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 J0734.7-1557

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0734.7-1557 Swift-XRT detections in the field for 1FGL J0734.7-1557

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 34 37.65 -15 56 13.15 4.18 (1.3 ± 0.2) x 10-2 102 8.795 8.553

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 07 34 32.42 -15 47 49.80 6.04 (1.5 ± 0.6) x 10-3 14 2.676 2.728
2 07 34 11.53 -15 54 41.43 4.64 (1.9 ± 0.7) x 10-3 36 3.194 2.709
3 07 34 11.91 -15 59 55.95 4.80 (1.7 ± 0.7) x 10-3 31 3.068 2.415
4 07 34 11.56 -15 54 41.41 4.64 (1.4 ± 0.7) x 10-3 36 2.993 2.020
5 07 34 14.83 -16 03 35.77 4.78 (1.4 ± 0.7) x 10-3 23 2.474 2.005

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0734.7-1557 Swift-XRT image with known radio, optical and UV sources for 1FGL J0734.7-1557

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J073441.5-155815 07 34 41.52 -15 58 15.24 1.11 CHANDRA
2 CXOGSG J073440.8-155628 07 34 40.90 -15 56 27.96 1.17 CHANDRA
3 CXOGSG J073449.4-155833 07 34 49.42 -15 58 33.60 1.77 CHANDRA
4 CXOGSG J073437.5-155612 07 34 37.56 -15 56 12.48 1.94 CHANDRA
5 CXOGSG J073447.3-155912 07 34 47.30 -15 59 12.12 2.01 CHANDRA
CXOGSG J073445.7-155919 07 34 45.70 -15 59 19.68 2.02 CHANDRA
6 CXOGSG J073445.0-155952 07 34 45.19 -15 59 52.08 2.54 CHANDRA
7 CXOGSG J073433.2-155858 07 34 33.26 -15 58 58.08 3.07 CHANDRA
8 CXOGSG J073456.7-155826 07 34 56.71 -15 58 26.40 3.22 CHANDRA
9 CXOGSG J073456.9-155607 07 34 56.95 -15 56 07.80 3.31 CHANDRA
10 CXOGSG J073433.7-160010 07 34 33.79 -16 00 10.44 3.76 CHANDRA
11 CXOGSG J073443.5-155333 07 34 43.58 -15 53 33.36 3.79 CHANDRA
12 CXOGSG J073444.2-160112 07 34 44.21 -16 01 12.36 3.86 CHANDRA
13 CXOGSG J073427.7-155715 07 34 27.72 -15 57 15.48 3.94 CHANDRA
CXOGSG J073431.9-160003 07 34 31.94 -16 00 03.60 3.99 CHANDRA
14 CXOGSG J073450.0-155329 07 34 50.50 -15 53 29.40 4.11 CHANDRA
CXOGSG J073445.7-160131 07 34 45.74 -16 01 31.80 4.21 CHANDRA
15 CXOGSG J073429.4-155456 07 34 29.45 -15 54 56.88 4.26 CHANDRA
16 CXOGSG J073435.5-160123 07 34 35.59 -16 01 23.88 4.54 CHANDRA
17 CXOGSG J073453.7-155317 07 34 53.74 -15 53 17.88 4.66 CHANDRA
18 CXOGSG J073428.0-155423 07 34 28.10 -15 54 23.40 4.85 CHANDRA
CXOGSG J073453.8-155248 07 34 53.88 -15 52 48.72 5.10 CHANDRA
19 CXOGSG J073427.3-155348 07 34 27.38 -15 53 48.12 5.36 CHANDRA
20 CXOGSG J073437.8-160236 07 34 37.87 -16 02 36.60 5.48 CHANDRA
21 CXOGSG J073459.8-160132 07 34 59.83 -16 01 32.88 5.65 CHANDRA
22 CXOGSG J073437.1-160438 07 34 37.13 -16 04 38.64 7.49 CHANDRA
23 CXOGSG J073439.3-160456 07 34 39.38 -16 04 56.28 7.68 CHANDRA
24 CXOGSG J073433.9-160527 07 34 33.94 -16 05 27.60 8.48 CHANDRA
25 CXOGSG J073436.7-160600 07 34 36.79 -16 06 00.36 8.84 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J073437-155616 07 34 37.61 -15 56 17.16 1.90 NVSS
2 OI-154 07 34 29.40 -15 49 36.84 8.50 DIXON
3 NVSS J073517-160214 07 35 17.40 -16 02 13.92 9.38 NVSS
4 PSR J0734-1559 07 34 00.00 -15 58 59.88 10.73 ATNFPULSAR
5 NVSS J073526-160101 07 35 26.40 -16 01 00.84 10.80 NVSS
6 OI-155.4 07 35 29.40 -15 53 40.92 11.48 DIXON
7 NVSS J073414-154711 07 34 14.40 -15 47 11.04 12.42 NVSS

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