What are the 6 stages of a low mass star?

The exact stages of evolutions are: Subgiant Branch (SGB) – hydrogen shell burning – outer layers swell. Red Giant Branch – helium ash core compresses – increased hydrogen shell burning. First Dredge Up – expanding atmosphere cools star – stirs carbon, nitrogen and oxygen upward – star heats up.

What are the 7 stages of a low mass star?

Seven Main Stages of a Star

Giant Gas Cloud. A star originates from a large cloud of gas.
Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced.
T-Tauri Phase.
Main Sequence.
Red Giant.
The Fusion of Heavier Elements.
Supernovae and Planetary Nebulae.

What are the life stages of a low mass star quizlet?

Terms in this set (5)

Star Forming Nebula.
Nuclear Fusion Begins, Protostar.
Core Pressure Balances Gravity, Main Sequence Star aka adult.
Fuel Runs Out, Forces Unbalanced, Red Giant.
White Dwarf with a planetary nebula (nothing to do with planets)

How are low mass stars formed?

While massive stars and their final stages dominate the energy input into the interstellar medium, low-mass stars constitute most of the total mass in our galaxy. It is generally accepted that stars form by the gravitational collapse of cold, dense, and dusty molecular cloud cores.

What is the final stage of a low mass star?

For low mass stars, this is the final stage of their lifetime in which they generate energy via fusion. Once the helium and hydrogen shell fusion uses up all of the available fuel, the star’s life is effectively over. However, the star will still leave behind two visible remnants.

How do low mass stars end their lives?

Low mass stars end their lives here, by expelling their outer layers due to thermal pulses in a planetary nebula phase, but high mass stars have so much mass that they can survive this phase. In our earlier analogy of a pressure cooker, high-mass stars have a heavy “lid,” so they keep on cooking.

How long do low mass stars live for?

The smallest stars in the universe have exceedingly long lives – in fact, none have faced their end yet. Red dwarfs, stars with less than 0.4 solar masses, burn so slowly that they might live to 100 billion years old, much longer than the current age of the universe.