Researchers at A1 Collaboration successfully produced hydrogen-6 in an electron scattering experiment, challenging current understanding of multi-nucleon interactions. The measurement revealed a stronger interaction between neutrons within the nucleus than expected, indicating a lower ground-state energy for ⁶H.
A new study proposes a third category of galaxies: red star-forming. These galaxies produce low-mass stars and may have played a significant role in the universe's history. The findings could change our understanding of galaxy evolution, star formation, and the life cycle of galaxies.
Physicists have measured a nuclear reaction that can occur in neutron star collisions, providing direct experimental data for a process previously only theorized. The study provides new insight into how the universe's heaviest elements are forged, with potential applications in nuclear reactor physics.
The StarBurst Multimessenger Pioneer will detect short-duration bursts of gamma-rays from neutron star mergers, providing fundamental insight into these extreme explosions. With an effective area four times greater than the Fermi Gamma-ray Burst Monitor, it will increase the detection rate of EM counterparts to NS mergers.
An international team has traced radio pulses to a binary system with a dead star, where a red dwarf and white dwarf orbit each other, emitting a radio blast every two hours. This discovery shows that the movement of stars within a binary system can also emit long-period radio bursts.
A team of astronomers has discovered four mini-Earth exoplanets around Barnard's Star, the nearest single star to Earth. The exoplanets are rocky and orbit their home star in a matter of days, with one being the least massive planet discovered using radial velocity technique.
Astronomers have found solid evidence for four tiny planets circling Barnard's Star, with masses only 20-30% that of Earth. The discovery was made using the MAROON-X instrument and confirms previous hints from another study.
A new machine learning algorithm can fully characterize systems of merging neutron stars in under a second, compared to traditional methods which take around an hour. This allows for rapid localization of the source and pointing of telescopes towards the merging neutron stars.
New York University physicist Glennys Farrar introduces a theory explaining the origin of Ultrahigh Energy Cosmic Rays, created through Binary Neutron Star mergers. This process generates powerful magnetic outflows and gravitational waves, providing a groundbreaking tool for understanding cataclysmic events.
A new study reproduces the formation and evolution of a magnetar using numerical simulations, providing insights into their origin. The research supports the dynamo action theory, which suggests that magnetic fields are amplified through complex motions in proto-neutron stars.
Researchers have discovered a strong connection between the long ringdown phase of post-merger gravitational waves and the properties of dense regions in neutron-star cores. Analyzing this phase can significantly reduce uncertainties in the equation of state at very high densities, shedding light on what neutron stars are made of.
Scientists studying neutron 'starquakes' hope to gain new insights into the properties of neutron stars, improving our understanding of the universe. This research has potential implications for fields like health, security, and energy.
Researchers identified a new process leading to formation of low-field magnetars, solving the mystery that puzzled scientists since their discovery in 2010. The team used advanced simulations to model magneto-thermal evolution of neutron stars, finding that a specific dynamo process can generate weaker magnetic fields.
A new Zap research paper validates the company's sheared-flow-stabilized Z-pinch fusion approach by measuring nearly isotropic neutron energies, indicating stable thermal plasma. This achievement provides a benchmark milestone for scaling fusion to higher energy yields and confidence in reaching higher performance on the FuZE-Q device.
The discovery of a strong, local increase in two-neutron separation energies when the number of neutrons increases from 92 to 93 provides unique insights into the nuclear structure of neutron-rich lanthanum isotopes. This finding calls for further studies and challenges current nuclear mass models.
The Hubble Space Telescope has discovered a rare blue lurker star in the open cluster M67, which is spinning much faster than expected. The star's unusual behavior suggests it siphoned material from a companion star, leading to its high spin rate and unique evolutionary history as part of a triple-star system.
Astronomers at MIT used a novel technique to determine the precise location of a fast radio burst, finding it likely originated from the magnetosphere around a rotating neutron star. The study provides conclusive evidence that fast radio bursts can emerge from this highly magnetic environment.
A study by McGill University researchers has provided the clearest evidence yet that some fast radio bursts originate from neutron stars. The analysis of a single FRB signal showed striking similarities with pulsars, a well-studied class of radio-emitting neutron stars.
Scientists have imaged a star outside our galaxy for the first time, using ESO's Very Large Telescope Interferometer. The star, WOH G64, is a red supergiant in its last stages before becoming a supernova, and the image shows a unique egg-shaped cocoon of gas and dust surrounding it.
Scientists have found that black holes inherit their magnetic fields from their parent stars, specifically the surrounding disk of swirling matter during collapse. This discovery resolves a longstanding mystery and opens doors for further studies of jets.
Researchers from DTU have discovered a neutron star that rotates at an astonishing 716 times per second, making it one of the fastest-spinning objects ever observed. The neutron star is part of an X-ray binary star system and is located in the Sagittarius constellation.
Astronomers have studied the last unexplained historical supernova from 1181 AD, known as SN 1181, in detail. The team discovered a 'zombie star' at its center and dandelion-shaped filaments emanating from it.
Astronomers have observed a black hole triple system for the first time, featuring a central black hole consuming a star and a distant companion that orbits every 70,000 years. The discovery raises questions about the origins of the black hole itself.
A new study suggests that Betelgeuse's pulsing is due to an orbiting companion star known as the 'Betelbuddy'. The star acts like a snowplow, pushing light-blocking dust out of the way and making Betelgeuse appear brighter. Researchers used computer simulations to confirm this hypothesis, ruling out other possible causes.
Researchers from the Universiteit van Amsterdam and other institutions show that axion clouds around neutron stars could provide a new way to observe these elusive particles. The formation and properties of these clouds are studied, offering new opportunities for axion research and potentially solving the dark matter puzzle.
Researchers propose excited states of neutrons could explain contradictory measurements of average lifetime. These states would have slightly higher energy and different lifetimes, resulting in significant discrepancies between measured results.
Astronomers have discovered an exoplanet orbiting Barnard's star, located six light-years away, which has at least half the mass of Venus and orbits its star in just over three Earth days. The discovery was made using ESO's VLT and confirms the existence of a new exoplanet candidate, while also hinting at the presence of three more.
Researchers from the University of Jyväskylä have measured more detailed data on the magic N=50 neutron shell closure in the silver isotope chain. The new information improves state-of-the-art theoretical models, benefiting the global description of the atomic nucleus.
Oak Ridge National Laboratory scientist Matthew Loyd has been selected for a DOE Early Career Research award to develop a high-count-rate, high-resolution neutron camera. The detector will improve neutron detection at high count rates and enable observing weak data signals in experiments.
Convection motions have been tracked in detail on a red giant star for the first time, providing new insights into stellar behavior. The observations reveal giant, hot bubbles of gas appearing on the surface and sinking back into the star's interior faster than expected.
Dr. Zewei Xiong has received an ERC Starting Grant to study collective neutrino oscillations in supernovae and neutron-star mergers. His project NeuTrAE aims to clarify lingering puzzles regarding neutrino flavor evolution, a crucial aspect of particle and nuclear astrophysics.
Researchers unveil previously unseen properties of neutron stars through gravitational wave analysis, providing insight into internal composition and dynamic material properties. The study places observational constraints on viscosity within neutron stars.
Researchers study magnetic ground state and spin dynamics of bilayer nickelate La3Ni2O7-δ using inelastic neutron scattering. They find strong interlayer magnetic exchange coupling, unlike cuprate and iron-based superconductors.
Researchers have proposed a new scenario for rapid neutron capture process (r-process) nucleosynthesis in common envelope jet supernovae (CEJSNe), producing the greatest abundance of elements heavier than lanthanides. This finding suggests that CEJSNe is critical for explaining the characteristics of r-enhanced metal-poor stars.
Astronomers using Georgia State University's CHARA Array have identified large spots on the surface of Polaris, also known as the North Star. The observations provided the first glimpse of what the surface of a Cepheid variable looks like, revealing a diameter 46 times larger than the Sun.
Researchers investigated the effects of neutron irradiation on high-power thyristors used in quench protection systems for Tokamak fusion devices. The study revealed that neutron exposure can lead to increased leakage current and degradation of electrical performance, posing a risk to reactor safety.
Scientists have captured the first-ever image of an S-shaped jet coming from a confirmed neutron star, providing strong evidence for precessing jets. The discovery was made using the MeerKAT telescope and reveals valuable insights into the extreme physics behind the launching of the jet.
Astronomers have uncovered 21 neutron stars in wide orbits around stars like our Sun, revealing the first dark neutron star population. The discovery was made possible by the European Space Agency's Gaia mission, which scanned the sky and measured wobbles of over a billion stars.
Researchers have proposed a new model explaining neutron star glitches, suggesting that the power-law behavior of glitch energies is due to the formation of twisted clusters of superfluid vortices. The study found that the exponent for the power-law behavior closely matched the observed data.
New simulations show that neutrinos created during neutron star collisions can be trapped at the interface of merging stars and interact with matter for 2-3 milliseconds. This brief out-of-equilibrium phase is crucial in understanding the physics of these extreme events.
An international team of astronomers found that most nearby young star clusters belong to just three families, which formed in massive star-forming regions. These star clusters also left traces on Earth, including the Local Bubble and iron isotopes in the crust.
Astronomers have detected a neutron star spinning at an unprecedentedly slow rate, defying the typical mind-bending speeds of these ultra-dense stars. The object emits radio signals every 54 minutes, offering new insights into its complex life cycle and potential implications for our understanding of stellar objects.
Astronomers from the University of Sydney and CSIRO have detected a slow-spinning neutron star with a period of nearly an hour, breaking all known rules. This discovery provides new insights into the complex life cycles of stellar objects and may prompt a reconsideration of our understanding of neutron stars or white dwarfs.
Researchers created a novel composite material by adding Sm2O3 micron plates to boron-containing polyethylene, improving thermal stability, mechanical strength, and radiation shielding properties. The material showed excellent performance in blocking neutron and gamma radiation, with up to 98.7% blockage at 15 cm thickness.
Astronomers uncover evidence of a massive star's quiet demise into a black hole without a supernova explosion. The VFTS 243 system shows minimal signs of an explosion, offering insight into stellar evolution and collapse theories.
The newly discovered SPECULOOS-3b is an Earth-sized, likely airless planet orbiting a nearby ultracool dwarf star. The planet's extremely close proximity to its star has likely vaporized any atmosphere, allowing scientists to study its surface composition and history in unprecedented detail.
Scientists propose a new nucleosynthesis process, νr-process, which operates when neutron-rich material is exposed to high neutrino flux. This process can produce rare isotopes present in the solar system, including p-nuclei, previously poorly understood.
A team of astronomers and citizen scientists has discovered a planet in the habitable zone of an unusual star system, including two stars and potentially another exoplanet. The newly discovered planet, TOI 4633 c, boasts the second-longest orbit of any planet discovered with TESS data.
The new software can detect gravitational wave signals from neutron star collisions more accurately, allowing for faster alerts and enabling further research. This improvement will help scientists better understand heavy element production, including gold and uranium, and the behavior of neutron stars.
An international team of researchers, including those from the University of Geneva, detected a giant magnetar eruption coming from a neutron star with an exceptionally strong magnetic field. The discovery was made using ESA's satellite INTEGRAL and confirms that magnetars are young neutron stars.
An international team of scientists used quasi-elastic neutron scattering to set a benchmark for a mixture of lithium salt and organic polymer electrolyte. This could enable more energy-dense electrodes and result in more powerful lithium batteries.
The Spallation Neutron Source at Oak Ridge National Laboratory is receiving a major upgrade thanks to US neutron science facility Jefferson Lab. The final cryomodule has been successfully delivered and will double the power capability of the linear accelerator, enabling next-generation neutron science research. This delivery marks the ...
Physicists calculated that neutron stars can heat up quickly due to energy transfer from dark matter particles, providing a potential way to detect dark matter. This process could reveal the nature of dark matter and its interactions with regular matter.
A team of researchers, including Tom Maccarone, discovered a new phenomenon in the interaction between relativistic jets and neutron stars. The findings suggest that a thermonuclear burst occurs on the surface of neutron stars, leading to low-energy X-ray production.
Researchers have discovered unique electromagnetic signals in the debris of a neutron star merger, which could provide new constraints on axion-like particles and their potential role in dark matter. The findings were made using data from NASA's Fermi-LAT gamma-ray telescope.
Researchers at Linköping University developed improved neutron mirrors coating silicon with iron and silicon mixed with boron carbide to increase efficiency in material analysis. This enables more neutrons to reach instruments, improving experiments.
Researchers have detected tellurium in a kilonova afterglow, indicating that neutron star mergers can create rare heavy elements. This discovery sheds light on the formation of elements heavier than iron and provides new insights into the universe's chemical composition.
Researchers have discovered a unique signature of planetary material ingestion on the surface of a white dwarf star, WD 0816-310. The team observed a concentration of metals imprinted on the star's surface, indicating that the magnetic field played a key role in this process.
Researchers use James Webb Space Telescope to observe Supernova 1987A and detect ionised argon and sulphur atoms, providing conclusive evidence for a neutron star's presence. The discovery sheds light on the formation of heavy elements and the nature of compact objects in supernovae.
The James Webb Space Telescope has revealed conclusive evidence of a neutron star in the remnant of Supernova 1987A, which was once thought to be a black hole. The observations confirm emission lines from highly ionized gas near the explosion site, indicating intense ultraviolet and X-ray radiation.