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 J0045.9-2021

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0045.9-2021 Swift-XRT detections in the field for 4FGL J0045.9-2021

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 00 46 43.67 -20 23 19.72 6.04 (8 ± 2) x 10-3 22 4.456 4.400

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 45 27.83 -20 17 00.12 8.27 (2.9 ± 1.2) x 10-3 8 2.468 2.518
2 00 45 52.93 -20 33 24.65 6.93 (2.9 ± 1.2) x 10-3 12 2.549 2.505

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0045.9-2021 Swift-XRT image with known radio, optical and UV sources for 4FGL J0045.9-2021

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J0045.5-2018 00 45 30.70 -20 18 16.92 7.09 ROSAT
2 1WGA J0046.5-2026 00 46 33.50 -20 26 22.92 9.72 ROSAT
2RXP J004635.1-202642 00 46 35.06 -20 26 43.08 10.20 ROSAT
3 1RXS J004636.6-202654 00 46 36.60 -20 26 54.60 10.61 ROSAT
4 1WGA J0046.7-2022 00 46 42.31 -20 22 42.96 10.73 ROSAT
5 1WGA J0045.8-2033 00 45 52.61 -20 33 05.76 11.21 ROSAT
2RXP J004552.6-203320 00 45 52.56 -20 33 20.16 11.45 ROSAT
6 2RXP J004553.3-203345 00 45 53.26 -20 33 45.36 11.86 ROSAT
7 1WGA J0046.7-2025 00 46 46.20 -20 25 33.96 12.17 ROSAT
8 2RXP J004511.0-201516 00 45 10.97 -20 15 17.28 12.60 ROSAT
1WGA J0046.4-2033 00 46 29.40 -20 33 29.88 13.88 ROSAT
9 4XMM J004629.6-203343 00 46 29.66 -20 33 43.56 14.11 XMM-NEWTON
2RXP J004630.1-203340 00 46 30.07 -20 33 40.32 14.12 ROSAT
4XMMs J004629.6-203344 00 46 29.69 -20 33 43.92 14.12 XMM-NEWTON
10 2CXO J004505.9-203239 00 45 05.90 -20 32 39.84 16.02 CHANDRA
11 4XMMs J004642.8-203350 00 46 42.84 -20 33 50.76 16.10 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 842542 00 46 06.10 -20 22 54.12 2.42 PGC2003
WISH B0043.6-2036 00 46 05.59 -20 20 17.16 2.66 WISH
GLEAM J004604-202001 00 46 04.90 -20 20 02.04 2.71 GLEAMEGCAT
2 PGC 842660 00 46 08.40 -20 22 19.92 2.79 PGC2003
3 NVSS J004605-201954 00 46 05.40 -20 19 54.84 2.87 NVSS
QORG J004605.5-201956 00 46 05.50 -20 19 55.92 2.88 QORGCAT
4 PGC 842014 00 46 09.60 -20 25 09.84 4.44 PGC2003
5 PPM 243220 00 46 17.47 -20 20 13.92 5.17 PPM
6 PGC 843235 00 45 34.39 -20 19 49.08 5.62 PGC2003
7 NVSS J004600-201556 00 46 00.60 -20 15 56.16 6.06 NVSS
8 QORG J004530.9-201816 00 45 30.91 -20 18 15.84 7.06 QORGCAT
9 WISH B0043.5-2031 00 45 59.11 -20 14 43.08 7.22 WISH
10 PGC 844911 00 45 47.30 -20 12 24.12 9.77 PGC2003
GLEAM J004517-202551 00 45 17.21 -20 25 50.88 10.05 GLEAMEGCAT
TXS 0042-207 00 45 17.40 -20 26 03.12 10.08 TEXAS
PMN J0045-2025 00 45 16.90 -20 25 46.92 10.08 PMN
VLSSr J004517.3-202603 00 45 17.40 -20 26 03.12 10.09 VLSSR
WISH B0042.8-2042 00 45 17.30 -20 26 02.04 10.10 WISH
TGSSADR J004517.2-202601 00 45 17.30 -20 26 02.04 10.10 GMRTAS150M
11 NVSS J004517-202602 00 45 17.21 -20 26 02.04 10.11 NVSS
MWACS J0045.2-2026 00 45 17.59 -20 26 16.08 10.13 MWACS
12 SPASS J004513-202432 00 45 13.10 -20 24 33.12 10.53 SPASS2P3GH
13 NVSS J004522-202914 00 45 22.20 -20 29 15.00 10.89 NVSS
14 PGC 840808 00 46 27.41 -20 30 21.96 11.10 PGC2003
15 PGC 840323 00 45 36.19 -20 32 13.92 11.37 PGC2003
16 QORG J004646.8-202535 00 46 46.80 -20 25 35.04 12.31 QORGCAT
17 QORG J004511.3-201516 00 45 11.30 -20 15 15.84 12.54 QORGCAT
18 QORG J004629.6-203343 00 46 29.59 -20 33 42.84 14.10 QORGCAT

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