Sentences with phrase «how galaxy structure»

«Not only will we learn about the formation of the black holes, but these new data from Hubble help us connect globular clusters to galaxies, providing information on one of the most important unsolved problems in astronomy today: how galaxy structure forms in the universe,» adds Michael Rich of the University of California, Los Angeles (UCLA).

Not exact matches

Simulations of how large - scale cosmic structures form suggest that galaxies are connected by a vast network of dark matter, the evasive substance that makes up most of the universe's matter but interacts with regular matter only via gravity (SN Online: 10/11/17).

Minchin views this dark galaxy not as an anomaly but as perhaps a crucially important piece of evidence confirming current theories about how orderly structures — including bright galaxies like our own — emerged from the formlessness of the Big Bang.

Astronomers would dearly have liked to get a glimpse of such structures to find out more about how galaxies were born.

This small stellar gathering gives astronomers clues about how these stars form and evolve — as well as giving hints about the structure of our galaxy's pinwheeling arms.

«For the first time, we are not only visualizing the detailed structure of our Local Supercluster of galaxies but we are seeing how the structure developed over the history of the universe.

Several ground - based microwave telescopes, such as the South Pole Telescope, are tracking how the structure of very distant galaxy clusters grew in the early Universe under the influence of gravity.

Specifically, they found that the value of the fine - structure constant — which determines how the galaxies» light should appear — is one thousandth of a percent bigger today than it was 10 billion years ago.

Supercomputer simulations model how galaxies and galactic clusters grow in long filamentary structures known as the cosmic web.

«This goes a long way toward showing that many of our ideas of how galaxies form and how structures form over the history of the universe are pretty much correct,» he says.

Simulations of how cosmic structures form suggest that most galaxies clump along dense filaments of dark matter, which are separated by vast cosmic voids.

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.

Our research program started with galaxies: Why are there so many different types, what are their histories, and how did we get the structures we see today — spiral, elliptical, and so forth?

The survey's researchers analyzed light from 26 million galaxies to study how structures in the universe have changed over the past 7 billion years — half the age of the universe.

More than that, the 3D clustering of the galaxies lets us calculate the gravitational field between them, testing how cosmic structure grew over time.

«This newly discovered analogy has the potential to be a significant step forward in our understanding of turbulent flows in free - surface vortices and to provide insights into diverse areas of study ranging from civil engineering hydraulic structures to weather systems in the atmosphere and even extending to the details of how galaxies rotate around the black holes at their centres,» Dr Richard Sherlock, a lecturer in Physics at IT Sligo, said.

This would show the structure of the so - called «cosmic web» that galaxies are embedded inside, and how chemically enriched gases flow in and out of a galaxy to fuel star formation.

«If we can measure how much oxygen is in a galaxy, it will tell us about all these processes,» said Shapley, who, along with Sanders, is interested in learning how galaxies form and evolve, why galaxies have different structures, and how galaxies exchange material with their intergalactic environments.

How did those modest galaxies grow into the magnificent structures we see around us today?

«It is remarkable how the environment on the enormous cosmic scales seen in the dark matter structures can influence the properties of individual stars and galaxies - both the maturity of the stellar populations and the progressive «downsizing» of star formation to smaller galaxies is clearly dependent on the dark matter environment,» said Scoville.

The new maps of dark matter and galaxies will provide critical observational underpinnings to future theories for how structure formed in the evolving universe under the relentless pull of gravity.

She explains: «I am mostly interested in how structure forms and how galaxies form, and how we can use that knowledge to understand the «dark side» of the Universe... how what we see in telescopes is connected to the dark matter of the Universe.»