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1	A theoretical study of stellart pulsations in young brown dwarfs Okeng'o, Geoffrey Onchong’a January 2011 (has links) Magister Scientiae - Msc / 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. / South Africa Brown dwarfs Very low mass stars Pulsation equations Perturbation equations Work integrals Viscosity Turbulent pressure Free parameters
2	A theoretical study of stellart pulsations in young brown dwarfs Okeng'o, Geoffrey Onchongâa January 2011 (has links) <p>This thesis reports the results of a twofold study on the recently proposed phenomenon of &lsquo / stellar pulsations&rsquo / 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.</p> Brown dwarfs Very low mass stars Pulsation equations Perturbation equations Work integrals Frozen-in approximation Pulsation constants Period ratios Time-dependent treatment Turbulent viscosity Turbulent pressure Free parameters.
3	A theoretical study of stellart pulsations in young brown dwarfs Okeng'o, Geoffrey Onchongâa January 2011 (has links) <p>This thesis reports the results of a twofold study on the recently proposed phenomenon of &lsquo / stellar pulsations&rsquo / 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.</p> Brown dwarfs Very low mass stars Pulsation equations Perturbation equations Work integrals Frozen-in approximation Pulsation constants Period ratios Time-dependent treatment Turbulent viscosity Turbulent pressure Free parameters.

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