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 J1819.4-1102

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1819.4-1102 Swift-XRT detections in the field for 4FGL J1819.4-1102


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 18 20 22.48 -11 11 11.72 8.27 (1.1 ± 0.5) x 10-2 5 2.104 2.046

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1819.4-1102 Swift-XRT image with known radio, optical and UV sources for 4FGL J1819.4-1102


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 J181909-105920 18 19 09.91 -10 59 21.12 5.12 NVSS
2 NVSS J181947-110019 18 19 47.81 -11 00 19.08 5.36 NVSS
3 PPM 234360 18 19 25.73 -10 56 47.40 5.41 PPM
BD-11 4594 18 19 25.75 -10 56 47.04 5.41 ACRS
SAO 161330 18 19 25.75 -10 56 47.04 5.41 SAO
4 HD 168348 18 19 37.18 -10 56 00.96 6.63 HIC
BD-10 4651 18 19 37.18 -10 56 00.60 6.63 ACRS
PPM 234368 18 19 37.20 -10 56 00.60 6.64 PPM
HIP 89800 18 19 37.18 -10 56 00.24 6.64 HIPPARCOS
SAO 161336 18 19 37.03 -10 55 59.16 6.64 SAO
5 NVSS J181945-105710 18 19 45.50 -10 57 11.16 6.71 NVSS
6 NVSS J181900-110040 18 19 00.41 -11 00 41.04 6.77 NVSS
7 NVSS J181941-105553 18 19 41.50 -10 55 54.12 7.19 NVSS
8 WDS J18189-1101 18 18 54.00 -11 01 00.12 8.25 WDS
SAO 161317 18 18 53.40 -11 00 36.00 8.46 SAO
BD-11 4590 18 18 53.30 -11 00 37.44 8.48 ACRS
PPM 234343 18 18 53.30 -11 00 37.80 8.48 PPM
9 NVSS J181933-105344 18 19 33.70 -10 53 44.16 8.59 NVSS
10 SAO 161342 18 19 47.69 -10 53 25.80 10.09 SAO
BD-10 4652 18 19 47.76 -10 53 25.44 10.10 ACRS
PPM 234373 18 19 47.76 -10 53 25.08 10.10 PPM
11 NVSS J181852-105502 18 18 52.90 -10 55 01.92 11.07 NVSS
TGSSADR J181852.7-105500 18 18 52.80 -10 55 00.12 11.10 GMRTAS150M
12 NVSS J182012-111405 18 20 12.79 -11 14 06.00 16.33 NVSS

Penn State University Goddard Space Flight Center Swift