Sentences with phrase «from dwarf galaxy»

Breakthrough Listen project observes 15 fast radio bursts coming from dwarf galaxy 3 billion light - years away.

Kapteyn's Star and its planets likely come from a dwarf galaxy now merged with the Milky Way.

We still need that extra mass to explain why galaxies hold together — and to set in motion the processes that led to many structures in the universe, from dwarf galaxies to superclusters.

Seeing the same excess gamma - ray signal elsewhere in the sky, such as from dwarf galaxies, would further support the dark matter interpretation, says Kevork Abazajian at the University of California, Irvine.

Some stars in the spheroid are the remains of galactic cannibalism, having come from dwarf galaxies that fell into the spiral galaxy, were ripped apart by powerful tidal forces, and were incorporated into the larger galaxy's structure.

These range in size from dwarf galaxies with a few billion stars to giant galaxies with 100 trillion stars.

Not exact matches

[Sukanya Chakrabarti et al, Clustered Cepheid Variables 90 kiloparsec from the Galactic Center] Dwarf galaxies like this one are thought to contain more dark matter than regular matter.

An international team of astronomers has determined that Centaurus A, a massive elliptical galaxy 13 million light - years from Earth, is accompanied by a number of dwarf satellite galaxies orbiting the main body in a narrow disk.

RIGHT ROUND Dwarf galaxies near the giant galaxy Centaurus A, shown here in a composite of images from three different telescopes, seem to orbit it in an unexpectedly organized loop.

Kelly Holley - Bockelmann from Vanderbilt University in Tennessee and colleagues think that long ago a dwarf galaxy dived into the Milky Way.

Researchers from the Dark Cosmology Centre at the Niels Bohr Institute, among others, have analysed measurements of the stars in the dwarf galaxy Andromeda II and made a surprising discovery.

Instead, the bursts could come from a young neutron star orbiting the dwarf galaxy's dominant black hole, which probably has between 10,000 and 1 million times the mass of the sun, he says.

If black hole seeds come from stars, the process should have given every dwarf galaxy its own supermassive black hole.

Researchers from the Niels Bohr Institute, among others, have detected a stream of stars in one of the Andromeda Galaxy's outer satellite galaxies, a dwarf galaxy called Andromeda II.

Stars yanked from the Sagittarius dwarf galaxy (red) loop around the Milky Way and dive near our sun (yellow dot).

According to the team's models, so many stars have been ripped from the Sagittarius dwarf in the last 2 billion years that the little galaxy — 10,000 times less massive than the Milky Way — is on its last legs.

But M dwarfs are quite different from the sun, and their planets might be rough places to eke out a living — «the low - rent district of the galaxy,» says Victoria Meadows, an astrophysicist at the University of Washington in Seattle.

New theoretical modeling work from Andrew Wetzel, who holds a joint fellowship between Carnegie and Caltech, offers the most accurate predictions to date about the dwarf galaxies in the Milky Way's neighborhood.

This image, taken by accomplished astrophotographer R. Jay Gabany in collaboration with David Martinez - Delgado from the Instituto de Astrofísica de Canarias (IAC) and his international team, shows for the first time in intricate detail the aftermath of a large galaxy destroying and consuming its dwarf neighbor.

That happens if it has a companion star, as most stars in the galaxy do, and the white dwarf orbits it closely enough to steal material from it.

Typical galaxies range from dwarfs with as few as ten million stars up to giants with one trillion stars, all orbiting a common center of mass.

Smudges that look like clouds are our neighbouring dwarf galaxies, the Small and Large Magellanic Clouds, visible only from the southern hemisphere.

But when Abazajian and his student Ryan Keeley analysed data from nearby dwarf galaxies released by the Fermi telescope this year, they found no such signal there.

But the new discoveries include almost every kind of galaxy, from shapeless dwarfs to disc - like giants three times the size of our Galaxy.

One of the rare and brief bursts of cosmic radio waves that have puzzled astronomers since they were first detected nearly 10 years ago has finally been tied to a source: an older dwarf galaxy more than 3 billion light years from Earth.

Even its backers admit it would take a decade to grind all the mirrors, but once built, it could pick out brown dwarfs in neighboring galaxies or supernova explosions from 10 billion light - years away.

Dwarf galaxies, amorphous blobs of only tens of millions of stars, were cranking out nearly a third of the new stars in the universe from about 8 billion to 10 billion years ago, according to new research posted June 17 on arXiv.org.

They realized it must be leftovers from a pulverized dwarf galaxy, which they called the Sagittarius dwarf.

Two of them — a more extensive survey of luminous galaxies, intended to tease out more information about galaxy clustering on large scales, and a more sensitive search for the cannibalized remnants of dwarf galaxies — will extend recent findings from the second Sloan survey.

Computer models show that previous passes transformed Sagittarius from a dwarf spiral galaxy into a spherical blob.

Hence, isolated compact elliptical and isolated quiescent dwarf galaxies are tidally stripped systems that ran away from their hosts.

The object, dubbed SDSS1133, lies about 2600 light - years from the center of a dwarf galaxy known as Markarian 177 (both of which lie within the bowl of the Big Dipper, a familiar star pattern in the constellation Ursa Major).

«Many of the stars in the bridge appear to have been removed from the SMC in the most recent interaction, some 200 million years ago, when the dwarf galaxies passed relatively close by each other.

The dwarf galaxy's outsize influence stems from the assumption that although Sagittarius today is a mere fraction of the Milky Way's mass, it should once have rested inside a hefty cocoon of dark matter, known as a dark matter halo, some 100 billion times the mass of the sun.

But when Kevork Abazajian at the University of California, Irvine, and colleagues analysed data from nearby dwarf galaxies, they found no such signal (arxiv.org/abs/1510.06424).

From this we can extrapolate that these circular planes of dancing dwarfs are universal, seen in about 50 percent of galaxies,» said Professor Geraint Lewis.

Simulations suggest SECCO 1 was stripped from a trio of interacting dwarf galaxies, the researchers report online at arXiv.org on February 16.

Fast radio bursts are brief, bright pulses of radio emission from distant but so far unknown sources, and FRB 121102 is the only one known to repeat: more than 200 high - energy bursts have been observed coming from this source, which is located in a dwarf galaxy about 3 billion light years from Earth.

New research by Harvard astronomers shows that half of those stars might have been ripped from another galaxy: the Sagittarius dwarf.

Irregular dwarf galaxies like Barnard's get their bloblike forms from close encounters with other galaxies.

Rather than studying bright stars, the two students used Hubble Space Telescope data from 274 dwarf stars, which were serendipitously observed by the orbiting observatory while it was looking for the most distant galaxies in the early Universe.

Moreover, five of the 11 most distant stars in our galaxy have positions and velocities that match what you would expect of stars stripped from the Sagittarius dwarf.

This is the Sculptor dwarf galaxy composed from data from the Digitized Sky Survey 2, courtesy of ESO / Digitized Sky Survey 2.

It's still unknown what causes these barrages of radio waves, but at least we now know where one of them comes from — a dwarf galaxy billions of light years away.

From the SONYC survey, Scholz and team leader Koraljka Muzic, estimate that our galaxy, the Milky Way, has a minimum of between 25 and 100 billion brown dwarfs.

Dwarf galaxies are thought to be captured by larger galaxies into random orbits based on the direction they came from.

It does appear clear that globular clusters are significantly different from dwarf elliptical galaxies and were formed as part of the star formation of the parent galaxy rather than as a separate galaxy.

The dwarf galaxy also is of interest because it provides clues to how the early simple universe became re-ionized by early star formation, moving it from the so - called cosmic Dark Ages of neutral gases to the development of the complexly structured universe now in existence, where the gas between galaxies is ionized.

This would prevent dwarf galaxies from forming in the first place.

Fu has participated in the Carnegie Summer Undergraduate Research program over the past two summers, working with staff astronomer Josh Simon studying dwarf galaxies and streams of stars surrounding our Milky Way using data from the Sloan Digital Sky Survey.