AS102 Study Guide - Final Guide: Orion Nebula, Bok Globule, Star Formation
Document Summary
A star is born when its core temperature exceeds. Be sure to check out the double page spread at the end of chapter 7 entitled star formation in the. Don"t worry too much about bok globules or herbig-haro objects. T tauri stars are a special type of protostar. In some cases, and at later stages in high-mass stars, another kind of pressure radiation pressure pressure due to escaping photons becomes important. Interestingly, gravity starts it all in the first place. When the beginnings of the star accreted in the midst of a nebula of gas and dust, the seed started attracting smaller flakes of condensed matter, thereby slowly but surely growing in size. Naturally, the process resulted in the conversion of gravitational potential energy into kinetic energy and then into thermal energy (which is really energy of motion anyway) and the temperature of the core began to increase. The lifeline of any star depends critically on its mass.
