +62 50 39.48 7.10 ACRS
6 V548 Cas 00 38 09.96 +62 53 45.96 7.71 GCVS
7 DP 28 00 40 13.58 +62 54 28.08 8.03 WACKERLING
8 NVSS J003951+630418 00 39 51.19 +63 04 18.84 8.25 NVSS
CGPS J003952+630417 00 39 52.20 +63 04 18.12 8.30 CGPSNGPCAT
9 SAO 11304 00 38 10.42 +62 51 12.24 9.23 SAO
PPM 12360 00 38 09.96 +62 51 11.16 9.28 PPM
BD+62 123 00 38 09.86 +62 51 11.16 9.29 ACRS
10 CGPS J003824+630536 00 38 24.79 +63 05 35.88 9.41 CGPSNGPCAT
11 PGCC G121.47+0.28 00 38 31.20 +63 06 47.16 10.11 PLANCKGCC
CGPS J004021+625134 00 40 22.01 +62 51 34.92 10.30 CGPSNGPCAT
12 NVSS J004022+625135 00 40 22.51 +62 51 34.92 10.34 NVSS
13 WDS J00383+6249 00 38 18.00 +62 49 00.12 10.37 WDS
S179 00 40 25.20 +62 51 57.60 10.39 HIIREGION
BV 5-2 00 40 21.65 +62 51 16.56 10.45 PLNEBULAE
14 NVSS J003758+630706 00 37 58.99 +63 07 06.96 12.35 NVSS
15 WDS J00379+6247 00 37 54.00 +62 46 59.88 13.61 WDS

Penn State University Goddard Space Flight Center Swift