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 J1049.8+2741

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1049.8+2741 Swift-XRT detections in the field for 4FGL J1049.8+2741

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 49 38.79 +27 42 16.71 4.74 (1.1 ± 0.2) x 10-2 57 6.819 7.156
2 10 50 27.64 +27 48 43.99 6.12 (3.3 ± 0.9) x 10-3 18 3.731 3.686

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 10 49 58.79 +27 49 54.47 7.48 (2.0 ± 0.7) x 10-3 11 2.574 2.900
2 10 50 12.95 +27 50 43.75 6.93 (1.7 ± 0.7) x 10-3 11 2.429 2.524
3 10 49 03.66 +27 45 30.01 5.96 (1.7 ± 0.7) x 10-3 13 2.466 2.245
4 10 50 20.71 +27 50 07.03 6.93 (1.4 ± 0.7) x 10-3 9 2.309 2.053

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1049.8+2741 Swift-XRT image with known radio, optical and UV sources for 4FGL J1049.8+2741

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J104938.7+274205 10 49 38.71 +27 42 05.76 2.65 ROSAT
2RXS J104938.7+274205 10 49 38.71 +27 42 05.76 2.65 ROSAT
1RXS J104938.8+274211 10 49 38.81 +27 42 11.16 2.67 ROSAT
RX J1049.6+2742 10 49 38.83 +27 42 12.96 2.68 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 1814061 10 49 45.91 +27 38 36.96 2.61 PGC2003
2 NVSS J104938+274212 10 49 38.90 +27 42 11.88 2.67 NVSS
FIRST J104938.8+274213 10 49 38.81 +27 42 12.96 2.68 FIRST
QORG J104938.8+274213 10 49 38.81 +27 42 12.96 2.68 QORGCAT
PGC 1815713 10 49 38.81 +27 42 12.96 2.68 PGC2003
TGSSADR J104938.8+274215 10 49 38.90 +27 42 15.84 2.69 GMRTAS150M
3 FIRST J105002.9+274208 10 50 03.00 +27 42 09.00 3.11 FIRST
4 NVSS J104948+273510 10 49 48.41 +27 35 09.96 5.91 NVSS
FIRST J104949.0+273501 10 49 49.10 +27 35 02.04 6.05 FIRST
5 MCG+05-26-017 10 49 20.64 +27 44 06.00 7.12 MCG
6 FIRST J104952.6+274821 10 49 52.70 +27 48 21.96 7.31 FIRST
7 FIRST J104928.1+273526 10 49 28.10 +27 35 26.88 7.40 FIRST
GLEAM J104958+274857 10 49 58.39 +27 48 57.96 8.11 GLEAMEGCAT
FIRST J104958.2+274858 10 49 58.30 +27 48 57.96 8.12 FIRST
8 NVSS J104958+274858 10 49 58.20 +27 48 59.04 8.12 NVSS
TXS 1047+280 10 49 58.30 +27 48 59.04 8.12 TEXAS
TGSSADR J104958.3+274859 10 49 58.30 +27 48 59.04 8.13 GMRTAS150M
VLSSr J104958.0+274901 10 49 58.01 +27 49 01.92 8.16 VLSSR
7C 104713.8+280509 10 49 58.39 +27 49 14.88 8.40 LD7C151MHZ
9 NVSS J104951+274933 10 49 51.70 +27 49 32.88 8.49 NVSS
FIRST J104951.4+274934 10 49 51.41 +27 49 33.96 8.50 FIRST
10 1047+2805 10 49 58.99 +27 49 28.92 8.65 NORTH6CM
1047+2805 10 49 58.99 +27 49 28.92 8.65 NORTH20CM
11 FIRST J105025.0+274502 10 50 25.01 +27 45 02.88 8.76 FIRST
TGSSADR J104919.5+274654 10 49 19.61 +27 46 54.12 8.87 GMRTAS150M
FIRST J104919.5+274653 10 49 19.51 +27 46 54.12 8.87 FIRST
12 NVSS J104919+274653 10 49 19.51 +27 46 54.12 8.88 NVSS
B2.2 1047+28A 10 49 58.39 +27 49 48.00 8.93 DIXON
GLEAM J104919+274703 10 49 19.70 +27 47 03.84 8.96 GLEAMEGCAT
13 NVSS J104920+273446 10 49 20.90 +27 34 46.92 8.99 NVSS
SDSS J10499+2749 10 49 58.10 +27 49 53.04 9.00 VERONCAT
QORG J104920.6+273445 10 49 20.59 +27 34 45.12 9.04 QORGCAT
14 PGC 32381 10 49 12.79 +27 45 06.12 9.12 PGC2003
FIRST J104920.6+273436 10 49 20.71 +27 34 36.84 9.13 FIRST
15 PGC 1813072 10 49 14.11 +27 36 28.08 9.15 PGC2003
16 OL+278 10 49 40.70 +27 50 07.08 9.26 DIXON
17 PGC 1810833 10 49 49.30 +27 31 48.00 9.28 PGC2003
18 FIRST J104946.1+273146 10 49 46.20 +27 31 46.92 9.34 FIRST
19 FIRST J104910.3+273746 10 49 10.30 +27 37 46.92 9.34 FIRST
20 FIRST J105021.8+274714 10 50 21.91 +27 47 13.92 9.40 FIRST
21 PGC 1816779 10 49 10.01 +27 44 26.88 9.43 PGC2003
22 FIRST J104935.1+275017 10 49 35.21 +27 50 17.88 9.77 FIRST
23 10464+2801 10 49 08.71 +27 45 07.20 9.95 ZCAT
ZW 1046+2747 10 49 32.40 +27 31 08.40 10.66 ZWCLUSTERS
FIRST J104934.2+273051 10 49 34.30 +27 30 51.12 10.78 FIRST
24 NVSS J105032+273542 10 50 31.99 +27 35 43.08 10.79 NVSS
25 NVSS J104934+273051 10 49 34.20 +27 30 51.12 10.79 NVSS
FIRST J105032.0+273541 10 50 32.11 +27 35 40.92 10.81 FIRST
GB6 J1049+2730 10 49 34.39 +27 30 46.08 10.86 GB6
QORG J105032.3+273539 10 50 32.30 +27 35 39.12 10.87 QORGCAT
1046+2746 10 49 33.31 +27 30 47.16 10.93 NORTH6CM
26 PGC 1817572 10 50 33.91 +27 46 19.92 11.09 PGC2003
27 PGC 1817948 10 50 32.81 +27 47 09.96 11.30 PGC2003
28 NVSS J104906+273442 10 49 07.01 +27 34 41.88 11.42 NVSS
29 PGC 1815722 10 50 41.30 +27 42 15.12 11.47 PGC2003
FIRST J104906.7+273440 10 49 06.79 +27 34 40.08 11.48 FIRST
30 PGC 1819236 10 49 16.61 +27 50 04.92 11.62 PGC2003
31 SDSS J10503+2750 10 50 20.40 +27 50 34.08 11.66 VERONCAT
32 FIRST J105018.0+275151 10 50 18.10 +27 51 51.12 12.47 FIRST
33 SDSS J10502+2752 10 50 13.99 +27 52 30.00 12.62 VERONCAT
PGC 1817864 10 48 56.59 +27 46 59.88 13.17 PGC2003
34 FIRST J104856.2+274701 10 48 56.21 +27 47 02.04 13.26 FIRST
35 PGC 1819362 10 49 05.90 +27 50 18.96 13.40 PGC2003
36 SDSS J10503+2752 10 50 22.20 +27 52 55.92 13.86 VERONCAT
37 NVSS J105043+275242 10 50 43.01 +27 52 42.96 16.56 NVSS
FIRST J105043.2+275247 10 50 43.30 +27 52 48.00 16.65 FIRST

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