Stars Timone Pumbaas Analysis Life Cycle Life Cycle
Stars!
Timone & Pumbaa's Analysis
Life Cycle
Life Cycle video
Size Comparisons
Birth of a Star (Stellar) Nebulas
Star Life Span Size vs. Age
Star Life Span Big stars die quickly SUVs Sports Car Sedan Hybrid
Blue/Red Giants! Betelgeuse (red) Rigel (blue)
White Dwarf
Neutron Star
Black Hole Distortions Gravity so strong… nothing can escape!
Star Temperature Red vs. Blue hot, Red cold, Yellow medium
Stellar Energy: Fusion • Fusion – the fusing of two atomic nuclei.
Reading the table Protons + Neutrons = Atomic Mass different neutrons called isotopes 93 Mo, 95 Mo, 96 Mo, 97 Mo, 98 Mo, and 100 Mo occur in nature
Fusion in a nutshell: 1 H + 1 H = 4 He + energy This powers stars and produces the light we see!
E = MC^2 1 H + 1 H > 4 He (weighs more) Extra mass turns into energy! That energy is seen as radiation! Stars/the sun do this until they run out of H
4 H => He Further fusion
Biggest elements formed in normal star processes… Si Ni Co Fe It all leads to the end of the line… Fe!
Supernova Process After, The heaviest elements can be formed, heavier than Fe, up through U
Star forces: Gravity vs. Fusion • Birth • Main (H) • Giant (He+) • Death
Life Cycle Birth H fusion Heavy fusion Dying Death
- Slides: 28