Asteroseismology of the Multiplanet System K2-93
نویسندگان
چکیده
منابع مشابه
Kepler-47: a transiting circumbinary multiplanet system.
We report the detection of Kepler-47, a system consisting of two planets orbiting around an eclipsing pair of stars. The inner and outer planets have radii 3.0 and 4.6 times that of Earth, respectively. The binary star consists of a Sun-like star and a companion roughly one-third its size, orbiting each other every 7.45 days. With an orbital period of 49.5 days, 18 transits of the inner planet ...
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چکیده ندارد.
15 صفحه اولEleven Multiplanet Systems from K2 Campaigns 1 and 2 and the Masses of Two Hot Super-earths
We present a catalog of 11 multiplanet systems from Campaigns 1 and 2 of the K2 mission. We report the sizes and orbits of 26 planets split between seven two-planet systems and four three-planet systems. These planets stem from a systematic search of the K2 photometry for all dwarf stars observed by K2 in these fields. We precisely characterized the host stars with adaptive optics imaging and a...
متن کاملStellar spin-orbit misalignment in a multiplanet system.
Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red gia...
متن کاملThe Current Status of Asteroseismology
Stellar evolution, a fundamental bedrock of modern astrophysics, is driven by the physical processes in stellar interiors. While we understand these processes in general terms, we lack some important ingredients. Seemingly small uncertainties in the input physics of the models, e.g., the opacities or the amount of mixing and of interior rotation, have large consequences for the evolution of sta...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2019
ISSN: 1538-3881
DOI: 10.3847/1538-3881/ab5280