A planet in a polar orbit of 1.4 solar-mass star

A planet in a polar orbit of 1.4 solar-mass star
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位于 1 4 个太阳质量恒星极地轨道上的行星

DOI:
10.1051/epjconf/201510102001
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Rodler
Rodler
中科院分区:
--
文献类型:
--
作者:
Guenther;Cusano;Gandolfi;Grziwa;Tal-Or;Sebastian;Rodler

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虽然已经发现了一千多颗凌日系外行星,但只有很少一部分围绕着比太阳质量更大的恒星运行。这类行星的发现很有趣,因为它们形成于更大质量的圆盘中,但比太阳系恒星的寿命更短。对质量比太阳大的行星的研究告诉我们原行星盘的性质如何影响行星的形成。使这些行星有趣的另一个方面是它们保持了原来的轨道倾角。通过研究它们,我们可以发现行星的轨道轴是否最初与恒星的旋转轴对齐。在这里,我们报告发现一颗行星的1.4太阳质量的星星与5.6天的周期在极地轨道由CoRoT。因此,这颗新行星是少数几个已知的围绕质量比太阳大得多的星星运行的近距离行星之一。
Although more than a thousand transiting extrasolar planets have been discovered, only very few of them orbit stars that are more massive than the Sun. The discovery of such planets is interesting, because they have formed in disks that are more massive but had a shorter life time than those of solar-like stars. Studies of planets more massive than the Sun thus tell us how the properties of the proto-planetary disks effect the formation of planets. Another aspect that makes these planets interesting is that they have kept their original orbital inclinations. By studying them we can thus find out whether the orbital axes planets are initially aligned to the stars rotational axes, or not. Here we report on the discovery of a planet of a 1.4 solar-mass star with a period of 5.6 days in a polar orbit made by CoRoT. This new planet thus is one of the few known close-in planets orbiting a star that is substantially more massive than the Sun.
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