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 J1830.0-1515c

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1830.0-1515c Swift-XRT detections in the field for 4FGL J1830.0-1515c

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 30 02.24 -15 19 11.05 5.64 (1.9 ± 0.6) x 10-3 28 3.018 3.095
2 18 29 26.66 -15 17 47.21 5.11 (1.9 ± 0.6) x 10-3 24 3.993 3.078
3 18 30 45.50 -15 15 47.76 5.40 (2.4 ± 0.8) x 10-3 20 3.073 3.043

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 30 27.12 -15 10 17.70 5.76 (1.3 ± 0.5) x 10-3 15 2.617 2.518
2 18 29 27.78 -15 21 32.55 5.82 (1.1 ± 0.5) x 10-3 11 2.453 2.285
3 18 29 41.75 -15 09 40.24 5.17 (1.1 ± 0.5) x 10-3 18 2.493 2.048

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1830.0-1515c Swift-XRT image with known radio, optical and UV sources for 4FGL J1830.0-1515c


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 PMN J1830-1516 18 30 00.10 -15 16 44.04 1.75 PMN
2 NVSS J182955-151625 18 29 55.30 -15 16 26.04 2.55 NVSS
3 NVSS J182959-151824 18 29 59.81 -15 18 24.84 3.21 NVSS
NSV 10899 18 29 58.01 -15 18 38.16 3.60 GCVSNSVARS
4 PMN J1830-1518 18 30 13.70 -15 18 30.96 3.71 PMN
5 NVSS J182940-151746 18 29 40.51 -15 17 45.96 6.35 NVSS
6 WDS J18299-1522 18 29 54.00 -15 22 00.12 7.07 WDS
7 GD 016.9-02.4 18 30 13.01 -15 22 36.12 7.41 DIXON
8 ADG016.9-02.2 18 29 31.80 -15 13 03.00 8.36 DIXON
9 PGCC G16.97-2.44 18 30 39.10 -15 18 00.00 8.61 PLANCKGCC
10 NVSS J182929-151759 18 29 29.71 -15 17 58.92 8.88 NVSS
11 PGCC G17.03-2.17 18 29 45.91 -15 07 50.16 8.91 PLANCKGCC
12 PGCC G16.86-2.16 18 29 24.70 -15 16 17.04 9.75 PLANCKGCC
13 PMN J1830-1524 18 30 25.51 -15 24 38.88 10.43 PMN
14 NVSS J182927-151000 18 29 27.00 -15 10 00.84 10.66 NVSS
15 NVSS J183050-151327 18 30 50.90 -15 13 27.12 11.23 NVSS
16 PMN J1830-1519 18 30 48.19 -15 19 58.08 11.34 PMN
17 WDS J18293-1517 18 29 18.00 -15 16 59.88 11.45 WDS
SAO 161522 18 29 17.83 -15 16 57.36 11.49 SAO
PPM 234602 18 29 17.76 -15 16 57.72 11.50 PPM
BD-15 4982 18 29 17.76 -15 16 57.72 11.50 ACRS
18 NVSS J183053-151741 18 30 53.50 -15 17 40.92 11.89 NVSS
19 V414 Sct 18 30 13.85 -15 27 22.32 12.11 GCVS
20 FSR 0054 18 30 24.00 -15 03 47.16 12.54 OPENCLUST
21 V405 Sct 18 29 22.49 -15 07 59.88 12.69 GCVS
22 NVSS J182931-152528 18 29 31.51 -15 25 28.92 12.88 NVSS
Sa 3-134 18 29 19.75 -15 07 40.44 13.42 PLNEBULAE
23 NVSS J182918-150750 18 29 19.01 -15 07 50.88 13.47 NVSS
24 LDN 379 18 30 51.67 -15 07 51.60 13.58 LDN
TGSSADR J182920.4-150610 18 29 20.50 -15 06 11.16 14.20 GMRTAS150M
25 NVSS J182920-150604 18 29 20.50 -15 06 05.04 14.26 NVSS
26 V507 Sct 18 29 29.71 -15 03 30.60 14.68 GCVS
27 NVSS J182921-150500 18 29 21.50 -15 04 59.88 14.81 NVSS
28 NVSS J183054-150608 18 30 54.31 -15 06 07.92 15.10 NVSS
29 PGCC G16.87-2.56 18 30 54.41 -15 26 36.96 16.31 PLANCKGCC

Penn State University Goddard Space Flight Center Swift