Sentences with phrase «shock breakout»
"Shock breakout" refers to the sudden and explosive release of energy that occurs when an object, usually a star, goes through a rapid and intense change. It is like a powerful burst of light and heat that happens when something undergoes a dramatic transformation. Full definition
«Amateur astronomer captures rare first light from massive exploding star: First observation of optical light from shock breakout in a supernova explosion.»
sciencedaily.com
To date, no one has been able to capture the «first optical light» from a supernova, since stars explode seemingly at random in the sky, and the light from shock breakout is fleeting.
Artist's conception of evolution of metal - poor and «metal - rich» supernovae at different phases and simulated light curves from shock breakout (ultraviolet) through plateau (red, green and blue colors) to exponential decay.
During tests of a new camera, Víctor Buso captured images of a distant galaxy before and after the supernova's «shock breakout» — when a supersonic pressure wave from the exploding core of the star hits and heats gas at the star's surface to a very high temperature, causing it to emit light and rapidly brighten.
For the first time, astronomers have captured in visible light an exploding star's «shock breakout» — an extremely brief window into what triggers one type of supernova.
The shock breakout occurred within the star KSN2011d, 1.2 billion light - years away and roughly 500 times the size of our sun.
When the collapsing core reaches the star's surface, it releases a burst of light, called a shock breakout, that lasts 20 minutes.
Shock breakout is followed by a long «plateau» phase of almost constant luminosity lasting several months, before a slow exponential decay.
Both shock breakout and «plateau» phases are shorter, bluer, and fainter for metal - poor supernova in comparison with «metal - rich» supernova.
Bersten and her colleagues analyzed the light from the supernova and found that it matches models of the first phase of a supernova called the shock breakout phase, in which a shock wave from a massive star's collapse ricochets back from the star's core and pushes stellar material outward.
The shock breakout itself lasts only about 20 minutes, so catching the flash of energy is an investigative milestone for astronomers.
For the first time, a «shock breakout» in an exploding supergiant star was discovered at visible wavelengths.
The brilliant flash of an exploding star's shockwave — what astronomers call the «shock breakout» — is illustrated in this video animation.
When the shockwave reaches the surface of the star, a bright flash of light, called a «shock breakout,» is predicted.
For the first time, a «shock breakout» in an exploding supergiant star has been discovered at visible wavelengths.
When the shock wave reaches the surface of the star, a bright flash of light, called a «shock breakout,» is predicted.
The Kepler Extra-Galactic Survey team, led by team member Peter Garnavich, an astrophysics professor at the University of Notre Dame in Indiana, spotted this shock breakout in 2011 Kepler data from a supernova called KSN 2011d, an explosion from a star roughly 500 times the size of our Sun.
These supernovae have a characteristic shockwave called the «shock breakout,» which was captured for the first time in optical light by Kepler.
Surprisingly, the team did not find a shock breakout in a smaller type II supernova called KSN 2011a, whose star was 300 times the size of the Sun — but instead found the supernova nestled in a layer of dust, suggesting that there is diversity in type II stellar explosions, too.