Supernovae in a sentence

They had thought about searching for supernovae, but since supernovae are such rare events, they didn’t mention it in their proposal.

Gamma rays from these supernovae could have boosted levels of nitrogen oxides, which became trapped in the ice. citation Type Ia supernovae are thought to be potentially the most dangerous if they occur close enough to the Earth.

The nature of ultra-stripped supernovae can be both iron core-collapse and electron capture supernovae, depending on the mass of the collapsing core.

Type II Light curves are used to classify type II-P and type II-L supernovae The supernovae of Type II can also be sub-divided based on their spectra.

His particular interest is in novae and supernovae, and has been awarded by the BAA with the Walter Goodacre Medal - the highest honour the association awards - and honoured by the Royal Astronomical Society.

If the first stars are born as a multiple stellar system rather than as an isolated single stars, elements ejected by the supernovae are mixed together and incorporated into the next generation of stars.

These heavy elements are what cosmic dust is made of, and it is, therefore, difficult to explain the origins of the dust without attributing some of it to supernovae.

This will give astronomers deeper insight into short-lived astronomical phenomena such as supernovae, the huge explosions that mark the end of a massive star's life.

And that this could potentially be from massive exploding stars known as supernovae.

As a result, the research team has been able to identify magnified supernovae and even very highly magnified individual stars.

Even after supernovae fade to non-observable levels, it is still interesting to study the environments where they occurred.

As such, they say that the research casts doubt on the very existence of dark energy, because the major evidence pointing to its existence relies on these supernovae all having a predictable brightness.

What is the ‘kill zone’ for supernovae?

Astronomers have used this standard property to measure the expansion of the universe and found the more distant supernovae were less bright than expected.

They are also monitoring supernovae that last for many years, with multiple peaks and potentially multiple explosions.

Type Ia supernovae are thought to originate from the thermonuclear explosion of a white dwarf star, the dead core left over by a Sun-like star after it exhausts its nuclear fuel.

Adding the prefix "super-" distinguishes supernovae from ordinary novae, which are far less luminous.

A few percent of the Type Ic supernovae are associated with gamma-ray bursts (GRB), though it is also believed that any hydrogen-stripped Type Ib or Ic supernova could produce a GRB, depending on the geometry of the explosion.

Although the energy that disrupts each type of supernovae is delivered promptly, the light curves are mostly dominated by subsequent radioactive heating of the rapidly expanding ejecta.

Ancient astronomical records of phenomena like supernovae and comets are sometimes used in modern astronomical studies.