List of works by Masahiro Ikoma

A 38 Million Year Old Neptune-sized Planet in the Kepler Field

scientific article published on 09 February 2022

A Planetary Companion to the Hyades Giant ε Tauri ⬇️

scientific article (publication date: 20 May 2007)

A chemical survey of exoplanets with ARIEL

scholarly article

A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs: Color validation of TOI-4479b and TOI-2081b

A systematic study of the final masses of gas giant planets ⬇️

scientific article published in January 2007

Acceleration of cooling of ice giants by condensation in early atmospheres

scientific article published in January 2017

Accretion Properties of PDS 70b with MUSE*

scientific article published on 22 April 2020

An Earth-sized Planet around an M5 Dwarf Star at 22 pc

scientific article published in 2023

An Earth-sized exoplanet ripe for emission spectroscopy with JWST in orbit around a nearby ultracool dwarf star

scientific article published on 30 November 2023

An M dwarf accompanied by a close-in giant orbiter with SPECULOOS

scientific article published in MNRAS:L in 2023

Ariel planetary interiors White Paper

scientific article published on 21 May 2021

Capture of solids by growing proto-gas giants: effects of gap formation and supply limited growth

scientific article published in January 2019

Characterization of starspots on a young M-dwarf K2-25: multi-band observations of stellar photometric variability and planetary transits

Characterization of starspots on a young M-dwarf K2-25: multi-band observations of stellar photometric variability and planetary transits

scientific article published on 22 March 2024

Composition and fate of short-period super-Earths. The case of CoRoT-7b

scholarly article

Constraining Planetary Gas Accretion Rate from H α Line Width and Intensity: Case of PDS 70 b and c

scientific article published on 6 November 2019

Constraints on the mass of a habitable planet with water of nebular origin ⬇️

scientific article published in January 2006

Critical core mass for enriched envelopes: the role of H_2_O condensation ⬇️

scientific article published in January 2015

Critical core masses for gas giant formation with grain-free envelopes ⬇️

scientific article published in January 2010

Demonstrating high-precision, multiband transit photometry with MuSCAT: a case for HAT-P-14b ⬇️

scientific article published in the Astrophysical Journal

Detectability of Rocky-Vapour atmospheres on super-Earths with Ariel

scientific article published on 22 January 2021

Detectable Molecular Features above Hydrocarbon Haze via Transmission Spectroscopy with JWST: Case Studies of GJ 1214b-, GJ 436b-, HD 97658b-, and Kepler-51b-like Planets ⬇️

scientific article

Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

scholarly article

ESPRESSO Mass determination of TOI-263b: An extreme inhabitant of the brown dwarf desert

Editorial: Topical Collection on the Delivery of Water to Proto-Planets, Planets and Satellites

Editorial

Enhanced collisional growth of a protoplanet that has an atmosphere

scientific article published in Astronomy and Astrophysics

Exploring the Ability of Hubble Space Telescope WFC3 G141 to Uncover Trends in Populations of Exoplanet Atmospheres through a Homogeneous Transmission Survey of 70 Gaseous Planets

scientific article published in November 2023

Exploring the link between star and planet formation with Ariel

scientific article published on 15 October 2021

Five Key Exoplanet Questions Answered via the Analysis of 25 Hot-Jupiter Atmospheres in Eclipse

scientific article published on 25 April 2022

Formation and Evolution of Protoatmospheres

scientific article

Formation and Evolution of Protoatmospheres

scientific article published in 2016

Formation of aqua planets with water of nebular origin: effects of water enrichment on the structure and mass of captured atmospheres of terrestrial planets

scientific article

Formation of gas giant planets: core accretion models with fragmentation and planetary envelope

scientific article

Formation of giant planets in dense nebulae: critical core mass revisited ⬇️

Formation of giant planets: dependences on core accretion rate and grain opacity ⬇️

article published in 2000

Gas giant formation with small cores triggered by envelope pollution by icy planetesimals

article by Hori Y. & Ikoma M. published 2011 in Monthly Notices of the Royal Astronomical Society

Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy

scientific article published on 23 May 2024

IRSF SIRIUSJHKsSimultaneous Transit Photometry of GJ 1214b

Impact of photo-evaporative mass loss on masses and radii of water-rich sub/super-Earths

scientific article published in January 2014

In situ accretion of hydrogen-rich atmospheres on short-period super-earths: implications for the Kepler-11 planets ⬇️

scientific article published in January 2012

Infrared Doppler instrument (IRD) for the Subaru telescope to search for Earth-like planets around nearby M-dwarfs

scientific article published on 14 July 2014

Keck/OSIRIS Paβ High-contrast Imaging and Updated Constraints on PDS 70b

scientific article published on 26 October 2021

LOTUS: wide-field monitoring nanosatellite for finding long-period transiting planets

scientific article

Laser-shock compression and Hugoniot measurements of liquid hydrogen to 55 GPa

scholarly article in Physical Review B, vol. 83 no. 5, February 2011

Multi-band, multi-epoch observations of the transiting warm Jupiter WASP-80b ⬇️

scientific article published in the Astrophysical Journal

Multi-color transit photometry of GJ 1214b through BJHK_s_ bands and a long-term monitoring of the stellar variability of GJ 1214 ⬇️

scientific article published in the Astrophysical Journal

On the origin of HD 149026b ⬇️

scientific article published in January 2006

On uncertainty of Jupiter's core mass due to observational errors

Optical-to-near-infrared simultaneous observations for the hot Uranus GJ3470b: a hint of a cloud-free atmosphere ⬇️

scientific article published in the Astrophysical Journal

Planet engulfment by ~1.5-3 M☉ red giants ⬇️

scientific article published in the Astrophysical Journal

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

scientific article (publication date: 25 June 2008)

Runaway climate cooling of ocean planets in the habitable zone: a consequence of seafloor weathering enhanced by melting of high-pressure ice

scientific article published in 2019

Self-consistent model atmospheres and the cooling of the solar system's giant planets ⬇️

scientific article published in the Astrophysical Journal

Shock Hugoniot and temperature data for polystyrene obtained with quartz standard

article by N. Ozaki et al published June 2009 in Physics of Plasmas

Starspots-transit depth relation of the evaporating planet candidate KIC 12557548b ⬇️

scientific article published in January 2013

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets Around M Dwarf Stars and Revised Parameters for Three Others

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others

scientific article published in October 2023

TOI-1442 b and TOI-2445 b: two ultra-short period super-Earths around M dwarfs

TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf

scientific article published on 12 August 2022

TOI-1696: a nearby M4 dwarf with a $3R_\oplus$ planet in the Neptunian desert

TOI-2285b: A 1.7 Earth-radius Planet Near the Habitable Zone around a Nearby M Dwarf ⬇️

scholarly article

The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M dwarfs

The infrared Doppler (IRD) instrument for the Subaru telescope: instrument description and commissioning results

scientific article published on 13 July 2018

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

scientific article published in 2023

The origin of the heavy-element content trend in giant planets via core accretion ⬇️

scientific article published in January 2018

Theoretical Transmission Spectra of Exoplanet Atmospheres with Hydrocarbon Haze: Effect of Creation, Growth, and Settling of Haze Particles. II. Dependence on UV Irradiation Intensity, Metallicity, C/O Ratio, Eddy Diffusion Coefficient, and Temperatu

Theoretical emission spectra of atmospheres of hot rocky super-earths ⬇️

scientific article published in January 2015

Theoretical model of hydrogen line emission from accreting gas giants ⬇️

scientific article published in January 2018

Three short-period Earth-sized planets around M dwarfs discovered by TESS: TOI-5720b, TOI-6008b and TOI-6086b

Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions*

scientific article published on 23 September 2021

Two sub-Neptunes around the M dwarf TOI-1470

scientific article published in 2023

Two temperate super-Earths transiting a nearby late-type M dwarf

Validation and atmospheric exploration of the sub-Neptune TOI-2136b around a nearby M3 dwarf

Water Partitioning in Planetary Embryos and Protoplanets with Magma Oceans

scientific article

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