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 J0844.9-4117

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0844.9-4117 Swift-XRT detections in the field for 4FGL J0844.9-4117

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 44 39.86 -41 16 42.27 4.39 (8 ± 2) x 10-3 60 6.390 5.290
2 08 44 09.14 -41 19 14.49 5.40 (4.5 ± 1.1) x 10-3 25 4.220 4.114
3 08 44 19.29 -41 25 27.19 5.49 (4.1 ± 1.0) x 10-3 22 3.927 3.974
4 08 44 08.85 -41 25 48.34 7.27 (2.8 ± 0.9) x 10-3 12 2.875 3.212

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 08 44 40.18 -41 16 42.93 4.35 (4.1 ± 1.3) x 10-3 63 4.002 3.227
2 08 45 45.85 -41 10 40.95 7.71 (1.9 ± 0.7) x 10-3 10 2.868 2.904
3 08 44 51.24 -41 14 45.26 5.59 (2.7 ± 1.0) x 10-3 21 2.667 2.706
4 08 44 54.20 -41 17 32.46 6.52 (2.1 ± 0.9) x 10-3 17 2.660 2.348
5 08 44 39.93 -41 16 41.96 4.38 (1.6 ± 0.9) x 10-3 59 2.445 1.773
6 08 45 00.95 -41 14 56.84 5.44 (1.0 ± 0.6) x 10-3 29 2.420 1.636

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0844.9-4117 Swift-XRT image with known radio, optical and UV sources for 4FGL J0844.9-4117

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1BMW 084503.5-411832 08 45 03.55 -41 18 32.04 1.10 ROSAT
2 1RXH J084507.2-411631 08 45 07.27 -41 16 31.44 1.94 ROSAT
1BMW 084507.3-411630 08 45 07.27 -41 16 30.36 1.96 ROSAT
3 1BMW 084460.0-411533 08 44 59.98 -41 15 33.12 2.23 ROSAT
4 1BMW 084512.0-411755 08 45 11.98 -41 17 54.60 2.38 ROSAT
1RXH J084512.0-411757 08 45 12.02 -41 17 57.12 2.39 ROSAT
5 1RXH J084445.4-411729 08 44 45.43 -41 17 29.40 2.63 ROSAT
1BMW 084445.3-411727 08 44 45.29 -41 17 26.88 2.66 ROSAT
6 1BMW 084448.3-411552 08 44 48.31 -41 15 51.84 2.82 ROSAT
7 1BMW 084502.1-411458 08 45 02.11 -41 14 57.84 2.86 ROSAT
8 1RXH J084514.5-411731 08 45 14.52 -41 17 31.56 2.86 ROSAT
1BMW 084514.6-411732 08 45 14.59 -41 17 31.92 2.87 ROSAT
1BMW 084500.1-411446 08 45 00.07 -41 14 46.32 3.00 ROSAT
9 2RXS J084455.8-411437 08 44 55.85 -41 14 37.68 3.21 ROSAT
10 1RXH J084452.7-411444 08 44 52.70 -41 14 44.88 3.28 ROSAT
1BMW 084452.6-411443 08 44 52.56 -41 14 42.36 3.32 ROSAT
1BMW 084454.7-411433 08 44 54.72 -41 14 32.64 3.34 ROSAT
11 1BMW 084442.5-411637 08 44 42.48 -41 16 37.56 3.37 ROSAT
1BMW 084440.3-411640 08 44 40.27 -41 16 40.44 3.75 ROSAT
1RXH J084440.2-411641 08 44 40.25 -41 16 41.16 3.75 ROSAT
12 1BMW 084437.7-411538 08 44 37.68 -41 15 37.80 4.60 ROSAT
13 1BMW 084521.6-411949 08 45 21.65 -41 19 49.44 4.66 ROSAT
14 1BMW 084444.5-412133 08 44 44.54 -41 21 33.48 4.70 ROSAT
1RXH J084521.8-411955 08 45 21.86 -41 19 54.84 4.74 ROSAT
15 1RXH J084502.5-411255 08 45 02.52 -41 12 55.08 4.89 ROSAT
1BMW 084502.4-411255 08 45 02.40 -41 12 55.08 4.89 ROSAT
16 1BMW 084502.5-412310 08 45 02.45 -41 23 09.96 5.43 ROSAT
1RXH J084502.7-412315 08 45 02.71 -41 23 15.36 5.52 ROSAT
17 1RXS J084445.5-411243 08 44 45.50 -41 12 42.84 5.69 ROSAT
18 1BMW 084522.0-411357 08 45 21.96 -41 13 57.36 5.71 ROSAT
1RXH J084522.2-411356 08 45 22.25 -41 13 56.28 5.76 ROSAT
19 1BMW 084503.5-411203 08 45 03.48 -41 12 02.88 5.78 ROSAT
1BMW 084505.3-411205 08 45 05.33 -41 12 05.04 5.80 ROSAT
1RXH J084505.4-411204 08 45 05.47 -41 12 04.68 5.81 ROSAT
20 1BMW 084509.6-411215 08 45 09.58 -41 12 14.40 5.85 ROSAT
1RXH J084509.8-411212 08 45 09.82 -41 12 11.88 5.91 ROSAT
21 1BMW 084431.0-411509 08 44 31.01 -41 15 08.64 5.94 ROSAT
22 1BMW 084517.8-411248 08 45 17.81 -41 12 48.24 6.06 ROSAT
1RXH J084518.0-411247 08 45 18.00 -41 12 47.16 6.09 ROSAT
23 1RXH J084437.7-411308 08 44 37.73 -41 13 08.40 6.16 ROSAT
1BMW 084437.7-411308 08 44 37.70 -41 13 08.04 6.17 ROSAT
24 1BMW 084451.0-412347 08 44 51.00 -41 23 47.04 6.21 ROSAT
1RXH J084450.9-412350 08 44 50.93 -41 23 50.28 6.27 ROSAT
25 1BMW 084452.5-411135 08 44 52.54 -41 11 34.80 6.32 ROSAT
26 1BMW 084452.1-412425 08 44 52.08 -41 24 25.56 6.79 ROSAT
1RXH J084452.5-412431 08 44 52.56 -41 24 30.96 6.86 ROSAT
27 1RXH J084421.4-411551 08 44 21.48 -41 15 51.84 7.37 ROSAT
1BMW 084421.5-411549 08 44 21.50 -41 15 48.60 7.38 ROSAT
28 1BMW 084540.0-411928 08 45 40.01 -41 19 27.84 7.82 ROSAT
1RXH J084540.5-411925 08 45 40.54 -41 19 25.32 7.91 ROSAT
29 1RXS J084413.9-411740 08 44 13.90 -41 17 39.84 8.54 ROSAT
30 1BMW 084411.3-411617 08 44 11.26 -41 16 17.04 9.16 ROSAT
1RXH J084411.0-411622 08 44 11.04 -41 16 22.08 9.19 ROSAT
31 1RXS J084440.9-412652 08 44 40.90 -41 26 52.08 9.73 ROSAT
32 1BMW 084501.8-410749 08 45 01.85 -41 07 49.44 9.96 ROSAT
33 1BMW 084554.3-412059 08 45 54.31 -41 20 58.92 10.81 ROSAT
34 1BMW 084439.0-410738 08 44 39.00 -41 07 38.28 10.84 ROSAT
35 1BMW 084533.8-410828 08 45 33.79 -41 08 27.60 11.35 ROSAT
36 1BMW 084546.1-411035 08 45 46.06 -41 10 34.68 11.35 ROSAT
1RXH J084546.2-411034 08 45 46.20 -41 10 34.68 11.37 ROSAT
1RXH J084533.9-410826 08 45 33.98 -41 08 26.16 11.39 ROSAT
37 1RXH J084437.3-410601 08 44 37.37 -41 06 01.44 12.45 ROSAT
1BMW 084437.1-410601 08 44 37.15 -41 06 01.08 12.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 QORG J084503.6-411837 08 45 03.60 -41 18 37.08 1.16 QORGCAT
2 QORG J084507.1-411629 08 45 07.10 -41 16 28.92 1.94 QORGCAT
3 QORG J084511.9-411755 08 45 11.90 -41 17 54.96 2.36 QORGCAT
4 QORG J084445.4-411727 08 44 45.41 -41 17 26.88 2.64 QORGCAT
QORG J084502.2-411458 08 45 02.21 -41 14 57.84 2.86 QORGCAT
5 QORG J084515.0-411735 08 45 15.00 -41 17 35.16 2.95 QORGCAT
6 QORG J084500.2-411446 08 45 00.19 -41 14 45.96 3.01 QORGCAT
7 TGSSADR J084504.0-411448 08 45 04.10 -41 14 48.12 3.10 GMRTAS150M
8 QORG J084452.6-411443 08 44 52.61 -41 14 43.08 3.31 QORGCAT
9 WDS J08447-4117 AC 08 44 42.00 -41 16 59.88 3.35 WDS
WDS J08447-4117 EF 08 44 42.00 -41 16 59.88 3.35 WDS
WDS J08447-4117 AB 08 44 42.00 -41 16 59.88 3.35 WDS
WDS J08447-4117 AD 08 44 42.00 -41 16 59.88 3.35 WDS
WDS J08447-4117 DE 08 44 42.00 -41 16 59.88 3.35 WDS
QORG J084454.8-411430 08 44 54.79 -41 14 30.12 3.38 QORGCAT
PPM 313510 08 44 40.37 -41 16 38.64 3.74 PPM
HD 74804 08 44 40.37 -41 16 38.28 3.74 HIC
CD-40 4569 08 44 40.34 -41 16 38.28 3.75 ACRS
SAO 220381 08 44 40.34 -41 16 38.28 3.75 SAO
HIP 42908 08 44 40.32 -41 16 37.92 3.75 HIPPARCOS
QORG J084440.3-411638 08 44 40.30 -41 16 37.92 3.76 QORGCAT
10 Collinder 197 08 44 51.00 -41 13 59.88 4.09 OPENCLUST
11 TGSSADR J084455.6-411339 08 44 55.61 -41 13 39.00 4.18 GMRTAS150M
MGPS J084456-411335 08 44 56.11 -41 13 36.12 4.22 MGPS2
12 PCCS2 030 G261.48+00.95 08 44 39.50 -41 15 15.84 4.49 PCCS030GHZ
13 PMN J0845-4113 08 45 11.50 -41 13 49.08 4.57 PMN
PCCS2 044 G261.48+00.95 08 44 39.10 -41 15 10.08 4.60 PCCS044GHZ
14 ESO 084300-4102.5 08 44 50.64 -41 13 26.40 4.63 ESOUPPSALA
15 QORG J084521.6-411952 08 45 21.60 -41 19 51.96 4.67 QORGCAT
16 QORG J084444.4-412133 08 44 44.40 -41 21 33.12 4.71 QORGCAT
17 QORG J084502.8-412313 08 45 02.81 -41 23 12.84 5.48 QORGCAT
18 QORG J084445.5-411242 08 44 45.50 -41 12 42.12 5.70 QORGCAT
19 QORG J084505.2-411204 08 45 05.21 -41 12 03.96 5.81 QORGCAT
20 QORG J084509.6-411212 08 45 09.60 -41 12 11.88 5.90 QORGCAT
21 QORG J084517.8-411246 08 45 17.81 -41 12 46.08 6.09 QORGCAT
22 QORG J084437.6-411307 08 44 37.61 -41 13 06.96 6.20 QORGCAT
23 QORG J084450.9-412348 08 44 50.90 -41 23 48.12 6.23 QORGCAT
24 WDS J08449-4124 08 44 54.00 -41 23 60.00 6.31 WDS
25 DCC261.4+00.9 08 44 29.59 -41 13 55.92 6.78 DIXON
26 HIP 42925 08 44 52.54 -41 24 28.44 6.83 HIPPARCOS
PPM 313514 08 44 52.58 -41 24 29.16 6.83 PPM
HD 74841 08 44 52.58 -41 24 29.16 6.83 HIC
SAO 220384 08 44 52.44 -41 24 28.80 6.84 SAO
QORG J084452.4-412429 08 44 52.39 -41 24 29.16 6.84 QORGCAT
CD-40 4575 08 44 52.61 -41 24 29.52 6.84 ACRS
27 QORG J084537.3-411736 08 45 37.30 -41 17 35.88 7.13 QORGCAT
28 QORG J084421.6-411549 08 44 21.60 -41 15 48.96 7.36 QORGCAT
29 QORG J084540.2-411921 08 45 40.20 -41 19 21.00 7.83 QORGCAT
30 PCCS2 070 G261.44+00.90 08 44 19.39 -41 15 25.92 7.86 PCCS070GHZ
31 PMN J0844-4110 08 44 38.71 -41 10 54.12 7.89 PMN
32 PMN J0845-4125 08 45 09.79 -41 25 30.00 7.97 PMN
SAO 220393 08 45 10.27 -41 25 37.92 8.12 SAO
HIP 42939 08 45 10.32 -41 25 37.92 8.13 HIPPARCOS
PPM 313523 08 45 10.34 -41 25 38.28 8.13 PPM
HD 74883 08 45 10.32 -41 25 38.64 8.14 HIC
CD-40 4582 08 45 10.32 -41 25 39.72 8.15 ACRS
33 PMN J0844-4125b 08 44 51.00 -41 25 48.00 8.18 PMN
34 WDS J08442-4116 08 44 12.00 -41 16 00.12 9.07 WDS
QORG J084411.0-411619 08 44 10.99 -41 16 18.84 9.20 QORGCAT
35 PMN J0844-4125a 08 44 31.20 -41 25 36.84 9.46 PMN
36 PMN J0844-4115 08 44 09.91 -41 15 11.88 9.64 PMN
37 MGPS J084510-410757 08 45 10.90 -41 07 58.08 10.05 MGPS2
TGSSADR J084510.9-410754 08 45 10.90 -41 07 54.12 10.10 GMRTAS150M
38 WRA 268 08 44 24.07 -41 25 49.80 10.43 WACKERLING
39 QORG J084546.0-411035 08 45 46.01 -41 10 35.04 11.34 QORGCAT
40 QORG J084533.7-410826 08 45 33.70 -41 08 26.16 11.36 QORGCAT
41 PMN J0845-4121 08 45 59.59 -41 21 47.88 12.01 PMN
42 QORG J084437.3-410601 08 44 37.30 -41 06 01.08 12.47 QORGCAT
43 TGSSADR J084541.5-412823 08 45 41.50 -41 28 23.16 13.24 GMRTAS150M
MGPS J084541-412824 08 45 41.40 -41 28 24.96 13.25 MGPS2

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