253 citations · 2.1k across the 57 of their papers we have counts for
4 papers · 1 filter
Dynamics Near the Inner Dead-Zone Edges in a Proprotoplanetary Disk
Kazunari Iwasaki, Kengo Tomida, Shinsuke Takasao +2
We perform three-dimensional global non-ideal magnetohydrodynamic simulations of a protoplanetary disk containing the inner dead-zone edge. We take into account realistic diffusion…
Primordial or Secondary? Testing models of debris disk gas with ALMA
Gianni Cataldi, Yuri Aikawa, Kazunari Iwasaki +13
The origin and evolution of gas in debris disks is still not well understood. Secondary gas production from cometary material or a primordial origin have been proposed. So far, obs…
A Constraint on the Amount of Hydrogen from the CO Chemistry in Debris Disks
Kazunari Iwasaki, Hiroshi Kobayashi, Aya E. Higuchi +1
The faint CO gases in debris disks are easily dissolved into C by UV irradiation, while CO can be reformed via reactions with hydrogen. The abundance ratio of C/CO could thus be a…
First sub-arcsecond submillimeter-wave [C I] image of 49 Ceti with ALMA
Aya E. Higuchi, Kazuya Saigo, Hiroshi Kobayashi +7
We present the first sub-arcsecond images of 49 Ceti in the [C I]3P1-3P0 emission and the 614 micron dust continuum emission observed with ALMA, as well as that in the CO(J=3-2) em…