2:00 PM - 2:15 PM
[PPS06-14] Dependence of Central star mass on Protoplanetary disk evolution
Keywords:Protoplanetary disk, Low mass stars
In this study, a one-dimensional radial simulation of gas components of protoplanetary disks was done in consideration of photoevaporation by X-ray (Owen et al. 2010) and magnetically driven disk wind (Suzuki & Inutsuka et al., 2009). We investigated how the evolution of the disk changes by the difference of the central star mass.
We performed the evolution of protoplanetary disks with different masses of the central stars. If we define the evaporation time at 1au as the time when the surface density there falls below the observable level, it is shorter for a more massive central star, because the photoevaporation is more efficient.
In contrast, the evaporation time at the snowline shows the opposite trend; the evaporation is more rapid for disks with less massive central stars. This is because the location of the snowline has a very sensitive dependence on the mass of a central star.