176 citations · 1.8k across the 76 of their papers we have counts for
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Constraints on photoevaporation models from (lack of) radio emission in the Corona Australis protoplanetary disks
Roberto Galván-Madrid, Hauyu Baobab Liu, Carlo Felice Manara +8
Photoevaporation due to high-energy stellar photons is thought to be one of the main drivers of protoplanetary disk dispersal. The fully or partially ionized disk surface is expect…
Surface Geometry of Protoplanetary Disks Inferred From Near-Infrared Imaging Polarimetry
Michihiro Takami, Yasuhiro Hasegawa, Takayuki Muto +58
We present a new method of analysis for determining the surface geometry of five protoplanetary disks observed with near-infrared imaging polarimetry using Subaru-HiCIAO. Using as…
Planet Traps and Planetary Cores: Origins of the Planet-Metallicity Correlation
Yasuhiro Hasegawa, Ralph E. Pudritz
Massive exoplanets are observed preferentially around high metallicity ([Fe/H]) stars while low-mass exoplanets do not show such an effect. This so-called planet-metallicity correl…
Planet Traps and First Planets: the Critical Metallicity for Gas Giant Formation
Yasuhiro Hasegawa, Hiroyuki Hirashita
The ubiquity of planets poses an interesting question: when first planets are formed in galaxies. We investigate this problem by adopting a theoretical model developed for understa…
Dust in Protoplanetary Disks: A Clue as to the Critical Mass of Planetary Cores
Yasuhiro Hasegawa, Ralph E. Pudritz
Dust in protoplanetary disks is recognized as the building blocks of planets. In the core accretion scenario, the abundance of dust in disks (or metallicity) is crucial for forming…