Add BrightSurf on Google Email

Search results for “Neutron Star”

1,000+ results for "Neutron Star"

Star employees get most of the credit - and blame

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.

SourceCornell University·JournalPersonnel Psychology·DateFeb 16, 2021

Charge radii of exotic potassium isotopes challenge nuclear structure theory

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.

True identity of mysterious gamma-ray source revealed

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.

SourceUniversity of Manchester·JournalMonthly Notices of the Royal Astronomical Society·DateFeb 3, 2021

Alpha particles lurk at the surface of neutron-rich nuclei

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.

SourceRIKEN·JournalScience·DateJan 21, 2021

Limits of atomic nuclei predicted

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.

SourceTechnische Universitat Darmstadt·JournalPhysical Review Letters·DateJan 13, 2021

Galaxy mergers could limit star formation

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.

SourceDurham University·JournalNature Astronomy·DateJan 11, 2021

New engine capability accelerates advanced vehicle research

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...

SourceDOE/Oak Ridge National Laboratory·JournalProceedings of the National Academy of Sciences·DateDec 21, 2020

Multi-messenger astronomy offers new estimates of neutron star size and universe expansion

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...

Blast from the past

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.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalThe Astrophysical Journal Letters·DateNov 24, 2020

Star clusters are only the tip of the iceberg

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.

SourceUniversity of Vienna·JournalAstronomy and Astrophysics·DateOct 15, 2020

Elements of surprise: neutron stars contribute little, but something's making gold, research finds

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.

A warm Jupiter orbiting a cool star

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.

Astrophysics: A direct view of star/disk interactions

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.

SourceUniversity of Cologne·JournalNature·DateAug 31, 2020

Unequal neutron-star mergers create unique "bang" in simulations

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.

SourcePenn State·JournalMonthly Notices of the Royal Astronomical Society·DateAug 3, 2020

Jodrell Bank leads international effort which reveals 157 day cycle in unusual cosmic radio bursts

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.

SourceUniversity of Manchester·JournalMonthly Notices of the Royal Astronomical Society·DateJun 7, 2020

Astronomers capture a pulsar 'powering up'

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.

SourceMonash University·JournalMonthly Notices of the Royal Astronomical Society·DateJun 2, 2020

A single proton can make a heck of a difference

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.

SourceRIKEN·JournalPhysical Review Letters·DateMay 28, 2020

Like thunder without lightning

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.

SourceHeidelberg University·JournalCommunications Physics·DateMay 15, 2020