Sentences with phrase «more massive a star»

Lead author Fabian Schneider, a Hintze Research Fellow in the University of Oxford's Department of Physics, said: «We were astonished when we realised that 30 Doradus has formed many more massive stars than expected.»

Strangely, though, none of those stars was bigger than about 17 solar masses, even though much more massive stars abound and should also be dying as supernovae.

In the first stage of this process, the more massive star of the pair begins to run out of fuel, transferring its outer layers to its less massive companion — which is destined to become the magnetar — causing it to rotate more and more quickly.

But the more massive stars evolve faster than lighter ones do, and so they die sooner.

ALMA discovered that — contrary to expectations — the more massive stars in this region retain considerable stores of carbon monoxide gas.

An artist's impression shows extrasolar planet HD 189733b, where scientists say they've found water vapor, closely orbiting its much more massive star.

He speculates that these more massive stars are collapsing to form black holes instead of neutron stars.

Elements heavier than hydrogen and helium were more abundant later in the star - forming boom as more massive stars ended their lives early and enriched the galaxy with material that served as the building blocks of planets and even life on Earth.

The more massive a star, the more material it sheds in high - speed winds.

The more massive the star, the longer the brightening event.

(Theoretically, more massive stars would burn faster.)

This is a counter-intuitive result, as more massive stars have more fuel to burn and might be expected to last longer.

In more massive stars, this cycle of events can continue, with the stellar core reaching ever - higher temperatures and fusing increasingly heavy nuclei, until the star eventually experiences a supernova explosion (see below Evolution of high - mass stars).

In general, the more massive the star, the shorter its time on the main sequence.

[16] More massive stars can explode as a Type II supernova.

«The neutron star, which is the remnant left over from the supernova explosion of an even more massive star, either came from the Milky Way's disk, or from a globular cluster at a considerable distance from the disk,» said Rodrigues.

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.

Their low metallicity allows these tiny galaxies to produce more massive stars, and, probably because massive stars have stronger magnetic fields, their explosive deaths can leave behind highly magnetized neutron stars, or magnetars.

The other is a pulsar, an ultra-dense neutron star left behind when an even more massive star underwent a supernova explosion.

«Most of the disks were found to display rings, a phenomenon is known from previous observations of more massive stars,» says Sascha Quanz of NCCR PlanetS at ETH Zurich.

That's where our own sun gets off the fusion train, but more massive stars can keep on chugging along, climbing up the periodic table in ever more intense and short - lived reaction phases, all the way up to nickel and iron.

More massive stars are more likely to host planets more massive than Saturn, but this correlation may not exist for smaller planets.

More massive stars live shorter lives; they turn into white dwarfs (or neutron stars or black holes) sooner.

While other, more massive stars only burn through the hydrogen at their core before coming to the end of their lifetimes, red dwarfs consume all of their hydrogen, in and out of their core.

The youngest stars in the galactic region surrounding around the Solar Neighborhood are associated with «subgroup B1» of the Pleiades (M 45) stellar moving group, and astronomers hypothesize that the more massive stars born in this group may have already exploded as 20 or so supernovae over the past 10 to 20 million years as the entire group of stars moved through a nearby region of the Local Bubble (Berghoefer and Breitschwerdt, 2002).

Not exact matches

There are more than a dozen works on view in Trump's apartment, including a series of prints by conceptual artist John Baldessari, a massive work by art - market juggernaut Christopher Wool, a small piece by the up - and - coming artist Will Boone, prints by photographer Mariah Robertson, and a small, colorful abstract painting by the young art - world star Alex Da Corte.

The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before

«NGC 1277's black hole could be many times more massive than its largest known compete tor, which is estimated but not confirmed to be between 6 billion and 37 billion solar masses in size.It makes up about 59 percent of its host galaxy's central mass — the bulge of stars at the core.

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The only positive is that it happened in the first game of the season, so a massive reality check to all the «stars» on the team, get your act together quick, be hungry for this, want this more than any other team, this is supposed to be our year but we have to earn it.

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But if the star is more than about eight times as massive as the sun, it can keep going, forging heavier elements.

Population III stars were probably more massive than stars born in the later universe, which means they could have left behind black holes as hefty as several hundred solar masses.

This large sample allowed the scientists to derive the most accurate high - mass segment of the IMF to date, and to show that massive stars are much more abundant than previously thought.

Alternative explanations posit these anomalously massive black holes grew and merged in throngs of stars called globular clusters, but that process can easily require more time than the current age of the universe.

«During the past few years our group,» says David Jones, an astrophysicist at the IAC and another of the authors on the paper, «has discovered that the planetary nebulae with the biggest discrepancies in their abundances are usually associated with binary central stars which have been through a phase with a common envelope, that is to say the process of expansion of the more massive of the two stars has meant that the other star is orbiting within its outer atmosphere, and the viscosity has brought the stars very close to one another.

Most black holes are thought to form when very massive stars — those with more than about 10 times the mass of sun — exhaust their nuclear fuel and begin to cool and therefore contract.

Or maybe, others said, the first stars were strange, short - lived and supermassive giants, far brighter and hundreds or even a thousand times more massive than our sun.

The exploding star itself had been very massive, more than 40 times the mass of the Sun.

Some of the stars still shine with a hot bluish colour, but many of the more massive ones have become red giants and glow with a rich orange hue.

One is that two heavyweight stars, each more than roughly 20 times as massive as the sun, are born, live and detonate together.

Stars many times more massive than our sun often end their lives with a super-nova, a cataclysmic explosion caused by the collapse of the star's heavy core.

Stars are born when a cloud of gas hundreds of times more massive than our Sun begins to collapse under its own gravity.