4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
Paper Review: Initial screening in progress
Home > Timetable > Session details > Contribution details
PDF | XML | iCal

3D Radiation-Hydro Models of the Circumstellar Environments of Evolved stars

Presented by Mr. Elias AYDI on 6 Jul 2016 from 11:50 to 12:10
Type: Oral Presentation
Session: Astrophysics (1)
Track: Track D1 - Astrophysics

Abstract

This work addresses 3D Radiation-Hydro Models of the Circumstellar Environments of Evolved stars". It consists of modeling Asymptotic Giant Branch (AGB) stars that has one or multiple Jupiter-like companions, aiming to understand the morphology of the circumstellar environment of such systems where the star is a mass losing via stellar wind (AGB). For this purpose, we build 3D models of pulsating AGB stars with one or several companions, and we simulate the evolution of these systems using the Smoothed Particle Hydrodynamic (SPH) method. The radiative equilibrium temperature and optical depths are derived for the atmosphere particles in order to simulate dust formation in the circumstellar environment of the AGB star. Dust formation, as well as shocks in the atmosphere are essential for rapid mass loss, hence we added both mechanism to the simulations. The results of our models can help us to explain the morphology of planetary nebulae as well as it serves as a method for exoplanet detection in planetary systems.

Award

YES

Level

PhD

Supervisor

Patricia Whitelock - paw@saao.ac.za UCT - South African Astronomical Observatory

Paper

NO

Permission

YES

Place

Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room: 5A


Primary authors

  • Mr. Elias AYDI University of Cape Town - South African Astronomical Observatory
More

Co-authors

More