To understand what that redshift measurement means, it's important to understand, by the time it reaches us, the wavelength of light from
very distant galaxies is stretched by the expansion of the universe.
But we haven't fully connected our theories to what we observe, especially with quasars, these incredibly bright centers of
very distant galaxies that serve as beacons of the early universe.
One of the goals of ALMA is to capture radiation from
very distant galaxies: they were among the first to form in the history of the Universe, and we see the light that they emitted over ten billion years ago.
By studying the statistical properties of the shapes of
very distant galaxies and quasars, astronomers can use the effects of weak lensing to study the distribution of dark matter in the universe.
Supergiant luminosities are not as well known or uniform as the Type Ia supernovae, so astronomers prefer to use the Type Ia supernovae to derive the distances to
the very distant galaxies.
Pictures from the Hubble Space Telescope of
very distant galaxies show more distorted shapes, bent spiral arms, and irregular fragments than in nearby galaxies (seen in a more recent stage of their evolution).
Instead of conducting a narrow and deep study of a small area of the sky, the team broadened their scope to produce the widest survey of
very distant galaxies ever attempted.
The MUSE data provides a new view of dim,
very distant galaxies, seen near the beginning of the Universe.
Gwen Rudie studies the chemical and physical properties of
very distant galaxies and their surrounding gas in order to further our understanding of the processes that are central to the formation and development of galaxies.
They planned to do so by carefully calibrating the brightness of a well - studied type of supernova in
very distant galaxies.
Very distant galaxies that happen to lie behind these lenses from the perspective of Earth will appear magnified and brightened because of the gravitational warping of their light.
And Volker Bromm of the University of Texas, Austin, calls the research «very nice work that bodes well» for detecting more molecules in
very distant galaxies.
Starlight from
very distant galaxies takes billions of years to reach Earth, so we see these galaxies as they were billions of years ago.
Inaugurated in 1991 to search for flashes of light from gamma - ray bursts — enigmatic explosions mostly seen in
very distant galaxies — it never found one and was eventually shut down.
But around the same time studies of
very distant galaxies, which we see as they were when the Universe was very young, were setting constraints on the amount of baryonic matter in the Universe (New Scientist, Science, 30 April).
This research is a substantial increase in the number of known
very distant galaxies.
Very distant galaxies have surprisingly little dark matter, the invisible stuff thought to make up the bulk of matter in the universe, new observations suggest.
The MUSE data provides a new view of dim,
very distant galaxies, seen near the beginning of the Universe about 13 billion years ago.
You'd be hard pressed to discover laws of gravity if you were a space creature just floating midway between a few
very distant galaxies.
An international team used the European Southern Observatory's Very Large Telescope array to observe gas clouds in
a very distant galaxy.
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.
The gravitational lensing can also sometimes magnify the light of an otherwise too - faint,
very distant galaxy enough for us to see it — a bonus natural telescope!
The high - resolution images taken by the Hubble Space Telescope for the Frontier Fields survey have yielded a treasure trove of insights into
very distant galaxy clusters.
Not exact matches
The space - warping quirks of relativity that lead to deviations from Newton's earlier theory of gravity only become obvious on
very large scales, but our passive observations of
distant planets, stars and
galaxies have yet to deliver anything...
The MOIRCS near - infrared spectrograph is
very effective for studies focused on the
distant, early universe because strong emission lines from star - forming
galaxies are redshifted from the optical to the near - infrared regime.
A closer look at this beautiful new picture not only allows a
very detailed inspection of the star - forming spiral arms of the
galaxy, but also reveals the
very rich scenery of the more
distant galaxies scattered behind the myriad stars and glowing clouds of NGC 598.
Some research has been done to deduce the chemical makeup of
very early
galaxies, based on observations of
very bright,
distant galaxies, or of
very old stars that formed in the early universe and are still around today, Hewitt said.
«Our current observations indicate that it will be
very easy to measure accurate distances to these
distant galaxies in the future with the James Webb Space Telescope,» said co-author Garth Illingworth of the University of California - Santa Cruz.
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.
«Dust is ubiquitous in nearby and more
distant galaxies, but has, until recently, been
very difficult to detect in the
very early universe,» says University of Edinburgh astrophysicist Michal Michalowski, who was not involved in the study.
Co-author Dr Luca Cortese said detecting atomic hydrogen emission from
distant galaxies is
very challenging.
«These signals would have begun their journey before our planet even existed, and after five billion years of travelling through space without hitting anything, they've fallen into the telescope and allowed us to see this
distant galaxy for the
very first time.»
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.
At this
very moment the most
distant galaxies are tugging at you, and you are tugging them.
About a dozen
distant galaxies not recognized before are circled in this
Very Large Telescope image.
This view shows how the new MUSE instrument on ESO's
Very Large Telescope gives a innovative three - dimensional depiction of a
distant galaxy.
Using the European
Very Large Telescope (VLT), a French - Italian team of astronomers has found many more
galaxies in the
distant past than had been previously observed.
Observations of the
galaxies» spectra suggest they are
very distant, appearing as they were when the universe was just 2 to 4 billion years old, less than a third its present age.
These observations have the power of penetrating through interstellar dust and so to unveil the star formation processes in the
very distant, dusty
galaxies, that constituted the progenitors of local ellipticals.
Staring at a small patch of sky for more than 50 hours with the ultra-sensitive Karl G. Jansky
Very Large Array (VLA), astronomers have for the first time identified discrete sources that account for nearly all the radio waves coming from
distant galaxies.
The ideal background «lights» for such a study are quasars, which are
very distant bright cores of active
galaxies powered by black holes.
To do so, they used the National Science Foundation's Karl G. Jansky
Very Large Array (VLA) and the Atacama Large Millimeter / submillimeter Array (ALMA) to look at
distant galaxies seen as they were some 10 billion years ago.
Radio / Optical combination images of
distant galaxies as seen with NSF's
Very Large Array and NASA's Hubble Space Telescope.
The activity of these ULXs in
distant galaxies is
very similar to a mysterious object in our own Milky Way.
«As we were searching for
distant galaxies magnified by Abell 2218, we detected a pair of strikingly similar images whose arrangement and color indicate a
very distant object,» explains lead author Jean - Paul Kneib of the California Institute of Technology.
In theory,
very distant (and therefore young)
galaxies should have weaker magnetic fields than
galaxies which are around today.
Now the researchers hope that future observations of a large number of
distant galaxies using the ALMA telescopes could help unravel how frequently such evolved
galaxies occur in this
very early epoch of the history of the universe.
A second mode provides low spectral resolution but high sensitivity and is popular for studies of
distant galaxies and
very cool low - mass stars.
Quasars are
very luminous objects powered by accretion of gas into supermassive black holes at the centers of
distant galaxies.
When a
very massive
galaxy comes smack in between Earth and a
distant galaxy, the light from the
distant galaxy is bent around the huge impediment.