Stellar Evolution
An infinitely dense point that forms after a massive supernova occurs. Nothing can escape its gravity.
Black hole
Process by which low mass stars fuse hydrogen.
Proton-proton chain
Red giant
The diagonal from the top left to bottom right of the HR diagram where most stars lie.
Main sequence
Supernova
Celestial body that is too massive to be a planet, but not massive enough to begin nuclear fusion in its core.
Brown dwarf
What are the two forces that act in opposition to maintain equilibrium in stellar cores.
Temperature and gravity
Type of star that forms after a supernova. Core collapse is prevented by neutron degeneracy.
Neutron star
Where would a massive blue star be found on the HR diagram?
Top left
What are points of high density in a molecular cloud called?
Cloud core
Interstellar medium from which most stars are originate from.
Giant molecular cloud
Process by which high mass stars fuse hydrogen into helium.
Carbon cycle
A neutron star with an unusually strong magnetic field.
Bottom of the main-sequence band where new main sequence stars lie on.
Zero-age main sequence
Theorem that states that the structure of a star can be determined by its mass and distribution of elements.
Vogt-Russell Theorem
Structure that forms after a medium sized star out gases its outer layers and the remaining white dwarf ionizes the gas. Very luminous and beautiful.
Phenomenon that prevents core collapse in white dwarfs.
Electron degeneracy
Pre-main sequence (young) stars that are also variable stars.
T-tauri stars
Nearly vertical segment of the HR diagram where most variable stars lie on.
Instability strip
What are the special type of neutron stars whose synchrotron radiation is directed at the Earth?
Pulsar
AGB star
Process by which neutrons are captured faster than beta decay occurs, allowing leading to the formation of heavier elements.
R-process
Relatively metal poor variable stars that have short periods.
RR lyrae
A line protostars cross after it blows away debris around it. The star can now be detected at visible wavelengths.
Birth line
Process by which neutrons are captured slower than beta decay occurs.
s process