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Placing cosmological constraints on quantum gravity phenomenology

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A description of gravity compatible with the principles of quantum mechanics has long been a widely pursued goal in physics. Existing theories of this quantum gravity often involve mathematical corrections to Heisenberg s Uncertainty Principle (HUP), which quantifies the inherent limits in the accuracy of any quantum measurement. These corrections arise when gravitational interactions are considered, leading to a Generalized Uncertainty Principle (GUP). Two specific GUP models are often used: the first modifies the HUP with a linear correction, while the second introduces a quadratic one. Through new research published in
EPJ C, Serena Giardino and Vincenzo Salzano at the University of Szczecin in Poland have used well-established cosmological observations to place tighter constraints on the quadratic model, while discrediting the linear model. ....

Serena Giardino , Stephen Hawking , Vincenzo Salzano , University Of Szczecin , Uncertainty Principle , Generalized Uncertainty Principle , Chemistry Physics Materials Sciences , செரீனா ஜியார்டினோ , ஸ்டீபன் ஹாக்கிங் , வின்சென்சோ சல்சானோ , நிச்சயமற்ற தன்மை ப்ரிந்ஸிபல் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் ,

Giant Red Star Betelgeuse Will Take Another 1,00,000 Years to Explode, Says Study

Giant Red Star Betelgeuse Will Take Another 1,00,000 Years to Explode, Says Study
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A recent study has found that even though it may seem that the giant red star Betelgeuse is ready to die any moment, it will take another 1,00,000 years for it to actually perish.
A team of international scientists led by Meridith Joyce from the Australian National University (ANU), which included five other members Shing-Chi Leung, László Molnár, Michael Ireland, Chiaki Kobayashi, and Ken ichi Nomoto published their findings in
The supergiant star is a part of the Orion constellation and has piqued scientists interest due to its conspicuous behaviour lately. In a statement to the Australian National University, Dr Joyce said that normally Betelgeuse is one of the brightest stars in the sky, but her team observed two drops in the brightness of the star since late 2019. This development prompted the speculation that it could explode soon but the study offers a di ....

Meridith Joyce , Kenichi Nomoto , Chiaki Kobayashi , Shing Chi Leung , Australian National University , University Of Tokyo , Chi Leung , Michael Ireland , Astrophysical Journal , Australia National University , Orion Constellation , The Astrophysics Journal , மெரிடித் மகிழ்ச்சி , சியாகி கோபயாஷி , ஷிங் சி லேஉங் , ஆஸ்திரேலிய தேசிய பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் டோக்கியோ , சி லேஉங் , மைக்கேல் ஐயர்ல்யாஂட் , வானியற்பியல் இதழ் , ஆஸ்திரேலியா தேசிய பல்கலைக்கழகம் , ஒரையந் விண்மீன் , தி வானியற்பியல் இதழ் ,

Embry-Riddle alumna helps unravel key mysteries of rare stars

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IMAGE: Dr. Noel Richardson, assistant professor of Physics and Astronomy at Embry-Riddle, mentored now-alumna Laura M. Lee, who helped determine the visual orbit and dynamical mass of the Wolf-Rayet 133 binary.
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Credit: Embry-Riddle/Jason Kadah
Within the constellation Cygnus, an elderly star and its massive companion are having one last hurrah, flinging off mass at an incredible rate before they explode as supernovae and collapse into a black hole.
Now, researchers including recent Embry-Riddle Aeronautical University graduate Laura M. Lee have mapped the elderly star s orbit around its oversized and equally ancient partner. In a scientific first, they have also determined the dynamical mass of both stars that make up a binary system called Wolf-Rayet 133. ....

New York , United States , Grant Hill , United Kingdom , Mount Wilson , Northern Ireland , Gail Schaefer , Los Angeles , Jason Aufdenberg , Andreasac Sander , Lauram Lee , Noel Richardson , Georgia State University Center , Institute Of Astronomy , Michigan State University , Institute Of Planetology , University Of Denver , University Of Exeter , Georgia State University , University Of Arizona , Riddle Aeronautical University , Embry Riddle Aeronautical University , Astrophysical Journal Letters , Nitrogen Rich Wolf Rayet , High Angular Resolution Astronomy , New York City ,

Stargazing: Anticipating Mars 2020 mission arrival

Stargazing: Anticipating Mars 2020 mission arrival
fredericksburg.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from fredericksburg.com Daily Mail and Mail on Sunday newspapers.

Planetary Instrument , X Ray Lithochemistry , Geological Structure , Chemical Element , கிரகங்கள் கருவி , செவ்வாய் கிரகம் , புவியியல் அமைப்பு , இரசாயன உறுப்பு ,

Zooming in on Star Formation

ESO, European Organisation for Astronomical Research in the Southern Hemisphere ....

John Herschel , Multi Unit Spectroscopic Explorer , Eso Org , La Silla , ஜான் ஹெர்ஷல் , எஸொ ஒர்க் , லா சில்லா ,