|
Miscellaneous
According to current theories of star formation, cores of molecular clouds (regions of especially high density) become gravitationally unstable, fragment and begin to collapse (sometimes, shockwaves from supernovae will trigger star formation in nearby gas clouds). Part of the gravitational energy lost in this collapse is radiated in the infrared, with the remainder increasing the temperature of the core of the object.
Business - List of business/finance/loan/mortgage resources
more 1 2 3 4 5
Computers - List of computer hardware/software/peripheral resources
more 1 2 3 4 5
Internet - List of webhosting/webdesign/internet marketing resources
more 1 2 3 4 5
Software - List of software resources
more 1 2 3 4 5
Web Design - List of web design/development resources
more 1 2 3 4 5
Web Hosting - List of web hosting resources
more 1 2 3 4 5
Web Promotion - List of search engine optimization/internet marketing resources
more 1 2 3 4 5
Web Resources - List of other web resources
more 1 2 3 4 5
Recreation - List of travel/hotel/cruise resources
more 1 2 3 4 5
Casino - List of online gambling/poker/blackjack/roulette resources
more 1 2 3 4 5
Health - List of online pharmacy/hospital/health resources
more 1 2 3 4 5
Shopping - List of online shopping/gift resources
more 1 2 3 4 5
Miscellaneous - List of all other resources not stated above
more 1 2 3 4 5
The accretion of material happens partially through a circumstellar disc. When the density and temperature are high enough, deuterium fusion ignition occurs, and the outward pressure of the resultant radiation slows (but does not stop) the collapse. Material comprising the cloud continues to "rain" onto the protostar. In this stage bipolar flows are produced, probably an effect of the angular momentum of the infalling material. Finally, hydrogen begins to fuse in the core of the star, and the rest of the enveloping material is cleared away.
|
