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 J1825.9-3153

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1825.9-3153 Swift-XRT detections in the field for 4FGL J1825.9-3153

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 25 19.64 -31 54 28.67 3.80 (6.6 ± 0.4) x 10-2 261 15.200 15.210

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 25 03.00 -31 45 34.21 7.09 (2.0 ± 0.8) x 10-3 8 2.427 2.611
2 18 25 34.67 -31 46 08.62 5.76 (1.7 ± 0.8) x 10-3 13 2.403 2.142
3 18 25 25.42 -31 54 08.06 4.66 N/A 18 2.889 N/A
4 18 25 19.67 -31 54 29.19 3.80 N/A 261 3.046 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1825.9-3153 Swift-XRT image with known radio, optical and UV sources for 4FGL J1825.9-3153

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J182535.0-314550 18 25 34.99 -31 45 50.40 9.07 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
PGC 206247 18 25 47.81 -31 55 36.84 2.48 PGC2003
1 CGMW 4-834 18 26 07.80 -31 53 30.12 2.60 CGMW
2 NVSS J182546-315534 18 25 46.61 -31 55 33.96 2.62 NVSS
3 PGC 206243 18 25 44.21 -31 55 39.00 3.06 PGC2003
4 HD 319400 18 25 39.10 -31 50 30.12 4.80 HDEC
5 NVSS J182538-314905 18 25 37.99 -31 49 05.16 5.99 NVSS
6 V3310 Sgr 18 25 40.99 -31 48 38.52 6.00 GCVS
MGPS J182537-314841 18 25 37.70 -31 48 42.12 6.35 MGPS2
7 V3331 Sgr 18 26 24.41 -31 55 45.84 6.43 GCVS
8 NVSS J182613-314808 18 26 13.61 -31 48 07.92 6.81 NVSS
9 NVSS J182536-314732 18 25 36.60 -31 47 33.00 7.42 NVSS
10 CGMW 4-815 18 25 44.40 -32 01 14.16 7.83 CGMW
11 V1191SGR 18 26 30.41 -31 56 36.96 7.91 WOODEBCAT
12 NVSS J182521-315802 18 25 21.41 -31 58 01.92 8.42 NVSS
13 CD-3115510 18 25 54.72 -31 45 17.64 8.48 ACRS
SAO 210138 18 25 54.77 -31 45 17.28 8.49 SAO
PPM 297701 18 25 54.74 -31 45 17.28 8.49 PPM
14 CGMW 4-806 18 25 35.90 -32 01 18.12 8.61 CGMW
15 NVSS J182557-314452 18 25 57.70 -31 44 52.08 8.92 NVSS
MGPS J182617-320126 18 26 17.59 -32 01 26.04 8.97 MGPS2
16 NVSS J182617-320125 18 26 17.81 -32 01 26.04 8.98 NVSS
TGSSADR J182618.1-320124 18 26 18.10 -32 01 24.96 9.01 GMRTAS150M
TGSSADR J182558.1-314443 18 25 58.20 -31 44 43.08 9.08 GMRTAS150M
MGPS J182557-314441 18 25 57.50 -31 44 40.92 9.10 MGPS2
17 NVSS J182523-315953 18 25 23.59 -31 59 53.88 9.14 NVSS
18 CGMW 4-825 18 25 54.60 -32 03 33.12 9.78 CGMW
19 V3325 Sgr 18 26 11.06 -31 43 28.56 10.81 GCVS
20 CGMW 4-822 18 25 51.91 -32 04 41.88 10.95 CGMW
21 NVSS J182556-314241 18 25 56.11 -31 42 42.12 11.08 NVSS
22 HD 319401 18 26 20.54 -31 43 57.00 11.17 HDEC
23 CGMW 4-840 18 26 13.20 -32 04 40.08 11.51 CGMW
24 V3344 Sgr 18 26 45.41 -31 48 38.88 11.75 GCVS
25 SAO 210156 18 26 37.73 -31 46 05.16 11.80 SAO
HD 169560 18 26 37.78 -31 46 04.44 11.81 HIC
CD-3115526 18 26 37.75 -31 46 04.08 11.81 ACRS
HIP 90391 18 26 37.78 -31 46 03.36 11.83 HIPPARCOS
PPM 297721 18 26 37.78 -31 46 03.36 11.83 PPM
26 -32:14129 18 25 42.36 -32 05 20.76 11.91 NLTT
HIP 90319 18 25 42.84 -32 05 29.76 12.02 HIPPARCOS
PPM 297695 18 25 42.91 -32 05 31.20 12.05 PPM
CD-3214129 18 25 42.91 -32 05 31.20 12.05 ACRS
27 NVSS J182504-315850 18 25 04.01 -31 58 50.16 12.06 NVSS
HD 169379 18 25 42.96 -32 05 32.64 12.07 HIC
SAO 210131 18 25 42.94 -32 05 32.64 12.07 SAO
28 NSV 10777 18 26 13.80 -31 42 01.08 12.38 GCVSNSVARS
29 PGC 206298 18 26 37.61 -32 02 26.16 12.42 PGC2003
30 HD 319402 18 26 43.54 -31 46 37.92 12.44 HDEC
31 NVSS J182648-314825 18 26 48.50 -31 48 25.92 12.44 NVSS
32 PGC 206207 18 25 09.91 -31 45 48.96 12.56 PGC2003
33 V3336 Sgr 18 26 32.30 -31 42 22.68 13.81 GCVS

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