Of course, the answer depends on the laws of physics you consider to solve the problem. I’m giving an answer based on really basic laws, but it’s obviously possible to give other answers by taking other theories into account (relativity, nuclear physics, and so on). My answer uses these simple physics models: - basic thermodynamic: energy conservation and entropy. - classical mecanichs: energy can be "stored" as movements (linear or rotations), and you have centrifugal forces. - basic chemistry: nuclear reactions in stars are chemical reactions that produces or consume heat (no radiations are taken into account, this no real nuclear reactions as in modern nuclear models, although I confess this is a shame…). - since in your model you have a weight loss due to radiation, we will use this complementary hypothesis: energy can turn into mass, mass into radiations, radiations into energy, or any combination of these (basically more or less "e=mc^2")
These models are valid, even if they are not the most up-to-date ones ^^ Or it’s up-to-date in a late 1920’s world.
In this context, the answer is probably yes, with slight differences, due to these mechanisms: - since you have convection, the atoms are getting hotter while getting closer to the heart of the star. 273
The convection movement can also locally increase the pressure, so the temperature (energy exchange between movement and heat). - more heat and pressure means more possibilities of nuclear reactions, which brings more light (convection -> energy(heat) -> radiations). - more radiations, and more heat, so a higher frenquency of radiation -> red light turns to blue (nuclear physics would be useful here, but I said I would do without it) AND more pressure so more density, so more gravity, so smaller star -> this is your first step (blue dwarf). - more accumulated heat but less materials to react, so the energy can just transfer to movement -> the spinning movement increases while nuclear reactions are slower BUT also in convection movement (due to your first hypothesis) -> centrifugal force make the star bigger and at a lower temperature (density decreases), but the nuclear reactions last longer -> this is your second step (red giant), with a little difference: the convection lets more nuclear reactions happen… So it would rather be an "orange giant", not red. - at the end of any nuclear reaction (but it will happen sooner than in reality, since the convection lets more reactions happen, so matter reacts faster, so sooner), you have a classic white dwarf. A slight difference will be that convection will not be possible anymore, so the movement will turn into two possible things: rotation speed (you have a spinning white dwarf) or heat (you have a "more-than-white" dwarf, which will looks like a white dwarf in visible range, so no difference). 184