Binary Evolution in Stellar Systems

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evolution of the Binary Fraction in Dense Stellar Systems

Using our recently improved Monte Carlo evolution code, we study the evolution of the binary fraction in globular clusters. In agreement with previous N -body simulations, we find generally that the hard binary fraction in the core tends to increase with time over a range of initial cluster central densities for initial binary fractions . 90%. The dominant processes driving the evolution of the...

متن کامل

Predicting the properties of binary stellar systems: the evolution of accreting protobinary systems

We investigate the formation of binary stellar systems. We consider a model where a ‘seed’ protobinary system forms, via fragmentation, within a collapsing molecular cloud core and evolves to its final mass by accreting material from an infalling gaseous envelope. This accretion alters the mass ratio and orbit of the binary, and is largely responsible for forming the circumstellar and/or circum...

متن کامل

Peculiar rotation in evolved binary systems: stellar and tidal evolution of TZ Fornacis

Aims. TZ Fornacis is an evolved binary system with an orbital period of 75.7 days and a circular orbit. The two stars have similar masses (2.045± 0.055 and 1.945± 0.027 M ) but very different radii: 8.33± 0.12 and 3.966± 0.088 R . One of its most interesting characteristics is that while the primary rotates synchronously with the mean orbital angular velocity, the secondary is rotating 16 times...

متن کامل

Noise-driven evolution in stellar systems: Theory

We present a theory for describing the evolution of a galaxy caused by stochastic events such as weak mergers, transient spiral structure, orbiting blobs, etc. This noise excites large-scale patterns that drives the evolution of the galactic density profile. In dark-matter haloes, the repeated stochastic perturbations preferentially ring the lowest-order modes of the halo with only a very weak ...

متن کامل

The Structure of Stellar Coronae in Active Binary Systems

A survey of 28 stars (22 active binary systems, plus 6 single stars or wide binaries for comparison) using extreme ultraviolet spectra has been conducted to establish the structure of stellar coronae in active binary systems from the emission measure distribution (EMD), electron densities, and scale sizes. Observations obtained by the Extreme Ultraviolet Explorer satellite (EUVE) during 9 years...

متن کامل

ذخیره 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: Symposium - International Astronomical Union

سال: 1975

ISSN: 0074-1809

DOI: 10.1017/s0074180900015436