UNIVERSE and THE SOLAR SYSTEM (2) Flashcards
A combination of the work of different scientists in order to explain solar formation, planetary formation, and planetary orbits
modern laplacian theory
Nebular Collapse:
- Temperature continued to _______
- The _______ spun faster and faster
- The solar nebula disk ________
Fill in the blanks
increase, solar nebula, flattened
Answered the original Laplacian Model’s angular momentum problem by introducing drag created by dust particles in the protoplanetary disk.
modern laplacian theory
Supported by the discovery of apparently young stars that were surrounded by disks of cool dust
modern laplacian theory
Further supported by the observation of excess infrared radiation in many stars that indicate the presence of disks of cooler material orbiting around those stars.
modern laplacian theory
The universe is too hot and too dense but the ingredients for the first stars were already present
Quarks Epoch
the universe cooled down for quarks to bind together and form Protons and Neutrons
Hadron Epoch
in this epoch, Protons and Neutrons combined to form nuclei and the first nuclear element was formed which is helium.
Lepton and Nuclear Epoch
Epochs in Matter Era (3)
- Atomic Epoch
- Galactic Epoch
- Stellar Epoch
Electrons and Nuclei combined, this process is called recombination. Also, they formed the 2nd nuclear element which is hydrogen
Atomic Epoch
Helium and Hydrogen dotted the universe with atomic clouds. Within these clouds, gases have enough gravity to cause atoms to collect. This became the seedlings of galaxies.
Galactic Epoch
Stars begin to form in this epoch. As well as the remaining elements, planets, and life.
Stellar Epoch
Terrestrial Planets (4)
Mercury, Venus, Earth, Mars
Gas giants (4)
Jupiter, Saturn, Uranus, Neptune
Rocky fragments concentrated in an orbit
asteroids
