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.
The James Webb Space Telescope has identified six likely rogue worlds, including the lightest ever found with a dusty disk around it. These objects offer insights into how stars and planets form, suggesting that gas giants can form in disks around young 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.
Astronomers have discovered a nearby star that rotates faster than expected, with anomalies in its stellar rotation profile. This finding provides insights into fundamental stellar strophysics and challenges current understanding of stellar dynamics and magnetic dynamos.
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.
Astronomers have used Hubble and SOFIA to study the HM Sge binary star system, which experienced a sudden increase in brightness 40 years ago. The team has found that the system's temperature has increased, but paradoxically faded slightly, raising questions about its long-term behavior.
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.
The newly discovered exoplanet, nicknamed Phoenix, has a surprisingly large and dense atmosphere, challenging current understanding of planetary evolution in extreme environments. Scientists estimate that the planet will survive for only 100 million years before dying due to its proximity to the star.
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 discovery of SPECULOOS-3 b is the second of its kind around an ultra-cool dwarf star and offers opportunities for life on orbiting planets to develop due to the star's long lifespan. The planet takes 17 hours to complete an orbit, making days and nights endless.
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.
The SPECULOOS project has discovered an Earth-sized exoplanet around SPECULOOS-3, a nearby ultra-cool dwarf star. The planet, named SPECULOOS-3 b, is similar in size to our own planet and orbits the star in just 17 hours, resulting in constant day and night conditions.
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 ...
Researchers at Kyushu University discovered that baby stars expel plumes of dust, gas, and electromagnetic energy in a phenomenon called 'interchange instability', releasing magnetic flux within the protostellar disk. This finding sheds new light on how baby stars develop and may be crucial for understanding star formation.
Researchers discovered a rare binary system with a magnetic massive star, surrounded by a beautiful nebula. The more massive star appears younger than its companion, suggesting a merger event that created the surrounding cloud.
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 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 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 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 found nine out of 40 studied systems have perfect alignment, suggesting planetary systems may prefer an orderly configuration. This could be beneficial for life forming in those systems, as misaligned stellar companions can disrupt planetary stability.
The James Webb Space Telescope has found direct evidence for emission from a probable young neutron star at the site of the recently observed supernova SN 1987A. Spectral analysis revealed strong signals due to ionized argon and five times ionized argon, indicating high-energy radiation from the compact object.
A new study published in Science provides conclusive evidence for the presence of a neutron star at the center of supernova SN 1987A, solving a decades-long mystery. The detection was made using the James Webb Space Telescope and reveals narrow emission lines from ionized argon and sulphur atoms.
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.
Astronomers have finally detected a compact source of ionizing radiation at the center of Supernova 1987A, likely a neutron star. The detection was made possible by the James Webb Telescope's high resolution and new instruments, resolving decades-old mystery about the supernova's final product.