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 J1530.0-1522

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1530.0-1522 Swift-XRT detections in the field for 4FGL J1530.0-1522

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 29 57.85 -15 24 46.03 5.89 (3.6 ± 1.1) x 10-3 20 3.446 3.405

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 15 29 32.46 -15 24 27.03 6.41 (2.3 ± 0.8) x 10-3 14 2.738 2.757
2 15 29 59.62 -15 12 30.52 6.12 (1.8 ± 0.8) x 10-3 12 2.258 2.182

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1530.0-1522 Swift-XRT image with known radio, optical and UV sources for 4FGL J1530.0-1522

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J153030.2-151320 15 30 30.19 -15 13 19.92 11.71 ROSAT
2RXS J153030.3-151320 15 30 30.34 -15 13 20.28 11.73 ROSAT
2RXS J153030.3-151320 15 30 30.34 -15 13 20.28 11.73 ROSAT
2 2RXS J152912.7-152624 15 29 12.74 -15 26 24.72 12.09 ROSAT
2RXS J152912.7-152624 15 29 12.74 -15 26 24.72 12.09 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J153005-151845 15 30 05.40 -15 18 46.08 3.99 NVSS
2 NVSS J152953-151837 15 29 52.99 -15 18 37.08 4.31 NVSS
3 NVSS J153000-152726 15 30 00.10 -15 27 27.00 4.89 NVSS
TGSSADR J153022.7-152711 15 30 22.70 -15 27 11.88 7.13 GMRTAS150M
4 NVSS J153022-152715 15 30 22.51 -15 27 15.12 7.14 NVSS
VLSSr J152925.7-152111 15 29 25.70 -15 21 11.88 8.43 VLSSR
TGSSADR J152925.6-152111 15 29 25.70 -15 21 11.16 8.45 GMRTAS150M
5 NVSS J152925-152111 15 29 25.61 -15 21 11.88 8.46 NVSS
GLEAM J152925-152106 15 29 25.70 -15 21 06.84 8.46 GLEAMEGCAT
TXS 1526-151 15 29 25.61 -15 21 10.08 8.46 TEXAS
WISH B1526.6-1510 15 29 25.70 -15 21 06.12 8.47 WISH
SPASS J152923-152105 15 29 23.59 -15 21 05.04 8.96 SPASS2P3GH
6 HIP 75851 15 29 36.79 -15 32 15.00 11.22 HIPPARCOS
PPM 230312 15 29 36.79 -15 32 15.00 11.23 PPM
HD 137974 15 29 36.77 -15 32 15.36 11.23 HIC

Penn State University Goddard Space Flight Center Swift