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EHT Collaboration
At the time, all ingredients of the process were speculative, but the new observations confirm the Blandford-Znajek idea. âWhat we see in our image is ordered polarization in a spiral shape,â said Issaoun, who was involved in analyzing the polarization measurements. âAnd the shape of the magnetic field is also spiral â¦ which means itâs able to launch a jet.â
âIâm very chuffed,â Znajek, now a retired Cambridge city councilor, said by email.
Moreover, the new observations point to one of two rival versions of the Blandford-Znajek process that have been developed and explored in hundreds of computer simulations in recent decades, known as the MAD and SANE jet-launching scenarios. These competing ideas paint opposing pictures of a black holeâs milieu and, in particular, the origin and strength of its magnetic field. ....

Kyle Parfrey , Ramesh Narayan , Sasha Philippov , Harvard University , Princeton University , With Kerr , Andrew Chael , Event Horizon Telescope , Black Holes , Computational Astrophysics , ரமேஷ் நாராயண் , ஹார்வர்ட் பல்கலைக்கழகம் , ப்ரிந்ஸ்டந் பல்கலைக்கழகம் , உடன் கெர் , ஆண்ட்ரூ சாயல் , நிகழ்வு அடிவானம் தொலைநோக்கி , கருப்பு துளைகள் , கணக்கீட்டு வானியற்பியல் ,

New evidence of how and when the Milky Way came together

New research provides the best evidence to date into the timing of how our early Milky Way came together, including the merger with a key satellite galaxy.

Using relatively new methods in astronomy, the researchers were able to identify the most precise ages currently possible for a sample of about a hundred red giant stars in the galaxy. ....

United States , Ohio State University , Josefina Montalban , Mathieu Vrard , Fiorenzo Vincenzo , School Of Physics , Ohio State University Center , Ohio State Department Of Astronomy , European Research Council , University Of Birmingham , Milky Way , Ohio State , European Research , Space Planetary Science , Stars The Sun , ஒன்றுபட்டது மாநிலங்களில் , ஓஹியோ நிலை பல்கலைக்கழகம் , பள்ளி ஆஃப் இயற்பியல் , ஓஹியோ நிலை பல்கலைக்கழகம் மையம் , ஐரோப்பிய ஆராய்ச்சி சபை , பல்கலைக்கழகம் ஆஃப் பர்மிங்காம் , பால் வழி , ஓஹியோ நிலை , ஐரோப்பிய ஆராய்ச்சி ,

Probing deep space with Interstellar

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IMAGE: Scientists hope the proposed Interstellar Probe will teach us more about our home in the galaxy as well as how other stars in the galaxy interact with their interstellar neighbourhoods.
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Credit: Johns Hopkins APL
MUNICH When the four-decades-old Voyager 1 and Voyager 2 spacecraft entered interstellar space in 2012 and 2018, respectively, scientists celebrated. These plucky spacecraft had already traveled 120 times the distance from the Earth to the sun to reach the boundary of the heliosphere, the bubble encompassing our solar system that s affected by the solar wind. The Voyagers discovered the edge of the bubble but left scientists with many questions about how our Sun interacts with the local interstellar medium. The twin Voyagers instruments provide limited data, leaving critical gaps in our understanding of this region. ....

United States , Elena Provornikova , Johns Hopkins Applied Physics Lab , European Geosciences Union , Interstellar Probe , General Assembly , Local Interstellar Cloud , Atomic Molecular Particle Physics , Space Planetary Science , Satellite Missions Shuttles , Stars The Sun , Research Development , ஒன்றுபட்டது மாநிலங்களில் , ஜான்ஸ் ஹாப்கின்ஸ் பயன்படுத்தப்பட்டது இயற்பியல் ஆய்வகம் , ஐரோப்பிய புவி அறிவியல் தொழிற்சங்கம் , ஜநரல் சட்டசபை ,

Closest Black Hole to Earth, 'The Unicorn,' Lies 1,500 Light-Years Away

Closest Black Hole to Earth, The Unicorn, Lies 1,500 Light-Years Away
On 4/23/21 at 9:30 AM EDT
Researchers say they have discovered what may be the closest known black hole to Earth, which they have dubbed the Unicorn.
The black hole is about three times the mass of our sun, meaning it is also among the smallest of these celestial objects on record.
According to findings published in the journal
Monthly Notices of the Royal Astronomical Society, the black hole is located around 1,500 light-years away from Earth, within the Milky Way galaxy.
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The black hole is relatively tiny, given that some of these objects are on the order of billions of solar masses. In fact, scientists have only identified a handful of black holes in the universe that are in a similar size range to the Unicorn. ....

United States , Ohio State University , Tharindu Jayasinghe , Kris Stanek , Todd Thompson , Monthly Notices Of The Royal Astronomical Society , Monthly Notices , Royal Astronomical Society , Milky Way , Ohio State , Tech Science , Black Holes , The Unicorn , ஒன்றுபட்டது மாநிலங்களில் , ஓஹியோ நிலை பல்கலைக்கழகம் , கிரிஸ் ஸ்டான்ெக் , டாட் தாம்சன் , மாதாந்திர அறிவிப்புகள் ஆஃப் தி அரச வானியல் சமூகம் , மாதாந்திர அறிவிப்புகள் , அரச வானியல் சமூகம் , பால் வழி , ஓஹியோ நிலை , தொழில்நுட்பம் அறிவியல் , கருப்பு துளைகள் , தி யூனிகார்ன் ,

Two UoC professors win the most prestigious European research grants

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The European Research Council (ERC) has awarded the two UoC researchers Professor Dr Michael Bollig and Professor Dr Stephan Schlemmer with an ERC Advanced Grant. Bollig is being funded with approximately 2.5 million euros for his REWILDING project. Schlemmer will also receive 2.5 million euros in funding for his project MissIons . The ERC Advanced Grant is considered the most important funding award in the European research landscape.
ERC Advanced Grants are awarded to outstanding scholars and scientists for projects that are associated with uncertainties due to their innovative approach, but which may open up ground-breaking new paths in their respective fields. Funding is granted to researchers who have worked consistently and successfully at the highest level for many years. ....

Poitou Charentes , Nordrhein Westfalen , Max Planck Institute , United States , Paul Sabatier , Michael Bollig , Stephan Schlemmer , University Of Cologne , University Of California At Berkeley United States , Collaborative Research Centre , Cologne Global South Studies Center , Grant For The Mission , University Of Cologne Institute Astrophysics , Institute Of Astrophysics , Global South Studies Center , French Ministry Of Research , European Research Council , Max Planck Institute For Flow Research , Institute Of Ethnology , Professor Dr Michael Bollig , Professor Dr Stephan Schlemmer , Cultural Anthropology , Kavango Zambezi Conservation Area , Rural Africa , Environmental Humanities , Leo Spitzer Award ,