AST 101 Study Guide - Midterm Guide: Giant Star, White Dwarf, Red Giant
Document Summary
Stars: sirius b is a white dwarf star. They are high temperature, low luminosity starts. Around 1 solar unit luminosity and between 10,000 and 5,000 kelvin. About 5,000 kelvin with a luminosity of 1 solar unit. The gas cloud will keep spinning and as the cloud gets smaller it will get faster. Wants to flatten: you are looking at the stars in the constellation of orion from your backyard. Yes, by their colors, blue stars are hotter than red stars: red giant stars have greater than 10,000 times the luminosity of our yellow sun. Because it is larger: we plot the thermal spectra of two stars. Because they are too small and they do not get hot enough. 1. 4 solar masses: in a high mass main sequence star the dominant fusion cycle is the cno cycle. It is a reaction involving carbon, nitrogen, and oxygen that fuses hydrogen into helium and releases energy.
