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 J0402.5+5402

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0402.5+5402 Swift-XRT detections in the field for 4FGL J0402.5+5402

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 02 57.57 +54 00 51.69 4.97 (2.3 ± 0.7) x 10-2 37 4.215 3.449

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 04 02 46.79 +54 03 00.52 5.11 (1.4 ± 0.6) x 10-2 33 3.427 2.625
2 04 02 47.60 +54 02 53.81 5.00 (1.3 ± 0.5) x 10-2 32 3.336 2.525
3 04 02 36.47 +54 04 07.02 5.64 (1.1 ± 0.5) x 10-2 22 2.790 2.175
4 04 02 22.77 +53 48 13.89 7.71 (7 ± 3) x 10-3 6 2.218 2.175
5 04 03 03.12 +53 58 55.43 5.35 (9 ± 4) x 10-3 21 2.556 1.974
6 04 02 04.32 +54 04 58.12 7.71 (8 ± 5) x 10-3 8 2.204 1.810
7 04 03 01.88 +53 59 13.49 5.24 (8 ± 5) x 10-3 27 3.030 1.782
8 04 02 57.74 +54 00 49.77 5.00 (8 ± 5) x 10-3 39 2.485 1.748

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0402.5+5402 Swift-XRT image with known radio, optical and UV sources for 4FGL J0402.5+5402


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
GB6 J0402+5403 04 02 32.90 +54 03 47.88 1.11 GB6
0358+5355 04 02 33.00 +54 03 50.04 1.13 NORTH6CM
WN 0358.6+5355 04 02 32.40 +54 04 09.12 1.46 WENSS
AMIGPS J040233+540412 04 02 33.60 +54 04 12.00 1.48 AMIGPS16GH
7C 035838.9+535552 04 02 32.40 +54 04 10.92 1.49 GP7C151MHZ
CGPS J040232+540411 04 02 32.11 +54 04 10.92 1.50 CGPSNGPCAT
1 NVSS J040232+540411 04 02 32.11 +54 04 10.92 1.51 NVSS
VLSSr J040231.6+540410 04 02 31.61 +54 04 09.84 1.51 VLSSR
TXS 0358+539 04 02 31.80 +54 04 10.92 1.52 TEXAS
TGSSADR J040232.1+540411 04 02 32.11 +54 04 12.00 1.52 GMRTAS150M
2 NVSS J040246+540330 04 02 46.49 +54 03 29.88 1.87 NVSS
CGPS J040246+540324 04 02 46.90 +54 03 24.84 1.88 CGPSNGPCAT
WN 0358.5+5352 04 02 24.70 +54 01 05.16 2.24 WENSS
3 NVSS J040224+540100 04 02 24.41 +54 01 00.12 2.32 NVSS
CGPS J040224+540101 04 02 24.19 +54 01 00.84 2.33 CGPSNGPCAT
4 AS 79 04 02 17.45 +54 04 19.92 3.02 WACKERLING
5 NVSS J040256+540201 04 02 56.11 +54 02 00.96 3.20 NVSS
CGPS J040256+540202 04 02 57.00 +54 02 02.04 3.31 CGPSNGPCAT
6 NVSS J040240+535554 04 02 40.90 +53 55 54.84 6.88 NVSS
CGPS J040240+535548 04 02 40.70 +53 55 49.08 6.98 CGPSNGPCAT
7 NVSS J040204+535647 04 02 04.99 +53 56 48.12 7.39 NVSS
8 NVSS J040153+535819 04 01 53.50 +53 58 19.92 7.51 NVSS
9 QR Cam 04 02 53.78 +54 10 33.60 8.30 GCVS
10 CGPS J040138+540919 04 01 38.50 +54 09 20.16 10.58 CGPSNGPCAT
11 CGPS J040333+535623 04 03 33.41 +53 56 24.00 10.68 CGPSNGPCAT
WN 0357.4+5353 04 01 21.00 +54 01 54.84 10.88 WENSS
TGSSADR J040120.6+540152 04 01 20.71 +54 01 51.96 10.93 GMRTAS150M
12 NVSS J040119+540155 04 01 19.80 +54 01 54.84 11.06 NVSS
CGPS J040119+540156 04 01 19.61 +54 01 55.92 11.09 CGPSNGPCAT
13 HD 25056 04 01 37.37 +53 51 57.60 13.71 HIC
BD+53 722 04 01 37.34 +53 51 57.24 13.71 ACRS
HIP 18795 04 01 37.32 +53 51 57.24 13.71 HIPPARCOS
PPM 28846 04 01 37.34 +53 51 57.24 13.71 PPM
NSV 15863 04 01 37.30 +53 51 56.88 13.72 GCVSNSVARS
SAO 24350 04 01 37.13 +53 51 57.96 13.72 SAO

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