Sentences with phrase «types of supernova explosions»

Although this looks like a single nebula, NSF's Gemini South Observatory revealed it is actually two separate gas and dust clouds formed by different types of supernova explosions.

Astrophysicists think that this process is what powers a common type of supernova explosion, known as Type II.

Not exact matches

Pulsars are a type of neutron star that are born in supernova explosions when massive stars collapse.

This allowed the international team to determine that the explosion was a Type IIb supernova: the explosion of a massive star that had previously lost most of its hydrogen envelope, a species of exploding star first observationally identified by Filippenko in 1987.

Over the past decade, researchers have carefully calibrated the intrinsic luminosity of type Ia supernovae, so the distance to one of these explosions can be determined from its apparent brightness.

The explosion, dubbed SN2014J, belongs to a class of supernovas called type Ia.

Such grains originated more than 4.6 billion years ago in the ashes of Type II supernovae, typified here (upper left) by a Hubble Space Telescope image of the Crab Nebula, the remnant of a supernova explosion in 1054.

Last year astronomers discovered evidence of another unexpectedly uniform kind of variability among gamma - ray bursts, stellar explosions that are even more luminous than Type Ia supernovas.

Most such explosions are thought to have an identical intrinsic brightness, which Sandage and his colleagues have found by measuring the distances of two nearby galaxies that have spawned type Ia supernovae.

Rob Beswick, a co-author of the research paper from the University of Manchester's Jodrell Bank Centre for Astrophysics added: «The explosion of a Type Ia supernova is a rare event in the nearby Universe.

Known as 2014J, this was a Type la supernova caused by the explosion of a white dwarf star, the inner core of star once it has run out of nuclear fuel and ejected its outer layers.

Type Iax supernovae may be caused by the partial destruction of a white dwarf star in such an explosion.

Type Ia supernovae are caused by the complete destruction of a white dwarf star in a thermonuclear explosion.

Type Ic supernovae, the explosions after the core collapse of massive stars that have previously lost their hydrogen and helium envelopes, are particularly interesting because of their link with long - duration gamma ray bursts.

These profiles are different from those of known type Ic supernovae, with or without a gamma ray burst, and they can be understood if SN 2003jd was an aspherical axisymmetric explosion viewed from near the equatorial plane.

But astronomers may have pulled off an equally challenging feat: detecting the glimmer of a supernova explosion in the fading afterglow of a titanic gamma ray burst (GRB)-- one of the biggest type of explosions in all the cosmos.

Although all will eventually go supernova, the type of explosion they will generate is unknown.

Neither study searched for the stars responsible for so - called type Ia supernovae, which are explosions of white dwarf stars that have grown overweight by feasting on material from a companion star.

Observations of the explosions of white dwarf stars in binary systems, so - called Type Ia supernovae, in the 1990s then led scientists to the conclusion that a third component, dark energy, made up 68 % of the cosmos, and is responsible for driving an acceleration in the expansion of the universe.

Type Ia supernovae are explosions that can be seen even in far - away galaxies and help astronomers study the large - scale structure of the Universe.

The standard path to type Ia supernovae, the study's authors wrote, should have produced 30 to 50 times the x-rays observed, indicating that accreting white dwarfs account for less than 5 percent of the explosions.

A type Ia supernova arises from the explosion of an ultradense stellar remnant known as a white dwarf, but it is less than clear how the white dwarf comes to ignite in a thermonuclear blast.

A group of astronomers used Hubble to study the remnant of the Type Ia supernova explosion SNR 0509 - 68.7 — also known as N103B (seen at the top).

If the stars merge with one another it would ultimately lead to a supernova explosion of type Ia.

The mass of the merged star will be enough to create a thermonuclear explosion, creating a type Ia supernova, the researchers said.

Before 1987, astronomers believed that only red supergiants would explode as supernovae, but this observation proved that other types of evolved stars can produce these explosions too.

late stages of stellar evolution: white dwarfs, isolated and in interacting binary systems, stellar explosions on white dwarfs (novae and type Ia supernovae).

And, according to Laura Spitler, namesake of the Spitler burst and a researcher at the Max Planck Institute for Radio Astronomy, in Bonn, Germany, magnetars generally form from stellar explosions called Type - I superluminous supernovas.

A more powerful type of X-ray source is a supernova remnant, the gaseous shell ejected during the violent explosion of a dying star.

Thus, US 708 could have originally resided in an ultra compact binary system, transferring helium to a massive white dwarf companion, ultimately triggering a thermonuclear explosion of a type Ia supernova.

Astronomers have discovered evidence that could help solve a long standing dispute over the origin of Type Ia supernovae, by observing the youngest example of the titanic explosions located to date.

Type Ia supernovae are fairly rare in the nearby Universe and represent the explosion of at least one white dwarf star in a binary system.

For many years, astronomers have known two types - «supermassive» black holes at the centers of large galaxies and the so - called «stellar - mass» black holes that result when a star about 10 times the Sun's mass ends its life in a supernova explosion.

The observations indicate that iPTF 13dqy was a regular type II supernova; thus, the finding that the probable red supergiant progenitor of this common explosion ejected material at a highly elevated rate just prior to its demise suggests that pre-supernova instabilities may be common among exploding massive stars.

They applied a new technique that could have implications for understanding other Type Ia supernovae, a class of stellar explosions that scientists use to determine the expansion rate of the universe.

These explosions, called type 2 supernovas, mark the death throes of a star having a mass of between eight and about 50 times that of our sun.

In Star Death and The Pain Body, the exploration is the end stage of a star's life, and the possibility of two types of death — explosion or implosion, with the two possible outcomes — supernova or black hole.