Disc-mass distribution in star-disc encounters
نویسندگان
چکیده
منابع مشابه
Numerical simulations of protostellar encounters I . Star - disc encounters
It appears that most stars are born in clusters, and that at birth most stars have circumstellar discs which are comparable in size to the separations between the stars. Interactions between neighbouring stars and discs are therefore likely to play a key rôle in determining disc lifetimes, stellar masses, and the separations and eccentricities of binary orbits. Such interactions may also cause ...
متن کاملNumerical simulations of protostellar encounters II . Coplanar disc - disc encounters
It is expected that an average protostar will undergo at least one impulsive interaction with a neighbouring protostar whilst a large fraction of its mass is still in a massive, extended disc. Such interactions must have a significant impact upon the evolution of the protostars and their discs. We have carried out a series of simulations of coplanar encounters between two stars, each possessing...
متن کاملNumerical simulations of protostellar encounters III . Non - coplanar disc - disc encounters
It is expected that an average protostar will undergo at least one impulsive interaction with a neighbouring protostar whilst a large fraction of its mass is still in a massive, extended disc. If protostars are formed individually within a cluster before falling together and interacting, there should be no preferred orientation for such interactions. As star formation within clusters is believe...
متن کاملA circumstellar disc in a high-mass star forming region
We present an edge-on Keplerian disc model to explain the main component of the 12.2 and 6.7GHz methanol maser emission detected toward NGC7538IRS1N . The brightness distribution and spectrum of the line of bright masers are successfully modeled with high amplification of background radio continuum emission along velocity coherent paths through a maser disc. The bend seen in the position-veloci...
متن کاملStellar Encounters: A Stimulus for Disc Fragmentation?
An interaction between a star-disc system and another star will perturb the disc, possibly resulting in a significant modification of the disc structure and its properties. It is still unclear if such an encounter can trigger fragmentation of the disc to form brown dwarfs or gas giant planets. This paper details high resolution Smoothed Particle Hydrodynamics (SPH) simulations investigating the...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201117682