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 J1748.2-1942

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1748.2-1942 Swift-XRT detections in the field for 4FGL J1748.2-1942


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 17 48 33.05 -19 42 15.75 7.27 (1.2 ± 0.4) x 10-2 12 2.845 2.942

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1748.2-1942 Swift-XRT image with known radio, optical and UV sources for 4FGL J1748.2-1942

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J174905.3-195328 17 49 05.33 -19 53 28.32 15.86 CHANDRA
X174905.42-195327.4 17 49 05.42 -19 53 27.24 15.86 CHANDRA
2CXO J174905.2-195329 17 49 05.30 -19 53 29.40 15.86 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 718517 17 48 24.00 -19 38 11.40 4.50 PPM
BD-19 4707 17 48 24.00 -19 38 11.40 4.50 ACRS
2 NVSS J174840-194507 17 48 40.20 -19 45 06.84 6.09 NVSS
TGSSADR J174840.4-194516 17 48 40.51 -19 45 16.92 6.21 GMRTAS150M
3 SAO 160832 17 48 41.62 -19 46 48.00 7.26 SAO
BD-19 4708 17 48 41.69 -19 46 46.56 7.26 ACRS
PPM 233619 17 48 41.69 -19 46 46.56 7.26 PPM
TGSSADR J174853.5-194215 17 48 53.50 -19 42 15.84 8.57 GMRTAS150M
4 NVSS J174853-194209 17 48 53.81 -19 42 10.08 8.65 NVSS
5 NVSS J174831-193336 17 48 31.70 -19 33 37.08 9.42 NVSS
TGSSADR J174831.8-193334 17 48 31.90 -19 33 34.92 9.47 GMRTAS150M
6 NVSS J174737-194615 17 47 37.90 -19 46 14.88 10.00 NVSS
7 NVSS J174901-194518 17 49 01.10 -19 45 18.00 10.74 NVSS
8 NVSS J174738-193500 17 47 38.90 -19 34 59.88 11.64 NVSS
9 NVSS J174802-193043 17 48 02.40 -19 30 42.84 12.18 NVSS
10 NVSS J174852-193246 17 48 52.51 -19 32 47.04 12.73 NVSS
11 NVSS J174726-195107 17 47 26.21 -19 51 07.92 14.84 NVSS

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