Researchers used heavy ion accelerator to demonstrate nickel 78's stability, finding it maintains spherical shape like doubly magic isotope, but with a surprise: lighter isotones may lose magic nature due to deformation.
Astronomers have observed a unique X-ray signal from a binary neutron star merger 6.6 billion light years away, which is highly likely powered by a magnetar. This discovery provides new insights into the physics of neutron stars and challenges existing theories on the ending of a binary neutron star merger system.
A team of researchers has discovered a stellar flare ten times more powerful than anything seen on our sun, erupting from an ultracool star almost the same size as Jupiter. The star, ULAS J224940.13-011236.9, is only a tenth of the radius of our own sun and is considered a brown dwarf by some definitions.
A team of international astronomers, including UNLV's Bing Zhang, has discovered a new way to spot neutron star mergers using a bright X-ray burst detected by NASA's Chandra X-ray Observatory. The observation validated predictions made in 2013 and provided a rare glimpse into how neutron stars are formed.
Researchers discovered the diameter of a giant red giant star 2,674 light-years away and a sun-like star at 700 light-years, setting a record for the smallest star measured. The team used asteroid occultations to calculate the stars' sizes with high accuracy.
Astronomers used asteroid occultations to measure the smallest apparent size of a star on the night sky, revealing the diameter of a giant star and a sun-like star. The new method provides ten times better resolution than standard lunar occultation methods.
Astronomers from the University of Warwick detected a heavy metal planet fragment orbiting a white dwarf, which is the remains of a dead star. The fragment, rich in iron and nickel, has survived a system-wide cataclysm that followed the death of its host star.
Physicists have solved a 50-year-old mystery in beta decay, a process that drives stellar explosions and synthesizes elements. Using advanced computing power, researchers found that the beta decay rate for an atomic nucleus is more complicated than initially thought.
A research team has successfully computed millions of highly accurate atomic data for neodymium ions, enabling studies of the origin of precious metals like gold and platinum. The findings show that the light of a kilonova, emitted by neutron star mergers, contains abundant heavy elements.
Astronomers have discovered a binary star system with PDS 27 and its companion just 4.5 billion km apart, making them the closest high-mass young stellar objects in binaries resolved to date. This discovery provides a valuable laboratory to test theories on high mass binary star formation.
Astronomers confirm the existence of a hot Jupiter-like planet, Kepler-1658 b, orbiting an evolved star. The discovery, led by University of Hawaii graduate student Ashley Chontos, provides new insights into planetary interactions and the rarity of planets around similar stars.
Researchers observed that massive stars losing mass to companion stars before exploding can create Type Ib or IIb supernovae. Stellar winds also play a role in the process, especially for high-mass stars.
Researchers at Oak Ridge National Laboratory are developing techniques to combat antibiotic-resistant bacteria using neutron scattering, while also studying the impact of higher CO2 levels on tree growth in temperate forests. These findings could lead to improved antibiotics and better climate modeling.
Researchers from the University of Luxembourg have demonstrated a comprehensive understanding of neutron scattering techniques for analyzing magnetic materials. The study focuses on analysis techniques for superconductors, permanent magnets, shape-memory alloys, ferrofluids and other magnetic materials.
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.
A volunteer astronomer found an ancient white dwarf star, LSPM J0207, ringed by dust and debris. The discovery challenges current models of planetary systems and may provide insights into the distant future of our solar system.
Researchers from UCL and Flatiron Institute develop technique to calculate gravitational wave data, enabling accurate measurement of Hubble constant. By observing 50 binary neutron stars over the next decade, scientists can resolve the long-standing debate on the universe's expansion rate.
Research groups calculate the signature of a phase transition in gravitational waves emitted by merging neutron stars, which could reveal the presence of quark matter. A phase transition may occur when densities exceed atomic nuclei and temperatures reach 10,000 times those in the Sun's core.
Measurements of gravitational waves from binary neutron stars will definitively resolve the debate on the universe's expansion rate. By observing 50 binary neutron stars over the next decade, scientists can calculate the Hubble constant accurately, resolving the conflict between conflicting measurements.
Researchers have reproduced an exotic form of magnesium, magnesium-40, which has led to unexpected findings about its nuclear structure. The study suggests that Mg-40 may be football-shaped, with the added neutrons forming a halo nucleus, and this discovery challenges current theories.
A new study finds that a sea star wasting disease and warmer sea surface temperatures led to the dramatic decline of sunflower starfish in both nearshore and deep waters. This collapse has broader effects on kelp beds and other marine ecosystems.
Researchers led by Penn State astronomer Pragati Pradhan found that stellar winds, composed of protons, electrons, and metal atoms, contain dense clumps. The Chandra data revealed a 'Compton shoulder' indicating back scattering by surrounding matter, providing new insights into star environments.
Astronomers have detected a new component in the death of massive stars, linking gamma-ray bursts and hypernovae. The study reveals an additional hot cocoon generated around the jet, explaining differences between GRBs and hypernovae.
A Northwestern University-led team captures the exact moment a star collapsed to form a compact object like a black hole or neutron star, revealing evidence of an accreting black hole or neutron star. The event, known as AT2018cow, was detected in the Hercules constellation and emitted remarkable bright glow.
A new study by INSEAD researchers found that collaborating with a creative 'star' increases the chances of becoming a star and boosts innovators' creativity. Working alongside a star designer significantly enhances the ability to create breakthrough innovations through skills such as creative synthesis.
A Northwestern University-led team captures the moment a star collapsed to form a compact object, such as a black hole or neutron star. The team used multiple imaging sources and a comprehensive approach to study the object's makeup, finding evidence of hydrogen and helium.
Astronomers have observed a rare supernova that provides a unique glimpse into the physics of black hole or neutron star creation. The object, known as AT2018cow, is thought to be the formation of an accreting black hole or neutron star.
Researchers identified hydrogen-rich debris shed by a companion star, revealing it was likely a red giant or similar star that made its partner go supernova. This discovery sheds light on the types of companions that trigger Type Ia supernovae, which are used for cosmological studies.
Stellar winds from infant stars in the Orion Nebula disrupt the formation of new stars by blowing away seed material. The winds create a bubble that regulates physical conditions and influences star formation activity.
A massive stellar flare on a baby star has been spotted by University of Warwick astronomers, revealing how it could create the building blocks for future planets. The flare's x-rays are thought to affect the formation of chondrules, flash-melted calcium-aluminium-rich grains that eventually coalesce into orbiting planets.
Researchers investigate pion condensation in neutron-rich tin isotope, finding critical density of around two times normal nuclear density. The discovery provides new insights into rapid cooling process of neutron star cores.
Researchers have developed a new method to non-destructively measure the salt content of concrete structures using a compact neutron source. This allows for efficient inspections without damaging the structure, which is crucial for aging infrastructure such as bridges and tunnels.
A team of international researchers has captured the tensor-force originated high-momentum proton-neutron pairs using a proton scattering experiment. The study reveals the dominance of particular nuclear structures, shedding light on the nuclear force's non-central component and its effect on nuclear structure.
Astronomers have discovered a young star, Gaia 17bpi, undergoing a rare 'growth spurt' - a FU Ori stellar outburst. The event reveals insights into the development of these distant stellar objects and helps solve longstanding mysteries surrounding star formation.
Researchers isolated and measured the weak force between protons and neutrons for the first time, revealing a mirror-asymmetric component of the force. The experiment used a unique apparatus to control neutron spin direction, detecting gamma rays emitted by interacting particles.
Scientists developed a nonmagnetic high-pressure cell to preserve neutron spin polarization, enabling three-dimensional analysis of electron spin arrangements. This technique has potential applications in developing new materials with multiferroic properties and controlling spins.
Astronomers have discovered two stars, MM 1a and MM 1b, orbiting each other in the young star system. The team used ALMA to image the surrounding gas and dust discs, revealing a massive companion star with a mass ratio of 80:1.
Scientists from Swansea University and international partners use x-ray and neutron imaging to assess fusion component robustness, yielding valuable data for development. The research aims to harness nuclear fusion safely and efficiently, overcoming temperature challenges in extreme environments.
The LIGO and Virgo collaborations have detected 10 stellar-mass binary black hole mergers and one neutron star merger, with six of the black hole events previously reported. The new detections include GW170729, GW170809, GW170818, and GW170823, which are included in a new catalog of gravitational-wave events.
Researchers have created updated climate models for the seven planets around TRAPPIST-1, revealing unexpected similarities and differences with our solar system. The study suggests that some planets may have evolved like Venus due to an extremely hot early stellar phase, while others could be habitable ocean worlds.
Researchers have discovered a binary star system containing massive Wolf-Rayet stars that are spinning extremely fast, producing incredibly fast winds. The system's wind speeds are 100,000 times quicker than a hurricane on Earth, while the surrounding dust cloud moves at a much slower pace, suggesting unequal gas distribution.
Researchers have discovered a new massive star system dubbed 'Apep,' featuring a slow-moving dust pinwheel that defies current theories on how large stars die. The system's unusual rotation is thought to cause the star to collapse at its poles before the equator, producing a gamma-ray burst.
Astronomers have discovered a rare gamma-ray binary system, allowing for the study of particle acceleration in a unique environment. The system, consisting of a massive star and a rapidly rotating neutron star, was detected emitting high-energy particles accelerated by its strong magnetic field.
Two teams of astronomers uncovered the presumed precursor star in pre-explosion photos taken in 2007, shedding light on stellar evolution and mass distribution. The discovery suggests two possible scenarios: a single massive star or a binary-star system.
Astronomers detect a super-Earth orbiting Barnard's Star, with the planet having a mass at least 3.2 times that of Earth, and orbits its host star in roughly 233 days. The exoplanet lies close to the snow line, making it inhospitable for life as we know it.
Astronomers have discovered a planet, known as Barnard's star b, which orbits around its host star every 233 days. The 'super-Earth' is estimated to be a frozen world with surface temperatures of -170 degrees Celsius, but could potentially become more hospitable if it has a substantial atmosphere.
Astronomers have discovered a cold Super-Earth orbiting around the Barnard's star, which is about six light-years away from Earth. The planet candidate has a minimum of 3.2 Earth masses and orbits its red star every 233 days near the snow-line.
Astronomers have found a candidate planet, named Barnard's star b, orbiting the red dwarf star every 233 days. The cold super-Earth is estimated to be around 3.2 times the size of Earth and has a temperature of -150°C.
Astronomers at Carnegie Institution for Science have discovered a frozen Super-Earth orbiting Barnard's star, just six light-years from Earth. The planet has at least 3.2 times Earth's mass and orbits its star every 233 days at a distance where water would be frozen.
A new study predicts that gravitational wave readings from neutron star collisions can accurately measure the Hubble constant, improving current disputed results. With 25 readings, accuracy will reach 3%, narrowing to 1% with 200 readings.
Researchers have identified a direct relative of the historic neutron star merger that produced the first simultaneous detection of light and gravitational waves. The newly described object, named GRB150101B, shares remarkable similarities with GW170817 and suggests that these events may be from the same family of objects.
A young star with a protoplanetary disc has been discovered to have four Jupiter and Saturn-sized planets in orbit around it. The system's extreme range of orbits raises questions about how such a system might have formed.
Researchers have discovered an ultra-stripped supernova, a rare type of supernova believed to play a role in forming binary neutron star systems. The discovery advances understanding of gravitational waves and the origin of precious metals.
Astronomers have observed a massive star's death, creating a compact neutron star binary system. The explosion was unusually faint and the star had an unseen companion that siphoned away most of its mass.
A Caltech-led team observed a faint and rapidly fading supernova, suggesting the presence of an unseen companion gravitationally siphoning away the star's mass. The explosion resulted in a dead neutron star orbiting its dense companion, marking the first time scientists have witnessed the birth of a compact neutron star binary system.
Researchers used the n_TOF facility to explore a neutron channel that could increase the destruction rate of Be-7 and resolve the Cosmological Lithium Problem. However, the results indicate that neutron channels alone are not enough to resolve the issue, leaving scientists with additional challenges to address.
Researchers confirm collision of white dwarf and brown dwarf stars using ALMA observations. The debris from the explosion reveals the presence of lithium and unusual element isotopes.
Researchers have detected extremely high-energy gamma rays from the microquasar SS 433, which is located 18,000 light years from Earth. This discovery sheds light on astrophysical processes and may offer insights into star systems in distant galaxies.
The RIT-led collaboration simulates neutron star mergers, linking them to the creation of heavy elements like gold and platinum. The project aims to improve understanding of binary neutron star merger processes, including electromagnetic signals and strong gravitational wave signatures.
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.