Sentences with phrase «stellar remnants»

Perhaps the dark clusters contain black holes, or other dark stellar remnants in their cores?

Unfortunately, the JWST will only be powerful enough to detect such pollutants on Earth - like planets orbiting white dwarf stars, which are incredibly dense stellar remnants of Sun - like mass and Earth - like size.

The favourite of the two main explanations was that the positron excess could come from fast - spinning stellar remnants known as pulsars.

This is the brightest pulsar — a dense stellar remnant left over from a supernova explosion — ever recorded.

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.

Including Sol itself, only 12 stellar objects (including the white dwarf, stellar remnant known as Sirius B) and three substellar, brown dwarfs are believed to be located within 10 light - years (ly) of Sol, as of April 25, 2014.

He uses a variety of computational and observational tools, including 1D stellar evolution, 3D magneto - hydrodynamics calculations of stellar interiors, the study and observation of wave propagation inside stars (asteroseismology), the observations of stellar populations, stellar explosions and the gravitational wave emission from the mergers of compact stellar remnants.

They initially thought the blasts, lasting just a few milliseconds, came from some cataclysmic event such as the merger of two neutron stars — superdense stellar remnants — to form a black hole.

Little is known about the origins of such wayward stellar remnants.

After decades of searching, astronomers have confirmed that a gluttonous stellar remnant that glows brightly in X-rays can create high - energy gamma rays as well.

A firmer line of evidence for supernovae in Carina came from another researcher's 2009 identification of an ultradense stellar remnant called a neutron star there.

«This compact little stellar remnant is a real powerhouse.

These paired stellar remnants supply exquisite confirmations of general relativity.

This discovery was a surprise to the astronomical community, which had expected planets around «normal» stars and not around ultra-dense stellar remnants.

As time progresses after the formation of a cluster, the massive stars, which evolve the fastest, gradually disappear from the cluster, becoming white dwarf stars or other underluminous stellar remnants.

Star A is a white dwarf stellar remnant of spectral and luminosity type DA2 / VII.

Pulsars — rapidly spinning stellar remnants that cram the mass of the sun into a ball 10 miles across — are natural physics labs.

Einstein said it couldn't be done, but astrophysicists have used his prediction that gravity bends light to directly measure the mass of a dense stellar remnant

A precision measurement of a high - mass neutron star rules out some exotic models for the ultradense stellar remnants

Eventually, in 10 - 100 quintillion years, these stellar remnants will either have escaped their galaxy's pull, or will have spiraled into the supermassive black hole at the center.

«This opens a new window on this vast population of stellar remnants that we know are out there but of which we have seen only a tiny fraction,» he says.

Yet these stellar remnants should contain no more than a few hundred solar masses.

«The uncanny consistency of this stellar remnant offers intriguing evidence that the fundamental force of gravity — the big «G» of physics — remains rock - solid throughout space,» said Weiwei Zhu, an astronomer formerly with the University of British Columbia in Canada and lead author on a study accepted for publication in the Astrophysical Journal.

Light from the stellar remnant, a neutron star located about 400 light - years away, is polarized, meaning that its electromagnetic waves are oriented preferentially in a particular direction like light that reflects off the surface of water (SN: 7/8/06, p. 24).

The gamma rays could be generated when charged particles are accelerated by strong magnetic fields around the stellar remnant.

Some theorists have attributed this strange excess to nearby pulsars — fast - spinning stellar remnants — but Hooper suspects that it comes from interactions between dark particles as they whip around the Milky Way.

Cigan, an expert on these stellar remnants, says: «This is only the second such study of phosphorus that has been made.

The stellar remnant has cooled, become dimmer over time, and is presumed to be relatively old (perhaps around nine billion years like its binary companions).

The white dwarf is the stellar remnant of a sun - like star that has exhausted its hydrogen fuel and has shed its outer layers of gas to gravitationally collapse to a compact object.

Even for these more massive stars, however, if the residual mass in the core is less than 1.4 solar masses (the Chandrasekhar limit), the stellar remnant will become a white dwarf.

Today, only 12 stars (including one stellar remnant) are known to be located within 10 light - years of Sol.

Sirius is composed of a main - sequence star and a white dwarf stellar remnant.

The companion star, is a white dwarf, stellar remnant and is so dim that it can not be perceived with the naked eye.

The star may have an unseen, close spectroscopic companion, which could be a very dim red dwarf star or a white dwarf stellar remnant (more below).

Stellar remnants are objects associated with the death of stars.

Aternatively, infalling matter on a white dwarf star can cause it to explode as a supernova of type Ia; these events do probably not leave a stellar remnant.

I was thrilled to find the Stellar Remnants Dress ($ 178) in - store so I could give it a whirl.

A planet is an astronomical body orbiting a star or stellar remnant that.