Sentences with phrase «background galaxies which»

The team managed to combine the data by using background galaxies which did not change position in the 12 years.

Not exact matches

Researchers used supernovas, cosmic microwave background radiation and patterns of galaxy clusters to measure the Hubble constant — the rate at which the universe expands — but their results were mismatched, Emily Conover reported in «Debate persists on cosmic expansion» (SN: 8/6/16, p. 10).

Small primordial ripples in the structure of spacetime, which can be seen in the cosmic microwave background, grew to colossal scale and led to the formation of stars, galaxies, and other structures.

Scientists indirectly detected this dark matter through its gravitational influence, which bends and distorts the light of galaxies in the background.

According to Lauer, the observed motion of the 119 galaxy clusters relative to the microwave background has two possible explanations, neither of which is palatable to cosmologists.

The net velocity of 690 kilometres per second relative to the microwave background was towards the constellation Virgo, 80degree away from the direction in which nearby galaxies are moving.

By precisely locating the same stars in Andromeda in 2002 and then again in 2010, astronomers at the Space Telescope Science Institute in Baltimore have calculated how the galaxy has moved against the background of deep space — confirming that the galaxy's sideways motion is but a fraction of the speed at which it's hurtling toward the Milky Way.

The telescope has helped researchers detect such clusters by exploiting a phenomenon known as the Sunyaev - Zel «dovich effect, which causes massive galaxy clusters to leave an impression on the cosmic microwave background: a faint, universe - spanning glow of light left over from the big bang.

The ideal background «lights» for such a study are quasars, which are very distant bright cores of active galaxies powered by black holes.

Thanks to the dry, clear atmosphere at the South Pole, SPT is better able to «look» at the cosmic microwave background — the thermal radiation left over from the Big Bang — and map out the location of galaxy clusters, which are hundreds to thousands of galaxies that are bound together gravitationally and among the largest objects in the universe.

To conduct the new study, the Hawaiian team, led by astronomer Istvan Szapudi, combined two large - scale observations of the cosmos that already had been completed: the cosmic microwave background (CMB), which represents the last, dying embers of the big bang, and the Sloan Digital Sky Survey, which comprises images of millions of galaxies.

In the background are the blue and red elongated shapes of many other galaxies, which lie at vast distances from us — but which can all be seen by the sharp eye of Hubble.

The microwave background marks the limit of the observable universe, nearly 14 billion light - years away, and Rudnick believes that the void, which is 6 billion to 10 billion light - years away, imprinted its form on the microwave background by the simple virtue of being empty: Under the influence of dark energy and gravity, space containing clusters of galaxies compresses microwaves to a shorter, warmer part of the spectrum, while space that is empty on this scale stretches and cools microwaves.

Such minute variations in these quantities are required to explain the way in which stars and galaxies clump together and the detailed properties of the cosmic microwave background radiation.

«These beautiful pictures show the background galaxies warped into multiple arcs and rings of light, known as Einstein rings, which encircle the foreground galaxies.

The image, which shows gas, dust and stars spread across the sky in a disorderly and irregular jumble, also reveals several other, far more distant galaxies that appear as fuzzy shapes in the background.

The map was generated from imprints of hydrogen gas observed in the spectrum of 24 background galaxies, which are located behind the volume being mapped.

The numerous galaxy collisions literally tear some galaxies apart and scatter their stars into wide orbits around the newly created large galaxies, which should give the galaxies a faint background glow of stellar light.

These high resolution images also showed that the lensing galaxy is an edge - on disc galaxy — similar to our galaxy, the Milky Way — which obscures parts of the background light due to the large dust clouds it contains.

The map was created by using faint background galaxies as light sources, against which gas could be seen by the characteristic absorption features of hydrogen.

The cluster lenses a galaxy located behind it, which results in arc - like images of the galaxy in the background.

The Collectors and Reaper threats are always lurking in the background, but never really thrust the larger narrative forward until the very end, which lends more time to Shepard and their crew to hang out and scour the galaxy for volunteers at their leisure.