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 J1815.3-1336

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1815.3-1336 Swift-XRT detections in the field for 4FGL J1815.3-1336


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 18 15 21.56 -13 43 32.19 5.76 (10 ± 4) x 10-3 18 3.068 2.374
2 18 15 04.31 -13 39 50.83 7.97 (7 ± 3) x 10-3 9 2.203 2.234
3 18 15 16.19 -13 44 09.00 5.53 (8 ± 4) x 10-3 10 2.768 1.767
4 18 15 15.86 -13 43 57.21 5.53 (6 ± 4) x 10-3 14 2.748 1.650
5 18 15 24.76 -13 43 09.88 5.89 (5 ± 3) x 10-3 13 2.171 1.525

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1815.3-1336 Swift-XRT image with known radio, optical and UV sources for 4FGL J1815.3-1336

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1815.1-1334 18 15 11.40 -13 34 26.40 3.43 ROSAT
2 1WGA J1815.1-1339 18 15 10.30 -13 39 56.88 4.80 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J181525-133653 18 15 25.30 -13 36 54.00 0.78 NVSS
2 NVSS J181529-133931 18 15 29.50 -13 39 32.04 3.56 NVSS
3 NVSS J181458-133628 18 14 58.30 -13 36 29.16 6.06 NVSS
4 PPM 718949 18 14 58.20 -13 39 31.68 6.88 PPM
5 NVSS J181452-133446 18 14 52.99 -13 34 45.84 7.50 NVSS
6 HD 167451 18 15 54.84 -13 34 26.76 7.91 HIC
HIP 89508 18 15 54.86 -13 34 27.84 7.91 HIPPARCOS
BD-13 4897 18 15 54.86 -13 34 27.48 7.91 ACRS
PPM 234253 18 15 54.86 -13 34 27.48 7.91 PPM
SAO 161234 18 15 54.82 -13 34 23.88 7.92 SAO
7 NVSS J181539-134347 18 15 39.41 -13 43 46.92 8.45 NVSS
[WBH2005] G16.594+1.653 18 14 58.70 -13 42 55.08 8.88 WBHGP20CM
TGSSADR J181458.4-134251 18 14 58.51 -13 42 51.12 8.88 GMRTAS150M
8 NVSS J181458-134252 18 14 58.39 -13 42 52.92 8.92 NVSS
9 NVSS J181543-134349 18 15 43.20 -13 43 49.08 8.94 NVSS
[WBH2005] G16.593+1.656 18 14 58.10 -13 42 51.84 8.95 WBHGP20CM
10 NVSS J181535-134510 18 15 35.30 -13 45 10.08 9.33 NVSS
11 PPM 234226 18 14 38.98 -13 28 17.04 13.42 PPM
12 NVSS J181606-132657 18 16 06.00 -13 26 57.84 14.00 NVSS
13 [WBH2005] G16.972+1.602 18 15 54.19 -13 24 25.92 14.07 WBHGP20CM
14 NVSS J181607-132537 18 16 07.39 -13 25 37.92 15.15 NVSS
QORG J181607.6-132534 18 16 07.61 -13 25 33.96 15.23 QORGCAT

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