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Galaxy mergers could limit star formation

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VIDEO: A simulated collision between two gas-rich galaxies. Part of the gas is ejected in large tails and as the galaxies get closer they merge to form a single system.
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Credit: Jeremy Fensch, et al
Astronomers have looked nine billion years into the past to find evidence that galaxy mergers in the early universe could shut down star formation and affect galaxy growth.
New research led by Durham University, UK, the French Alternative Energies and Atomic Energy Commission (CEA)-Saclay and the University of Paris-Saclay, shows that a huge amount of star-forming gas was ejected into the intergalactic medium by the coming together of two galaxies. ....

France General , United Kingdom , Comunidad De Madrid , Jeremy Fensch , Annagrazia Puglisi , Emanuele Daddi , European Regional Development Funds , Durham University Centre For Extragalactic Astronomy , United Kingdom Research , Durham University , Spanish Ministry Of Science , Atomic Energy Commission , Centre De Recherche Astrophysique Lyon , Technology Facilities Council , University Of Paris , French Alternative Energies , Extragalactic Astronomy , European Southern Observatory , Atacama Large Millimeter Array , Enhanced Eurotalents , Spanish Ministry , Space Planetary Science , Stars The Sun , பிரான்ஸ் ஜநரல் , ஒன்றுபட்டது கிஂக்டம் , காமுனிடட டி மாட்ரிட் ,

Arecibo observatory helps find possible 'first hints' of low-frequency gravitational waves

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ORLANDO, Jan. 11, 2021 - Data from Arecibo Observatory in Puerto Rico has been used to help detect the first possible hints of low-frequency disturbances in the curvature of space-time.
The results were presented today at the 237th meeting of the American Astronomical Society, which was held virtually, and are published in The
Astrophysical Journal Letters. Arecibo Observatory is managed by the University of Central Florida for the National Science Foundation under a cooperative agreement.
The disturbances are known as gravitational waves, which ripple through space as a result of the movement of incredibly massive objects, such as black holes orbiting one another or the collision of neutron stars. ....

United States , Puerto Rico , West Virginia , Joseph Simon , Benetge Perera , University Of Colorado Boulder , Green Bank Telescope , University Of Central Florida , National Science Foundation , International Pulsar Timing Array , American Astronomical Society , Office Of Research , Arecibo Observatory , Astrophysical Journal , Central Florida , Space Astronomy , North American Nanohertz Observatory , Gravitational Waves , Interferometer Gravitational Wave Observatory , Bank Telescope , Space Planetary Science , ஒன்றுபட்டது மாநிலங்களில் , ப்வெர்டோ ரிக்கோ , மேற்கு வர்ஜீனியா , ஜோசப் சிமோன் , பல்கலைக்கழகம் ஆஃப் கொலராடோ கற்பாறை ,

Researchers use LRZ HPC resources to perform largest-ever supersonic turbulence simulation

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IMAGE: Turbulence shaping the interstellar medium. The image shows a slice through turbulent gas in the world s highest-resolution simulation of turbulence, published in Nature Astronomy. Turbulence produces strong density contrasts,.
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Credit: Federrath et al. Nature Astronomy. DOI: 10.1038/s41550-020-01282-z
Through the centuries, scientists and non-scientists alike have looked at the night sky and felt excitement, intrigue, and overwhelming mystery while pondering questions about how our universe came to be, and how humanity developed and thrived in this exact place and time. Early astronomers painstakingly studied stars subtle movements in the night sky to try and determine how our planet moves in relation to other celestial bodies. As technology has increased, so too has our understanding of how the universe works and our relative position within it. ....

Baden Wuberg , Luigi Iapichino , Eric Gedenk , Heidelberg University Professor Ralf Klessen , Leibniz Supercomputing Centre , University Of Heidelberg , Australian National University Associate Professor Christoph Federrath , Nature Astronomy , Space Planetary Science , Technology Engineering Computer Science , Computer Science , Software Engineering , பல்கலைக்கழகம் ஆஃப் ஹைடெல்பெர்க் , இயற்கை வானியல் , இடம் கிரகங்கள் அறிவியல் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , கணினி அறிவியல் , மென்பொருள் பொறியியல் ,

NASA Green Signals Four New Astrophysics Missions to Study Hidden Secrets of Universe

NASA Green Signals Four New Astrophysics Missions to Study Hidden Secrets of Universe
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NASA has selected four small-scale astrophysics missions for further concept development in a new program called Pioneers to study the secrets of the universe. Through small satellites and scientific balloons, these selections enable new platforms for exploring cosmic phenomena such as galaxy evolution, exoplanets, high-energy neutrinos, and neutron star mergers, the US space agency said in a statement on Thursday.
The principal investigators of these concept studies bring innovative, out-of-the-box thinking to the problem of how to do high-impact astrophysics experiments on a small budget, said Thomas H Zurbuchen, associate administrator of NASA s Science Mission Directorate. ....

United States , Thomash Zurbuchen , Paul Hertz , Science Mission Directorate , Nasa Satellites , Nasa Washington Headquarters , ஒன்றுபட்டது மாநிலங்களில் , பால் ஹெர்ட்ஸ் , அறிவியல் பணி இயக்குநரகம் , நாசா செயற்கைக்கோள்கள் , நாசா வாஷிங்டன் தலைமையகம் ,

Move-in day

Brian Harris, left, helps Colt, center, his son, 18, as he moves into Streit Hall as Colt Harris’ twin sister Jalen feeds a Washington State University campus parking meter Thursday ....

Brian Harris , Washington State University , Streit Hall , Colt Harri , Parking Meter , Washington State , பிரையன் ஹாரிஸ் , வாஷிங்டன் நிலை பல்கலைக்கழகம் , நீரோடை மண்டபம் , கோல்ட் ஹரி , வாகன நிறுத்துமிடம் மீட்டர் , வாஷிங்டன் நிலை ,