8 papers
Modelling the Break in the Specific Angular Momentum within the Envelope-Disk Transition Zone
Indrani Das, Shantanu Basu, Nagayoshi Ohashi +2
The observations of protostellar systems show a transition in the radial profile of specific angular momentum (and rotational velocity), evolving from ($v_Ï\…
Twisted Pseudodisk and Asymmetric Mass Accretion on the Circumstellar Disk
Masahiro N. Machida, Shingo Hirano, Shantanu Basu
We model gas inflow patterns onto circumstellar disks and the evolution of the pseudodisk using three-dimensional resistive MHD simulations. Starting from a prestellar core without…
Early Stages of Protostellar Disk Evolution: A Link to the Initial Cloud Core
Majd Noel, Rahul Khanna, Shahram Abbassi +2
We study the structure and evolution of the very early protostellar disk (``protodisk'') just after protostar formation, where disk self-gravity dominates and the stellar contribut…
Development of 1-D non-ideal MHD simulation code towards understanding Long-term Evolution of Protoplanetary Disk
Yudai Kobayashi, Daisuke Takaishi, Yusuke Tsukamoto +1
We developed a one-dimensional magnetohydrodynamic (MHD) simulation code to investigate the long-term evolution of protoplanetary disks with low computational cost. In this simulat…
Effect of Magnetic Field on the Accretion Phase of Population III Star Formation
Masahiro N. Machida, Shingo Hirano, Shantanu Basu
We examine the impact of the magnetic field on Population III star formation by varying the magnetic field strength. We perform simulations with magnetic field strengths ranging fr…
Accretion bursts in young intermediate-mass stars make planet formation challenging
Indrani Das, Eduard Vorobyov, Shantanu Basu
We investigate the occurrence of accretion bursts, dust accumulation, and the prospects for planetesimal formation in a gravitationally unstable magnetized protoplanetary disk with…