White dwarfs are the glowing lumps of carbon left over after stars have used up all their fuel. They are hot, dense and small, typically with the mass of the Sun packed into the volume of the Earth. The structure of these objects is complex. Astronomers cannot see the glowing carbon embers because white dwarfs are always surrounded by a thin, dense layer of gas, drawn in by the star’s intense gravity. It is this gas that glows with an intense white light at temperatures usually between 8000K and 16,000K–by comparison the Sun’s atmosphere is about 6000K. Read the full story at Technology Review.
White Dwarf Atmosphere Recreated In The Lab
Author: Shelly Palmer
Shelly Palmer is Fox 5 New York's On-air Tech Expert (WNYW-TV) and the host of Fox Television's monthly show Shelly Palmer Digital Living. He also hosts United Stations Radio Network's, Shelly Palmer Digital Living Daily, a daily syndicated radio report that features insightful commentary and a unique insiders take on the biggest stories in technology, media, and entertainment. He is Managing Director of Advanced Media Ventures Group, LLC an industry-leading advisory and business development firm and a member of the Executive Committee of the National Academy of Television Arts & Sciences (the organization that bestows the coveted Emmy® Awards).