176 citations · 1.8k across the 76 of their papers we have counts for
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Dust Growth and Magnetic Fields: from Cores to Disks (even down to Planets)
Yasuhiro Hasegawa, Jennifer I-Hsiu Li, Satoshi Okuzumi
The recent rapid progress in observations of circumstellar disks and extrasolar planets has reinforced the importance of understanding an intimate coupling between star and planet…
Magnetically Induced Disk Winds and Transport in the HL Tau Disk
Yasuhiro Hasegawa, Satoshi Okuzumi, Mario Flock +1
The mechanism of angular momentum transport in protoplanetary disks is fundamental to understand the distributions of gas and dust in the disks. The unprecedented, high spatial res…
Systematic analysis of spectral energy distributions and the dust opacity indices for Class 0 young stellar objects
Jennifer I-Hsiu Li, Hauyu Baobab Liu, Yasuhiro Hasegawa +1
We are motivated by the recent measurements of dust opacity indices beta around young stellar objects (YSOs), which suggest that efficient grain growth may have occurred earlier th…
The shadow knows: using shadows to investigate the structure of the pretransitional disk of HD 100453
Zachary C. Long, Rachel B. Fernandes, Michael Sitko +16
We present GPI polarized intensity imagery of HD 100453 in Y-, J-, and K1 bands which reveals an inner gap ( au), an outer disk ( au) with two prominent spiral arms,…
Chondrule Accretion with a Growing Protoplanet
Yuji Matsumoto, Shoichi Oshino, Yasuhiro Hasegawa +1
Chondrules are primitive materials in the Solar System. They are formed in the first about 3 Myr of the Solar System's history. This timescale is longer than that of Mars formation…
Diffusion of Oxygen Isotopes in Thermally Evolving Planetesimals and Size Ranges of Presolar Silicate Grains
S. Wakita, T. Nozawa, Y. Hasegawa
Presolar grains are small particles found in meteorites through their isotopic compositions which are considerably different from those of materials in the Solar System. If some is…
A concordant scenario to explain FU Ori from deep centimeter and millimeter interferometric observations
Hauyu Baobab Liu, Eduard I. Vorobyov, Ruobing Dong +13
We resolved FU Ori at 29-37 GHz using the JVLA with 0.07 resolution, and performed the complementary JVLA 8-10 GHz observations, the SMA 224 GHz and 272 GHz observations,…