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 J1526.3-4501

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1526.3-4501 Swift-XRT detections in the field for 4FGL J1526.3-4501

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 25 59.95 -45 01 14.50 4.42 (2.8 ± 0.4) x 10-2 64 6.779 6.248
2 15 26 17.17 -45 02 46.96 4.86 (1.0 ± 0.3) x 10-2 44 3.403 3.554

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 26 43.52 -44 57 21.49 4.90 (7 ± 2) x 10-3 31 2.897 2.811
2 15 25 34.07 -44 59 38.13 5.24 (6 ± 2) x 10-3 14 2.928 2.784
3 15 26 55.53 -45 04 33.66 5.08 (6 ± 2) x 10-3 23 3.091 2.512
4 15 27 02.40 -45 01 38.46 4.97 (5 ± 2) x 10-3 29 2.838 2.466
5 15 26 58.01 -45 05 46.48 5.17 (6 ± 2) x 10-3 26 3.028 2.444
6 15 25 31.69 -45 00 25.17 5.11 (5 ± 2) x 10-3 16 2.526 2.348
7 15 25 54.37 -45 02 39.83 5.28 (6 ± 3) x 10-3 28 2.763 2.272
8 15 26 28.18 -45 02 54.01 5.44 (6 ± 3) x 10-3 22 2.673 2.243
9 15 25 51.67 -44 55 49.31 5.89 (4 ± 2) x 10-3 17 2.427 1.993

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1526.3-4501 Swift-XRT image with known radio, optical and UV sources for 4FGL J1526.3-4501

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J152600.9-450113 15 26 00.91 -45 01 13.44 4.03 ROSAT
1RXS J152600.9-450113 15 26 00.91 -45 01 13.08 4.03 ROSAT
2RXS J152600.8-450113 15 26 00.89 -45 01 13.44 4.03 ROSAT
MS Lup 15 26 00.00 -45 01 12.00 4.19 ROSAT
GSC 08295-01530 15 25 59.69 -45 01 15.60 4.24 ROSAT
2 2RXS J152530.9-450310 15 25 30.96 -45 03 10.44 9.37 ROSAT
1RXS J152530.7-450309 15 25 30.70 -45 03 09.00 9.41 ROSAT
3 2RXS J152555.1-451017 15 25 55.15 -45 10 17.40 9.84 ROSAT
1RXS J152555.0-451017 15 25 55.01 -45 10 17.04 9.84 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J152618-450246 15 26 18.50 -45 02 45.96 1.30 MGPS2
2 L 335-1 15 26 07.58 -45 01 59.16 2.81 NLTT
3 MS Lup 15 25 59.64 -45 01 15.96 4.24 GCVS
4 SAO 225776 15 26 22.30 -45 08 54.24 7.09 SAO
NN 15 26 22.32 -45 08 54.96 7.10 ACRS
PPM 320582 15 26 22.30 -45 08 55.32 7.11 PPM
5 TGSSADR J152637.1-445502 15 26 37.10 -44 55 01.92 7.20 GMRTAS150M
MGPS J152636-445500 15 26 37.01 -44 55 00.84 7.22 MGPS2
6 TGSSADR J152533.1-450025 15 25 33.10 -45 00 24.84 9.00 GMRTAS150M
MGPS J152533-450025 15 25 33.10 -45 00 24.84 9.01 MGPS2
7 SAO 225767 15 26 06.62 -44 52 06.24 10.16 SAO
HIP 75557 15 26 06.55 -44 52 05.16 10.18 HIPPARCOS
PPM 320572 15 26 06.55 -44 52 05.16 10.18 PPM
CD-4410111 15 26 06.55 -44 52 05.16 10.18 ACRS
HD 137154 15 26 06.55 -44 52 05.16 10.18 HIC
8 HD 137234 15 26 30.58 -44 50 53.16 11.01 HIC
CD-4410118 15 26 30.55 -44 50 52.80 11.01 ACRS
PPM 320583 15 26 30.58 -44 50 52.44 11.02 PPM
HIP 75585 15 26 30.60 -44 50 52.44 11.02 HIPPARCOS
SAO 225778 15 26 30.65 -44 50 52.08 11.03 SAO
9 PPM 761165 15 27 27.38 -44 55 40.08 12.87 PPM

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