Articles tagged with Starburst Galaxies
A team of astronomers has found galaxies producing stars at a prodigious rate when the universe was just a billion years old. The discovery, enabled by the Atacama Large Millimeter Array (ALMA), provides valuable data for refining theoretical models of star and galaxy formation in the early universe.
Astronomers using ALMA telescope discover starburst galaxies earlier than thought, representing massive galaxies in energetic youth. These galaxies are forming 1,000 stars per year, compared to just 1 for the Milky Way, making them 'monstrous bursts of star formation'.
Astronomers found dust-enshrouded, star-forming galaxies that were previously unknown in the universe. The newly discovered galaxies produce stars at a prodigious rate, creating thousands of new suns annually.
A team of astronomers has captured stunning images of a nearby dwarf galaxy undergoing a 'stealth merger' with its host. The resulting stellar stream is visible in the outer regions of NGC 4449, providing insights into galaxy formation and evolution.
Astronomers using ALMA have found compelling evidence for how star-forming galaxies evolve into 'red and dead' elliptical galaxies, catching a large group of galaxies right in the middle of this change. The study reveals that galaxies are being starved of star-forming gas by their central black holes' jets.
Researchers found that ultraviolet radiation from massive stars evaporated gas in intergalactic medium, clearing a narrow cone-shaped passage. This process helps explain why similar phenomena in other galaxies were difficult to detect.
Astronomers find that galaxies in this 'sweet spot' mass range can form stars at high rates and grow rapidly. This discovery challenges current models of galaxy formation, suggesting a reduced need for dark matter to trigger starbursts. The research uses infrared images from Herschel's SPIRE instrument.
M82's rapid star formation is believed to have been triggered by a close encounter with neighboring galaxy M81. The Chandra image reveals a unique opportunity to study conditions similar to those of the early universe and the consequences of supernovas in starburst galaxies.
Researchers found NGC 1266, an early-type galaxy, expelling molecular gas at high speeds, potentially leading to its transformation into a 'red and dead' state. The galaxy's gas loss could be a key mechanism in the evolution of galaxies from star-forming spirals to gas-poor red and dead galaxies.
Astronomer Dan Dicken uses Spitzer Space Telescope data to study heat energy from distant active galaxies, aiming to distinguish between starbursts and supermassive black holes. His research could help understand galaxy evolution, co-evolution of black holes and their host galaxies, and the diversity of active galactic nuclei.
Washington University physicists are tracking down the source of cosmic rays using imaging atmospheric Cherenkov telescopes. The correlation between high cosmic-ray density and supernova rate in a starburst galaxy provides powerful evidence for supernova acceleration, long suspected to be the origin of these particles.
Fermi Gamma-ray Space Telescope detects diffuse gamma-ray emission from star-forming regions in nearby galaxies, suggesting that these regions are the source of cosmic rays. The telescope observes intense gamma-ray emission from a region called 30 Doradus within the Large Magellanic Cloud, a satellite galaxy of the Milky Way.
Researchers have detected gamma rays of a trillion electron volts coming from the M 82 galaxy, providing evidence for a strong connection between galaxies with high star formation and the production of cosmic rays. The discovery uses the VERITAS array of four telescopes at the Fred Lawrence Whipple Observatory in Arizona.
The VERITAS telescope array has found new evidence for cosmic rays in the Cigar Galaxy, supporting the theory that supernovae and stellar winds are the dominant accelerators. The discovery confirms that starburst galaxies contain more cosmic rays than normal galaxies.
The study confirms individual galaxies are source of Far Infrared Background, a decade-old question answered. BLAST's submillimeter survey uncovers dust-enshrouded galaxies with properties deciphered through multi-wavelength data.
The Hubble Space Telescope provides a detailed view of Messier 81, revealing young blue stars and glowing regions of fluorescent gas. The galaxy's central black hole is 15 times the mass of the Milky Way's black hole.
Astronomers discover over 500 young galaxies, thriving less than a thousand million years after the Big Bang. The galaxies are smaller and bluer than today's giant galaxies, indicating intense star birth.
Researchers have discovered young, massive stars in ultra-luminous infrared galaxies, surrounded by delicate crystalline silicates called Forsterite. This finding provides new insights into the formation and evolution of these violent cosmic environments.
A new study analyzing data from the Extended Groth Strip Survey found that galaxy weights play a crucial role in determining star formation rates. Researchers discovered that heavy galaxies form stars early and rapidly, while smaller galaxies form their stars over longer timescales.
Astronomers have uncovered a population of infant stars in the Milky Way satellite galaxy, the Small Magellanic Cloud, using NASA/ESA Hubble Space Telescope images. The youngest stars are half the mass of our Sun and still forming from gravitationally collapsing gas clouds.
Scientists discovered a tiny dwarf galaxy in intergalactic space that was previously overlooked. The galaxy is believed to have formed elements through supernova explosions, enriching the gas cloud. This finding suggests that tiny galaxies may have played a significant role in the chemical evolution of the universe.
The study reveals a sophisticated neural computation in the retina that enables directional motion detection. The circuit, involving three redundant mechanisms, is crucial for tracking moving objects and providing dynamic visual information to the brain.
NGC 3310 is forming clusters of new stars at a prodigious rate, with hundreds of individual young, luminous stars visible throughout the galaxy. The wide range of cluster ages suggests that the starbursting can continue for an extended interval, once triggered.
New analysis of astronomical data suggests that galaxies with rapid rates of star formation are linked to active supermassive black holes. The study found evidence that starbursts, regions of frequent and rapid star formation, may be obscuring the central black holes' emissions in some Seyfert galaxies.
The discovery sheds light on the formation and death of stars, revealing intricate structures such as neutron stars, black holes, and X-ray binary systems. The image provides valuable insights into the distribution of heavy atoms throughout the universe, offering a glimpse into the early history of the cosmos.
Researchers used supercomputer simulations to test two competing scenarios explaining high-redshift galaxies. The collisional starburst scenario, which suggests small galaxies trigger intense bursts of star formation, received strong support from the simulation results.
Researchers used computer simulations and high-resolution observations to understand how stars form when galaxies collide. Clumping in gas on a large scale triggers bursts of star formation.