17 citations · 37 across the 7 of their papers we have counts for
7 papers
Solar Neutrino Flux Fluctuations Caused by Solar Gravity Modes
Yoshiki Hatta, Yuuki Nakano, Sho Sugama +3
We have evaluated fluctuations in neutrino fluxes caused by solar gravity (g) modes based on the analysis of linear adiabatic oscillation of a spherically symmetric star. We find t…
High-order Gravity-mode Period Spacing Patterns of Intermediate-mass () Main-sequence Stars I. Perturbative Analysis
Yoshiki Hatta, Takashi Sekii
Theoretical study of high-order gravity-mode period spacing () pattern is relevant for the better understanding of internal properties of intermediate-mass ($1.5 \, M_\odot <…
Inversion for Inferring Solar Meridional Circulation: The Case with Constraints on Angular Momentum Transport inside the Sun
Yoshiki Hatta, Hideyuki Hotta, Takashi Sekii
We have carried out inversions of travel times as measured by Gizon et al. (2020) to infer the internal profile of the solar meridional circulation (MC). A linear inverse problem h…
Semi-Analytical Expression of G-Mode Period Spacing: The Case of Brunt-Väisälä Frequency with Not a Jump But a Ramp
Yoshiki Hatta
To decipher complex patterns of gravity-mode period spacings observed for intermediate-mass main-sequence stars is an important step toward the better understanding of the structur…
Bayesian rotation inversion of KIC 11145123
Yoshiki Hatta, Takashi Sekii, Othman Benomar +1
A scheme of Bayesian rotation inversion, which allows us to compute the probability of a model of a stellar rotational profile, is developed. The validation of the scheme with simp…
The two-dimensional internal rotation of KIC11145123
Yoshiki Hatta, Takashi Sekii, Masao Takata +1
The two-dimensional internal rotation of KIC11145123 has been inferred via asteroseismology. Based on the Optimally Localized Averaging method and a simple three-zone modeling of t…
Non-standard modeling of a possible blue straggler star, KIC 11145123
Yoshiki Hatta, Takashi Sekii, Masao Takata +1
Non-standard modeling of KIC 11145123, a possible blue straggler star, has been asteroseismically carried out based on a scheme to compute stellar models with the chemical composit…