Sentences with phrase «by distant galaxies»

In addition, the gravitational lensing of quasars by distant galaxies is only possible if the lensed quasars are farther away than the galaxy bending the quasar's light.

«Not only did we detect radio signals emitted by distant galaxies when the Universe was three billion years younger, but their gas reservoirs turned out to be unexpectedly large, about 10 times larger than the mass of hydrogen in our Milky Way.

A radical new model of gravity seems to account for bending of light by distant galaxies without invoking extra unseen mass whose identity remains mysterious

Measuring the atomic hydrogen signal emitted by distant galaxies is one of the main scientific drivers behind the billion dollar Square Kilometre Array (SKA) project, for which technology demonstrators like the Australian SKA Pathfinder are under construction.

They match Einstein's explanations of everything from the bending of light by distant galaxies to the distortion of time in those gps satellites.

Story number 2: Astronomers have detected an energetic outburst near the constellation Sagittarius that they believe was caused by a distant galaxy in the midst of reversing the direction of its spiral rotation.

Not exact matches

It would be otiose to give examples: a distant thunder is in the past as much as a distant star; but no matter how far in time - space a star or galaxy is, it is always faintly immanent in my Here - Now even when its action is below the threshold of human perception; its action can be made visible by a combination of lenses or a prolonged photographic exposure.

Today astronomers measure how much dark matter a cluster of galaxies may have by observing how the cluster bends light from more distant objects.

Chemical calculations show that helium hydride should be visible in clouds around distant galaxies and supernovas, or even in modern planetary nebulas (shells of gas expelled by aged, sunlike stars).

By the 1930s, American astronomers Vesto Melvin Slipher and Edwin Hubble had measured the movement of distant galaxies, convincing everyone — even Einstein — that the universe was expanding, despite it all.

MAGNIFYING THE COSMOS The light from a distant galaxy (lower right) is warped by the gravity of a closer, massive galaxy (bright blur in center).

These can reveal distant, ancient galaxies whose light has been stretched by the universe's expansion to more than triple its initial wavelength.

When dark matter lies between us and a distant galaxy, the light of the galaxy can be warped by the gravity from the dark matter.

If the expansion is slowing down, the velocity of a distant galaxy would be relatively greater than the velocity predicted by Hubble's law.

The instrument is sensitive to near - infrared light, the wavelengths at which the emissions of extremely distant galaxies — stretched by the expansion of space — shine most brightly.

Astronomers studying distant galaxies powered by monster black holes have uncovered an unexpected link between two very different wavelengths of the light they emit, the mid-infrared and gamma rays.

To locate the source, a group directed by Puget and David L. Clements in Paris has started the first far - infrared search for distant galaxies, using the European Space Agency's Infrared Space Observatory (ISO).

A team of astronomers, led by Karina Caputi of the Kapteyn Astronomical Institute at the University of Groningen, has now unearthed many distant galaxies that had escaped earlier scrutiny.

Christian Marinoni and Adeline Buzz at the University of Provence in Marseille, France, realised they could fine - tune such estimates by observing distant galaxy systems in which two galaxies orbit each other.

Guyon adds that the system will help astronomers to study the skies more efficiently, by bringing large objects, such as nearby galaxies, into focus all at once, and by allowing more distant objects to be studied in a single snapshot.

To find out, they studied distant galaxies whose light has been distorted by the gravitational pull of other, nearer galaxies.

According to recent measurements by a Nobel prizewinning team, space is stretching 9 per cent faster than we think it should be — yanking distant galaxies away from us at a rate that defies easy explanation.

This was the conclusion announced in March by astronomers who studied explosions of stars in distant galaxies.

Submillimeter emissions are typically produced by carbon and water molecules in distant galaxies and star - forming regions.

The other method, practised by Riess and his colleagues, measures how distant galaxies appear to recede from us as the universe expands, using stars and supernovae of known brightness to gauge the distance to those galaxies.

Using the Very Large Array of the National Radio Astronomy Observatory in the US, the team observed radio emission from hydrogen in a distant galaxy and found that it would have contained billions of young, massive stars surrounded by clouds of hydrogen gas.

These arced or blobby features, seen in images of deep space, are actually distant galaxies whose light has been bent by the mass of foreground galaxies.

The team made a 3 - D map by collecting light from over 70,000 galaxies, peering all the way into the distant universe, and by using this light to measure how far these galaxies are from our own Milky Way.

Getting a high - resolution spectrum was possible thanks to a fortunate trick of nature: The light of the distant object is magnified 50 times by the gravity of a galaxy cluster halfway between the Earth and cB58.

These gamma - ray bursts, astrophysicists recently learned, originate in distant galaxies and are unfathomably powerful — as much as 10 quadrillion (a one followed by 16 zeros) times as energetic as the sun.

Similarly, centrifugal forces are caused by rotation relative to the distant galaxies, so in principle you could produce centrifugal forces by standing still and making the Universe rotate about you.

Researchers estimated the rate of star formation by measuring far - infrared wavelengths of light emanating from the distant galaxy.

However, through the phenomenon known as «gravitational lensing,» a massive, foreground cluster of galaxies acts as a natural «zoom lens» in space by magnifying and stretching images of far more distant background galaxies.

When you see Jupiter shining in the night sky, for example, you're looking about an hour back in time, whereas the light from distant galaxies captured by telescopes today was emitted millions of years ago.

The objects causing these low - frequency ripples — such as orbiting supermassive black holes at the centers of distant galaxies — would be different from the higher frequency ripples, emitted by collisions of much smaller black holes, that have so far been detected on Earth.

The light waves from distant galaxies are stretched and reddened by the expansion of the universe, and this redshift is proportional to a galaxy's distance.

It said that everything that happens in the cosmos at large — be it an apple falling from a tree on Earth or the distant whirling of a cluster of galaxies — happens because stuff follows invisible contortions in space and time that are caused by the presence of other stuff.

The CIB glow is more irregular than can be explained by distant unresolved galaxies, and this excess structure is thought to be light emitted when the universe was less than a billion years old.

The study led by Donahue looked at far - ultraviolet light from a variety of massive elliptical galaxies found in the Cluster Lensing And Supernova Survey with Hubble (CLASH), which contains elliptical galaxies in the distant universe.

Many distant quasars — luminous galaxies, thought to be powered by large central black holes — are known to contain warm dust, which glows at infrared wavelengths.

The faint radiation was visible thanks to a fortuitous cosmic alignment: The light from the distant quasar is amplified by the gravity of a much closer, invisible galaxy.

Five distant galaxies so choked with dust that they are completely invisible at optical wavelengths have been spotted at submillimetre wavelengths by the European Space Agency's Herschel telescope.

«Till recent years, in the paradigm of galaxy formation and evolution, elliptical galaxies were thought to have formed by the merging of stellar disks in the distant Universe.

If a distant galaxy were lined up right behind one more close by, this warping would bend and magnify the faraway galaxy's image, a phenomenon now called gravitational lensing.

Looking at a distant galaxy: the radio chart (left) shows the image of the blazar PKS 1830 - 211 distorted by the gravitational lens effect.

New research by Harvard astronomers Peter Williams and Edo Berger shows that the radio emission believed to be an afterglow actually originated from a distant galaxy's core and was unassociated with the fast radio burst.

The start of a jet in the distant galaxy J1415 +1320 was magnified by a massive object in the foreground, closer to Earth.

Astronomers have uncovered a supermassive black hole that has been propelled out of the center of a distant galaxy by what could be the awesome power of gravitational waves.

Supernova measurements indicate that distant galaxies are separating from one another by 73 kilometers per second for each megaparsec (about 3.3 million light - years) of distance between them.

An international team of astronomers, led by Imperial College London, used a new way of combining data from the two European Space Agency satellites, Planck and Herschel, to identify more distant galaxy clusters than has previously been possible.