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 J1727.6-0849

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1727.6-0849 Swift-XRT detections in the field for 4FGL J1727.6-0849


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 17 26 57.60 -08 56 21.66 7.97 (4 ± 2) x 10-3 9 2.708 2.794
2 17 27 53.93 -08 46 44.43 7.27 (2.6 ± 1.0) x 10-3 9 2.420 2.471
3 17 26 58.13 -08 46 23.48 7.97 (2.0 ± 0.9) x 10-3 7 2.169 2.176

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1727.6-0849 Swift-XRT image with known radio, optical and UV sources for 4FGL J1727.6-0849

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SACSTP J172728.9-085101 17 27 28.94 -08 51 01.44 3.31 SWIFT
2 SACSHP J172714.9-085208 17 27 14.88 -08 52 08.40 6.88 SWIFT
3 SACSTP J172725.2-084229 17 27 25.20 -08 42 28.44 7.55 SWIFT
4 SACSTP J172733.6-084107 17 27 33.60 -08 41 07.08 8.13 SWIFT
SACSSP J172733.7-084106 17 27 33.74 -08 41 06.36 8.13 SWIFT
5 SACSHP J172705.3-084917 17 27 05.26 -08 49 16.68 8.55 SWIFT
6 SACSSP J172716.4-084116 17 27 16.44 -08 41 16.08 9.73 SWIFT
7 SACSTP J172659.8-084610 17 26 59.76 -08 46 09.84 10.33 SWIFT
8 1RXS J172658.3-084435 17 26 58.30 -08 44 35.16 11.21 ROSAT
9 SACSSP J172657.7-085626 17 26 57.70 -08 56 25.80 12.73 SWIFT
10 SACSTP J172718.2-083710 17 27 18.22 -08 37 10.20 13.07 SWIFT
SACSSP J172718.2-083707 17 27 18.24 -08 37 07.32 13.11 SWIFT
11 SACSTP J172700.0-083848 17 26 59.98 -08 38 48.12 14.25 SWIFT
12 1RXS J172655.4-085955 17 26 55.39 -08 59 55.68 15.42 ROSAT
2RXS J172655.2-085954 17 26 55.22 -08 59 54.96 15.44 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J172753-084623 17 27 54.00 -08 46 23.16 4.42 NVSS
2 NVSS J172754-084501 17 27 54.60 -08 45 01.08 5.48 NVSS
VLSSr J172750.1-084408 17 27 50.21 -08 44 08.16 5.58 VLSSR
GLEAM J172751-084404 17 27 51.79 -08 44 04.92 5.83 GLEAMEGCAT
3 NVSS J172750-084351 17 27 50.50 -08 43 51.96 5.86 NVSS
4 NVSS J172741-085523 17 27 41.11 -08 55 23.16 6.30 NVSS
5 NVSS J172744-085655 17 27 44.50 -08 56 56.04 7.92 NVSS
6 DENISP_G_J1727333-084058 17 27 33.29 -08 40 58.08 8.29 DENISIGAL
7 NVSS J172705-084745 17 27 05.69 -08 47 44.88 8.54 NVSS
8 NVSS J172705-084943 17 27 05.11 -08 49 42.96 8.61 NVSS
9 NVSS J172741-084021 17 27 41.50 -08 40 22.08 8.75 NVSS
SPASS J172711-085433 17 27 11.11 -08 54 33.12 8.96 SPASS2P3GH
VLSSr J172709.7-085432 17 27 09.70 -08 54 33.12 9.22 VLSSR
GLEAM J172709-085432 17 27 09.41 -08 54 32.04 9.28 GLEAMEGCAT
TXS 1724-088 17 27 09.31 -08 54 32.04 9.31 TEXAS
10 NVSS J172709-085433 17 27 09.31 -08 54 33.12 9.31 NVSS
TGSSADR J172709.1-085433 17 27 09.10 -08 54 33.12 9.34 GMRTAS150M
1724-088 17 27 09.19 -08 54 42.84 9.42 MRC
PMN J1727-0854 17 27 08.30 -08 54 47.88 9.65 PMN
11 NVSS J172802-084007 17 28 02.69 -08 40 08.04 10.60 NVSS
12 687- 38 17 28 17.83 -08 44 00.24 10.68 NLTT
13 PPM 200688 17 27 57.29 -08 58 52.68 10.69 PPM
14 NVSS J172654-084644 17 26 54.10 -08 46 45.12 11.54 NVSS
15 DENISP_G_J1728113-084021 17 28 11.30 -08 40 21.00 11.70 DENISIGAL
16 NVSS J172800-090028 17 28 00.60 -09 00 29.16 12.49 NVSS
17 PPM 200692 17 28 15.14 -08 39 29.52 12.98 PPM
BD-08 4445 17 28 15.19 -08 39 29.16 12.99 ACRS
18 WDS J17283-0839 17 28 18.00 -08 39 00.00 13.82 WDS
QORG J172706.4-083709 17 27 06.41 -08 37 09.12 14.53 QORGCAT
19 NVSS J172706-083710 17 27 06.10 -08 37 09.84 14.55 NVSS

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