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.

1FGL J0001.9-4158

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0001.9-4158 Swift-XRT detections in the field for 1FGL J0001.9-4158

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 01 32.83 -41 55 22.96 3.72 (7.2 ± 0.4) x 10-2 383 18.570 18.780
2 00 01 07.27 -41 53 10.92 5.44 (3.2 ± 0.9) x 10-3 19 3.651 3.499

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 00 01 52.34 -42 05 13.60 6.41 (2.0 ± 0.7) x 10-3 13 2.788 2.827
2 00 01 28.29 -42 02 59.66 6.41 (1.7 ± 0.7) x 10-3 12 2.660 2.639
3 00 02 11.11 -41 55 20.36 6.52 (1.6 ± 0.7) x 10-3 12 2.454 2.282

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0001.9-4158 Swift-XRT image with known radio, optical and UV sources for 1FGL J0001.9-4158

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J000135.5-415519 00 01 35.50 -41 55 18.84 5.20 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J000133-415524 00 01 33.00 -41 55 23.88 5.48 SUMSS
2 PGC 124324 00 02 36.50 -41 58 10.92 7.60 PGC2003
3 PGC 126657 00 02 33.60 -42 01 54.12 7.64 PGC2003
4 PGC 124315 00 01 35.30 -41 50 21.84 9.34 PGC2003
5 PGC 571716 00 02 02.71 -41 48 52.92 10.10 PGC2003
6 PPM 304479 00 02 05.35 -42 08 59.64 10.25 PPM
7 HD 224842 00 01 07.27 -41 53 15.72 10.64 HIC
PPM 304463 00 01 07.25 -41 53 15.36 10.65 PPM
CD-4216560 00 01 07.25 -41 53 15.36 10.65 ACRS
HIP 90 00 01 07.20 -41 53 14.64 10.66 HIPPARCOS
SAO 231896 00 01 07.10 -41 53 15.72 10.67 SAO
8 PGC 569409 00 02 53.21 -42 00 33.84 10.80 PGC2003
9 PGC 571030 00 02 42.10 -41 52 19.92 10.83 PGC2003
10 PGC 124316 00 01 40.39 -41 48 10.08 11.11 PGC2003
11 PGC 124314 00 01 31.99 -41 48 19.08 11.47 PGC2003
12 PGC 570795 00 00 55.30 -41 53 34.08 12.45 PGC2003
13 PGC 567526 00 02 34.80 -42 09 39.96 12.98 PGC2003
14 PGC 572023 00 02 34.51 -41 47 22.92 13.58 PGC2003
15 PPM 752590 00 00 52.78 -42 07 56.28 14.79 PPM
16 PGC 572050 00 01 01.61 -41 47 15.00 15.41 PGC2003

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