Binary star formation: gravitational fragmentation followed by capture
نویسندگان
چکیده
منابع مشابه
Fragmentation in massive star formation.
Studies of evolved massive stars indicate that they form in a clustered mode. During the earliest evolutionary stages, these regions are embedded within their natal cores. Here we present high-spatial-resolution interferometric dust continuum observations disentangling the cluster-like structure of a young massive star-forming region. The derived protocluster mass distribution is consistent wit...
متن کاملStar Formation from Turbulent Fragmentation
Star formation is intimately linked to the dynamical evolution of molecular clouds. Turbulent fragmentation determines where and when protostellar cores form, and how they contract and grow in mass via accretion from the surrounding cloud material. Efficiency, spatial distribution and timescale of star formation in turbulent clouds are estimated by comparing numerical models of self-gravitating...
متن کاملFragmentation and Star Formation in Turbulent Cores
We examine the conditions under which binary and multiple stars may form out of turbulent molecular cloud cores using high resolution 3-D, adaptive mesh refinement (AMR) hydrodynamics (Truelove et al., 1997, 1998; Klein, 1999). We argue that previous conclusions on the conditions for cloud fragmentation have limited applicability, since they did not allow for the nonlinear density and velocity ...
متن کاملControl of Star Formation in Galaxies by Gravitational Instability
We present high resolution simulations of star formation in a wide range of disk galaxies, using a three-dimensional smoothed particle hydrodynamics code with an isothermal equation of state and no explicit feedback. Absorbing sink particles are inserted in high density regions to directly measure the mass of gravitationally collapsing gas. Despite the simplicity of our assumptions, our models ...
متن کاملHigh Mass Star Formation by Gravitational Collapse of Massive Cores
The current generation of millimeter interferometers have revealed a population of compact (r ∼< 0.1 pc), massive (M ∼ 100 M⊙) gas cores that are the likely progenitors of massive stars. I review models for the evolution of these objects from the observed massive core phase through collapse and into massive star formation, with particular attention to the least wellunderstood aspects of the pro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1995
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/277.2.705