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 J1729.9-2403

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1729.9-2403 Swift-XRT detections in the field for 4FGL J1729.9-2403

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 17 30 10.42 -24 02 19.23 4.92 (1.1 ± 0.2) x 10-2 43 5.491 5.470

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 30 31.86 -24 11 18.45 6.52 (3.0 ± 1.1) x 10-3 14 2.745 2.835
2 17 29 24.19 -24 09 31.72 5.82 (3.5 ± 1.3) x 10-3 14 2.774 2.643
3 17 29 03.96 -24 05 24.90 6.12 (2.7 ± 1.0) x 10-3 12 2.599 2.592
4 17 29 21.47 -24 13 14.79 7.27 (2.4 ± 1.0) x 10-3 8 2.345 2.475

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1729.9-2403 Swift-XRT image with known radio, optical and UV sources for 4FGL J1729.9-2403

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J173013.0-240234 17 30 13.01 -24 02 34.08 3.10 ROSAT
1RXS J173013.1-240234 17 30 13.10 -24 02 34.44 3.12 ROSAT
2 2CXO J172929.1-235819 17 29 29.14 -23 58 19.20 8.43 CHANDRA
3 2CXO J172924.7-235752 17 29 24.77 -23 57 52.92 9.50 CHANDRA
4 2CXO J172935.0-235515 17 29 35.04 -23 55 15.60 9.62 CHANDRA
5 2CXO J172953.9-235242 17 29 53.90 -23 52 42.60 10.44 CHANDRA
6 2CXO J172951.6-235219 17 29 51.70 -23 52 19.92 10.89 CHANDRA
7 CXOGSG J172927.8-235157 17 29 27.86 -23 51 56.88 13.27 CHANDRA
2CXO J172927.8-235155 17 29 27.84 -23 51 55.44 13.30 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CD-2313403 17 30 10.08 -24 02 15.00 2.53 ACRS
PPM 266939 17 30 10.10 -24 02 15.00 2.53 PPM
SAO 185460 17 30 10.15 -24 02 12.84 2.55 SAO
2 WDS J17302-2402 17 30 12.00 -24 01 59.88 3.02 WDS
3 NVSS J172943-240010 17 29 43.10 -24 00 10.08 4.76 NVSS
4 NVSS J172942-235759 17 29 42.31 -23 58 00.12 6.43 NVSS
5 NVSS J172934-235429 17 29 34.51 -23 54 29.16 10.32 NVSS

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