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 J0903.5+4057

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0903.5+4057 Swift-XRT detections in the field for 4FGL J0903.5+4057

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 03 14.67 +40 56 00.43 3.69 (2.57 ± 0.13) x 10-2 448 19.250 19.820
2 09 03 20.92 +41 04 48.99 3.85 (1.22 ± 0.09) x 10-2 222 13.300 13.860
3 09 03 42.97 +40 55 02.03 4.19 (3.6 ± 0.5) x 10-3 86 7.604 6.863
4 09 02 58.58 +41 03 45.12 4.54 (2.4 ± 0.4) x 10-3 47 5.867 5.598
5 09 04 09.48 +40 58 54.11 4.97 (1.6 ± 0.4) x 10-3 30 4.516 4.477
6 09 03 35.35 +41 03 14.36 4.86 (1.2 ± 0.3) x 10-3 31 3.752 3.642

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 09 03 31.98 +41 09 01.95 5.49 (7 ± 3) x 10-4 16 2.686 2.886
2 09 03 03.61 +40 50 47.38 4.97 (8 ± 3) x 10-4 27 3.300 2.742
3 09 03 29.97 +41 05 57.15 5.08 (8 ± 3) x 10-4 18 2.701 2.624
4 09 03 29.12 +40 48 38.46 5.35 (6 ± 2) x 10-4 15 2.503 2.593
5 09 02 29.58 +40 52 17.14 5.14 (7 ± 3) x 10-4 16 2.484 2.582
6 09 03 02.60 +41 07 08.13 4.74 (7 ± 3) x 10-4 17 3.065 2.515
7 09 03 50.40 +40 48 55.30 5.35 (6 ± 2) x 10-4 21 2.453 2.461
8 09 03 43.04 +40 55 01.68 4.19 (8 ± 3) x 10-4 84 2.900 2.386

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0903.5+4057 Swift-XRT image with known radio, optical and UV sources for 4FGL J0903.5+4057

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
[YMV2007] 193061 09 03 15.74 +40 55 58.80 4.18 ROSAT
1RXS J090315.3+405609 09 03 15.31 +40 56 08.88 4.19 ROSAT
1RXS J090315.3+405609 09 03 15.31 +40 56 08.88 4.19 ROSAT
1RXS J090315.3+405609 09 03 15.31 +40 56 08.88 4.19 ROSAT
FIRST J090 09 03 15.31 +40 56 08.88 4.19 ROSAT
2RXS J090315.2+405609 09 03 15.24 +40 56 09.96 4.20 ROSAT
2RXS J090315.2+405609 09 03 15.24 +40 56 09.96 4.20 ROSAT
1RXS J090315.3+405609 09 03 14.71 +40 56 00.96 4.35
1RXS J090315.3+405609 09 03 14.69 +40 56 00.96 4.35 ROSAT
RX J0903.3+4056 09 03 14.71 +40 55 59.88 4.35 ROSAT
[MML2015] 5BZG J0903+4055 09 03 14.71 +40 55 59.88 4.35
SDSS J090314.70+405559.8 09 03 14.71 +40 55 59.88 4.35 ROSAT
ROXASDC J090314.6+405559.8 09 03 14.59 +40 55 59.88 4.37 ROSAT
1 XMMSL2 J090314.4+405557 09 03 14.40 +40 55 56.64 4.43 XMM-NEWTON
XMMSL2 J090314.4+405557 09 03 14.40 +40 55 56.64 4.43 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 2173665 09 03 45.50 +40 57 55.08 1.83 PGC2003
FIRST J090338.8+405516 09 03 38.90 +40 55 17.04 2.51 FIRST
2 NVSS J090339+405518 09 03 39.79 +40 55 18.12 2.53 NVSS
3 NVSS J090331+405447 09 03 31.61 +40 54 47.16 3.04 NVSS
FIRST J090331.6+405445 09 03 31.61 +40 54 45.00 3.08 FIRST
FIRST J090346.7+405452 09 03 46.80 +40 54 52.92 3.52 FIRST
4 NVSS J090346+405452 09 03 46.70 +40 54 51.84 3.52 NVSS
[ZEH2003] RX J0903.2+4056 3 09 03 15.00 +40 56 09.96 4.24 HRASSOPTID
QORG J090314.8+405613 09 03 14.81 +40 56 12.84 4.25 QORGCAT
WN 0900.0+4107 09 03 14.90 +40 56 03.84 4.29 WENSS
TGSSADR J090314.7+405600 09 03 14.81 +40 56 00.96 4.33 GMRTAS150M
[ZEH2003] RX J0903.2+4056 2 09 03 14.90 +40 55 57.00 4.34 HRASSOPTID
1RXS J090315.3+405609 09 03 14.71 +40 56 00.96 4.35 XRAYSELBLL
5 NVSS J090314+405601 09 03 14.71 +40 56 00.96 4.35 NVSS
FIRST J090314.7+405559 09 03 14.71 +40 55 59.88 4.35 FIRST
FIRST J09032+4055 09 03 14.71 +40 55 59.88 4.35 VERONCAT
PGC 2173127 09 03 14.71 +40 55 59.88 4.35 PGC2003
[MML2015] 5BZG J0903+4055 09 03 14.71 +40 55 59.88 4.35 ROMABZCAT
ROXASDC J090314.6+405559.8 09 03 14.59 +40 55 59.88 4.37 ROXA
QORG J090314.6+405559 09 03 14.59 +40 55 59.16 4.38 QORGCAT
[ZEH2003] RX J0903.2+4056 1 09 03 13.01 +40 56 09.96 4.59 HRASSOPTID
6 GB6 J0903+4055 09 03 15.60 +40 55 10.92 4.59 GB6
7 SAO 42664 09 03 39.36 +41 02 33.00 4.87 SAO
BD+41 1907 09 03 39.24 +41 02 33.36 4.87 ACRS
PPM 50988 09 03 39.29 +41 02 33.72 4.88 PPM
8 FIRST J090405.7+405904 09 04 05.81 +40 59 03.84 5.80 FIRST
9 PGC 2173330 09 04 07.30 +40 56 42.00 6.03 PGC2003
10 NVSS J090409+405851 09 04 09.50 +40 58 50.88 6.44 NVSS
FIRST J090409.4+405855 09 04 09.41 +40 58 55.92 6.45 FIRST
WN 0900.9+4111 09 04 10.30 +40 59 03.84 6.64 WENSS
11 FIRST J090412.0+405839 09 04 12.00 +40 58 40.08 6.89 FIRST
12 SAO 42665 09 03 42.38 +41 05 12.12 7.58 SAO
BD+41 1908 09 03 42.34 +41 05 12.84 7.59 ACRS
PPM 50990 09 03 42.34 +41 05 13.20 7.59 PPM
13 SDSS J09033+4104 09 03 20.90 +41 04 49.08 7.63 VERONCAT
PGC 2175377 09 03 20.81 +41 04 49.08 7.64 PGC2003
14 FIRST J090404.5+410308 09 04 04.51 +41 03 09.00 7.66 FIRST
15 FIRST J090300.6+405209 09 03 00.60 +40 52 09.12 8.68 FIRST
16 FIRST J090254.1+410124 09 02 54.10 +41 01 24.96 8.70 FIRST
17 WD 0900+413 09 03 33.77 +41 06 47.52 9.07 MCKSION
18 FIRST J090252.9+405329 09 02 52.90 +40 53 29.04 9.15 FIRST
19 SDSS J09029+4103 09 02 58.39 +41 03 48.96 9.33 VERONCAT
QORG J090420.0+405144 09 04 19.99 +40 51 43.92 10.27 QORGCAT
20 FIRST J090419.9+405143 09 04 19.99 +40 51 42.84 10.28 FIRST
21 FIRST J090245.5+410253 09 02 45.60 +41 02 53.88 10.81 FIRST
QORG J090418.2+404943 09 04 18.19 +40 49 42.96 11.32 QORGCAT
22 FIRST J090237.6+410027 09 02 37.61 +41 00 27.00 11.33 FIRST
FIRST J090418.6+404939 09 04 18.60 +40 49 40.08 11.41 FIRST
23 WD 0900+410 09 04 10.20 +40 48 15.48 11.48 MCKSION
24 NVSS J090419+404932 09 04 19.51 +40 49 32.88 11.62 NVSS
25 FIRST J090236.3+405405 09 02 36.31 +40 54 05.04 11.82 FIRST
26 Unknown 09 04 33.19 +40 52 50.52 11.88 NLTT
SDSS J09028+4049 09 02 48.19 +40 49 13.08 12.39 VERONCAT
QORG J090248.2+404913 09 02 48.19 +40 49 13.08 12.39 QORGCAT
FIRST J090248.1+404912 09 02 48.19 +40 49 13.08 12.40 FIRST
27 NVSS J090248+404905 09 02 48.41 +40 49 05.16 12.45 NVSS
GB6 J0904+4049 09 04 25.51 +40 49 27.84 12.50 GB6
0901+4101 09 04 27.19 +40 49 19.92 12.84 NORTH6CM
WN 0901.2+4101 09 04 26.59 +40 49 09.12 12.86 WENSS
QORG J090426.5+404907 09 04 26.50 +40 49 06.96 12.87 QORGCAT
FIRST J090426.5+404908 09 04 26.59 +40 49 08.04 12.87 FIRST
28 NVSS J090426+404908 09 04 26.59 +40 49 08.04 12.88 NVSS
TGSSADR J090426.8+404908 09 04 26.81 +40 49 09.12 12.90 GMRTAS150M
29 FIRST J090435.2+405102 09 04 35.30 +40 51 02.16 13.07 FIRST
30 NVSS J090417+410816 09 04 17.50 +41 08 16.08 13.15 NVSS
FIRST J090417.7+410814 09 04 17.81 +41 08 13.92 13.15 FIRST
31 PGC 2170926 09 02 48.10 +40 47 12.84 13.85 PGC2003
FIRST J090245.8+410925 09 02 45.91 +41 09 24.84 15.02 FIRST
32 NVSS J090245+410925 09 02 45.91 +41 09 25.92 15.02 NVSS
33 FIRST J090433.5+410841 09 04 33.50 +41 08 40.92 15.44 FIRST

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