Researchers used advanced instrument MOSFIRE to quantify oxygen in COSMOS-1908, a galaxy 12 billion years old. The measurement provides insights into how matter cycles in and out of galaxies, allowing for better understanding of galaxy evolution and formation.
The Hubble Space Telescope has explored the farthest objects in the universe, unveiling a warping-of-space phenomenon predicted by Einstein. The telescope has magnified images of galaxies much farther away, allowing astronomers to study the early universe and understand dark matter.
A team of physicists and astronomers has created the largest-ever three-dimensional map of distant galaxies to measure dark energy's effects on the universe's expansion. The Baryon Oscillation Spectroscopic Survey (BOSS) program reveals the structure of the universe over 650 cubic billion light years.
Scientists mapped 1.2 million galaxies in a 3D map to study the properties of dark energy and its impact on the universe's expansion rate. The map reveals the effects of dark energy, allowing astronomers to measure the amount of matter and dark energy in the present-day universe.
A study of around 70,000 galaxies reveals that external mechanisms, such as infalling galaxy drag and gas stripping, are only relevant to quenching galaxies during the last eight billion years. Internal mechanisms, including black holes and stellar outflows, dominate star formation shutdown before this time.
Data from Japan's Hitomi X-ray satellite shows that supermassive black holes play a crucial role in the evolution of galaxies, regulating their growth by releasing energy that keeps plasma hot. This heat prevents galaxies from forming new stars and becoming even larger.
The Ultra-Deep Survey (UDS) has mapped an area four times the size of the full Moon to unprecedented depth, revealing over 250,000 galaxies detected within the first billion years after the Big Bang. Astronomers will study early stages of galaxy formation and evolution using these images.
Astronomers have observed the early formation of galaxies and found that stars were forming inside them much faster in the past. The rapid star birth is using up more cosmic dust, which is becoming cleaner as the universe evolves.
Researchers used computer modeling to investigate galaxy colors and their relation to evolution. They found that rare green galaxies are likely at a critical stage of transformation from blue to red as they age. The study suggests that these galaxies' unique colors can provide insights into the processes driving their evolution.
Astronomers discovered a rare cosmic tadpole galaxy, LEDA 36252, with its bright head and elongated tail. The galaxy features surprisingly young stars with a total mass equivalent to 10,000 Suns, indicating a recent burst of star formation triggered by the accretion of primordial gas.
Researchers found that supermassive black holes at galaxy centers are likely to have weaker gravitational fields, making them harder to detect. This challenges previous assumptions about the detection of gravitational waves from merging galaxies.
Research suggests that galaxies actively launch large amounts of oxygen, carbon, and iron atoms up to a million light years away from their surroundings, leaving them with depleted reserves. This process, driven by violent supernovae and supermassive black holes, can take over 10 billion years.
Astronomers refine universe's expansion rate with unprecedented accuracy, reducing uncertainty to 2.4 percent. The new value of 73.2 kilometers per second per megaparsec indicates the distance between cosmic objects will double in 9.8 billion years.
An international team of scientists has detected a faint signal emitted by hydrogen gas in a galaxy over five billion light years away. The detection, achieved using the Very Large Array radio telescope, reveals an unusually large amount of hydrogen and provides insights into the history of galaxy evolution.
A team of researchers has discovered a new class of galaxies where supermassive black holes trigger powerful winds that prevent future star formation. These 'red geysers' lack young stars despite having abundant gas, and their outflowing winds heat surrounding gas through shocks, ultimately suppressing stellar birth.
A new phenomenon dubbed 'red geysers' has been identified in galaxies, which host low-energy supermassive black holes driving intense interstellar winds. These winds prevent gas from cooling and condensing into stars, maintaining quiescence in galaxies.
A new class of galaxies called 'red geysers' has been discovered, hosting low-energy supermassive black holes that drive intense interstellar winds. These winds suppress star formation by heating up the ambient gas in galaxies and preventing it from cooling and condensing into stars.
Researchers detected gamma-ray emission in Arp 220, revealing extreme energetic processes and hidden cosmic rays. The finding expands energy observations of galaxies and sheds light on the population of extreme energetic particles.
A team of astronomers has measured the mass of an ultra-diffuse galaxy using the Gran Telescopio CANARIAS, revealing it is composed primarily of dark matter with very few stars. The findings suggest that such galaxies could exist due to a large amount of dark matter protecting them from destruction.
Researchers found that hot dust in the distant universe is often caused by three or four galaxies instead of a single one. This study applied statistical methods to data from the Herschel Space Observatory and dropped the number of stars these galaxies have to be producing by a third.
Researchers found a supermassive black hole with an estimated mass of 17 billion solar masses in the galaxy NGC 1600, located 200 million light-years from Earth. This discovery suggests that these massive objects may be more common than previously thought and could be living in smaller galaxies.
Astronomers have discovered a record-breaking supermassive black hole weighing 17 billion suns in the center of a galaxy in a sparsely populated area of the universe. The massive object's size defies expectations, as it is 10 times more massive than predicted for a galaxy of its mass.
A team of researchers, led by UC Riverside graduate student Irene Shivaei, used a combination of near-infrared spectrometer and infrared images to study 17 bright distant galaxies. They compared various observables, including ultraviolet light, infrared light, and nebular emission lines, to estimate the star-formation rate. The study i...
Astronomers at UMass Amherst report the discovery of eight 'outrageously luminous' galaxies, which outshine previously brightest known galaxies. The newly observed galaxies are estimated to be about 10 billion years old and formed only 4 billion years after the Big Bang.
A team of researchers discovered 80 young galaxies in the early universe, with at least 54 being spatially resolved. Computer simulations confirmed that many of these galaxies are actually merging pairs, triggering intense star formation activity. This study sheds light on the formation and evolution of compact galaxies.
A team of scientists has found that compact dwarf galaxies, like the green pea galaxy J0925+1403, could explain cosmic reionization by ejecting ionizing photons into the intergalactic medium. This discovery opens a new avenue for understanding the early universe's 14 billion-year history.
An international team has discovered a compact galaxy emitting a large number of ionizing photons, confirming the hypothesis that galaxies were responsible for cosmic reionization. The 'green pea' galaxy J0925 was found to be ejecting ionizing photons with unprecedented intensity.
A new method of galactoseismology has confirmed the existence of a dark-matter dominated dwarf galaxy and may help locate satellite galaxies. The method uses waves in the galactic disk to map the interior structure and mass of galaxies, offering a fresh perspective on understanding dark matter.
Astronomers have detected a massive galaxy cluster, IDCS J1426.5+3508, 10 billion light years from Earth, formed just 3.8 billion years after the Big Bang. The cluster is about 1,000 times more massive than the Milky Way and is undergoing significant upheaval.
Astronomers discovered nine monstrous baby galaxies 11.5 billion light-years away, pinpointed by ALMA's high resolution. These young galaxies reside at the intersection of massive filaments in dark matter, supporting a model for their formation.
Astronomers discovered the faintest object ever seen in the early universe, dubbed Tayna, with NASA's Hubble and Spitzer space telescopes. This small, dim galaxy is thought to be a key to understanding the formation and evolution of the first galaxies.
George Conidis' groundbreaking discovery shows that galaxies like our cosmic neighbourhood are spinning at an angle, contradicting long-held theories. He used pattern recognition software and 3D computer simulations to measure the spin of outer-lying groupings of galaxies.
Astronomers have identified a type of gas found in galaxy voids that appears to fuel star formation under certain conditions. Researchers used radio telescopes to measure atomic gas levels in galaxies with gamma-ray bursts, finding large amounts of the gas near these events.
Researchers have discovered a dying giant radio galaxy 9 billion light years away, offering insights into the properties of magnetic fields in the distant universe. The galaxy's radio lobes are fading due to energy loss through radio wave emission and inverse Compton scattering.
PhD student Elise Hampton uses AI to analyze thousands of galaxy spectra, identifying the most turbulent and messy galaxies. Her goal is to understand how galaxies form, live, and die, and how different processes compete in these galactic systems.
The discovery of over 250 dwarf galaxies at z=6-8 provides strong evidence that faint dwarf galaxies were responsible for cosmic reionization. The team's analysis determined that the smallest and most abundant galaxies in the study were vital to the process.
Researchers using ALMA telescope detected a burst of new stars in seven distant galaxies nine billion years ago. The galaxies' gas content was already depleted despite high rates of star formation, suggesting an increase in efficiency above the main sequence. This study pushes galaxies at z~1.6 well-above the star-forming main sequence.
A study of edge-on spiral galaxies has revealed that halos of cosmic rays and magnetic fields are much more common than previously thought. Researchers used the VLA to detect faint radio emission, providing valuable information on star formation, winds from exploding stars, and galaxy magnetic fields.
Researchers discovered massive dead galaxies with stellar content similar to local elliptical galaxies, revealing the formation and evolution of massive galaxies. The team found progenitors of these dead galaxies when they were forming stars at an earlier cosmic epoch, uncovering a consistent picture of galaxy history.
Astronomers reanalyzed archival data to find only 11 galaxies with 'genuine' mergers, leading to a lower estimated rate of galaxy mergers and potentially fewer supermassive black hole pairs. This reduces the level of expected gravitational waves from X-shaped radio galaxies.
The DESI Collaboration, led by the U.S. Department of Energy, has achieved a major milestone in its dark energy research project. Using the Dark Energy Spectroscopic Instrument, DESI will measure the redshifts of over 30 million galaxies and quasars with unprecedented precision.
UBC researchers propose a new way to calculate cosmological distances using fast radio bursts, allowing the positioning of distant galaxies in three dimensions and mapping out the cosmos. The method uses the delay between arrival times of different frequencies to create a catalogue of galaxies.
Researchers found a distant galaxy cluster producing over 800 solar masses of new stars annually, significantly higher than our Milky Way. The discovery reveals a rare 'wet merger' event where a gas-rich spiral galaxy collides with the massive cluster's central galaxy.
Researchers used the Atacama Large Millimeter/submillimeter Array (ALMA) to locate compact regions within the nearby dwarf irregular galaxy Wolf--Lundmark--Melotte that can emulate larger galaxies' star-forming environments. These discoveries shed light on how dense star clusters can form in low-density, gas-poor galaxies.
Researchers found nearly 10 times more faint, early galaxies than previously detected in deep Hubble surveys. They used a new statistical method to parse out signals from noise in the images.
A team of astronomers discovered 48 Dust Obscured Galaxies (DOGs) using the Hyper Suprime-Cam instrument on the Subaru Telescope. These rare galaxies are thought to harbor rapidly growing black holes, providing insights into the co-evolution of galaxies and supermassive black holes.
Researchers have observed a massive transformation in galaxy structure, with disc-shaped galaxies becoming oval-shaped galaxies. The study provides the first direct evidence of this 'metamorphosis' and sheds light on the processes that caused it.
Scientists using Dark Energy Survey find eight faint celestial objects orbiting Milky Way, which could indicate more galaxies hiding nearby. These discoveries suggest our cosmic neighborhood is more densely populated than previously thought, with implications for understanding dark matter and galaxy formation.
Scientists use archived data from NASA's Hubble Space Telescope to study 13 unusual exploding stars, known as supernovae. These young stars were ejected from their galaxies at high speeds, and astronomers believe that supermassive black holes in merging galaxies played a key role in their ejection.
A new study suggests that rogue supernovas that explode in deep space were likely kicked out of their galaxies at high speeds and then ejected into space by the gravitational pull of a binary black hole. The study, published in Monthly Notices of the Royal Astronomical Society, used data from NASA's Hubble Space Telescope to trace 13 h...
Researchers measured energy generated within space more precisely than ever before, discovering the Universe is slowly dying. The Galaxy and Mass Assembly project used seven powerful telescopes to observe 200,000 galaxies at 21 wavelengths.
Astronomers have detected a self-regulating cycle of star births within elliptical galaxies, with black holes controlling the rate of gas cooling and star formation. The unique capabilities of space telescopes like Hubble allowed researchers to directly observe 'showers' of star formation linked to galaxy jets.
A new simulation by Carnegie Mellon University researchers suggests that large disk galaxies, like the Milky Way, might have formed in the early universe. The BlueTides simulation, which is 100 times larger than previous simulations, shows a number of disk galaxies existing at 500 million years post-Big Bang, challenging long-held theo...
Astronomers using the Subaru Telescope's Hyper Suprime-Cam camera observed deep, super-wide-field images of the galaxies and their populations of young stars. The team discovered that the spatial distribution of young stars around these galaxies follows closely that of their distribution of neutral hydrogen.
Chakrabarti's new study will create a simulated map of satellite populations from analyzing extended atomic hydrogen disks, which may answer the
A team of astronomers using ALMA has detected the faint glow of ionised carbon in a galaxy just over 800 million years after the Big Bang. This finding reveals new details about the assembly of galaxies in the early universe and provides valuable information on the interstellar medium and star formation processes.
A new theory suggests dark matter behaves similarly to pions, which hold atomic nuclei together. This finding resolves outstanding discrepancies in predicted mass distributions within galaxies and clusters of galaxies.
Researchers found that galaxies in the Coma Cluster could have as much as 100 times more dark matter than visible matter, allowing them to survive and thrive. The study used computer simulations to model how these 'dead' galaxies evolved into their current state.
A study of over 20,000 merging galaxies found that when two galaxies collide, the larger one can stop the smaller one from forming new stars. However, when two galaxies of similar mass collide, they both increase their stellar birth rate.
A new study led by Michigan State University suggests there may be fewer galaxies further out in the universe than previously expected. The research used simulations to examine galaxy formation in the early universe and found that the number of faint galaxies could be as low as ten times larger than initially thought.