Articles tagged with Galaxies
Chris Carr, an Ohio undergraduate, discovered a new galaxy 37 million lightyears away using deep sky images from the Burrell Schmidt telescope. The detection is part of the Leo I galaxy group and is considered the lowest surface brightness object ever detected via integrated light.
Astronomers using NASA's NuSTAR satellite have revealed that binary star system Eta Carinae is capable of creating cosmic rays. The team observed the system and found evidence of a collision between the two stars' stellar winds, which forms shock waves and accelerates particles to nearly the speed of light.
Researchers used the Keck Cosmic Web Imager to examine Q2343-BX418, a young galaxy about 10 billion light years away, providing insights into its gas halo and its role in star formation. The study suggests that the galaxy's surrounding gas is giving off a specific type of light, offering clues to its evolution.
A new online training platform is being developed to address the lack of bioinformatics and statistics knowledge among researchers in the life sciences. The Galaxy Europe project aims to provide interactive tutorials using real datasets, aiming to improve data science methods use.
Researchers Corey Howard, Ralph Pudritz and William Harris use supercomputer simulations to re-create star cluster formation. The study shows that massive star clusters are the natural outcome of large gas collections, and can be used to reverse-engineer galaxy conditions.
An international team confirms Albert Einstein's general theory of relativity by making the most precise test of gravity outside our solar system. By combining data from NASA's Hubble Space Telescope and the European Southern Observatory's Very Large Telescope, the researchers found that gravity behaves as predicted by GR on galactic s...
A team of researchers using the Herschel Space Observatory, APEX antenna, and ALMA interferometer discovered a cluster of galaxies in deep space when the universe was only 1,500 million years old. This finding challenges current theories on galaxy formation and evolution.
Astronomers discover faint signal of oxygen in galaxy MACS1149-JD1, which is 13.28 billion light-years away and contains chemical maturity that suggests stars were forming as early as 250 million years after the Big Bang. This detection pushes back our understanding of cosmic dawn and the earliest phases of star formation.
Astronomers detected a faint signal of oxygen 13.28 billion light-years away using ALMA, indicating mature star formation in a young galaxy. The observation suggests stars formed 250 million years after the Big Bang.
An international team of astronomers used ALMA to observe a distant galaxy called MACS1149-JD1, detecting ionised oxygen emitted 13.3 billion years ago. This signal indicates that even earlier generations of stars existed in the galaxy, pushing back the frontiers of the observable Universe.
A team of international astronomers has detected oxygen in a galaxy 13.28 billion light-years away, revealing that stars formed at an unexpectedly early stage in the universe's history. The discovery provides insight into the formation of galaxies and sheds light on the 'cosmic dawn' era.
An international team found a fundamental law regulating galaxy cluster growth using gravitational lensing data from NASA's Hubble Space Telescope and Subaru Telescope. The law indicates that clusters are still growing by drawing surrounding substances with their strong gravity.
The Hubble Space Telescope has imaged a massive galaxy cluster, revealing its intricate structure and the presence of dark matter. The cluster is comprised of thousands of galaxies held together by gravity, with most of its mass existing in non-luminous dark matter.
Scientists decoded faint distortions in the universe's earliest light to reveal huge tubelike structures known as filaments, serving as superhighways for delivering matter to dense hubs. The study provides new insights into the formation and evolution of the cosmic web, including dark matter.
Astronomers have discovered the most distant star ever observed, existing only 4.4 billion years after the Big Bang, using gravitational lensing with the Hubble Space Telescope. The light from the star was magnified 2000 times, allowing for its detection.
Astronomers have captured the most distant normal star ever observed, 9 billion light years away, using gravitational lensing. The blue supergiant was magnified over 2,000 times and is hundreds of thousands of times brighter than our Sun.
Astronomers have discovered a new material that could directly detect dark matter particles, expanding the search scope to unexplored mass ranges. The material detects electrons recoiling from collisions with dark matter particles and operates near absolute zero.
Researchers use an easy-to-use, open-source Galaxy workflow to analyze gene families across species. The GeneSeqToFamily workflow removes complex prerequisites and is customizable, making it accessible to biologists unfamiliar with Compara.
A team of researchers has created a comprehensive dark matter map, indicating inconsistent halos with the standard cosmological model. The findings could hold new clues to understanding the accelerating expansion of the Universe.
A team of researchers validated theoretical predictions about the initial evolution of stellar explosions using data from a rare supernova captured by an amateur astronomer. The study found that the rapid brightening rate and low luminosity of SN 2016gkg supported models predicting shock emergence during the explosion.
Astrophysicists at UChicago used laser experiments to verify the turbulent dynamo theory, explaining the generation of cosmic magnetic fields. The study confirmed that turbulent plasma can amplify a weak magnetic field to strengths observed in stars and galaxies.
A new study by UTSA professor Chris Packham and colleagues reveals weaker-than-expected magnetic fields around a black hole, contradicting previous models. The findings shed light on the complex relationship between black holes and galaxies, hinting at a deeper understanding of these cosmic phenomena.
The largest X-ray galaxy cluster ever discovered contains the mass of three million billion suns and is composed of two colliding clusters, with most mass hidden in dark matter. Hubble's observations also show that the hot gas is being torn from the dark matter during the collision.
The Wide Field Infrared Survey Telescope (WFIRST) will generate never-before-seen big pictures of the universe, enabling astronomers to explore mysteries like dark energy and galaxy evolution. The mission will also discover thousands of exoplanets, including rocky planets in the habitable zone.
Emission line galaxies, or cosmic lanterns, help us understand the composition and fate of the Universe. These galaxies show strong emission lines from heated gas, allowing precise distance determination and insight into galaxy formation and evolution.
Astronomer Jeyhan Kartaltepe is leading a team that will use the James Webb Space Telescope to study the formation of the universe's first galaxies. The Cosmic Evolution Early Release Science Survey will provide detailed information about galaxy structures and physical conditions.
Researchers have discovered two colossal galaxies from the early universe, each containing around 273 billion suns' worth of gas and dust. The combined mass of these galaxies is nearly as large as physically possible at that time, suggesting a vast amount of dark matter surrounding them.
The James Webb Space Telescope has released early data from its first five months of operations, targeting Jupiter and its moons, organic molecule-forming infant stars, supermassive black holes, and baby galaxies. The observations will explore exoplanet atmospheres using infrared spectrographs and peer into the distant universe to exam...
Astronomers study distant galaxy's gravitational lensing, revealing smaller-than-thought giant clumps. Groundbreaking observations and simulations confirm turbulent nature of distant galaxies.
Astronomers have detected the second most distant star-forming galaxy in the universe, born 12.8 billion years ago, using the Large Millimeter Telescope (LMT). The galaxy is one of the first massive galaxies to form and was observed with high precision using millimeter waves.
Astronomers analyzed 10 galaxy clusters using Hubble data and found their brightest cluster galaxies wobble around the center of mass, inconsistent with current dark matter models. This result may indicate new physics is at work, requiring a reevaluation of fundamental physics to solve the mystery of dark matter.
Recent study finds that galaxy clusters' density is smaller than predicted, and brightest cluster galaxies wobble, indicating a shallower central density. This suggests the existence of exotic forms of dark matter.
Yale researchers Darryl Seligman and Greg Laughlin have created a new model for understanding how black holes, planets, and galaxies emerge from the vortex-rich environments of space. They found that vortices may shed Rossby waves as they spin and that the number of orbits between two vortices is different in their model.
Scientists will use NASA's James Webb Space Telescope to study the creation of the universe's first galaxies and stars. With its powerful spectrographic instruments, Webb will see much more detail than imaging alone can provide, allowing scientists to study how gases transformed into stars in the first galaxies.
A new study finds a model universe with no dark energy provides a slightly better fit to Type Ia supernovae data than the standard dark energy model. The 'timescape cosmology' challenges current understanding of the Universe's expansion, highlighting the need for more data and better supernova precision.
A team of researchers at the University of Iowa suggests that black holes played a crucial role in making the universe visible. By ejecting matter violently, black holes may have pierced cloudy surroundings, enabling light from stars to escape. This theory is supported by observations of a nearby galaxy emitting ultraviolet light.
Researchers suggest black holes seen via gravitational waves spin slowly or rapidly, with tumbling behavior in dense environments; these findings provide new target for understanding black hole formation.
A study of over 300 galaxies found that heavier galaxies spin more slowly due to their mass, contradicting earlier theories. The research used the Sydney-AAO Multi-object Integral field spectrograph to measure galaxy rotation rates.
The Standard Model of cosmology has been tested to its limits by the Dark Energy Survey, with results showing that the universe clumps and expands as predicted by our best models. The survey's researchers analyzed light from 26 million galaxies to study how structures have changed over the past 7 billion years.
Researchers have produced new maps of dark matter dynamics in the Universe, revealing detailed information about matter streams and velocities. This study uses legacy survey data to build on previous research and provides insights into the nature of dark matter.
Researchers from HKUST and Harvard University found a connection between density distributions in the universe and the nature of smallest particles. They argue that the universe could be used as a 'collider' to explore new physics beyond the Standard Model.
Astronomers use gravitational lens to magnify light from distant galaxy, revealing two dozen clumps of newborn stars. This contradicts earlier theories suggesting larger star-forming regions in the early universe.
Astronomers observe how massive forces create shock waves in interstellar medium, leading to X-ray and radio emissions. The study provides insight into galactic proportions, allowing researchers to see event across electromagnetic spectrum.
A new study reveals that the largest galaxies in the universe have been aligned with their surroundings for at least ten billion years. The discovery suggests that these galaxies are especially sensitive to their environment and were influenced by their surroundings from a young age.
Researchers found a dying star that fizzled out and left behind a black hole, shedding light on why massive stars rarely explode as supernovae. The discovery could help explain the origins of supermassive black holes.
Astronomers have discovered a unique star in the constellation of Lacerta, which is millions of times closer to Earth than the galaxy NGC 7250, allowing it to overpower its light
Astronomers detected four images of the same supernova, a rare find, due to precise alignment with a foreground galaxy. This extreme case of gravitational lensing offers opportunities to study Type Ia supernovae and their role in cosmology.
Astronomers have captured images of a Type Ia supernova appearing in four different locations on the sky due to gravitational lensing. This rare event has opened up new possibilities for measuring the rate of the Universe's expansion with unprecedented accuracy and understanding the distribution of matter.
Researchers at the University of Waterloo have captured the first composite image of a dark matter bridge connecting galaxies. This achievement confirms predictions that galaxies are tied together through a cosmic web connected by dark matter, which has been largely undetectable until now.
Astronomers have discovered a distant galaxy, MACS1423-z7p64, which is about 13.1 billion years old and falls within the 'Epoch of Reionization.' The team used a giant lens in the sky to magnify its brightness and analyze its spectrum.
Researchers detect 75% of a typical galaxy's star formation obscured by dust, revealing surprising findings about the early universe. The Large Millimeter Telescope allows for deeper observations, pushing our knowledge of dust production and metal enrichment over cosmic time.
A new simulation model describes the formation of supermassive black holes in the early universe, proposing that massive gas clouds collapse directly to seed these behemoths. This alternative model, known as the Direct collapse black hole model, suggests that inefficient gas cooling is necessary for this process.
A study of galaxy properties in the cosmic web reveals that central galaxies form stars for a longer period than satellite galaxies. Satellite galaxies experience a steep decline in star formation activity due to 'ram-pressure stripping' as they fall into dense cluster environments.
A Yale-led team has created one of the highest-resolution maps of dark matter ever produced, providing a detailed case for its existence. The map, derived from Hubble Space Telescope Frontier Fields data, closely matches theoretical predictions and offers insights into the universe's structure and galaxy formation.
Swiss researchers use neural networks to challenge the resolution limit of telescopes, recovering features that were previously invisible. The technique, inspired by a generative adversarial network, achieves better results than previous methods, such as deconvolution, and has vast potential for future astronomical observations.
Research uses galaxy distribution and weak lensing to map cosmic web, finding that star-forming galaxies play a more prominent role in the distant universe. The study provides new insights into galaxy evolution and the structure of the cosmos.
The Caltech instrument, KCWI, will map gas flowing into and out of forming galaxies, revealing dominant modes of galaxy formation. KCWI is a versatile general-purpose instrument that can study cosmic objects in ways not possible before.
A team of astronomers led by Penn State's Niel Brandt has captured the deepest X-ray image ever obtained, revealing a treasure trove of supermassive black holes. The image, taken with Chandra observing time of about 11 weeks, shows that these massive objects grow in bursts rather than slowly accumulating matter.
Scientists measured the proportion of unstable particles in dark matter after the Big Bang, finding it was no more than 2-5%. This discrepancy can be explained by decaying dark matter hypothesis, suggesting dark matter decayed over time.
Astronomers discovered a rare event where a star was destroyed by a massive black hole's gravitational tides, producing an unusually bright flash of light. The event occurred in a distant 'red' galaxy with older stars, defying typical supernova models.