News tagged with white dwarfs

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Hubble sees the remains of a star gone supernova

(Phys.org) —These delicate wisps of gas make up an object known as SNR B0519-69.0, or SNR 0519 for short. The thin, blood-red shells are actually the remnants from when an unstable progenitor star exploded ...

May 03, 2013
5 / 5 (4) 0 | with audio podcast

Key link found in Cosmic Distance Ladder

(Phys.org) —When observing the bright explosion of a White Dwarf star in our neighbouring galaxy last year, researchers from The Australian National University collected the largest ever data set on what ...

Jun 20, 2013
4.4 / 5 (20) 0 | with audio podcast

Breakthrough study models dying stars in a lab

A team of scientists has successfully reproduced conditions in one of the most hostile environments in the galaxy, enabling them to find out more about how atoms behave in these extreme settings.

Feb 14, 2013
4.3 / 5 (6) 2 | with audio podcast

Hubble reveals the ring nebula's true shape

(Phys.org) —The Ring Nebula's distinctive shape makes it a popular illustration for astronomy books. But new observations by NASA's Hubble Space Telescope of the glowing gas shroud around an old, dying, ...

May 23, 2013
5 / 5 (12) 6 | with audio podcast

Astronomers discover light echo from supernova

(Phys.org) —Astronomers have discovered light echoing off material surrounding a recent supernova explosion, SN 2009ig. The dust and gas that are reflecting the light are so close to the eruption center ...

Jun 04, 2013
4.3 / 5 (7) 11 | with audio podcast

Chandra Reveals Origin of Key Cosmic Explosions

(PhysOrg.com) -- New findings from NASA's Chandra X-ray Observatory have provided a major advance in understanding a type of supernova critical for studying the dark energy that astronomers think pervades ...

Feb 17, 2010
5 / 5 (10) 6 | with audio podcast

One supernova type, two different sources

The exploding stars known as Type Ia supernovae serve an important role in measuring the universe, and were used to discover the existence of dark energy. They're bright enough to see across large distances, ...

May 07, 2012
5 / 5 (4) 21 | with audio podcast