A theoretical study of stellart pulsations in young brown dwarfs

This thesis reports the results of a twofold study on the recently proposed phenomenon of ‘stellar pulsations’ in young brown dwarfs by the seminal study of Palla and Baraffe (2005) (PB05, thereafter). The PB05 study presents results of a non-adiabatic linear stability analysis showing that young brown dwarfs should become pulsationally unstable during the deuterium burning phase of their evolution.

Grantor dc:publisher.institution

University of the Western Cape

Year dc:date.issued

2011

Author dc:creator

• Okeng'o, Geoffrey Onchong’a

Advisor dc:contributor.advisor

• Olivier, Etienne Aubrey

• Brown dwarfs
• Very low mass stars
• Pulsation equations
• Perturbation equations
• Work integrals
• Viscosity
• Turbulent pressure
• Free parameters