Astronomers detected a fast-moving jet from a neutron star with a strong magnetic field, challenging the long-held idea that magnetic fields prevent jets from forming. The discovery was made using the VLA, which revealed radio waves produced by the jet, characteristic of other jet-producing systems.
Researchers ran largest computer simulations of neutron star crusts to understand the possible sources of gravitational waves. They found that the material deep inside the neutron star is incredibly stiff, with 'nuclear pasta' shapes causing it to assemble into unique structures.
Researchers detected extended infrared emissions around RX J0806.4-4123, suggesting a 'fallback disk' of material or a pulsar wind nebula. The findings challenge current understanding of neutron star evolution and offer new avenues for study with the NASA James Webb Space Telescope.
Researchers at Indiana University are leading an experiment that could shed light on the existence of matter in the universe. The project aims to detect a small separation of electrical charges in neutrons, which would validate theories about the imbalance between matter and antimatter.
Astronomers used a continent-wide collection of radio telescopes to observe the aftermath of a neutron star merger and confirmed the presence of a narrow, fast-moving jet of material. The jet moved at nearly the speed of light and was likely powered by the gravitational energy released during the merger.
Astronomers have found a dense disk of material surrounding a young star, which may be the precursor to a planetary system. The discovery could revolutionize models of solar system formation and provide insights into our own cosmic neighborhood.
Researchers found that a small fraction of protons in neutron-dense objects significantly impact their stiffness, mass-to-size ratio, and cooling process. Protons are believed to determine several properties of the star due to their high energy content.
Researchers found that in neutron-rich objects, protons carry a disproportionate part of the average energy, moving faster than neutrons. The team analyzed data from CLAS experiments and observed a significant increase in the probability of protons having high energies as the number of neutrons increased.
A study at Thomas Jefferson National Accelerator Facility found that protons in neutron-rich nuclei have higher momentum than neutrons due to short-range correlations, which may impact neutron star dynamics. The research, published in Nature, confirms earlier hints and quantifies the effect for the first time.
The Spallation Neutron Source (SNS) has reached a record power level of 1.3 megawatts, achieving 94 percent accelerator beam availability. This milestone establishes a new baseline for operation and paves the way for researchers to conduct faster analyses using neutrons on various materials.
Researchers propose using gravitational waves to estimate the Hubble constant and measure the rate of the expanding universe. By detecting gravitational waves from rare black hole-neutron star binary systems, scientists can obtain an independent and precise measurement of their distance and velocity.
Researchers have determined the detailed chemical abundances of Ross 128, a red dwarf star that hosts an exoplanet similar to our Solar System's Jupiter. This helps estimate the makeup of Ross 128 b, indicating it should be rocky with a temperate climate.
An international team of astronomers tested the Strong Equivalence Principle using a unique triple star system. They found that even extremely dense neutron stars fall at the same rate as lighter objects, confirming Einstein's general theory of relativity.
A team of astronomers tested Einstein's theory of general relativity using a three-star system and found almost no detectable difference between the pulsar and inner white dwarf, indicating little room for alternative theories of gravity. The study confirms that relativity still applies even in extreme gravity systems.
A research team led by astronomers at the University of Warwick observed a jet of material streaming out from a merged star, confirming a key prediction about the aftermath of neutron star mergers. The observations were made using the Hubble Space Telescope and reveal that every neutron star merger likely creates a gamma-ray burst.
Researchers set limits on neutron star sizes by analyzing billions of theoretical models, refining estimates to within 1.5 kilometers. The study also explores the possibility of 'twin stars' with exotic properties, which are statistically rare and unlikely to be deformed during mergers.
An international team of astronomers detected molecules on an exoplanet, allowing it to be visualized. The technique reveals the planet's surface composition and temperature, providing new insights into planetary atmospheres. Future spectrographs will enhance this method, enabling more accurate characterization of planets.
Using ALMA, two teams of astronomers have confirmed the presence of three infant planets around a young star, HD 163296. The planets are located at distances of approximately 12 billion and 21 billion kilometers from the star, and were identified using a novel technique that analyzes gas flow patterns within a protoplanetary disc.
Researchers confirmed that last fall's union of two neutron stars caused a short gamma-ray burst, revealing a key relationship between binary neutron star mergers, gravitational waves and GRBs. Short gamma-ray bursts are the universe's most powerful electromagnetic events.
The Hubble Space Telescope has discovered the most distant star ever observed, Icarus, located 9 billion lightyears away. The star's brightness was amplified by gravitational lensing, allowing its detection.
Using a pioneering method, researchers discovered a massive neutron star with a mass of approximately 2.3 Solar masses. This discovery challenges the previous understanding of neutron star masses and opens new avenues for studying these extreme objects.
Researchers use neutron tomography to study teeth, root balls, batteries, and fuel cells with improved spatial resolution and faster image acquisition. This non-destructive method provides valuable information for optimizing material design.
A team of researchers used powerful supercomputers to calculate the nucleon axial coupling, which is central to understanding a neutron's lifetime. Their method offers a clear path to resolving the experimental discrepancy and provides new insights into fundamental forces of nature.
Physicists use powerful supercomputers to solve quantum chromodynamics equations, which governs how quarks and gluons interact within neutrons. The new calculation yields the highest-ever precision of nucleon axial coupling, a property that determines the strength of neutron decay into protons.
A team of astronomers has performed one of the highest resolution observations in astronomical history of a pulsar 6,500 light-years away, observing two intense regions of radiation around a rapidly spinning star. The observation could provide clues to the nature of Fast Radio Bursts, which may be amplified by plasma lenses.
A study using ALMA found a surprising distribution of star-forming cores, with fewer massive stars and more solar-mass stars than expected. This discovery may require reevaluation of the relationship between core mass and star mass.
Researchers from ITMO University have discovered a new mechanism for neutron star radio emission, based on the transitions of particles between gravitational states. This phenomenon is similar to laser amplification and was first observed in electrons on the surface of neutron stars, consistent with real experimental observations.
Astronomers have discovered an isolated neutron star with low magnetic field located beyond our Milky Way galaxy using the MUSE instrument on ESO's Very Large Telescope in Chile. The neutron star is surrounded by a ring of gas that includes neon and oxygen.
A study reveals that neutron star magnetic hot spots can survive for millions of years despite the overall magnetic field decay. The simulations show strong electric currents producing heat, explaining the strange behavior of magnetars like SGR 0418+5729.
Astronomers using the Hubble Space Telescope have discovered a blue supergiant star called Icarus, which is the farthest individual star observed. The team used gravitational lensing to magnify the star's light, revealing its true nature and providing insights into dark matter theory.
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 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.
A team of researchers has successfully extended the search range of an exotic gravity to short distances, demonstrating the highest sensitivity reported to date. The study uses a high-intensity pulsed neutron beam at the J-PARC facility, allowing for precise measurements of gravitational interactions.
Researchers analyzed sea star populations along the US west coast and found severe declines in southern California and the Channel Islands. Juvenile sea star mortality increased by approximately 90 percent, while ochre sea stars are a keystone species crucial to intertidal ecosystems.
New research confirms that 'Oumuamua, the first confirmed interstellar asteroid, originated from a binary star system. The study found that rocky objects like 'Oumuamua are far more likely to come from binary systems than single star systems.
Researchers at NIST and NIH developed a new method that uses movable silicon gratings to focus neutron beams, allowing for the examination of objects at unprecedented scales. This breakthrough could complement existing scanning techniques, enabling scientists to probe the interiors of materials without damaging them.
Researchers have developed a novel mathematical model combining general relativity with quantum vacuum polarization, enabling the existence of ultracompact stars and new stellar configurations. The study suggests that these stars could be detectable in future gravitational wave observatories.
Researchers have identified a fourth ULX as a neutron star, shedding new light on how these objects can shine so brightly. The study found unusual dip in the ULX's light spectrum attributed to cyclotron resonance scattering, revealing strong magnetic fields around the neutron star.
An amateur astronomer in Argentina captured the rare first optical light from a massive exploding star, providing valuable insights into the supernova explosion and the star's physical structure. The discovery was made using a new camera and allowed scientists to determine the type of star that exploded and the nature of the explosion.
BurstCube will detect gamma-ray bursts caused by massive star collapses and neutron star mergers, as well as solar flares. The mission uses miniaturized detector technology to study these high-energy events and their origins.
New observations of Tabby's Star by the Canary Island Observatories suggest that interstellar dust is causing the star's unusual brightness fluctuations, rather than an alien megastructure. The data, published in two articles, show that different colors in the star's light are being attenuated at varying rates.
A comprehensive review of 30 years' worth of research concludes that lone star ticks do not transmit the bacteria that cause Lyme disease, but can transmit other human illnesses such as ehrlichiosis and red meat allergy. The evidence, based on over 60 published articles, shows that lone star tick saliva is a barrier against Lyme bacteria.
Researchers have produced the first detailed images of a giant star outside our solar system, showcasing a nearly circular atmosphere with complex convection cells. The study confirms theories about the characteristics of these stars, providing insight into their future activity and appearance.
Astronomers studying the aftermath of a distant neutron-star merger are puzzled by the continued brightening of its afterglow, which defies initial expectations. New X-ray observations suggest a more complex emission process, potentially involving a hot 'cocoon' around a jet that shock-heated surrounding debris.
Astrophysicists have determined that the maximum mass of neutron stars cannot exceed 2.16 solar masses through a combination of theoretical and observational research. The result was achieved by applying universal relations to data on gravitational-wave signals and electromagnetic radiation from merging neutron star events.
Scientists at Mainz University have increased the yield of their ultracold neutron source by a factor of 3.5, achieving 8.5 UCN per cubic centimeter. This improvement enables more sensitive measurements to determine the lifetime of free neutrons and is crucial for experiments in fundamental research.
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.
Researchers at MSU develop a magnetic waveguide to sort and store neutrons based on their quantum state, enabling spintronics research. The breakthrough uses magnetic reflection to separate neutrons with different spins, opening up new possibilities for studying electronic devices.
A team from Aarhus University has discovered a star with similar characteristics to the Sun, allowing for the observation of its 7.4-year cycle. The star's heavy elements led to stronger magnetic field variability and surface rotation patterns. This study could help understand how the Sun affects our climate.
A team of researchers found that the star's light appears to dim and brighten due to different amounts of dust blocking various wavelengths of light. The study rules out alien megastructures as a cause, but raises the possibility of other phenomena being behind the dimming.
Researchers from Louisiana State University have collected new data on KIC 8462852, also known as Tabby's Star, which has been dimming and brightening sporadically. The study suggests that dust is likely the cause of these changes, blocking different colors of light at varying intensities.
A new study published in Nature shows that the mass of a galaxy's central black hole determines when its star formation history stops. The study found a continuous interplay between black hole activity and star formation throughout a galaxy's life, with bigger black holes quenching star formation faster.
The observation of two neutron stars merging generated tiny ripples in spacetime called gravitational waves, detected by LIGO detectors on Earth. This event also triggered an explosion studied by hundreds of astronomers worldwide, marking a major breakthrough in astrophysics and offering new tools for observing the universe.
A team of astronomers discovered massive clouds of gas and dust orbiting the star RZ Piscium, which could have formed from destroyed planets. The star's unusual dimming episodes suggest it is a young Sun-like star with a debris disk.
The collision produced gravitational waves and detected radio waves, which led to the discovery of a 'cocoon', a broader outflow of radio-emitting material, rather than a fast-moving jet. This finding provides more insight into short gamma-ray bursts.
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.
Astronomers have imaged the surface of a red giant star, π1 Gruis, in unprecedented detail. The star's photosphere features just a few convective cells, or granules, which are much larger than those on our Sun.
The neutron star collision has challenged existing theories of dark energy and gravity, ruling out a class of dark energy theories that modify gravity. The observation also supports the simplest theories, suggesting that the timing between gravitational waves and light is crucial in understanding these phenomena.
Researchers at UNIGE detected an exoplanet with a highly inclined orbit around a red dwarf star, evading circular motion and instead following a polar path. This unusual behavior is attributed to the presence of an unknown companion planet that disturbs its path.
Researchers at the University of Helsinki designed an instrument that can detect and identify explosive materials in unexploded artillery shells using prompt gamma neutron activation analysis. The instrument achieves a precision better than 1% within 30 minutes, allowing for non-destructive detection.