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 J1855.6+0753

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1855.6+0753 Swift-XRT detections in the field for 3FGL J1855.6+0753

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 55 20.02 +07 51 38.68 4.97 (5.1 ± 1.0) x 10-3 41 5.503 5.391

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 54 48.25 +08 01 26.36 6.21 (1.0 ± 0.5) x 10-3 10 2.523 2.117
2 18 55 40.10 +07 38 15.60 6.21 (8 ± 4) x 10-4 10 2.161 1.784

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1855.6+0753 Swift-XRT image with known radio, optical and UV sources for 3FGL J1855.6+0753


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 J185524+075448 18 55 24.60 +07 54 47.88 3.90 NVSS
2 NVSS J185521+075339 18 55 21.41 +07 53 39.12 4.30 NVSS
3 NVSS J185527+075628 18 55 27.60 +07 56 27.96 4.40 NVSS
4 NVSS J185520+075140 18 55 20.40 +07 51 39.96 4.70 NVSS
5 NVSS J185556+075602 18 55 56.71 +07 56 02.04 5.42 NVSS
TGSSADR J185556.8+075601 18 55 56.81 +07 56 02.04 5.45 GMRTAS150M
6 PGCC G40.32+2.69 18 55 20.21 +07 47 53.88 6.84 PLANCKGCC
QORG J185605.6+075508 18 56 05.59 +07 55 08.04 7.03 QORGCAT
7 TGSSADR J185606.8+075505 18 56 06.79 +07 55 05.16 7.30 GMRTAS150M
8 W45 18 56 06.91 +07 50 57.84 7.31 DIXON
9 NVSS J185607+075552 18 56 07.39 +07 55 51.96 7.71 NVSS
TGSSADR J185607.5+075556 18 56 07.51 +07 55 57.00 7.75 GMRTAS150M
10 NVSS J185604+075730 18 56 04.70 +07 57 29.88 7.88 NVSS
NSV 24631 18 56 11.30 +07 53 16.08 8.12 GCVSNSVARS
11 NVSS J185609+075015 18 56 09.60 +07 50 16.08 8.17 NVSS
12 NVSS J185612+075340 18 56 12.10 +07 53 39.84 8.33 NVSS
13 V1665 Aql 18 56 09.91 +07 56 08.16 8.37 GCVS
HIP 92943 18 56 09.91 +07 56 08.16 8.37 HIPPARCOS
SAO 124069 18 56 09.94 +07 56 08.16 8.38 SAO
BD+07 3898 18 56 09.94 +07 56 08.52 8.38 ACRS
HD 175677 18 56 09.96 +07 56 08.16 8.39 HIC
PPM 166831 18 56 09.96 +07 56 08.16 8.39 PPM
NSV 24630 18 56 10.01 +07 56 08.16 8.39 GCVSNSVARS
GB6 J1856+0753 18 56 12.41 +07 53 44.16 8.42 GB6
1853+0749 18 56 12.50 +07 53 33.00 8.43 NORTH6CM
1853+0749 18 56 12.50 +07 53 33.00 8.43 NORTH20CM
CC 040+02.5 18 56 12.79 +07 53 39.12 8.51 DIXON
ADG040.5+02.5 18 56 12.79 +07 53 57.84 8.54 DIXON
14 LHS 3422 18 56 11.83 +07 55 56.64 8.75 REVISEDLHS
571- 68 18 56 12.67 +07 56 16.08 9.06 NLTT
15 PCCS2 070 G040.52+02.53 18 56 16.51 +07 54 02.88 9.47 PCCS070GHZ
16 NVSS J185612+075832 18 56 12.60 +07 58 32.88 10.10 NVSS
17 PCCS2 044 G040.52+02.51 18 56 20.59 +07 53 48.12 10.46 PCCS044GHZ
18 NVSS J185609+080021 18 56 09.19 +08 00 21.96 10.58 NVSS
PCCS2 030 G040.53+02.51 18 56 21.10 +07 54 16.92 10.61 PCCS030GHZ
19 BG 1853+07 18 56 12.50 +07 59 57.84 10.92 DIXON
20 NVSS J185458+074557 18 54 58.70 +07 45 56.88 12.13 NVSS
21 LBN 110 18 56 24.91 +07 48 59.04 12.17 LBN
S 76 18 56 25.44 +07 48 46.80 12.36 HIIREGION
TGSSADR J185602.2+080406 18 56 02.21 +08 04 05.88 12.55 GMRTAS150M
22 NVSS J185602+080407 18 56 02.21 +08 04 06.96 12.56 NVSS
23 DA466 18 56 09.60 +08 02 57.84 12.59 DIXON
24 NVSS J185624+080213 18 56 24.60 +08 02 12.84 14.65 NVSS
25 NVSS J185457+080428 18 54 58.01 +08 04 28.92 15.25 NVSS

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