A team of researchers used radioactivity in meteorites to study the cosmic origin of heaviest elements, shedding light on violent stellar explosions. The study found that specific astronomical events, such as neutron star collisions, likely created these heavy elements.
Scientists have uncovered a gigantic cosmic particle accelerator after tracing a ghostly neutrino back to a shredded star. The detection provides evidence that tidal disruption events can be powerful natural particle accelerators.
Research by Cornell University's ILR School found that collaborating with a star employee reduces non-star employees' credit and gains in professional status during successful collaborations. However, it can mitigate or outweigh the loss of professional status associated with collaborative failure.
A team of scientists has discovered a planetary system with a backward-rotating star, K2-290, which exhibits stellar-planetary misalignment. The star's rotation is opposite to the planets' orbits, with a tilt of approximately 124° relative to their orbits.
Researchers have mapped the orbit of a rare Nitrogen-rich Wolf-Rayet star in the WR 133 binary system, marking the first-ever visually observed orbit of this type. The team determined the dynamical mass of both stars, with the WN star having 9.3 times more mass than our Sun.
Researchers from University of Jyväskylä studied nuclear charge radii of exotic potassium isotopes using collinear resonance ionization spectroscopy. The results showed that the potassium isotope with a neutron number of 32 does not conform to magic neutron number criteria, challenging current understanding of nuclear forces.
A team of researchers used novel data analysis methods and Einstein@Home computing power to track down a neutron star's gamma-ray pulsations in NASA's Fermi Space Telescope data. The study reveals the existence of a rapidly rotating neutron star in orbit with a stellar companion about six times the mass of our Sun.
Researchers observed complex magnetic field behavior in a 'radio-loud' magnetar, deviating from previous theories. The findings suggest that the radio pulses originate from loops of magnetic field lines connecting two closely spaced poles.
A team of scientists has found evidence of alpha clusters in heavy nuclei, which challenges our understanding of neutron star structure and nuclear interactions. The discovery provides new insights into the process of alpha decay and has important implications for the study of neutron stars and their role in the universe.
Researchers detected high-energy X-ray emissions around a group of neutron stars, known as the Magnificent 7, which could be attributed to theorized axions or dark matter. The study uses supercomputing and data analysis to predict axion production in neutron star cores.
Researchers used innovative methods to calculate limits of atomic nuclei up to medium-mass nuclei, revealing new isotopes and a roadmap for verification. The study provides insights into the structure of neutron-rich nuclei and their existence, shedding light on fundamental interactions.
Scientists discovered a rare magnetar in the Sculptor constellation as the source of giant gamma-ray burst GRB 200415A. The burst was powerful enough to disrupt mobile phone reception and shed light on the universe's early history.
Scientists have discovered a rare cosmic phenomenon - an 'Old Faithful'-like eruption of light flashing about once every 114 days on a nearly predictable schedule. The flare is caused by a black hole ripping at a star, creating a regular series of tidal disruption events.
A new study by Durham University and colleagues suggests that galaxy mergers could shut down star formation in the early universe, affecting galaxy growth. The researchers observed a massive galaxy, ID2299, which ejected half of its gas into the intergalactic medium due to the merger.
The Hubble imaging Probe of Extreme Environments and Clusters (HiPEEC) survey investigates how star clusters form and evolve during galaxy mergers. The study reveals large and rapid variations in star cluster properties, with the most massive clusters formed towards the end of the merger phase.
Researchers at Oak Ridge National Laboratory have accelerated a research engine that provides an unprecedented view inside the atomic-level workings of combustion engines in real time. The engine, built to run on a neutron beam line, allows investigation of structural changes in new alloys designed for high-temperature, advanced combus...
A new study using multi-messenger astronomy has estimated the radius of a typical neutron star to be around 11.75 kilometers and provided a novel calculation of the Hubble constant, which indicates the rate of universe expansion. The researchers' analysis combined gravitational-wave signals and electromagnetic emissions from neutron st...
Researchers used combined signals from binary neutron star mergers to study ultra-dense matter and constrain the Hubble constant. The analysis, led by Tim Dietrich, provided new insights into neutron star equation of state and expansion rate of the Universe.
A team of astronomers using Gemini North's GNIRS instrument discovered that CK Vulpeculae, a bright new star in 1670, is approximately five times farther away and has ejected gas at much higher speeds than previously reported. The new findings suggest the explosion was far more violent, releasing roughly 25 times more energy than a nova.
The team observed the nebula with two different spectrographs on large telescopes, finding that the central star is inflated and signatures of accretion are present. The data suggest a merging binary star system, offering a clear view of the central stellar remnant.
Researchers spot potential magnetar birth from neutron star merger, which resulted in a brilliant kilonova, the brightest ever seen. The team's findings challenge conventional thinking and offer insights into the physics behind extreme energy explosions.
Computer simulations show that neutron star mergers can lead to black hole formation under specific conditions. The threshold mass for collapse depends on the properties of dense nuclear matter.
Astronomers detect tiny free-floating planet with timescale of just 42 minutes, shedding light on turbulent past of young planetary systems. The discovery demonstrates that low-mass free-floating planets can be detected and characterized using ground-based telescopes.
A team of astronomers has used the upgraded GMRT to measure atomic hydrogen content in galaxies as they were 8 billion years ago. The study reveals that the exhaustion of atomic hydrogen gas explains the decline in star formation activity over time.
Astronomers at the University of Vienna used machine learning to trace groups of stars born together and found thousands of sibling stars surrounding well-known cores of star clusters. The discovery reveals that star clusters are enclosed in rich halos, or coronae, more than 10 times larger than previously thought.
Researchers found X-rays continuing to radiate from the collision long after models predicted they would stop. The study suggests possible explanations for the long-lived X-ray emissions, including a new feature of the collision's afterglow or the presence of a remnant neutron star.
Astronomers observe a direct connection between stellar material and bright flare emitted as star is consumed, revealing the origin of obscuring dust and debris. The study provides insights into supermassive black holes and matter behavior under extreme gravity conditions.
Researchers have precisely measured the weak interaction between protons and neutrons, yielding the smallest uncertainty in comparable measurements. The experiment uses a novel apparatus to detect subatomic products and overcome background noise, revealing key findings about the Standard Model of Particle Physics.
The discovery of WD 1856 b, a Jupiter-sized planet orbiting a white dwarf every 34 hours, shows the likely presence of planets around these star remnants. The finding was made possible by NASA's TESS Space Telescope and Spitzer Space Telescope data.
Astronomers have discovered a Jupiter-sized planet, WD 1856b, orbiting close to a white dwarf star, defying previous assumptions about planetary destruction. The planet's unique characteristics suggest it may have originated far from the star and survived its demise, raising hopes for future discoveries.
An international team of astronomers has reported the discovery of a planet, WD 1856 b, orbiting a white dwarf star, which is about seven times larger than the star. The planet's unusual orbit has confirmed previous theories of planetary migration from outer to inner solar systems.
A new analysis of galaxy evolution finds that neutron star collisions do not create the quantity of chemical elements previously assumed. Instead, an entirely different sort of stellar phenomenon - unusual supernovae with strong magnetic fields - is responsible for making most of the heavy elements, including gold.
Astronomers have detected a Jupiter-sized planet, TOI-1899 b, orbiting a low-mass star, providing insights into the formation of giant planets. The discovery was made possible by the Habitable-zone Planet Finder spectrograph and offers a unique opportunity to study the properties of warm Jupiters.
A team of astrophysicists observes newborn stars' magnetospheric accretion region for the first time, providing insight into star formation mechanisms. The study uses the Very Large Telescope Interferometer (VLTI) and GRAVITY instrument to measure angular size and prove magnetospheric accretion taking place close to stellar surfaces.
A new species of brittle star from the Cretaceous period has been identified as Ophiomitrella floorae, honoring Dutch metal vocalist Floor Jansen. The fossil was found in a shallow, warm sea that covered parts of present-day Netherlands during the Dinosaur Era.
Researchers have inferred a tiny neutron star deformation, equivalent to a few micrometres, at a distance of 4500 light-years using the spin-down rate of a millisecond pulsar. This is the first direct detection of continuous gravitational waves from a deformed neutron star.
Researchers discovered that the unexpected dimming of supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked light from about a quarter of the star's surface. The resulting dust cloud led to the star returning to normal brightness in April 2020.
New observations by Hubble reveal a massive dust cloud formed when superhot plasma was unleashed from an upwelling of a large convection cell on the star's surface, blocking light from about a quarter of Betelgeuse's surface.
Astronomers have discovered a Saturn-sized planet orbiting a small, cool star 35 light-years from Earth using the astrometric technique. The planet has a mass comparable to Saturn and orbits its star every 221 days. This discovery is significant as it reveals that smaller planets can exist around cooler stars.
A team of researchers found that unequal neutron-star mergers can create an electromagnetic signal, which could be detected using gravitational-wave detectors like LIGO. The simulations revealed that the larger star tears apart its partner, creating a slower merger and allowing an 'electromagnetic bang' to escape.
Researchers propose a simple model explaining galaxy quenching, attributing it to central black hole 'feedback' that disrupts gas supply. The model reveals that larger galaxies evolve further before their black holes can grow large enough to quench star formation.
The Gemini Observatory has detected a distant short gamma-ray burst (SGRB) with an optical afterglow, providing new insights into the merger of two neutron stars. The observation, made just hours after the burst's detection, revealed the SGRB's distance and placed it in the epoch of cosmic high noon.
A team of scientists from the University of Warwick has discovered a white dwarf star that survived a partial thermonuclear supernova explosion. The star, SDSS J1240+6710, is traveling at an incredible velocity of 900,000 km/h and has a low mass consistent with the loss of mass during the explosion.
A new study published in JNCI Cancer Spectrum found significant disparities in cancer mortality rates between one-star and five-star hospitals. The research examined 105,823 patients who underwent complex cancer procedures at 3,146 hospitals between 2013 and 2016.
Researchers have discovered an unusual pulsar in a binary system with two neutron stars of different masses, which could provide vital clues about unsolved mysteries in astrophysics. The discovery, published in Nature, sheds light on the expansion rate of the Universe and the nature of exotic matter that makes up neutron star interiors.
A team of international scientists discovered an asymmetrical double neutron star system, which could provide vital clues about the expansion rate of the universe. The finding uses the National Science Foundation's Arecibo Observatory's powerful radio telescope and builds upon a 2017 LIGO/Virgo discovery.
Astronomers detected a massive star in the Kinman Dwarf galaxy that vanished without producing a supernova. Theories suggest the star may have collapsed into a black hole or been transformed by dust, challenging current understanding of massive star deaths.
KELT-9 b experiences two summers and two winters every year due to its unique polar orbit around an extremely hot star. The planet's atmosphere streams away into space as it receives 44,000 times more energy from its star than Earth does from the Sun.
Astronomers have discovered an infant planet, AU Mic b, orbiting a 25-million-year-old star in the solar system. The planet, about the size of Neptune, takes only eight and a half days to complete one orbit around its host star, AU Microscopii.
Scientists have discovered a planet about as large as Neptune that orbits the young star AU Mic in just over a week, providing valuable insights into planetary formation and evolution. The planet, named AU Mic b, was detected using data from NASA's Transiting Exoplanet Survey Satellite (TESS) and retired Spitzer Space Telescope.
Scientists have detected an object of 2.6 solar masses, firmly placing it within the 'mass gap' between neutron stars and black holes. The discovery was made using LIGO and Virgo detectors and may challenge current theoretical models.
A novel method for 3D printing components used in neutron instruments has been licensed to ExOne Company. The collaboration will help develop patent-pending techniques to create lightweight, metal-infused composites ideal for neutron scattering applications.
Using data from NASA's MESSENGER spacecraft, scientists at Durham University measured the rates at which neutron particles leaked out from Venus and Mercury. The findings suggest a neutron lifetime of 13 minutes, with implications for our understanding of the Standard Model of particle physics.
A four-year study at Jodrell Bank Observatory reveals a repeating Fast Radio Burst (FRB) follows a cyclic pattern with radio bursts observed every 90 days, followed by a silent period of 67 days, repeating every 157 days. This discovery provides an important clue to identifying the origin of FRBs.
A team of Indian scientists has detected a broad-energy X-ray pulsation in the new source, classifying it as an ultra-luminous X-ray pulsar (ULXP). The object is thought to be a neutron star with a rotation period of up to 100 times per second.
Researchers observed an accreting neutron star entering an outburst phase, studying its structure and material movement. The observation revealed a 12-day process, contradicting previous theories of two- to three-day timescales.
Researchers from the University of Helsinki have found strong evidence for the presence of exotic quark matter inside the cores of the largest neutron stars in existence. The new results were published in Nature Physics and combined recent findings from theoretical particle and nuclear physics with astrophysical measurements.
Researchers at RIKEN found that knocking out a single proton from a fluorine nucleus transforms it into a neutron-rich isotope of oxygen. This transformation has a significant effect on the state of the nucleus, defying conventional wisdom and sparking further investigation.
Researchers have developed a new model that enables direct measurement of vibrations inside neutron stars from gravitational-wave signals. This will provide fresh insights into the fundamental nature and composition of these mysterious objects, unlocking new avenues for studying extremely dense nuclear matter.
Researchers discovered black hole-neutron star mergers in globular star clusters can be detected using computer simulations. The study offers critical insights into the fusion of massive stellar objects, with potential implications for gravitational wave detection.