7 papers
Prestellar Cores in Turbulent Clouds: Observational Perspectives on Structure, Kinematics, and Lifetime
Sanghyuk Moon, Eve C. Ostriker
We analyze an ensemble of simulated prestellar cores to facilitate interpretation of structure, kinematics, and lifetime of observed cores. While our theory predicts a "characteris…
Dynamically Controlled Transport of GeV Cosmic Rays in Diverse Galactic Environments
Ronan Hix, Lucia Armillotta, Eve Ostriker +1
We study transport of GeV cosmic rays (CRs) in a set of high-resolution TIGRESS magnetohydrodynamic simulations of the star-forming interstellar medium (ISM). Our local disk patch…
Prestellar Cores in Turbulent Clouds: Properties of Critical Cores
Sanghyuk Moon, Eve C. Ostriker
A fraction of the dense cores within a turbulent molecular cloud will eventually collapse to form stars. Identifying the physical criteria for instability and analyzing critical co…
The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas II: 3D RMHD Simulations and Tests of Semi-Analytic Models
Lachlan Lancaster, Chang-Goo Kim, Jeong-Gyu Kim +2
In a companion paper (Paper I) we presented a Co-Evolution Model (CEM) in which to consider the evolution of feedback bubbles driven by massive stars through both stellar winds and…
The Co-Evolution of Stellar Wind-blown Bubbles and Photoionized Gas I: Physical Principles and a Semi-Analytic Model
Lachlan Lancaster, Jeong-Gyu Kim, Greg L. Bryan +3
We propose a new framework for the simultaneous feedback of stellar winds and photo-ionizing radiation from massive stars, distinguishing the locations where forces are applied, an…
Prestellar Cores in Turbulent Clouds: Numerical Modeling and Evolution to Collapse
Sanghyuk Moon, Eve C. Ostriker
A fundamental issue in star formation is understanding the precise mechanisms leading to the formation of prestellar cores, and their subsequent gravitationally unstable evolution.…