AST201H1 Lecture Notes - Lecture 5: Scale Of Temperature, Emission Spectrum, Planetary Nebula

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST201H1
• Professor: Marija Stankovic

Document Summary

How do we get knowledge about astronomical data. All we know about the universe is from the light we receive. From one level to another, it can only happen if the electron has the energy to the correspond to the difference between which that transition happens. The further away from the nucleus, the energy goes up. Possible transitions (on the slide) are different/ highlighted for different colors. Number of these orbitals, the energy (how far the space). Circular representation, more horizontal representation (cut the circle and level it out). Each transition, whether it happens in emission or absorption, correspond energy, wavelength, and frequency. Of all these photons, only the green one will have that specific energy. Allow electron to move from lower to higher. Gain the energy to move from lower level to higher level. More of what we get from astronomical data. Emitted certain energy, is certain wavelength and frequency, all we get is the spikes, thus color.