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.

3FGL J1818.5+1320

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1818.5+1320 Swift-XRT detections in the field for 3FGL J1818.5+1320


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 18 23.76 +13 21 30.39 7.09 (3.2 ± 1.2) x 10-3 11 2.467 2.690

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1818.5+1320 Swift-XRT image with known radio, optical and UV sources for 3FGL J1818.5+1320


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 PGC 1428051 18 18 43.61 +13 19 05.16 3.09 PGC2003
PGC 1428179 18 18 44.21 +13 19 22.08 3.13 PGC2003
2 UGC 11196 18 18 30.02 +13 16 15.96 4.01 UGC
MCG+02-46-013 18 18 30.00 +13 16 15.60 4.01 MCG
3 PGC 95741 18 18 48.70 +13 19 59.16 4.11 PGC2003
4 N6615 18 18 33.48 +13 15 55.08 4.34 ZCAT
NGC 6615 18 18 33.50 +13 15 55.08 4.35 RC3
PGC 61713 18 18 33.50 +13 15 55.08 4.35 PGC2003
UZC J181833.4+131554 18 18 33.41 +13 15 54.00 4.36 UZC
5 NGC 6615 18 18 36.00 +13 16 00.12 4.36 NGC2000
6 A1816+1319 18 18 49.90 +13 20 31.20 4.40 ZCAT
7 PGC 2809246 18 18 47.11 +13 17 27.96 4.64 PGC2003
8 PGC 1430207 18 18 12.91 +13 24 16.92 6.13 PGC2003
9 BD+13 3598 18 18 41.62 +13 26 02.40 6.26 ACRS
PPM 134543 18 18 41.64 +13 26 02.40 6.27 PPM
SAO 103593 18 18 41.66 +13 26 02.76 6.28 SAO
10 WDS J18190+1315 18 19 00.00 +13 15 00.00 8.63 WDS
TGSSADR J181759.6+131434 18 17 59.59 +13 14 34.08 9.67 GMRTAS150M
11 NVSS J181759+131436 18 17 59.30 +13 14 35.88 9.72 NVSS
12 PGC 2809272 18 19 10.90 +13 24 33.84 10.44 PGC2003
13 NVSS J181747+131632 18 17 47.59 +13 16 32.16 11.38 NVSS
GLEAM J181846+133124 18 18 46.10 +13 31 24.96 11.69 GLEAMEGCAT
14 NVSS J181844+133135 18 18 44.90 +13 31 36.12 11.79 NVSS
TGSSADR J181845.1+133135 18 18 45.19 +13 31 35.04 11.80 GMRTAS150M
15 PPM 134534 18 18 33.10 +13 32 12.12 11.96 PPM
BD+13 3597 18 18 33.10 +13 32 12.12 11.96 ACRS
SAO 103586 18 18 33.14 +13 32 12.48 11.97 SAO
16 QORG J181849.1+133146 18 18 49.10 +13 31 45.84 12.26 QORGCAT
17 PGC 2809182 18 17 47.90 +13 13 27.12 12.67 PGC2003
TGSSADR J181851.2+133201 18 18 51.19 +13 32 02.04 12.69 GMRTAS150M
18 NVSS J181851+133202 18 18 51.19 +13 32 02.04 12.70 NVSS
19 PGC 2809180 18 17 46.20 +13 31 41.88 15.95 PGC2003

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