Articles tagged with Precession
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A team of international researchers has provided direct evidence that the supermassive black hole at the heart of galaxy M87 is spinning. The findings are based on 20 years of observational data, which show that gravitational interactions between the accretion disk and the black hole's spin cause the jet to wobble or precess.
Scientists demonstrate acoustic manipulation of electron spins in silicon carbide, enabling efficient control of magnetic quantum properties. The technique uses surface acoustic waves to tune the spin state, preventing information loss and paving the way for more affordable quantum technologies.
New study questions precession in the Milky Way's warp, suggesting it could disappear or become slower over time. Researchers used Gaia Mission data to analyze stars' positions and velocities.
A Columbia Engineering/UCLA team discovers phase precession in the human brain, allowing neurons to signal information through precise timing. This finding has implications for understanding brain function and creating brain-machine interfaces.
The study provides precise geochronological constraints on the duration of the Yixian Formation and its units, revealing a shorter duration than previously estimated. The results suggest a rapid bio-diversification event during this period, supported by the exceptionally preserved volcanic-influenced ecosystem.
Physicists have directly observed nutation in magnetic spins, a phenomenon 1000 times faster than precession. This discovery has significant implications for data centers and digital storage, paving the way for more efficient technologies.
The satellite detected a low-frequency quasi-periodic oscillation (QPO) above 200 keV in a black hole binary, indicating the presence of a relativistic jet near the event horizon. The discovery resolves the long-running debate on the physical origin of low-frequency QPOs.
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 study reveals a half-orbital precession cycle in thermocline temperature linked to El Niño-Southern Oscillation fluctuations. The thermocline is identified as a key driver of climate change on orbital timescales.
A new study confirms Lense-Thirring precession - a phenomenon of relativistic frame-dragging - in a distant binary star system. The research observes a long-term drift in the orbital parameters due to the rapidly rotating white dwarf companion, confirming Einstein's general theory of relativity.
A study reveals a correlation between precession and Atacama rainfall, suggesting that precession reconfigures southern hemisphere westerlies differently. Model simulations replicate this relationship, which may impact global ocean circulation patterns.
Researchers at ETH Zurich have developed a new method to directly track the precession of single nuclear spins, allowing for precise molecular analysis. This breakthrough enables scientists to study molecules at the atomic level, with potential applications in fields like materials science and chemistry.
Astronomers using ALMA have found evidence of independent origins for two gas flows from a baby star. The slow outflow and high-speed jet have misaligned axes, indicating they were launched from different parts of the disk around the protostar.
Scientists at HZDR aim to demonstrate that precession is sufficient to create a magnetic field using liquid sodium. The experiment could provide insights into the geodynamo and clarify the role of precession in generating the Earth's magnetic field.
A team of scientists has found a way to distinguish a naked singularity from a black hole using the precession frequency of a gyroscope orbiting around it. The frequency increases as matter approaches a rotating black hole, but decreases or becomes zero for a naked singularity.
The study examines the impact of ultrafast laser pulses on ferromagnetic La0.67Sr0.33MnO3 thin films with epitaxial grown BiFeO3 coating layers. Researchers observe distinct oscillations in magnetization precession, which are attributed to the suppression of anisotropy by BFO coating layers and exchange interaction across the interface.
A new study by Brown University researchers shows that the 100,000-year orbital cycle and the 21,000-year precession cycle work together to drive the glacial cycle. The team found that sea ice in the Southern Hemisphere plays a crucial role in modulating the effects of precession on global temperature, leading to an expansion of sea ic...
Researchers at Ruhr-University Bochum demonstrated spin pumping effect in magnetic layers using ultrafast X-ray scattering. This behavior is crucial for magnetic sensors in hard disk read heads and data storage.
Researchers at NRL demonstrate electrical injection, detection and precession of spin accumulation in silicon at temperatures up to 225°C, overcoming a major obstacle for spin-based devices. The findings provide key enabling steps for developing semiconductor spintronics that offer higher performance and lower power consumption.
The measured magnetic field strength of 25 Gauss is significantly stronger than the 5-Gauss weak field or the 100-Gauss strong field that would imply large radioactive decay contributions. The result constrains heat sources in the core, with the outer core likely producing 60% of the planet's power.
Researchers confirmed Einstein's theory of general relativity using observations of a unique pulsar system. The discovery shows that one pulsar is 'wobbling' in space, a effect precisely as predicted by Einstein.
Researchers at NRL and universities developed a new optical technique to control electron spins in quantum dot ensembles, enabling coherent manipulation of all spin frequencies. This breakthrough aims to create novel quantum computing devices using solid-state technology.
Physicists have discovered that correcting a typo in an e-mail requires dozens of bits of information, each forcing its polarity to align up or down. The researchers found that the spin precession effect, where magnetic fields exert forces on neighboring spins, can lead to avalanches if not properly damped.
Researchers suggest that perennial water-ice deposits at Mars' South Pole are juggled between the North and South Poles every 51,000 years due to precession. Water vapour is transported from the North Pole to the South Pole, where it re-condenses and freezes, forming a thick layer.
A new model proposes that the Antarctic ice sheet is more dynamic and capable of change than previously believed. This contradicts the traditional Milankovitch theory, which suggests a stronger influence from Earth's orbit on climate patterns.