Articles tagged with Radio Telescopes
A recent study published in Nature Astronomy has found evidence for three-dimensional (3D) spin-velocity alignment in pulsars. The research, conducted using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), reveals new insights into the origins of these rapidly rotating neutron stars.
Scientists used uGMRT to determine that AT 2018cow has an extremely patchy environment. The study provides the first observational evidence of inhomogeneous emission from an FBOT, which sheds light on its progenitor star's mass shedding rate and magnetic field strength.
An Australian-Italian team used the Murchison Widefield Array telescope to observe a cluster of galaxies in Abell 2877. The team discovered a radio 'jellyfish' structure with a steep spectrum that challenges current understanding. The discovery was made possible by the unique low-frequency capabilities of the MWA.
Researchers discovered three new FRBs with high dispersion measure from the Five-hundred-meter Aperture Spherical radio Telescope (FAST), indicating they happened billions of years ago. The findings suggest there could be as many as 120,000 detectable FRBs arriving on Earth every day.
Researchers found that most high-energy astrophysical neutrinos are born near quasars with massive black holes. This challenges previous theories suggesting only highest-energy neutrinos could be produced by these sources.
A team of scientists from Rochester Institute of Technology and Instituto Argentino de Radioastronomiá completed a yearlong pulsar timing study using two upgraded radio telescopes in Argentina. The observations provided accurate bounds to gravitational waves, increasing the sensitivity of existing pulsar timing arrays.
Scientists have confirmed that magnetars, extreme stars with strong magnetic fields, generate fast radio bursts (FRBs). The discoveries were made using four European radio telescopes and provide new insights into the origins of FRBs. The research aims to pin down how these extreme stars create brief blasts of radiation.
Researchers have successfully connected two optical atomic clocks in Italy and Japan, separated by 8700 km, using radio telescopes observing distant stars. This achievement could provide a global infrastructure for high-precision timekeeping and unlock new possibilities for studying fundamental physics and general relativity.
Astronomers used the Murchison Widefield Array (MWA) telescope to scan a patch of sky known to include at least 10 million stars. The study found no technosignatures, or signs of powerful radio emissions that could indicate intelligent life.
Researchers from Tokyo University of Science use a special approach to detect acetonitrile in a low-density region of the Sagittarius molecular cloud. They analyze radio wave absorption patterns to infer the presence of this complex organic molecule, shedding light on its distribution and potential role in the origin of life.
A team of astronomers has captured detailed radio maps of three nearby interstellar gas clouds, including the Orion A region. The maps reveal details as small as 60 times the size of our Solar System and will help improve our understanding of high-mass star formation.
Scientists successfully simulated the Square Kilometre Array (SKA) data at a scale of the massive future telescope using the Summit supercomputer and Adaptable IO System (ADIOS). The simulation generated 2.6 petabytes of data, highlighting ADIOS's efficiency in processing large datasets.
Scientists using the MeerKAT radio telescope have discovered a unique and previously-unseen flare of radio emission from a binary star system. The source is thought to be associated with an active corona, where two objects orbit each other approximately every 22 days.
Astronomers have discovered a rare form of carbon monoxide in the dust and gas disc around a young star, revealing it to be much heavier than previously thought. This finding provides new insights into the formation of planets and challenges existing theories about planetary system formation.
In a world first, an Australian-led team of astronomers has determined the exact location of a powerful one-off burst of cosmic radio waves using CSIRO's ASKAP radio telescope in Western Australia. The galaxy from which the burst originated was imaged by three of the world's largest optical telescopes and published in the journal Science.
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has enabled groundbreaking discoveries in pulsar and neutral hydrogen observations. With its ultra-wideband capabilities, FAST allows for the study of rotating radio transients in greater detail than ever before.
Researchers at KIT have discovered needle-shaped structures in positively charged plasma channels, which may explain why lightning does not always discharge at once. The discovery was made using high-resolution data from the LOFAR radio telescope.
Researchers used a global network of radio telescopes to detect a compact jet of material expanding at close to the speed of light. The jet's existence challenges previous models of binary neutron star mergers, which suggested it was not possible for such a structure to form.
Astronomers have discovered that fast radio bursts, which are exceptionally bright flashes of energy coming from deep space, do not emit at low frequencies. The Murchison Widefield Array and Australian SKA Pathfinder telescopes were synchronized to observe the same point in the sky, allowing researchers to capture the same view and gai...
A team of astronomers used the Moon as a reference point to measure the brightness of the Milky Way, helping them detect faint signals from hydrogen atoms in the infant Universe. This detection could confirm or refute theoretical models of the Universe's early evolution.
Researchers from Aalto University and international partners have imaged newly forming jets of plasma from a massive black hole with unprecedented accuracy. The study resolves the jet structure mere hundreds of black hole radii away from its launching site, revealing unprecedented details of the jet formation region.
Researchers demonstrated reliable transmission of stable frequency references over 300km fiber optic networks, enabling synchronization of radio telescopes. This technology could benefit astronomy, particularly for the Square Kilometer Array (SKA), allowing scientists to access the frequency standard anywhere.
Astronomers have identified benzonitrile, a specific aromatic molecule, in a cold molecular cloud of the Taurus region using radio spectroscopy. This finding provides insights into the composition of interstellar material and its potential incorporation into new stars and planets.
Astronomers detected radio waves from a neutron-star collision, confirming a new explanation for the phenomenon. The observations suggest a 'cocoon' model, where the jet gathers up surrounding material, producing broad electromagnetic radiation.
Researchers used two radio telescopes and several optical telescopes to study the complex mechanisms fueling jets in Centaurus A, a nearby radio galaxy. They found evidence of a galactic wind and stars existing further out than previously thought.
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a radio telescope that will survey more than half the sky each day, creating a three-dimensional map of the largest volume of space ever surveyed. This will help scientists better understand the history of the universe and the nature of dark energy.
Astronomers have identified a millisecond pulsar spinning at more than 42,000 revolutions per minute using the Netherlands-based Low Frequency Array (LOFAR) radio telescope. The discovery provides insights into the potential for finding ultra-fast pulsars and raises questions about the fastest-spinning pulsars in the universe.
Neal Katz, a theoretical astronomer at UMass Amherst, has received a Fulbright Scholarship to study and teach galaxy formation in collaboration with colleagues in South Africa. He will use computer simulations to advance understanding of galaxy formation and analyze data from the MeerKAT radio telescope.
Cornell University researchers have identified a distant cosmic source of 'fast radio bursts' emitting massive energy pulses from across the universe, exceeding 3 billion light-years away.
Scientists detected a brief but brilliant burst of radiation that provided new information about the cosmic web, a swirling gas and magnetic field between galaxies. The event allowed researchers to reconstruct the travel path of the signal to a precise line of sight, offering clues about the Universe's vast spaces.
Fast radio bursts (FRBs) emit non-radio emission, challenging models and suggesting severe consequences for host galaxies. The discovery of FRB 131104's gamma-ray counterpart opens possibilities for detecting long-lived counterparts using X-ray, optical, and radio telescopes.
The GaLactic and Extragalactic All-sky MWA survey has produced a catalogue of 300,000 galaxies observed by the Murchison Widefield Array, revealing unprecedented radio technicolour views of the sky.
Sweden's biggest contribution yet to the SKA has passed a major milestone with the delivery of an advanced feed horn for testing in Canada. The sensitive instrument will help astronomers map out the history of the universe and make measurements surpassing today's radio telescopes.
Researchers developed an algorithm that can stitch together astronomical measurements from around the globe, producing the first images of black holes. The algorithm uses a technique called interferometry and preserves continuity in the image by using a mathematical model inspired by rubber sheets and plastic wrap.
The scientists combined the Russian RadioAstron satellite with ground-based telescopes to produce a virtual radio telescope over 100,000 miles across. They discovered temperatures hotter than 10 trillion degrees in a quasar, challenging current understanding of quasar jets.
Astronomers have detected repeating fast radio bursts (FRBs) from an enigmatic source, suggesting an extremely powerful object that occasionally produces multiple bursts. The findings indicate the source is likely located beyond the Milky Way galaxy.
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.
Astronomers used a global network of radio telescopes to measure the distance to the Pleiades star cluster, resolving a long-standing controversy. The result is a precise measurement of 443 light-years, accurate to within one percent.
Scientists detect a split-second burst of radio waves from the Arecibo telescope, marking the first time such an event has been recorded using an instrument other than the Parkes radio telescope. The finding suggests that these mysterious pulses are truly of cosmic origin and may be caused by exotic astrophysical objects.
A team of astronomers has identified a pulsar that switches between emitting X-rays and radio waves, offering the first direct evidence of one kind of pulsar transforming into another. This phenomenon was observed in a small cluster of stars 18,000 light-years away in the constellation Sagittarius.
Scientists have discovered brief, intense radio bursts from the distant Universe using CSIRO's Parkes telescope. The flashes are believed to originate from up to 11 billion light-years away and could be detected every ten seconds.
Researchers have discovered two hot spots in the outer atmosphere of Betelgeuse, a cool red supergiant. The hot spots are separated by half the visual diameter of the star and have temperatures of around 4,000-5,000 Kelvin, much higher than expected.
The new telescope, with a 100m x 100m collecting area, will scan half of the sky daily and synthesize an image of the sky nearly one billion times per second. The CHIME telescope aims to map a quarter of the observable universe, helping scientists understand the history of the Universe and dark energy's role in its expansion.
A team of astronomers has mapped enormous outflows of charged particles from the centre of the Milky Way Galaxy, stretching over 50,000 light-years. The phenomenon is driven by many generations of stars forming and exploding in the Galactic Centre over the last hundred million years.
Researchers used historical data from the Very Large Array to identify similarities between underground nuclear explosions and atmospheric disturbances. By analyzing these patterns, they found that astronomical radio telescopes could potentially spot rogue nukes, complementing GPS systems' capabilities.
Australians and Koreans have linked their radio telescopes for the first time, creating a gigantic telescope spanning over 8,000 km. The combined system has 100 times the resolving power of the Hubble Space Telescope, enabling scientists to study distant galaxies in unprecedented detail.
Astronomers found a small, half-Jupiter-sized planet with a diameter of 60,000 kilometres orbiting an extremely dense pulsar, suggesting a unique formation process. The discovery reveals the possibility of a diamond-like structure in the planet's core due to its incredibly high density.
A team of astronomers using CSIRO's radio telescope discovered a small planet made of diamond orbiting an unusual star called PSR J1719-1438. The discovery provides insight into the evolution of binary systems and the formation of 'diamond planets', which are thought to be composed of crystalline material.
The SKA radio telescope has successfully linked its antennas over long distances using an optical fibre network, a key step towards observing distant galaxies in greater detail. The experiment saw six telescopes working together to observe a quasar 7.5 billion light-years away, revealing new insights into the universe.
A team of astronomers used the Moon to search for ultra-high-energy neutrinos from distant regions of space. They reported their findings in the December edition of the journal Astroparticle Physics, setting a new upper limit on the amount of such particles arriving from space.
CSIRO has upgraded a radio telescope at the University of Sydney, boosting its sensitivity and bandwidth to three times more than before. The upgrade demonstrates Australia's technological capabilities and will inform the design of the country's own ASKAP telescope.
Researchers have identified numerous previously unknown star-forming regions in the Milky Way, shedding light on the galaxy's structure and chemical evolution. The discovery allows for a better understanding of star formation processes and the distribution of heavy elements across the galaxy.
Researchers have discovered a massive cloud of cosmic gas and dust collapsing in on itself, which could help solve the mystery of massive star formation. The CSIRO radio telescope detected two types of molecules indicative of collapse, suggesting the gas is falling at an incredibly high rate.
Researchers have made the first direct radio image of a stellar coronal loop at star Algol, which may aid in understanding how space weather affects Earth. The coronal loop is roughly similar to those at the sun but with a more powerful magnetic field and larger size due to tidal effects.
Astronomers have found a giant magnetic loop stretching from one star to the other in the Algol binary system. The discovery was made using an international collection of radio telescopes and helps explain previous observations at X-ray and radio wavelengths.
Astronomers have created a breakthrough in finding natural cosmic tools to detect gravitational waves. Gamma-ray telescopes have guided radio astronomers to specific locations in the sky where they can discover new millisecond pulsars, which can serve as precise and stable clocks for detecting gravitational waves.
Astronomers are using a record-breaking 35-telescope array to measure the sky with extreme precision. The project aims to create a stronger, more precise reference grid for celestial positions.
Researchers observe transformation of an ordinary, slow-rotating pulsar into a superfast millisecond pulsar with an almost infinitely extended lifespan. The discovery provides direct evidence for the process of cosmic recycling, where matter from a companion star falls into a pulsar's gravity well, increasing its rotation speed.
The Compact Array Broadband Backend (CABB) project has upgraded CSIRO's radio telescope near Narrabri in NSW, increasing its bandwidth from 128 MHz to 2 GHz. This upgrade enables astronomers to capture more data from the sky faster and detect cosmic objects more quickly.
Astronomers have used the world's biggest radio telescope to study the brightest galaxies that NASA's Fermi Gamma-ray Space Telescope can see. The team found a correlation between active galaxies with the brightest gamma-ray emission and those with the fastest jets.