activity
20102024
most citedA Statistical Analysis of SEEDS and Other High-Contrast Exoplanet Surveys: Massive Planets or Low-Mass Brown Dwarfs?

156 citations · 811 across the 24 of their papers we have counts for

collaborators

24 papers

astro-ph.EP2024

Transit Spectroscopy of K2-33b with Subaru/IRD: Spin-Orbit Alignment and Tentative Atmospheric Helium

Teruyuki Hirano, Eric Gaidos, Hiroki Harakawa +13

Exoplanets in their infancy are ideal targets to probe the formation and evolution history of planetary systems, including the planet migration and atmospheric evolution and dissip…

astro-ph.EP2024

Forming localized dust concentrations in a dust ring: DM Tau case study

Hauyu Baobab Liu, Takayuki Muto, Mihoko Konishi +8

The previous, high angular resolution 225 GHz (1.3 mm) continuum observations on the transitional disk DM Tau have resolved an outer ring at 20-120 au radii that is weakly az…

astro-ph.EP202326 cited

The mass determination of TOI-519 b: a close-in giant planet transiting a metal-rich mid-M dwarf

Taiki Kagetani, Norio Narita, Tadahiro Kimura +33

We report the mass determination of TOI-519 b, a transiting substellar object around a mid-M dwarf. We carried out radial velocity measurements using Subaru / InfraRed Doppler (IRD…

astro-ph.EP202313 cited

Absence of extended atmospheres in low-mass star radius-gap planets GJ 9827 b, GJ 9827 d and TOI-1235 b

Vigneshwaran Krishnamurthy, Teruyuki Hirano, Eric Gaidos +20

\textit{Kepler} showed a paucity of planets with radii of 1.5 - 2 around solar mass stars but this radius-gap has not been well studied for low-mass star plane…

astro-ph.SR20234 cited

Direct Imaging Explorations for Companions around Mid-Late M Stars from the Subaru/IRD Strategic Program

Taichi Uyama, Charles Beichman, Masayuki Kuzuhara +32

The Subaru telescope is currently performing a strategic program (SSP) using the high-precision near-infrared (NIR) spectrometer IRD to search for exoplanets around nearby mid/late…

astro-ph.EP202325 cited

ALMA Band 6 high-resolution observations of the transitional disk around SY Cha

Ryuta Orihara, Munetake Momose, Takayuki Muto +10

In this study, we reported the results of high-resolution (0.14 arcsec) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the 225 GHz dust continuum and CO molecu…