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 J1830.8-3132

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1830.8-3132 Swift-XRT detections in the field for 4FGL J1830.8-3132

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 31 45.83 -31 40 22.34 7.48 (3.8 ± 1.2) x 10-3 11 2.746 3.155

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 31 04.71 -31 26 32.55 5.76 (4.0 ± 1.4) x 10-3 16 3.266 2.976

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1830.8-3132 Swift-XRT image with known radio, optical and UV sources for 4FGL J1830.8-3132


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 CGMW 4-1163 18 30 45.60 -31 34 05.88 2.03 CGMW
PGC 206586 18 30 45.60 -31 34 05.88 2.03 PGC2003
2 CD-3115611 18 30 50.35 -31 28 47.64 3.40 ACRS
PPM 297819 18 30 50.35 -31 28 47.64 3.41 PPM
SAO 210253 18 30 50.40 -31 28 46.20 3.43 SAO
TGSSADR J183038.7-313504 18 30 38.71 -31 35 03.84 3.60 GMRTAS150M
3 NVSS J183038-313506 18 30 38.59 -31 35 06.00 3.64 NVSS
4 V3470 Sgr 18 30 29.50 -31 31 28.92 4.17 GCVS
5 NVSS J183035-312832 18 30 36.00 -31 28 32.16 4.56 NVSS
6 NVSS J183033-313608 18 30 33.60 -31 36 09.00 5.12 NVSS
7 [PME2013] J1830-312A 18 30 49.51 -31 26 57.84 5.23 AT2FGLUS
TGSSADR J183049.4-312657 18 30 49.39 -31 26 57.84 5.23 GMRTAS150M
[SPT2015] ATCA J1830-312A 18 30 49.61 -31 26 56.04 5.25 FER2FUSRID
MGPS J183046-312646 18 30 46.61 -31 26 47.04 5.42 MGPS2
8 NVSS J183046-312646 18 30 46.80 -31 26 45.96 5.43 NVSS
TGSSADR J183046.2-312641 18 30 46.30 -31 26 40.92 5.52 GMRTAS150M
[SPT2015] ATCA J1830-3126 18 30 45.91 -31 26 39.84 5.55 FER2FUSRID
[PME2013] J1830-3126 18 30 46.01 -31 26 39.12 5.56 AT2FGLUS
9 PGC 206584 18 30 43.90 -31 37 45.12 5.66 PGC2003
10 PKS J1830-3126 18 30 52.51 -31 26 27.96 5.77 PKSCAT90
PKS1827-314 18 30 52.30 -31 26 22.92 5.84 DIXON
PMN J1830-3126 18 30 53.50 -31 26 12.12 6.07 PMN
11 V3474 Sgr 18 30 42.00 -31 26 16.08 6.09 GCVS
MGPS J183107-312731 18 31 07.61 -31 27 30.96 6.15 MGPS2
[SPT2015] ATCA J1831-3127 18 31 07.51 -31 27 29.16 6.16 FER2FUSRID
TGSSADR J183107.9-312729 18 31 07.99 -31 27 29.16 6.23 GMRTAS150M
12 NVSS J183107-312720 18 31 07.30 -31 27 20.88 6.24 NVSS
[PME2013] J1831-3127 18 31 07.20 -31 27 19.08 6.26 AT2FGLUS
13 [SPT2015] ATCA J1831-3126 18 31 04.70 -31 26 31.92 6.59 FER2FUSRID
14 NVSS J183109-313731 18 31 09.00 -31 37 31.08 6.86 NVSS
TGSSADR J183027.5-313737 18 30 27.60 -31 37 36.84 7.07 GMRTAS150M
15 NVSS J183102-312544 18 31 02.50 -31 25 45.12 7.07 NVSS
16 NVSS J183027-313738 18 30 27.70 -31 37 39.00 7.07 NVSS
MGPS J183102-312542 18 31 02.30 -31 25 41.88 7.09 MGPS2
[PME2013] J1831-3125 18 31 02.30 -31 25 41.16 7.11 AT2FGLUS
MGPS J183027-313740 18 30 27.60 -31 37 40.08 7.11 MGPS2
TGSSADR J183102.2-312539 18 31 02.30 -31 25 40.08 7.12 GMRTAS150M
17 TXS 1827-314 18 30 42.19 -31 24 42.84 7.61 TEXAS
18 HIP 90725 18 30 36.41 -31 24 51.48 7.79 HIPPARCOS
PPM 297813 18 30 36.41 -31 24 51.48 7.79 PPM
CD-3115604 18 30 36.36 -31 24 51.48 7.79 ACRS
SAO 210246 18 30 36.36 -31 24 51.12 7.80 HIC
SAO 210246 18 30 36.24 -31 24 49.68 7.83 SAO
19 NVSS J183116-312706 18 31 16.80 -31 27 06.84 7.83 NVSS
20 NSV 10919 18 30 47.71 -31 40 05.16 7.90 GCVSNSVARS
21 NVSS J183015-313601 18 30 15.00 -31 36 01.08 8.15 NVSS
22 CGMW 4-1208 18 31 15.60 -31 25 57.00 8.46 CGMW
23 CGMW 4-1112 18 30 09.31 -31 34 49.08 8.81 CGMW
24 CGMW 4-1109 18 30 07.39 -31 33 36.00 8.93 CGMW
25 PGC 206664 18 31 33.50 -31 34 39.00 9.84 PGC2003
26 CGMW 4-1190 18 31 07.61 -31 23 08.16 9.90 CGMW
PGC 206613 18 31 07.61 -31 23 08.16 9.90 PGC2003
27 PPM 297811 18 30 34.68 -31 41 52.08 10.14 PPM
CD-3115602 18 30 34.66 -31 41 52.08 10.14 ACRS
SAO 210244 18 30 34.63 -31 41 52.44 10.15 SAO
28 V3489 Sgr 18 31 11.88 -31 41 14.28 10.30 GCVS
29 SAO 210264 18 31 18.84 -31 40 24.24 10.42 SAO
PPM 297829 18 31 19.10 -31 40 22.80 10.43 PPM
CD-3115623 18 31 19.08 -31 40 23.16 10.44 ACRS
30 V3497 Sgr 18 31 27.38 -31 25 28.92 10.61 GCVS
31 V3499 Sgr 18 31 37.94 -31 35 49.92 11.09 GCVS
MGPS J183041-312111 18 30 41.40 -31 21 11.16 11.11 MGPS2
32 NVSS J183041-312107 18 30 41.59 -31 21 06.84 11.16 NVSS
TGSSADR J183041.5-312105 18 30 41.50 -31 21 06.12 11.20 GMRTAS150M
33 PGC 206649 18 31 27.00 -31 24 20.16 11.31 PGC2003
34 OU-347 18 31 40.39 -31 28 49.08 11.50 DIXON
35 PGC 206662 18 31 32.21 -31 39 09.00 11.57 PGC2003
CGMW 4-1239 18 31 32.21 -31 39 09.00 11.58 CGMW
36 V3442 Sgr 18 29 53.23 -31 29 39.48 12.11 GCVS
37 NVSS J183139-312521 18 31 39.91 -31 25 22.08 12.86 NVSS
38 NVSS J182957-312407 18 29 57.79 -31 24 06.84 13.55 NVSS
39 CGMW 4-1087 18 29 55.10 -31 24 45.00 13.65 CGMW
40 NVSS J183136-312131 18 31 36.60 -31 21 30.96 14.76 NVSS
MGPS J183136-312129 18 31 36.60 -31 21 29.88 14.77 MGPS2
TGSSADR J183136.5-312128 18 31 36.60 -31 21 29.16 14.77 GMRTAS150M

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