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.

1FGL J1830.1-0425

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J1830.1-0425 Swift-XRT detections in the field for 1FGL J1830.1-0425

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 30 04.35 -04 15 47.96 5.82 (6.4 ± 1.4) x 10-3 24 4.065 4.658
2 18 29 20.99 -04 22 50.35 5.96 (3.6 ± 1.1) x 10-3 15 3.331 3.327

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 29 48.40 -04 29 00.86 5.89 (3.0 ± 1.0) x 10-3 16 2.945 2.869
2 18 30 34.01 -04 22 26.72 6.12 (2.1 ± 0.9) x 10-3 11 2.448 2.372

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1830.1-0425 Swift-XRT image with known radio, optical and UV sources for 1FGL J1830.1-0425


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 J183001-041957 18 30 01.51 -04 19 57.00 5.87 NVSS
TGSSADR J183018.3-043541 18 30 18.31 -04 35 42.00 10.54 GMRTAS150M
2 NVSS J183018-043541 18 30 18.50 -04 35 42.00 10.55 NVSS
3 NVSS J182950-041550 18 29 50.90 -04 15 51.12 10.73 NVSS
4 NVSS J183052-042931 18 30 52.20 -04 29 30.84 11.05 NVSS
5 NVSS J182934-043135 18 29 34.20 -04 31 36.12 11.17 NVSS
6 NVSS J182933-043238 18 29 33.60 -04 32 39.12 11.91 NVSS
7 NVSS J183042-043423 18 30 42.10 -04 34 23.88 11.91 NVSS
8 NVSS J183027-041407 18 30 27.79 -04 14 07.08 11.92 NVSS
9 DA451 18 29 24.00 -04 30 56.88 13.05 DIXON
10 NVSS J183048-043432 18 30 48.70 -04 34 32.16 13.14 NVSS
11 NVSS J183044-043538 18 30 44.81 -04 35 38.04 13.30 NVSS
12 NVSS J182923-043716 18 29 23.90 -04 37 17.04 16.81 NVSS

Penn State University Goddard Space Flight Center Swift