Articles tagged with Radio Astronomy
Researchers use VLA radio telescope to image galaxy NGC 4217's magnetic field, extending far beyond the galaxy's disk. The dynamo theory suggests that this massive magnetic field is generated by plasma motion within the galaxy's disk.
Researchers analyzed the magnetic field of Milky Way-like galaxy NGC 4217 and discovered unique structures such as X-shaped fields, helices, superbubbles, and giant loops. These findings suggest a connection between star formation and supernovae explosions in shaping the galaxy's magnetic field.
Researchers have discovered an unusual pulsar in a binary system with two neutron stars of different masses, which could provide vital clues about unsolved mysteries in astrophysics. The discovery, published in Nature, sheds light on the expansion rate of the Universe and the nature of exotic matter that makes up neutron star interiors.
Astronomers have discovered a region around a protostar containing complex organic molecules, dubbed a 'hot corino,' which is crucial for the formation of life. The finding resolves a long-standing puzzle about why some binary systems show evidence of hot corinos but not others.
The Event Horizon Telescope (EHT) has captured the first direct visual evidence of a supermassive black hole, located 55 million light-years from Earth. The image reveals the black hole's mass is 6.5-billion times that of the Sun.
Astronomers observed water vapor jets streaming away from a protostar, detecting heavy water naturally emitted by water molecules. ALMA also observed a wealth of complex organic molecules surrounding the star-forming region, with over ten times more spectral lines than previous observations.
Marialis Rosario-Franco, a UTA doctoral student, has been awarded the Gröte Reber Doctoral Fellowship to study exomoons in four-body systems and their potential detection by modern radio telescopes. The fellowship allows her to conduct observational research at the NRAO's Very Large Array and Long Wavelength Array.
Astronomers have discovered that all galaxies rotate at the same rate, with a sharp edge containing older stars, gas, and young stars. This regularity helps understand galaxy mechanics, enabling more efficient observations and reduced processing power.
The discovery of benzonitrile marks a significant milestone in understanding the source of the Milky Way's mysterious infrared glow. The detection provides chemical breadcrumbs from simple molecules to larger PAHs, shedding light on their ubiquity in interstellar space.
Researchers found that the 'twisting' phenomenon caused by Faraday rotation in magnetized plasma helps them narrow down the source of the cosmic blast. The data suggests a high magnetic field and dense gas surrounding the source, potentially linked to a young neutron star or massive black hole.
Australian scientist Dr. Tobias Westmeier has created the most detailed map ever of high-velocity gas clouds in the Universe, revealing over 13% of the sky is covered by these mysterious clouds. The map shows gas clouds moving at speeds of up to a few hundred kilometers per second and provides new clues about their origin.
The Dunlap Institute has received $23 million in funding to develop innovative astronomical technology, including a radio astronomy data centre and an infrared spectrograph. These projects will position Canada at the forefront of next-generation astronomy research.
The VLA Sky Survey (VLASS) will produce the sharpest radio view of a large portion of the sky, detecting powerful cosmic explosions and superfast particles. The survey will reveal new information on galaxy growth, magnetic fields, and interactions between galaxies.
The Australian Square Kilometre Array Pathfinder (ASKAP) has successfully detected its first fast radio burst (FRB), marking a major breakthrough in this elusive field of astronomy. The detection was made using an innovative strategy, allowing the telescope to scan a larger area of the sky and increasing its chances of finding FRBs.
Researchers have discovered young stars in old star clusters, suggesting that our current models of stellar evolution may be incorrect. This finding could mean that star clusters contain multiple generations of stars.
Astronomers detected carbon monoxide gas indicating large quantity of molecular hydrogen, suggesting formation of a single, gigantic galaxy. The cloud of cold gas is estimated to be three times the size of the Milky Way Galaxy.
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 astronomers discovered the most detailed record ever of a Fast Radio Burst (FRB), indicating that it originated in a highly magnetized region of space. The research suggests a link to recent supernovae or active star-forming nebulae, significantly narrowing down the source's environment and type of event.
Researchers discovered neutron stars can accelerate material to nearly light speed, rivaling black holes. This finding contradicts previous theories about neutron star behavior.
A team of astronomers using APEX and other telescopes revealed that the star that appeared in the sky in 1670 was a rare stellar collision, not a nova. The team discovered a cool gas rich in molecules with an unusual chemical composition, which was too great to be explained by a nova explosion.
Astronomers have discovered a galaxy, AzTEC-3, that gives birth to 1,100 suns annually, creating about three suns each day. This ancient galaxy is one of the earliest examples of a starburst galaxy, fuelled by massive material and galactic mergers.
Astronomers have observed a recently formed dust factory in the remnant of Supernova 1987A using ALMA. The findings suggest that significant amounts of dust are being created by supernovae explosions, which could explain the dusty appearance of many galaxies in the early Universe.
Researchers at Luz WaveLabs have developed a Terahertz generator with a signal quality one million times greater than current technology. The device uses an 'optic seed' to synthesize high-quality THz signals, making it suitable for various applications including security systems, cancer detection, and industrial inspection.
The Green Bank Telescope has captured detailed images of M82, highlighting streamers of material and dense molecular gas surrounding areas of intense star formation. Astronomers hope to understand the connection between dense gas and star formation by creating wide-angle maps of galaxy gas.
Astronomers have discovered signs of star formation perilously close to the supermassive black hole at the center of the Milky Way Galaxy. The ALMA telescope detected jets of material bursting out of dense clouds of gas and dust, indicating the formation of young stars.
Scientists measured methanol molecule's radio spectrum in a distant galaxy, finding minimal change in proton-to-electron mass ratio over billions of years. The result confirms fundamental properties of molecules have remained consistent despite universe's evolution.
A team of scientists at the Max Planck Institute for Gravitational Physics discovered a record-breaking millisecond pulsar, PSR J1311-3430, using a new data analysis method. The pulsar is accompanied by an unusual sub-stellar partner that it is vaporizing, earning it the nickname 'black widow'.
Two black holes, about 10 to 20 times heavier than the Sun, have been found in the globular cluster M22, a surprise discovery that challenges existing theories. The research, published in Nature, reveals that these smaller black holes are more common in globular clusters than previously thought.
Astronomers have found two smaller black holes in Messier 22 globular cluster, contradicting theoretical predictions of a single black hole. The discovery sheds new light on the environment in close clusters of hundreds of thousands of stars.
Researchers identified a radio-quiet, very young pulsar J1838-0537 that experienced the strongest rotation glitch ever observed for a gamma-ray-only pulsar. The glitch resulted in a 38 millionths of a Hertz faster rotation rate.
Millisecond pulsars lose half of their rotational energy during mass-transfer process, explaining apparent age paradox and absence of sub-millisecond radio pulsars. This result is in agreement with current observations and helps resolve the 'turn-off' problem in stellar astrophysics.
Scientists have found the first gamma-ray pulsar in a globular cluster, J1823-3021A, which is also the youngest millisecond pulsar discovered to date. Its high luminosity and strong magnetic field challenge current theories on its formation.
TheSkyNet project allows public to contribute spare computing power to radio astronomy data processing. The initiative aims to complement primary data processing work of supercomputing facilities, generating real outcomes for scientific research.
The e-MERLIN telescope has captured the first image of a galaxy with its gravitational lens, revealing multiple images of a quasar billions of light years away. This groundbreaking observation demonstrates the power of the new telescope system in studying the fine details of astronomical events.
Astronomers have confirmed that Hanny's Voorwerp is a large cloud of glowing gas illuminated by the light from a quasar, which has since burned out. The team found that the quasar lighting up the gas took up to 70,000 years to travel through space.
A recent study suggests that supermassive black holes formed first and grew before their host galaxies. The ratio of black hole mass to galactic bulge mass is nearly constant across different galaxy sizes and ages. This finding implies that the growth of black holes and galaxies was an interactive process.
A new book on fauna and flora in the ALMA region has been published, showcasing unique observations of local species and key initiatives to protect them. The book is a valuable educational resource for students and teachers in northern Chile.
Astronomers can now compete for coordinated observing time on both GLAST and NRAO radio telescopes to study celestial objects in multiple wavelengths. This collaboration enables the study of flares from blazars, a key area of research to understanding supermassive black holes.
Australian and South African sites selected as top contenders to host the Square Kilometre Array (SKA) radio telescope, with low man-made signals a key requirement. Both countries' sites offer stable ionospheric conditions and a good view of the southern sky, ideal for detecting cosmic radio waves.
Researchers detected five powerful bursts from the Galactic center using the VLA radio telescope, with each burst lasting about 10 minutes and occurring every 77 minutes. The source's coherent emission properties suggest it could be an unknown mode of activity or a new class of objects.
The Green Bank Telescope (GBT) is the world's largest fully steerable radio telescope, opening a new era of astronomical research. With its record-breaking capabilities, scientists will be able to study the universe in unprecedented detail, making groundbreaking discoveries and advancing our understanding of the cosmos.
Researchers detect significant amount of deuterium in Sagittarius A cloud, 30 light years from Milky Way's center. The findings suggest that deuterium was created in the first few minutes after Big Bang and is not produced by stars or stellar activity.
Astronomers calculate that a gamma ray burst has expanded to 85 times the size of our solar system and is still growing. The detection uses the 'twinkling' effect in radio astronomy, where the point where twinkling stops allows for diameter measurement.
Astronomers have detected radio emission from a cosmic gamma-ray burst using the National Science Foundation's Very Large Array (VLA) radio telescope. The detection may help resolve one of the biggest mysteries in astrophysics, providing unprecedented knowledge about gamma-ray bursts and their parent objects.