A numerical method for generating rapidly rotating bipolytropic structures in equilibrium

  title={A numerical method for generating rapidly rotating bipolytropic structures in equilibrium},
  author={Kundan Kadam and Patrick M. Motl and Juhan Frank and Geoffrey C. Clayton and Dominic Marcello},
  journal={Monthly Notices of the Royal Astronomical Society},
We demonstrate that rapidly rotating bipolytropic (composite polytropic) stars and toroidal disks can be obtained using Hachisu's self consistent field technique. The core and the envelope in such a structure can have different polytropic indices and also different average molecular weights. The models converge for high $T/|W|$ cases, where T is the kinetic energy and W is the gravitational energy of the system. The agreement between our numerical solutions with known analytical as well as… 
The equilibrium of overpressurized polytropes
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Numerical simulations of mass transfer in binaries with bipolytropic components
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Rotating white dwarf models with finite-temperature envelope
  • S. Yoshida
  • Physics
    Monthly Notices of the Royal Astronomical Society
  • 2019
We present new numerical method to compute structures of differentially rotating white dwarfs with thermal stratification. Our models have cores composed of ions and completely degenerate electrons
Jupiter as a Rotating Bipolytrope
  • K. Kadam
  • Physics
    Research Notes of the AAS
  • 2021
Polytropes have long been used to model a wide variety of astrophysical objects. A bipolytrope (composite polytrope) may be used for bodies with a distinct core-envelope structure. In this short
Is Betelgeuse the Outcome of a Past Merger?
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P o S ( A P C S 2 0 1 6 ) 0 5 5 Introducing Octo-tiger / HPX : Simulating Interacting Binaries with Adaptive Mesh Refinement and the Fast Multipole Method
We introduce a new computer code, Octo-tiger/HPX. Octo-tiger/HPX simulates classically selfgravitating hydrodynamic fluids on an adaptive mesh refinement (AMR) grid. It is particularly suited for
Numerical Simulations of Mass Transfer in Close and Contact Binaries Using Bipolytropes
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