supernova

Supernovae studies have allowed scientists to see that dark energy has been impacting galaxies since as far back as nine billion years ago.

"For one, the Hubble Space Telescope has weighed in on dark energy by virtue of the measurements of supernovae, " he said.

What both groups found was that the light from distant supernovae was fainter than predicted.

Stars that are eight or more times the mass of the sun explode as supernovae at the end of their lives.

Nobel Committee awards the word that the three phenomena by studying supernovae discovered the universe's accelerating expansion.

Supernovae may be flashier , but their debris is roiling and chaotic, lacking the symmetry and intricacy of these nebulae.

Pulsars and Supernovae are shown on the sky because scientists believe they emit gravitational waves.

Pulsars are the dense cores left over after stars of a certain mass explode into supernovae.

One particular sort, though, known as type Ia supernovae, always explode with about the same energy and are therefore equally bright.

Some basic background on supernovae will make it easier to understand both stories.

Massive stars born in the merger explode in violent supernovae, leaving behind gas that glows with x-rays to be picked up by Chandra.

The Loop I Bubble was created by supernovae and stellar winds in the Scorpius- Centaurus Association, some 500 light years from the Sun.

They were using these supernovae to measure how the universe's expansion is changing with time.

Type Ia supernovae all explode with nearly the same amount of energy and therefore have almost the same intrinsic brightness.

Even so, explaining supernovae is still a major challenge for astrophysicists .

Examining as many supernovae as possible can help researchers measure how fast galaxies are moving away from one another.

Now this path to supernovae will have to be investigated in more detail.

The committee said: " they studied dozens of supernovae, and discovered that the universe is accelerated expansion. "

There is a positive observational and theoretical basis for believing that neutron stars and black holes follow as a result of supernovae.

And unlike the super-bright but brief light emitted by the explosive deaths of giant stars, called supernovae, quasars shine for eons.

For the time being, no other instrument is as vital to the hunt for distant supernovae to pin down dark energy.

Heavy elements flung out into space by supernovae end up in the rocks of planets such as the Earth.

The supernovae make the chemical elements through real alchemy, transforming one element, the (light) elements into the heavy ones.

Supernovae of this type have been observed for decades and we have learned that they are very predictable in the way they evolve.

Not just any old relics, neutron stars are the leftover cores of huge stars that exploded in supernovae.

Unlike most supernovae, this one spewed lots of elements far heavier than iron, including radioactive thorium and uranium.

THE ANCIENT SUPERNOVAE also provided new clues about dark energy, the underlying cause of the cosmic speedup.

A survey of supernovae run at the Palomar Observatory has now identified four objects that don't fit the expected pattern.

In other words, the supernovae were farther away than their redshifts indicated they should be, based on the existing model of the universe.

An open question remains whether these white dwarf mergers are the primary catalyst for Type 1a supernovae in spiral galaxies.

It's a heavy element produced in thermonuclear explosions of supernovae.

Type Ia supernovae are so luminous that they outshine their host galaxies for several weeks.

In the past few years, though, astronomers have solidified the case for cosmic acceleration by studying ever more remote supernovae.

So the calcium that is in your bones and the iron that is in your blood probably came from supernovae that exploded before the sun formed.

These objects include variable stars as well as supernovae.

By the late 1980s, a suitable standard candle had been indentified: type Ia supernovae.

Smaller light echoes have been seen around supernovae.

I would like to use seven "ONE MORE BOTTLE" to exchange a character-outbreak like supernovae .

Although the observation didn't produce any huge surprises, he says, it should aid future studies on the origins of supernovae .

a number of supernovae and one nova in extragalactic systems.

Pinpointing supernovae in the faraway universe is similar to watching fireflies in your back yard.

Bob Kirshner, of Harvard University, explains why supernovae are important for all of us.

The research teams raced to map the Universe by locating the most distant supernovae.

The arrows in the top row of images point to the supernovae.

We will talk about the high mass stars and supernovae in the next chapters.

IceCube's task is to watch for energetic neutrinos emanating from violent cosmic events such as supernovae and gamma-ray bursts.

It comes from observations of supernovae and other very distant sources.

The infrared brightness of the galaxies allowed the team to estimate how many supernovae should occur.

The gamma rays HESS sees are mostly by-products of extremely violent astrophysical events such as supernovae and flaring black holes.

By comparison, the average rate for supernovae in the Milky Way is about 1 per century.

They then explode, as supernovae.

There are a number of kinds of stellar explosions that can produce supernovae -- which are short-lived, extra bright stellar events.

This is a list of WWW pages related to supernovae and supernovae remnants.

They originate from various events (supernovae and so on) within the Milky Way galaxy that is home to the Earth.

Observationally , these events come in a wider variety than thermonuclear supernovae do: some have hydrogen, some do not;

for the discovery of the accelerating expansion of the Universe through observations of distant supernovae

Gravitational Radiation, Luminous Black Holes and Gamma-Ray Burst Supernovae

The Explosion Models and Progenitors of Type Ia Supernovae

Application of Type Ia Supernovae to Cosmology

The Effect of Strange Quark Phase Transition on the Shock Energy of Type II Supernovae

We will talk about supernovae in