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 J1709.4-2127

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1709.4-2127 Swift-XRT detections in the field for 4FGL J1709.4-2127

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 09 36.51 -21 28 34.03 7.71 (7 ± 2) x 10-3 11 2.523 3.123

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 09 24.05 -21 30 37.28 6.93 (7 ± 2) x 10-3 14 2.725 2.910

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1709.4-2127 Swift-XRT image with known radio, optical and UV sources for 4FGL J1709.4-2127


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 J170931-212715 17 09 31.61 -21 27 15.12 1.45 NVSS
2 NVSS J170935-212750 17 09 36.00 -21 27 51.12 2.51 NVSS
TGSSADR J170936.0-212754 17 09 36.00 -21 27 55.08 2.53 GMRTAS150M
3 GLEAM J170936-212824 17 09 36.41 -21 28 23.88 2.76 GLEAMEGCAT
WISH B1706.6-2124 17 09 36.41 -21 28 32.16 2.81 WISH
4 PMN J1709-2129 17 09 35.30 -21 29 04.92 2.87 PMN
QORG J170937.2-212835 17 09 37.20 -21 28 35.04 3.00 QORGCAT
5 NVSS J170924-213039 17 09 24.19 -21 30 39.96 3.29 NVSS
TGSSADR J170937.2-212920 17 09 37.20 -21 29 21.12 3.38 GMRTAS150M
6 NVSS J170937-212921 17 09 37.20 -21 29 21.84 3.40 NVSS
7 TXS 1706-214 17 09 42.41 -21 27 46.08 3.97 TEXAS
8 NVSS J170906-212515 17 09 06.10 -21 25 15.96 4.96 NVSS
TGSSADR J170905.9-212514 17 09 06.00 -21 25 14.16 5.00 GMRTAS150M
WISH B1706.1-2121 17 09 06.10 -21 25 10.92 5.00 WISH
9 V1484 Oph 17 09 47.47 -21 30 58.32 6.27 GCVS
10 V1473 Oph 17 09 26.38 -21 34 19.56 6.95 GCVS
11 NVSS J170907-212042 17 09 07.20 -21 20 43.08 7.91 NVSS
12 V1460 Oph 17 09 08.62 -21 36 00.72 9.47 GCVS
13 NVSS J171001-213158 17 10 01.80 -21 31 59.16 9.64 NVSS
14 NVSS J171005-213045 17 10 05.81 -21 30 45.00 9.99 NVSS
15 V1493 Oph 17 09 57.58 -21 20 32.28 10.15 GCVS
16 V1451 Oph 17 08 57.07 -21 37 14.16 11.85 GCVS
17 V1440 Oph 17 08 37.13 -21 32 11.76 12.21 GCVS
GLEAM J170845-213548 17 08 45.10 -21 35 48.12 12.60 GLEAMEGCAT
WISH B1705.7-2131 17 08 44.11 -21 35 44.88 12.74 WISH
18 NVSS J170844-213553 17 08 44.21 -21 35 53.16 12.80 NVSS
TGSSADR J170844.2-213553 17 08 44.21 -21 35 53.88 12.80 GMRTAS150M
19 V1500 Oph 17 10 15.12 -21 36 51.84 14.96 GCVS

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