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 J1527.9-4943

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1527.9-4943 Swift-XRT detections in the field for 4FGL J1527.9-4943

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 27 25.21 -49 47 03.62 6.21 (6 ± 2) x 10-3 20 3.826 3.916
2 15 28 43.02 -49 49 30.13 5.70 (4.8 ± 1.4) x 10-3 19 3.658 3.525

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 27 58.93 -49 52 09.99 6.52 (2.2 ± 1.0) x 10-3 10 2.481 2.096
2 15 27 49.13 -49 30 51.13 6.04 (1.8 ± 1.0) x 10-3 9 2.256 1.852

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1527.9-4943 Swift-XRT image with known radio, optical and UV sources for 4FGL J1527.9-4943


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 SAO 225810 15 28 05.88 -49 48 22.32 5.44 SAO
CD-49 9643 15 28 06.05 -49 48 21.96 5.44 ACRS
PPM 320617 15 28 05.98 -49 48 22.68 5.45 PPM
2 CD-49 9631 15 27 25.49 -49 47 02.40 6.78 ACRS
PPM 320611 15 27 25.46 -49 47 02.76 6.79 PPM
SAO 225799 15 27 25.51 -49 47 03.48 6.79 SAO
3 PGC 3077275 15 27 15.60 -49 37 27.12 9.01 PGC2003
4 TGSSADR J152836.9-493528 15 28 36.91 -49 35 27.96 9.71 GMRTAS150M
MGPS J152837-493527 15 28 37.20 -49 35 26.88 9.74 MGPS2
5 PPM 320627 15 29 03.14 -49 44 37.68 10.44 PPM
SAO 225822 15 29 03.14 -49 44 38.04 10.44 SAO
CD-49 9651 15 29 03.22 -49 44 36.96 10.44 ACRS
6 PGC 3077277 15 27 18.50 -49 52 09.84 11.26 PGC2003

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