Updated parameters for the transiting exoplanet WASP-3b using RISE, a new fast camera for the Liverpool Telescope

Updated parameters for the transiting exoplanet WASP-3b using RISE, a new fast camera for the Liverpool Telescope
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使用利物浦望远镜的新型快速相机 RISE 更新了凌日系外行星 WASP-3b 的参数

DOI:
10.1051/0004-6361:200811015
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发表时间:
2008
影响因子:
6.5
通讯作者:
Gibson N
Gibson N
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Gibson N

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一些第一批结果是由RISE报告的,RISE是安装在利物浦望远镜上的一种新的快速相机,主要用于获得凌日系外行星的高时间分辨率光变曲线,以便进行凌日计时。提出了WASP-3的完全和部分凌日,并使用马尔可夫链蒙特卡罗分析来更新发现论文中的参数。这导致行星半径为RJ,因此密度为,与以前的结果一致。倾角为度,与先前确定的值一致(但精度有显著提高)。中心凌日与发现论文中给出的星历表一致;然而,使用较长基线计算的新星历表结果为Tc(0)= 2 454 605.55915±0.00023 HJD和P = 1.846835±0.000002天。
Some of the first results are reported from RISE – a new fast camera mounted on the Liverpool Telescope primarily designed to obtain high time-resolution light curves of transiting extrasolar planets for the purpose of transit timing. A full and partial transit of WASP-3 are presented, and a Markov-Chain Monte Carlo analysis is used to update the parameters from the discovery paper. This results in a planetary radius ofRJand therefore a density of , consistent with previous results. The inclination is deg, in agreement (but with a significant improvement in the precision) with the previously determined value. Central transit times are found to be consistent with the ephemeris given in the discovery paper; however, a new ephemeris calculated using the longer baseline results inTc(0) = 2 454 605.55915±0.00023 HJD andP= 1.846835±0.000002 days.
DOI: 10.1086/508155
发表时间: 2006-07
期刊: The Astrophysical Journal
影响因子: --
作者:
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影响因子: 4.8
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