Výsledky vyhledávání - "Shoya KAMIAKA"

Akademický článek

Meta-analysis of Photometric and Asteroseismic Measurements of Stellar Rotation Periods: The Lomb–Scargle Periodogram, Autocorrelation Function, and Wavelet and Rotational Splitting Analysis for 92 Kepler Asteroseismic Targets

Autor: Yuting Lu, Othman Benomar, Shoya Kamiaka, Yasushi Suto

Publikováno v: The Astrophysical Journal, Vol 941, Iss 2, p 175 (2022)

We perform intensity variability analyses (photometric analyses: the Lomb–Scargle periodogram, autocorrelation, and wavelet) and asteroseismic analysis of 92 Kepler solar-like main-sequence stars to understand the reliability of the measured stella

Externí odkaz: https://doaj.org/article/becac4344bf34dac8d25b9adb9306ecc

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Reliability of stellar inclination estimated from asteroseismology: analytical criteria, mock simulations and Kepler data analysis

Autor: Shoya Kamiaka, Yasushi Suto, Othman Benomar

Advances in asteroseismology of solar-like stars, now provide a unique method to estimate the stellar inclination $i_{\star}$. This enables to evaluate the spin-orbit angle of transiting planetary systems, in a complementary fashion to the Rossiter-M

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c00a3892b5972925521cd8ed8f2f11

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Asteroseismic Determination of the Stellar Rotation Period of the Kepler Transiting Planetary Systems and its Implications for the Spin–Orbit Architecture

Autor: Shoya Kamiaka, Othman Benomar, Yasushi Suto

Publikováno v: The Astronomical Journal. 157:172

We measure the rotation periods of 19 stars in the {\it Kepler} transiting planetary systems, $P_{\rm rot, astero}$ from asteroseismology and $P_{\rm rot, phot}$ from photometric variation of their lightcurve. Two stars exhibit two clear peaks in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8427ff8179a68b56d9df68830c02382b
https://doi.org/10.3847/1538-3881/ab0f33

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The Misaligned Orbit of the Earth-sized Planet Kepler-408b

Autor: Joshua N. Winn, Yasushi Suto, Kento Masuda, Fei Dai, Shoya Kamiaka, Othman Benomar

Publikováno v: The Astronomical Journal. 157:137

Kepler-408 is one of the 33 planet-hosting {\it Kepler} stars for which asteroseismology has been used to investigate the orientation of the stellar rotation axis relative to the planetary orbital plane. The transiting "hot Earth," Kepler-408b, has a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82152e4b3ff4e86c27d1a722a927c056
https://doi.org/10.3847/1538-3881/ab04a9

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Revisiting a gravity-darkened and precessing planetary system PTFO 8-8695: spin-orbit non-synchronous case

Autor: Atsunori Yonehara, Tsubasa Nishioka, Shoya Kamiaka, Michisuke Tanaka, Risa Murakami, Yuxin Xue, Madoka Saitoh, Kento Masuda, K. Inayama, Yasushi Suto

We reanalyse the time-variable lightcurves of the transiting planetary system PTFO 8-8695, in which a planet of 3 to 4 Jupiter mass orbits around a rapidly rotating pre-main-sequence star. Both the planetary orbital period of 0.448 days and the stell

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fc4ebb85087e756966cb9e000cae633

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