Recent research uses gravitational waves to assess what fraction of dark matter could be in the form of massive primordial black holes. The study sets an upper limit of less than half for such heavy black holes within a mass range of 100 to 100,000 solar masses.
A new simulation suggests that energy released near a black hole's event horizon during magnetic field line reconnection powers the intense flares. The process involves interactions between the magnetic field and material falling into the black hole, releasing hot plasma particles that radiate away as photons.
Research by Aerika Loyd and her team found that microaggressions against Black adolescents are more subtle, but still impactful, and can lead to poor mental health and academic problems. Positive thinking is a helpful coping mechanism for both girls and women, reducing externalized symptoms and mental health impacts.
Astronomers have found an intermediate-mass black hole in the Andromeda galaxy, one of only a few confirmed objects of its kind. The discovery sheds light on the formation of galaxies and provides insights into the population of black holes at the centers of low-mass galaxies.
Researchers confirm a rare and massive black hole merger with an eccentric orbit, shedding light on the formation of supermassive black holes in dense star clusters. The study's findings have significant implications for our understanding of black hole dynamics and the evolution of galaxies.
Astronomers have discovered that a black hole at the center of the Henize 2-10 galaxy is actively promoting new star formation, with newborn clusters spotted along an outflow of gas stretching 230 light-years from the black hole. This finding sheds light on the origins of supermassive black holes in the early universe.
Researchers estimate 1% of ordinary matter is locked up in stellar mass black holes, with 40 trillion black holes in observable Universe. The study uses a new method combining stellar evolution codes and empirical prescriptions for galaxy properties.
A team of astronomers has developed a new technique to detect active black holes in galaxies, measuring their impact on galaxy evolution. The method can be applied to millions of galaxies, searching for bright supermassive black holes at the centre of galaxies and studying their effect on star formation.
A mini-jet has been found near the Milky Way's supermassive black hole, indicating periodic outbursts. The discovery was made using multi-wavelength observations from various telescopes and suggests that the black hole is not a sleeping monster but rather dynamically variable.
Researchers at the Max Planck Institute for Intelligent Systems developed an algorithm that analyzes gravitational wave data in seconds, rather than hours or months. The system, called DINGO, uses a deep neural network to infer properties of binary black-hole sources with high accuracy.
Researchers detected gamma rays from ultra-fast outflows (UFOs) launched by supermassive black holes, providing a basis for understanding their role in regulating black hole growth and galaxy evolution. UFOs create shock waves that accelerate charged particles, influencing the surrounding matter and accelerating star formation.
A new study suggests that black holes grow in lockstep with the expanding universe, a phenomenon called cosmological coupling. This idea improves the explanation for large black hole masses observed in gravitational wave observatories.
Historical context of black hole thermodynamics investigated through Roger Penrose's energy extraction theory and its influence on Stephen Hawking's groundbreaking discovery of black hole radiation. The study explores the connections between Western and Soviet physicists, shedding new light on the development of this field.
The University of Ottawa has launched the Interdisciplinary Centre for Black Health (ICBH), a leading research center examining biological, social, economic, and cultural determinants of Black health. The ICBH aims to identify priorities in research on physical and mental health disparities among Canada's Black communities.
Black women physicians in the United States encounter barriers such as lower earnings and reduced promotion opportunities, despite having the same training and expertise as their colleagues. The essay highlights the need for sustained efforts to promote diversity, equity, and inclusion in academic medicine to address these disparities.
Researchers found that a supermassive black hole slurping down a star generated nowhere near the energy needed for the neutrino. The outflow of material was equivalent to the Sun's radiated energy over 30 million years, but lacked the necessary power.
Researchers from Boston University developed a risk prediction model tailored to U.S. Black women, using epidemiologic data from three case-control studies and follow-up data from the Boston University Black Women’s Health Study. The model is simple to use and can be easily incorporated into primary care settings.
Astronomers observe a tidal disruption event caused by an intermediate-mass black hole consuming a star, providing the first measurements of its mass and spin. The findings shed light on the elusive category of intermediate black holes, which may account for most black holes in galaxy centers.
Researchers propose that low-activity supermassive black holes are major factories of high-energy cosmic particles. They can generate gamma rays in the megaelectron volt range through plasma heating and accelerate protons to energies thousands of times higher than the Large Hadron Collider.
A study by Penn State researchers found that Black COVID-19 patients are three times more likely to have experienced a stroke prior to their diagnosis than non-Black patients. This disparity may explain the high mortality rates among Black populations during the pandemic.
Researchers used high-powered simulations to study the mysterious process of gas flow across the universe, feeding massive black holes. The new method shows that strong gravitational forces from stars can twist and destabilize gas, driving sufficient influx to power a luminous quasar at galaxy activity peaks.
A new simulation developed at Northwestern University reveals the role of galaxy spiral arms in feeding supermassive black holes with gas. The study uses high-powered computing to model gas flow across vast distances and provides insight into quasars, which are incredibly luminous fast-growing black holes.
Researchers discovered a definitive relationship between the mass of actively feeding supermassive black holes and their characteristic timescale in light flickering patterns. The findings suggest that the processes driving flickering during accretion are universal, applying to both massive black holes and lighter white dwarfs.
Researchers have discovered long narrow dust filaments that surround and feed supermassive black holes at the centers of galaxies. These filaments could be the natural cause of darkening at the centers of many galaxies when nuclear black holes are active, providing a new perspective on their behavior.
Researchers have made the first direct observation of light from behind a black hole, confirming a key prediction by Einstein's theory of general relativity. The discovery was made using X-rays emitted by a supermassive black hole at a galaxy 800 million light-years away.
Recent theoretical findings and astrophysical modeling suggest that scientists can accurately interpret gravitational wave signals from these events, hinting at the existence of so-called 'hierarchical' black holes. The detection of GW190521 in 2019 is thought to be the most promising candidate for such an event.
A team of researchers from the Flatiron Institute and Princeton University has found that the magnetic field around a black hole quickly decays when surrounded by plasma. This process, known as 'magnetic reconnection,' rapidly drains the magnetic field and could explain flares seen near supermassive black holes.
Astronomers find that massive black holes play a key role in halting star formation in galaxies, contradicting previous assumptions. Using simulations and machine learning, the team confirmed that supermassive black hole mass is the most important factor in suppressing stellar activity.
A Danish student has solved the mathematical expression behind black hole image distortions, revealing a key factor of 500 times. The result provides new opportunities to test gravity and understanding of black holes, particularly in rotating cases.
A California study suggests that partnering with black churches and medical professionals can increase COVID-19 vaccine uptake in black communities. The study found that a three-tier approach to mobile vaccination clinics, involving faith leaders and pharmacists, resulted in a significant increase in vaccine uptake among blacks.
The study reveals a higher-than-expected black hole fraction, with some having masses up to 20 times that of the Sun. The researchers used simulations to understand how these massive black holes formed and influenced the cluster's evolution.
A new study published in Neurology found that despite lower socioeconomic status, Black people with multiple sclerosis (MS) tend to have more disability than white peers. The study discovered smaller brain lesions and slower cognitive and physical processing speeds among Black participants.
Researchers at MIT confirmed Hawking's area theorem for the first time by analyzing GW150914 signal, showing total event horizon area did not decrease after merger. The findings provide evidence that black holes behave as thermal objects and emit radiation over long timescales, a fundamental revelation about these cosmic phenomena.
Researchers confirmed detection of two rare events involving collision of black hole and neutron star, producing strong gravitational waves signals. The mergers involved massive objects with masses up to 9 solar masses and 1.9-solar-mass neutron stars, providing new information on binary systems and their properties.
Scientists have detected black holes eating neutron stars for the first time, shedding light on the Universe's most extreme objects. The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo observatories captured the event, providing valuable insights into space and time.
A new study found that Black men are 11% less likely to receive advanced prostate cancer therapies compared to non-Black men. Despite equal access to healthcare services, the disparity persists, with Black men also being more likely to die from the disease than non-Black patients.
Researchers have detected two events of black holes merging with neutron stars, providing insights into their origins and merger rates. The findings will enable the drawing of conclusions about the host of astrophysical models of compact object formation and binary evolution.
Research highlights the need to reexamine assumptions about suicide in Black youth due to rising rates of suicidal behavior. The study calls for a 'ground zero' approach, focusing on theory development, understanding developmental trajectories, and engaging trusted community organizations.
Researchers developed a new type of gravitational wave detector that can find small primordial black holes. The device uses a specific metal cavity and strong external magnetic field to detect high-frequency gravitational waves emitted by these hypothetical black holes.
Researchers used ALMA to detect a galactic wind driven by a supermassive black hole 13.1 billion years ago, pushing back the start of galaxy-growth interactions by 100 million years. The observation reveals coevolution between supermassive black holes and galaxies since less than a billion years after the Universe's birth.
A team of researchers has proposed a new explanation for the origin of supermassive black holes, suggesting that they are formed through the collapse of a massive seed black hole produced by the gravitational instability of a dark matter halo. This process, known as gravothermal collapse, can lead to the creation of a seed black hole w...
Satellite galaxies that orbit massive central galaxies can form new stars due to active black holes clearing their path through intergalactic gas. Researchers used systematic observations and cosmological simulations to find this counter-intuitive effect.
A study reveals that black holes have an unexpected effect on galaxy evolution, influencing the formation of stars in satellite galaxies at vast distances. The research found a clear modulation of star formation rates depending on a galaxy's orientation with respect to its central black hole.
Researchers created a new qubit by manipulating hole spins in a germanium layer, enabling faster processing speeds and reduced magnetic field requirements. This breakthrough could lead to the development of more efficient quantum computers combining semiconductors and superconductors.
The study reveals that supermassive black holes exhibit accretion states similar to those seen in stellar mass black holes, with properties including thermal emission by the plasma disc and intense radio emission. This new understanding helps clarify the activity cycles of supermassive black holes in galaxy centers.
New research uses M87* data to test Einstein-based and string-inspired theories, constraining the validity of these models. The study suggests that current data aligns well with Einstein's theory and has limitations for string-based theories.
Researchers observed a supermassive black hole's accretion cycle, finding properties similar to stellar-mass black holes. The study suggests that accretion is independent of size, allowing for the capture of short timescale events like tidal disruption events.
The Black in Geoscience Week aims to increase representation and raise visibility among Black researchers, fostering networks and connections worldwide. The event has generated discussions on the importance of community and awareness among Black geoscientists, highlighting severe underrepresentation in the field.
A new study analyzes the impact of highly publicized acts of racial violence on the mental health of Black Americans. Research suggests that experiencing racism, even vicariously, can harm mental and physical health, and that highly publicized anti-Black violence is strongly associated with poor mental health days among Black respondents.
A study found that highly publicized anti-Black violence is associated with increased poor mental health days among Black individuals in the US. Reducing such violence may benefit Black mental health nationwide, according to researchers.
A new UCLA study reveals the proportion of Black physicians in the US has changed little in 120 years, with a significant income gap between white and Black male physicians. The research highlights pay discrimination and unequal access as contributing factors to this disparity.
A new NASA visualization reveals the hypnotic pas de deux of two orbiting black holes, distorting and redirecting light from their accretion disks. The system's unique features, including relativistic aberration and Doppler boosting, create striking images of each black hole.
Physicists at MIT's LIGO Laboratory have searched for ultralight bosons using black holes, but found no slowdown in their spin. The study rules out the existence of ultralight bosons with masses between 1.3x10^-13 and 2.7x10^-13 electronvolts.
Two close quasar pairs are found in distant merging galaxies, separated by just over 10,000 light-years. This discovery provides crucial insight into the existence of supermassive black hole pairs and galaxy mergers in the early Universe.
The discovery of four double quasars offers insights into galaxy formation and the evolution of supermassive black holes. Quasars are brilliant beacons that can outshine entire galaxies, and their proximity in merging galaxies provides a unique window into the early universe.
A new study by economists suggests that Black students who attended racially balanced high schools completed significantly less schooling than those who attended predominantly black or white schools. This challenges the standard wisdom that school desegregation leads to racial nirvana in the US.
A newly discovered 'Goldilocks' black hole, approximately 55,000 times the sun's mass, provides insight into how supermassive black holes form and grow. The finding may indicate that these behemoths have ancient relics as seeds, potentially leading to a greater understanding of the universe.
Astronomers have captured the first-ever image of a black hole's magnetic fields, revealing that polarized light reveals the structure of these fields just outside the event horizon. This breakthrough observation will help scientists understand how energy is extracted from spinning black holes to produce powerful jets.
A new view of the region closest to M87's supermassive black hole reveals important details of magnetic fields and hints at how powerful jets originate. The observations suggest strongly magnetized gas plays a key role in launching energetic jets.
A partnership between Loma Linda University and local churches has successfully vaccinated over 400 people in the predominantly Black community of San Bernardino County. The initiative, which included mobile vaccine clinics in church parking lots, resulted in an increase of 3.6% in Black attendance at mass vaccination clinics.