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 J1844.8-0957

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1844.8-0957 Swift-XRT detections in the field for 4FGL J1844.8-0957


No detected excesses found.

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1844.8-0957 Swift-XRT image with known radio, optical and UV sources for 4FGL J1844.8-0957


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 J184453-095849 18 44 53.11 -09 58 50.16 1.90 NVSS
2 NVSS J184441-095451 18 44 41.40 -09 54 51.12 3.02 NVSS
3 NVSS J184457-100146 18 44 57.19 -10 01 45.84 4.98 NVSS
4 TGSSADR J184511.2-095844 18 45 11.21 -09 58 44.04 5.70 GMRTAS150M
5 NVSS J184511-095923 18 45 11.71 -09 59 22.92 6.03 NVSS
6 NVSS J184444-100409 18 44 44.21 -10 04 09.84 7.01 NVSS
7 NVSS J184514-100035 18 45 13.99 -10 00 34.92 7.04 NVSS
8 NVSS J184517-095834 18 45 17.59 -09 58 33.96 7.19 NVSS
TGSSADR J184517.6-095832 18 45 17.71 -09 58 32.16 7.21 GMRTAS150M
9 PPM 707261 18 44 34.99 -09 48 22.68 9.50 PPM
10 NVSS J184520-100319 18 45 20.40 -10 03 19.08 9.86 NVSS
11 GM SCT 18 45 30.43 -09 53 48.12 10.80 WOODEBCAT
AC SCT 18 45 30.43 -09 53 48.12 10.80 WOODEBCAT
12 NVSS J184528-095043 18 45 28.51 -09 50 43.08 11.75 NVSS
13 PPM 719666 18 45 23.09 -10 06 34.92 12.58 PPM
14 NVSS J184511-094553 18 45 11.71 -09 45 54.00 12.67 NVSS

Penn State University Goddard Space Flight Center Swift