Tag: ALMA
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Supermassive Black Holes Exhibit Selective Feeding During Galaxy Mergers
Overview: A New Look at Black Hole Diets For decades, astronomers have treated supermassive black holes (SMBHs) as cosmic vacuum cleaners, voraciously consuming gas, stars, and anything that crosses their event horizons. Yet recent observations with the Atacama Large Millimeter/submillimeter Array (ALMA) are challenging that image. In merging galaxies, SMBHs show selective feeding patterns that…
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Selective Feeding: How Supermassive Black Holes Skim Gas During Galaxy Mergers
Introduction: A New View of Black Hole Feeding Black holes are often portrayed as cosmic vacuum cleaners, devouring anything that strays too close. Yet recent observations with the Atacama Large Millimeter/submillimeter Array (ALMA) show that supermassive black holes (SMBHs) in merging galaxies do not always gorge on available gas. Instead, their appetite appears selective, channelling…
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Supermassive Black Holes Feed Selectively During Galaxy Mergers
Introduction: A Surprising Appetite Black holes are famed for their voracious appetites, devouring matter that strays too close. But new observations from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal a more nuanced behavior, even for the universe’s most massive beasts. During galaxy mergers, supermassive black holes (SMBHs) appear to eat selectively, preferentially accreting certain streams…
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Rogue Black Hole Produces Record Radio Blast in Tidal Disruption Event AT 2024tvd
A rogue black hole shatters expectations with a standout tidal disruption event In a discovery that reshapes our understanding of where supermassive black holes can lurk and how they behave, an international team led by Dr. Itai Sfaradi and Prof. Raffaella Margutti of the University of California, Berkeley, identified the first tidal disruption event (TDE)…
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Rogue black hole radio burst reshapes TDE physics worldwide
A rogue black hole produces a record-breaking radio signal An international team of astronomers, led by Dr. Itai Sfaradi and Prof. Raffaella Margutti, reported a breakthrough observation: the first tidal disruption event (TDE) to emit bright radio signals far from a galaxy’s core. Named AT 2024tvd, the event showcases the fastest-changing radio emission ever recorded…
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Gravity’s Tug-of-War: How Gravity Reorients Magnetic Fields in Star Clusters
Overview: A cosmic tug-of-war in star-forming clouds In the largest and most detailed survey to date, astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have captured new evidence about how gravity and magnetic fields shape the birth of massive stars. Focusing on regions where gas and dust densify to form protostars, researchers mapped the magnetic…
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Global Courage Fleet: 30 Boats Still Sail Toward Gaza as Protests Erupt Worldwide
Global Courage Fleet Update: 30 Boats Continue Toward Gaza The Global Courage Fleet, a multinational maritime initiative, says that 30 vessels remain on course toward Gaza despite early reports of interference by the Israeli navy in international waters. In its latest communique, the fleet asserts that the mission continues to push for humanitarian access, while…
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Global Resilience Flotilla Advances Toward Gaza Amid Protests
Global Resilience Flotilla Faces Global Protests as Ships Head Toward Gaza A developing story in the Middle East and beyond centers on the Global Resilience Flotilla, as approximately 30 vessels continue to sail toward Gaza. Organizers describe the mission as a peaceful humanitarian push to deliver aid and solidarity, arguing that maritime routes chosen align…
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Global Sumud Flotilla Interception: Israel Intervenes as Boats Are Stopped, Protests Erupt Across Europe
Overview: Interceptions and a Growing Diplomatic Fallout News from the Global Sumud Flotilla indicates an escalating confrontation at sea, with Israeli forces stopping multiple boats associated with the aid flotilla. The incident comes amid a flurry of political reactions, including a controversial statement from Colombia’s president and a broad wave of protests across several European…
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Norwegians on Gaza flotilla ships boarded by Israeli forces
Norwegian volunteers report four ships boarded as Gaza flotilla encounter escalates Norwegian volunteers aboard several ships in a Gaza flotilla say their vessels were boarded by Israeli forces on Wednesday evening. At least four ships were intercepted, and communications with all aboard the ships Alma, Adara, Sirius, and Haga have been lost, according to Susan…