Constraints on kinematic models from the latest observational data
Constraints on kinematic models from the latest observational data
复制标题
最新观测数据对运动学模型的约束
DOI:
10.1016/j.physletb.2011.04.022
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发表时间:
2011-05
影响因子:
4.4
通讯作者:
Liu Molin
中科院分区:
文献类型:
--
作者:
Lu Jianbo;Xu Lixin;Liu Molin
Kinematical models are constrained by the latest observational data from geometry-distance measurements, which include 557 type Ia supernovae (SNIa) Union2 data and 15 observational Hubble data. Considering two parameterized deceleration parameter, the values of current deceleration parameter q 0, jerk parameter j 0 and transition redshift z T, are obtained. Furthermore, we show the departures for two parameterized kinematical models from ΛCDM model according to the evolutions of jerk parameter j (z). Also, it is shown that the constraint on jerk parameter j (z) is weak by the current geometrical observed data.
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影响因子:
5
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通讯作者:
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DOI:
10.1046/j.1365-8711.2003.06508.x
发表时间:
2002-07
影响因子:
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影响因子:
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