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 J0448.7-2116

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0448.7-2116 Swift-XRT detections in the field for 4FGL J0448.7-2116

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 04 49 31.68 -21 22 51.24 5.20 (7.4 ± 1.4) x 10-3 34 5.305 5.297
2 04 48 17.51 -21 09 44.38 6.21 (4.4 ± 1.2) x 10-3 18 3.859 3.750
3 04 48 27.47 -21 19 20.45 6.65 (3.7 ± 1.1) x 10-3 17 3.429 3.287

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 04 49 05.78 -21 18 46.30 7.48 (2.4 ± 0.9) x 10-3 12 2.742 2.767
2 04 49 01.97 -21 11 59.35 6.65 (2.1 ± 0.8) x 10-3 12 2.606 2.669
3 04 49 17.20 -21 24 15.57 6.31 (2.1 ± 0.8) x 10-3 11 3.009 2.621

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0448.7-2116 Swift-XRT image with known radio, optical and UV sources for 4FGL J0448.7-2116

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J0448.4-2119 04 48 26.71 -21 19 15.96 5.25 ROSAT
2 1RXS J044818.0-211032 04 48 18.00 -21 10 32.16 9.23 ROSAT
2RXP J044816.9-211016 04 48 16.92 -21 10 16.68 9.59 ROSAT
3 [MML2015] 5BZQ J0448-2109 04 48 17.38 -21 09 44.64 9.89
4 1WGA J0448.2-2110 04 48 14.90 -21 10 18.48 9.92 ROSAT
1WGA J0448.2-2110 04 48 14.90 -21 10 18.12 9.92 ROSAT
5 2RXP J044836.5-210712 04 48 36.48 -21 07 12.00 9.97 ROSAT
6 1WGA J0448.2-2109 04 48 14.30 -21 09 21.96 10.67 ROSAT
7 1WGA J0449.5-2122 04 49 31.99 -21 22 26.04 11.91 ROSAT
8 2RXS J044934.3-212301 04 49 34.34 -21 23 01.32 12.67 ROSAT
2RXS J044934.3-212301 04 49 34.34 -21 23 01.32 12.67 ROSAT
1RXS J044934.5-212303 04 49 34.51 -21 23 03.12 12.71 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 B1 0446-21 04 49 01.70 -21 16 50.16 3.49 DIXON
VLSSr J044859.1-211442 04 48 59.09 -21 14 43.08 3.60 VLSSR
2 NVSS J044835-211420 04 48 35.69 -21 14 20.04 3.62 NVSS
3 NVSS J044858-211429 04 48 58.80 -21 14 29.04 3.69 NVSS
TGSSADR J044858.8-211430 04 48 58.90 -21 14 30.12 3.69 GMRTAS150M
GLEAM J044858-211430 04 48 58.90 -21 14 30.12 3.70 GLEAMEGCAT
WISH B0446.8-2119 04 48 58.99 -21 14 26.16 3.75 WISH
4 MWACS J0449.0-2114 04 49 01.80 -21 14 53.88 4.02 MWACS
MC1 0446-213 04 48 59.71 -21 14 08.88 4.06 DIXON
5 PGC 829895 04 49 07.80 -21 18 47.16 5.26 PGC2003
6 DENISP_G_J0449077-211955 04 49 07.70 -21 19 54.84 5.74 DENISIGAL
PGC 146539 04 49 07.70 -21 19 55.92 5.75 PGC2003
7 PPM 248060 04 48 49.25 -21 22 40.08 5.82 PPM
8 NVSS J044836-211132 04 48 36.10 -21 11 31.92 5.89 NVSS
9 NVSS J044831-212147 04 48 31.70 -21 21 47.16 6.03 NVSS
10 PGC 829659 04 48 22.70 -21 19 49.08 6.33 PGC2003
11 [SHM2012] 251 04 48 40.99 -21 09 50.04 7.16 WMAPITNPTS
12 PGC 828628 04 48 38.11 -21 24 42.84 8.10 PGC2003
13 OF-279 04 49 21.91 -21 16 50.88 8.19 DIXON
14 NVSS J044837-210841 04 48 37.20 -21 08 40.92 8.49 NVSS
15 PGC 830997 04 48 11.30 -21 13 49.08 8.81 PGC2003
16 PGC 829742 04 49 23.90 -21 19 26.04 9.02 PGC2003
SPASS J044818-211004 04 48 18.91 -21 10 04.08 9.40 SPASS2P3GH
17 PPM 724726 04 48 39.79 -21 07 36.84 9.41 PPM
18 QORG J044816.9-211023 04 48 16.90 -21 10 23.16 9.52 QORGCAT
VLSSr J044817.4-210956 04 48 17.40 -21 09 56.88 9.74 VLSSR
PMN J0448-2109 04 48 18.00 -21 09 47.16 9.76 PMN
PKS J0448-2109 04 48 17.50 -21 09 47.88 9.83 PKSCAT90
TGSSADR J044817.4-210946 04 48 17.50 -21 09 46.08 9.85 GMRTAS150M
GLEAM J044817-210944 04 48 17.50 -21 09 45.00 9.87 GLEAMEGCAT
WISH B0446.1-2114 04 48 17.59 -21 09 42.84 9.87 WISH
PKS 0446-212 04 48 17.40 -21 09 45.00 9.88 VERONCAT
19 NVSS J044817-210944 04 48 17.40 -21 09 45.00 9.88 NVSS
TXS 0446-212 04 48 17.30 -21 09 45.00 9.89 TEXAS
CRATES J044818-210947 04 48 17.40 -21 09 45.00 9.89 CRATES
[MML2015] 5BZQ J0448-2109 04 48 17.40 -21 09 45.00 9.89 ROMABZCAT
QORG J044817.4-210944 04 48 17.40 -21 09 43.92 9.90 QORGCAT
AT20G J044817-210944 04 48 17.40 -21 09 43.92 9.90 AT20G
MC1 0446-212 04 48 16.70 -21 09 38.16 10.08 DIXON
PKS 0446-212 04 48 16.01 -21 09 46.08 10.10 DIXON
20 NVSS J044817-212424 04 48 16.99 -21 24 24.12 10.23 NVSS
21 PGC 832566 04 48 30.91 -21 06 29.88 11.02 PGC2003
22 PGC 831906 04 49 22.39 -21 09 37.08 11.03 PGC2003
23 PGC 831933 04 48 09.50 -21 09 30.96 11.39 PGC2003
24 PGC 831942 04 49 25.90 -21 09 29.16 11.74 PGC2003
25 PGC 832069 04 48 09.41 -21 08 51.00 11.85 PGC2003
26 NVSS J044904-210542 04 49 04.39 -21 05 43.08 11.90 NVSS
27 PGC 832633 04 49 15.91 -21 06 11.16 12.67 PGC2003
MWACS J0449.3-2106 04 49 19.30 -21 06 15.12 13.05 MWACS
VLSSr J044918.8-210608 04 49 18.91 -21 06 09.00 13.08 VLSSR
TGSSADR J044918.5-210604 04 49 18.60 -21 06 05.04 13.10 GMRTAS150M
28 NVSS J044918-210603 04 49 18.60 -21 06 02.88 13.11 NVSS
GLEAM J044918-210602 04 49 18.50 -21 06 02.88 13.12 GLEAMEGCAT
TXS 0447-211 04 49 18.60 -21 06 02.88 13.13 TEXAS
WISH B0447.1-2111 04 49 18.60 -21 06 02.16 13.15 WISH
29 NVSS J044755-211117 04 47 55.70 -21 11 17.16 13.15 NVSS
MC1 0447-211 04 49 19.01 -21 06 02.88 13.17 DIXON
30 NVSS J044757-210814 04 47 57.91 -21 08 13.92 14.31 NVSS
31 NVSS J044927-210538 04 49 27.50 -21 05 39.12 14.70 NVSS
32 PPM 724719 04 48 02.40 -21 05 58.56 15.03 PPM

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