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.

1FGL J1515.5+5448

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J1515.5+5448 Swift-XRT detections in the field for 1FGL J1515.5+5448

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 15 06.56 +54 39 13.65 6.21 (3.8 ± 1.1) x 10-3 16 3.629 3.510

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 15 14 54.25 +55 00 06.27 6.12 (2.7 ± 1.0) x 10-3 12 2.854 2.724
2 15 15 29.91 +55 00 25.16 6.78 (2.0 ± 0.8) x 10-3 11 2.643 2.396

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1515.5+5448 Swift-XRT image with known radio, optical and UV sources for 1FGL J1515.5+5448

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1514.7+5450 15 14 43.80 +54 50 17.16 7.51 ROSAT
2 2RXS J151448.1+545218 15 14 48.19 +54 52 18.48 7.75 ROSAT
2RXS J151448.1+545218 15 14 48.19 +54 52 18.48 7.75 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
FIRST J151531.6+545037 15 15 31.70 +54 50 38.04 2.44 FIRST
1 NVSS J151532+545040 15 15 32.30 +54 50 39.84 2.47 NVSS
FIRST J151533.5+545044 15 15 33.60 +54 50 44.88 2.53 FIRST
FIRST J151537.1+545201 15 15 37.20 +54 52 00.84 3.83 FIRST
WN 1514.2+5503 15 15 36.31 +54 52 13.08 4.02 WENSS
2 NVSS J151536+545215 15 15 36.00 +54 52 14.88 4.05 NVSS
FIRST J151536.0+545215 15 15 36.10 +54 52 14.88 4.05 FIRST
TGSSADR J151536.1+545216 15 15 36.10 +54 52 15.96 4.07 GMRTAS150M
VLSSr J151534.7+545224 15 15 34.70 +54 52 24.96 4.20 VLSSR
FIRST J151527.4+545351 15 15 27.50 +54 53 51.00 5.72 FIRST
WN 1514.0+5504 15 15 27.29 +54 53 53.88 5.77 WENSS
3 NVSS J151526+545403 15 15 26.90 +54 54 02.88 5.92 NVSS
FIRST J151527.6+545407 15 15 27.60 +54 54 07.92 5.98 FIRST
4 NVSS J151444+545030 15 14 44.59 +54 50 30.84 7.46 NVSS
FIRST J151444.1+545027 15 14 44.09 +54 50 27.96 7.52 FIRST
FIRST J151444.1+545037 15 14 44.21 +54 50 36.96 7.56 FIRST
5 FIRST J151607.0+545552 15 16 07.10 +54 55 51.96 9.02 FIRST
WN 1513.2+5502 15 14 36.10 +54 51 47.16 9.05 WENSS
TGSSADR J151606.9+545555 15 16 06.91 +54 55 55.92 9.06 GMRTAS150M
6 NVSS J151436+545154 15 14 36.10 +54 51 54.00 9.10 NVSS
VLSSr J151604.1+545615 15 16 04.20 +54 56 16.08 9.15 VLSSR
FIRST J151435.5+545155 15 14 35.59 +54 51 56.16 9.18 FIRST
7 NVSS J151604+545618 15 16 04.30 +54 56 17.88 9.19 NVSS
WN 1514.7+5507 15 16 04.70 +54 56 17.88 9.21 WENSS
7C 151443.4+550715 15 16 05.30 +54 56 16.08 9.22 UC7C151MHZ
TGSSADR J151603.7+545624 15 16 03.79 +54 56 24.00 9.25 GMRTAS150M
FIRST J151603.0+545629 15 16 03.10 +54 56 30.12 9.28 FIRST
FIRST J151519.2+545910 15 15 19.20 +54 59 09.96 11.16 FIRST
8 NVSS J151518+545909 15 15 18.70 +54 59 09.96 11.16 NVSS
9 FIRST J151638.5+544105 15 16 38.59 +54 41 06.00 11.74 FIRST
10 NVSS J151421+544229 15 14 21.10 +54 42 29.88 11.96 NVSS
FIRST J151420.9+544228 15 14 21.00 +54 42 29.16 11.98 FIRST
FIRST J151454.9+545909 15 14 54.91 +54 59 09.96 12.30 FIRST
11 NVSS J151454+545911 15 14 54.41 +54 59 12.12 12.36 NVSS

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