Table B.1.
Frequencies of twin kHz QPOs and the best parameters in 4U 1636–53.
Input parameters | The first fitted parameters | The second fitted parameter | Characteristic values | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
fl (Hz) | fu (Hz) | τ | L (km) | kTe (keV) | kTb (keV) | 𝒳2/d.o.f. | L2 (km) | 𝒳2/d.o.f. | η |
![]() |
![]() |
558.15 ± 6.92 |
![]() |
8.4 ± 0.5 | 9.1 ± 2.2 | 3.6 ± 0.3 | 0.1966 ± 0.0002 | 36 / 44 | 9.08 ± 0.01 | 47 / 47 | 1.0 | 9.69 | 16.20 |
574.42 ± 5.43 |
![]() |
9.4 ± 0.1 | 3.7 ± 0.1 | 3.16 ± 0.01 | 0.2062 ± 0.0001 | 38 / 44 | 3.670 ± 0.002 | 47 / 47 | 0.0 | 4.05 | 13.70 |
575.87 ± 2.74 | 909.49 ± 3.83 | 8.9 ± 0.2 | 12.0 ± 0.4 | 3.33 ± 0.07 | 0.19971 ± 0.00004 | 25 / 44 | 11.880 ± 0.009 | 47 / 47 | 1.0 | 12.86 | 27.65 |
590.01 ± 6.37 | 867.78 ± 3.78 | 8.2 ± 0.2 | 9.8 ± 1.8 | 3.63 ± 0.07 | 0.1966 ± 0.0001 | 20 / 44 | 9.722 ± 0.007 | 49 / 47 | 1.0 | 14.73 | 25.04 |
612.14 ± 5.04 | 906.11 ± 4.47 | 8.3 ± 0.4 | 5.7 ± 0.3 | 3.46 ± 0.2 | 0.1997 ± 0.0001 | 24 / 45 | 5.63 ± 0.00 | 49 / 48 | 1.0 | 12.77 | 15.01 |
637.41 ± 4.86 |
![]() |
10.1 ± 0.1 | 4.0 ± 0.9 | 2.89 ± 0.07 | 0.1988 ± 0.0001 | 14 / 44 | 3.953 ± 0.002 | 48 / 47 | 0.5 | 11.94 | 13.62 |
640.23 ± 2.72 | 964.57 ± 5.50 | 10.0 ± 0.4 | 6.0 ± 0.1 | 2.9 ± 0.1 | 0.20089 ± 0.00004 | 77 / 44 | 5.914 ± 0.005 | 47 / 47 | 0.5 | 12.96 | 14.91 |
649.55 ± 4.28 | 936.25 ± 10.28 | 8.3 ± 0.6 | 2.6 ± 0.3 | 3.5 ± 0.3 | 0.1978 ± 0.0004 | 36 / 44 | 2.5603 ± 0.0001 | 56 / 47 | 0.4 | 13.08 | 13.62 |
650.68 ± 4.23 |
![]() |
8.6 ± 0.5 | 6.9 ± 0.5 | 3.3 ± 0.2 | 0.2078 ± 0.0003 | 32 / 44 | 6.841 ± 0.007 | 46 / 47 | 0.1 | 10.14 | 12.14 |
![]() |
984.64 ± 5.69 | 8.4 ± 0.7 | 7.9 ± 0.1 | 3.5 ± 0.4 | 0.2013 ± 0.0002 | 30 / 45 | 7.694 ± 0.018 | 49 / 48 | 0.0 | 16.19 | 22.56 |
659.10 ± 2.12 | 975.20 ± 4.12 | 9.6 ± 0.8 | 5.4 ± 0.4 | 2.9 ± 0.3 | 0.1989 ± 0.0002 | 26 / 44 | 5.385 ± 0.001 | 48 / 47 | 0.6 | 17.03 | 13.25 |
675.51 ± 1.42 | 970.16 ± 4.83 | 9.2 ± 0.8 | 6.4 ± 0.9 | 3.1 ± 0.3 | 0.2094 ± 0.0001 | 6 / 45 | 6.392 ± 0.003 | 49 / 48 | 0.0 | 10.88 | 12.45 |
689.14 ± 42.36 | 1022.49 ± 42.36 | 9.2 ± 0.9 | 2.8 ± 0.6 | 3.1 ± 0.3 | 0.2000 ± 0.0001 | 23 / 44 | 2.751 ± 0.003 | 50 / 47 | 0.1 | 14.60 | 11.47 |
696.99 ± 1.01 | 1007.83 ± 9.49 | 8.6 ± 0.3 | 4.8 ± 0.8 | 3.3 ± 0.1 | 0.1998 ± 0.0001 | 30 / 44 | 4.7770 ± 0.0003 | 48 / 47 | 0.5 | 19.93 | 12.71 |
700.10 ± 2.72 | 1005.88 ± 7.68 | 9.5 ± 0.7 | 8.4 ± 0.7 | 3.0 ± 0.3 | 0.2003 ± 0.0002 | 15 / 44 | 8.332 ± 0.006 | 47 / 47 | 1.0 | 24.10 | 14.50 |
![]() |
988.76 ± 12.25 | 9.5 ± 0.2 | 5.3 ± 0.6 | 2.99 ± 0.07 | 0.19973 ± 0.00006 | 13 / 44 | 5.256 ± 0.003 | 49 / 47 | 0.4 | 20.84 | 14.45 |
770.02 ± 42.55 | 1092.21 ± 42.55 | 9.7 ± 0.4 | 5.0 ± 0.9 | 2.9 ± 0.1 | 0.2039 ± 0.0003 | 24 / 44 | 4.9465 ± 0.0003 | 48 / 47 | 0.2 | 18.86 | 10.09 |
772.80 ± 1.33 | 1070.88 ± 7.04 | 9.9 ± 0.4 | 8.2 ± 0.3 | 2.9 ± 0.1 | 0.2052 ± 0.0001 | 36 / 44 | 8.115 ± 0.005 | 46 / 47 | 0.1 | 21.47 | 13.77 |
877.07 ± 29.23 | 1126.12 ± 29.23 | 10.0 ± 0.2 | 7.5 ± 0.1 | 2.75 ± 0.06 | 0.2137 ± 0.0002 | 51 / 48 | 7.473 ± 0.004 | 52 / 51 | 0.0 | 12.04 | 7.86 |
883.19 ± 3.67 | 1187.03 ± 6.72 | 9.2 ± 0.3 | 3.9 ± 0.2 | 3.0 ± 0.1 | 0.2106 ± 0.0001 | 59 / 48 | 3.871 ± 0.001 | 51 / 51 | 0.0 | 9.53 | 4.88 |
883.44 ± 1.10 | 1132.73 ± 6.47 | 10.2 ± 0.6 | 6.4 ± 0.4 | 2.7 ± 0.1 | 0.2130 ± 0.0005 | 21 / 44 | 6.351 ± 0.003 | 48 / 47 | 0.0 | 10.79 | 7.05 |
913.75 ± 40.91 | 1161.56 ± 40.91 | 9.2 ± 0.1 | 8.7 ± 0.6 | 2.94 ± 0.07 | 0.2133 ± 0.0003 | 36 / 48 | 8.644 ± 0.005 | 50 / 51 | 0.0 | 12.12 | 7.97 |
913.98 ± 2.97 | 1223.44 ± 6.32 | 9.4 ± 0.1 | 4.8 ± 1.5 | 2.98 ± 0.03 | 0.20961 ± 0.00003 | 43 / 48 | 4.713 ± 0.001 | 51 / 51 | 0.0 | 9.07 | 4.40 |
![]() |
1164.83 ± 5.82 | 8.9 ± 0.4 | 5.3 ± 0.8 | 3.0 ± 0.1 | 0.2119 ± 0.0001 | 44 / 44 | 5.2900 ± 0.0004 | 48 / 47 | 0.0 | 8.93 | 6.17 |
923.31 ± 3.91 |
![]() |
10.3 ± 0.3 | 6.9 ± 0.4 | 2.64 ± 0.05 | 0.2154 ± 0.0002 | 48 / 48 | 6.869 ± 0.003 | 52 / 51 | 0.0 | 8.46 | 4.90 |
![]() |
1191.40 ± 2.57 | 9.6 ± 0.3 | 6.3 ± 0.6 | 2.82 ± 0.09 | 0.2122 ± 0.0002 | 14 / 48 | 6.219 ± 0.002 | 52 / 51 | 0.0 | 9.20 | 5.57 |
![]() |
1191.81 ± 5.26 | 9.96 ± 0.06 | 7.1 ± 0.1 | 2.73 ± 0.01 | 0.21029 ± 0.00006 | 32 / 44 | 7.0306 ± 0.0001 | 48 / 47 | 0.0 | 10.77 | 6.88 |
![]() |
![]() |
9.1 ± 0.2 | 9.9 ± 0.7 | 2.91 ± 0.07 | 0.2091 ± 0.0002 | 20 / 44 | 9.8445 ± 0.0001 | 48 / 47 | 0.1 | 15.10 | 10.11 |
Notes. This table lists the frequencies of 28 twin kHz QPOs and the best parameters in 4U 1636–53 for every group of twin QPOs. The first two parameters (fl and fu) in the first column are from the observation and the values of other parameters are obtained from this model.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.