Articles tagged with Gravitational Waves
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Astrophysicists at Northwestern University predict that LIGO's first detection of merging black holes could have been formed through dynamic interactions in the star-dense core of an old globular cluster. The theory, known as dynamical formation, is one of two recognized main channels for forming binary black holes detected by LIGO.
For the second time, scientists have detected gravitational waves, which provide information about their origins and gravity's nature. The event involved two smaller black holes that merged to form a more massive spinning black hole.
The Laser Interferometer Gravitational-wave Observatory has detected a second pair of colliding black holes, validating the landmark discovery from earlier this year. RIT scientists played a crucial role in identifying and analyzing the gravitational wave signal, revealing diverse sizes and spins among black holes in the universe.
Scientists have detected gravitational waves from the merger of two black holes, 14 and 8 times the mass of the sun, producing a single massive spinning black hole. The detection provides new insights into the nature of gravity and the origins of these cosmic events.
The LISA Pathfinder mission has passed a series of tests with flying colors, coming closer to experiencing true free fall than any other human-made object. The experiment successfully tested systems that will be incorporated in the Laser Interferometer Space Antenna (LISA) gravitational wave observatory scheduled for launch in 2034.
The LISA Pathfinder mission has achieved remarkable results in testing a crucial technology for detecting gravitational waves from space. By flying around identical test masses and isolating them from external forces, scientists have successfully demonstrated advanced technologies needed for a full-scale observatory.
The Gruber Foundation Cosmology Prize recognizes the first observation of gravitational waves by the LIGO team, confirming a key prediction of Einstein's theory of general relativity. This achievement opens up new means of studying the universe and provides direct evidence for the existence of black holes.
The PIPER (Primordial Inflation Polarization Explorer) balloon mission aims to detect primordial gravitational waves and prove the universe expanded faster than light after the Big Bang. The discovery could establish a link between gravity and quantum mechanics, resolving long-standing puzzles in physics.
The detection of a brief gamma-ray burst consistent with the same part of the sky as gravitational waves offers a unique window into the universe. By analyzing this event, scientists can gain insights into the dynamics leading up to black hole mergers and shed light on the nature of gravity.
Researchers at the University of Southern Denmark propose a new model for dark matter, suggesting a heavier particle that interacts only through gravity. This PIDM particle could have been created in the early universe under extremely hot conditions, and its existence can be tested using planned gravitational wave experiments.
Researchers accurately measured the rotational rate of an 18 billion solar mass supermassive black hole, one-third of the maximum spin rate allowed in General Relativity. The binary black hole model reveals a smaller companion orbiting around it, affecting accretion disk behavior.
Physicists at Université de Genève developed a new code that simulates the rotation of space-time and gravitational waves in the formation of large-scale structures. This allows for more precise calculations than current codes, enabling the study of dark energy's role in the universe's expansion.
RIT researchers are investigating properties of binary black hole mergers and inferring the rate of such mergers based on their implications for the gravitational wave background. They aim to detect a range of signals from unexplained bursts to a background 'hum' from the distant universe.
An international team of scientists including UMD physicists confirms Einstein's prediction of gravitational waves in a binary black hole merger event. This detection marks a major breakthrough in the field of gravitational wave research and offers insights into gravity and the universe.
A team of astronomers searched for visible light after the first direct detection of gravitational waves by LIGO, but found none. The Dark Energy Camera was rapidly pointed at the location of the event, using large telescopes to scan a vast sky area.
Scientists have observed ripples in spacetime called gravitational waves, providing insight into the nature of gravity. The detection was made possible by improved LIGO detectors, allowing for increased sensitivity and a larger volume of the universe to be probed.
Rochester Institute of Technology researchers' 2005 breakthrough prediction of gravitational waves has been confirmed by LIGO. Their work introduced a revolutionary new way to understand the universe through gravitational wave astronomy, opening up frontiers in the field.
The Laser Interferometer Gravitational-Wave Observatory (LIGO) has detected ripples in space-time, also known as gravitational waves, for the first time on Earth. This breakthrough opens a new window into the universe and revolutionizes our understanding of violent cosmic events.
Scientists have observed ripples in spacetime, called gravitational waves, arriving from a cataclysmic event in the distant universe. This confirms a major prediction of Albert Einstein's general theory of relativity, providing information about gravity and its nature.
Scientists observed ripples in spacetime called gravitational waves from colliding black holes, confirming a major prediction of Albert Einstein's general theory of relativity. The detected waves were produced during the merger of two black holes, with masses about 29 and 36 times that of the sun.
Researchers propose a novel approach to determine the origin of the universe by analyzing variations in the cosmic microwave background. The new method identifies
Scientists used Parkes telescope for 11 years to detect gravitational waves but found nothing, suggesting that black holes may merge quickly without generating waves. The lack of detection has implications for astronomers who want to use pulsar timing techniques to spot gravitational waves.
Astronomers reanalyzed archival data to find only 11 galaxies with 'genuine' mergers, leading to a lower estimated rate of galaxy mergers and potentially fewer supermassive black hole pairs. This reduces the level of expected gravitational waves from X-shaped radio galaxies.
Astronomers at Columbia University provide evidence of a pair of supermassive black holes converging towards a collision. They predict the smashup will occur in 100,000 years, offering insights into black hole growth and space-time vibrations.
A recent study suggests that dense star clusters in the universe could be 'factories' of binary black holes. Researchers predict that advanced observatories will detect over 100 merging black holes per year from these clusters.
Australian scientists are part of the Advanced LIGO project aiming to find gravitational waves, ripples in space-time caused by violent cosmic events. The technology requires high sensitivity and precision, pushing the limits of components like low-noise detectors and high-power lasers.
The US National Science Foundation has awarded 10 Physics Frontiers Centers, focusing on basic research in quantum computing and fundamental physics. These collaborative environments support multidisciplinary projects and education initiatives.
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has received $14.5 million in NSF funding to create a Physics Frontiers Center to detect low-frequency gravitational waves using millisecond pulsars as a detection tool.
Theoretical astrophysicists discovered that gravitational waves from merging binary neutron star systems have a characteristic spectrum similar to atomic spectral lines. This allows for the inference of neutron star properties, including equation of state and stellar structure.
Astrophysicist Dr. Michael Kesden's research provides new insights into binary black hole mergers and their connection to gravitational wave detection. The solutions can significantly impact the study of black holes and the search for gravitational waves in the cosmos.
New Planck analysis confirms Viatcheslav Mukhanov's theory on quantum origin of universe's structure, supporting the idea that quantum fluctuations gave rise to galaxies and clusters. The study also rules out primordial gravitational waves, suggesting that instruments may not be sensitive enough to detect them yet.
A new joint analysis of BICEP2/Keck Array and Planck data reveals that the earlier detection of primordial gravitational waves is no longer secure due to interstellar dust contamination. The study uses multi-frequency data from Planck and ground-based experiments to separate foreground emissions from the cosmic background.
A recent study confirms that galactic contaminants are too intense to distinguish cosmological gravitational waves, casting doubt on the detection. The Planck-BICEP2 collaboration used multiple instruments to rule out contamination, but acknowledge the need for sharper eyes to detect the signal.
Researchers at Cardiff University are exploring a new method to detect the origins of gamma-ray bursts using giant space 'microphones' that can pick up gravitational waves created by black holes. By analyzing these waves, scientists may uncover information about the mass and collision history of star and black hole systems.
Researchers have identified an enigmatic object named SDSS1133, which could be a recoiling black hole ejected from its parent galaxy. The discovery, made using high-precision equipment and observations with the Hubble Space Telescope, presents a unique opportunity to study gravitational waves and their detection.
Researchers at Cardiff University have built a theoretical model to predict potential gravitational-wave signals from black hole collisions. The model aims to help scientists identify the correct waveforms and reveal secrets about how black holes orbit and collide.
Researchers have found that stars that oscillate at the same frequency as gravitational waves can absorb energy from those waves and brighten temporarily. This effect could provide scientists with another method to indirectly detect gravitational waves.
Researchers at Lawrence Berkeley National Laboratory and the University of California detected a force of approximately 42 yoctonewtons using a unique optical trapping system and ultracold atoms. The detection surpassed the Standard Quantum Limit, achieving sensitivity consistent with theoretical predictions.
Astronomers have discovered three closely orbiting supermassive black holes in a galaxy over four billion light years away. The system's tight configuration suggests that these closely-packed black holes are far more common than previously thought.
Researchers say they've collected the first direct evidence for cosmic inflation, a cataclysmic event that marked the universe's birth. The team observed strong B-mode polarization signals in the cosmic microwave background, a signature of gravitational waves, confirming a deep connection between quantum mechanics and general relativity.
Researchers from BICEP2 collaboration announce groundbreaking discovery of cosmic inflation, providing first direct image of gravitational waves. The data also confirm a deep connection between quantum mechanics and general relativity.
Physicists Lawrence Krauss and Frank Wilczek suggest measuring minute changes in the cosmic background radiation could detect telltale effects of gravitons. They propose that gravitons exist as 'quantum fluctuations' during inflation, generating gravitational waves that affect CMB polarization.
Scientists at Rochester Institute of Technology will simulate extreme black holes with support from a $525,000 grant. Their contributions will help advance the international effort to confirm the existence of gravitational waves and black holes, anticipating new field discoveries.
Physicists at the University of Warsaw and Hanover demonstrate that experimentally available squeezed states are optimal for improving the precision of measurements in gravitational wave detectors. This breakthrough improves sensitivity by up to 30%, allowing for more accurate detection of subtle spacetime vibrations.
A recent study using gravitational wave data from the Parkes radio telescope has challenged existing theories on supermassive black hole growth. The researchers tested four models of black-hole growth against observational data, effectively ruling out one model and pushing others to re-evaluate their predictions.
Researchers used gravitational wave data to test models of supermassive black hole growth, ruling out one model and leaving three others as possibilities. The study provides new insights into the growth of massive black holes, shedding light on a long-standing astronomical question.
Researchers at Montana State University have discovered a universal relation among three intrinsic properties of neutron stars: moment of inertia, Love number, and quadrupole moment. This finding enables astrophysicists to infer the shape and degree of deformation without detailed internal structure knowledge, aiding gravitational wave...
Astronomers at the University of Warsaw discovered that stellar monsters with masses 200-300 times that of our Sun will not collide until billions of years from now. Due to their large distance apart and lack of expansion, there is no mechanism for their orbit to tighten, making a spectacular collision impossible.
Researchers at University of Nevada, Reno propose a new method to detect gravitational waves from the far reaches of the universe. The device, which uses optically levitated sensors, has the potential to exceed existing detectors' sensitivity by an order of magnitude.
A newly-discovered pulsar and its white-dwarf companion have provided physicists with a unique opportunity to study the nature of gravity, with General Relativity predictions holding up well under extreme conditions. The system's unique characteristics make it an unprecedented test for alternative theories of gravity.
Scientists at NASA's Goddard Space Flight Center are developing atom-optics technology to directly detect gravitational waves, which could revolutionize astrophysics. The technology uses atomic interferometry to measure minute changes in space-time.
Researchers used computer simulations to explore the mergers of supersized black holes, revealing a 'funnel-like structure' that could drive particle jets. The study sheds light on the universe's most extreme phenomena, including gravitational waves, black holes, and the death of stars.
Researchers from Cardiff University found that the different tones of a dying black hole can provide insight into its mass and spin. By analyzing these tones, scientists may be able to weigh two black holes after they've collided and merged, potentially testing Einstein's general theory of relativity.
A team of astronomers has detected gravitational waves at optical wavelengths in light from a pair of eclipsing white dwarf stars. The effect, predicted by Einstein's theory of general relativity, causes the stars to inch closer together and orbit each other faster.
Researchers use pulsars to test General Relativity in extremely strong gravity and directly detect gravitational waves. Pulsar timing arrays may reveal evidence for cosmic strings and the early Universe.
Astronomers have discovered a correlation between gravitational wave events and radio flares, enabling them to pinpoint the source of these cosmic occurrences. By analyzing surrounding interstellar material, researchers can verify that detected gravitational waves come from specific regions of space.
Researchers from Max Planck Society and Leibniz University Hannover have successfully applied the 'squeezed light' method to improve the sensitivity of the GEO600 gravitational wave detector. This new technology reduces shot noise by a factor of two, allowing for more accurate measurements of tiny changes in space-time.
The study, published by Professor Bernard Schutz, demonstrates that an additional detector would more than double the detection rate of gravitational waves. The new network could detect around 370 events per year, increasing to 500 events after a few years of operation.
Researchers have developed conceptual tools to visualize warped space-time, discovering vortex lines and tendex lines that describe gravitational forces. These tools allow for a better understanding of black holes, gravity, and the universe, enabling predictions of gravitational waves and solving long-standing mysteries.
A newly merged black hole can be detected by observing the tidal disruption of surrounding stars, which will provide accurate distances and precise sky coordinates. This could lead to a better understanding of dark energy and Einstein's general theory of relativity.