Monday, April 12, 2021
Home Lead Story Study: How And Why Stars Die?

Study: How And Why Stars Die?

A proper understanding of fast oscillations can actually hold the key to why some stars explode from supernovas

Researchers from Northwestern University (NU) has found that by studying all three “flavors” involved in a supernova, they have unlocked more clues as to how and why stars die.

Contrary to the past practice of simplifying studies by studying one flavor while ignoring the other two, the researchers in the new study created a non-linear simulation of a “fast conversion” when three neutrino flavors are present, where a fast conversion is marked by neutrinos interacting and changing flavors.

Follow NewsGram on Twitter to stay updated about the World news.

They removed the assumption that the three flavors of neutrinos, muon, electron, and tau neutrinos, have the same angular distribution, giving them each a different distribution. A two-flavor setup of the same concept looks at electron neutrinos and “x” neutrinos, in which x can be either muon or tau neutrinos and where differences between the two are insignificant.

When an enormous number of neutrinos are sent careening during the massive explosion of a core-collapse supernova, they begin to oscillate. Interactions between neutrinos change the properties and behaviors of the whole system, creating a coupled relationship.

Stars
The new study created a non-linear simulation of a “fast conversion.” Pixabay

Therefore, when neutrino density is high, a fraction of neutrinos interchange flavors. When different flavors are emitted in different directions deep within a star, conversions occur rapidly and are called “fast conversions.” Interestingly, the research found that as the number of neutrinos grows, so do their conversion rates, regardless of mass, reports Xinhua news agency.

ALSO READ: 2020: The Defining Year For The Indian Space Sector

“We are trying to convince the community that when you take these fast conversions into account, you have to use all three flavors to understand it,” said senior author Manibrata Sen, a postdoctoral researcher currently based at NU under the Network for Neutrinos, Nuclear Astrophysics, and Symmetries program at the University of California – Berkeley.

“A proper understanding of fast oscillations can actually hold the key to why some stars explode from supernovas.” In the next step, the researchers hope to make their results more generic by including spatial dimensions in addition to components of momentum and time. The study has been published in the journal Physical Review Letters. (IANS)

STAY CONNECTED

19,518FansLike
362FollowersFollow
1,773FollowersFollow

Most Popular

Patients Treated With Antipsychotic Drugs At Lower Risk Of Covid19 Infection

Patients treated with antipsychotic drugs have a lower risk of becoming infected or suffer a milder form of SARS-CoV-2 -- the virus causing Covid-19...

US Scientists Translate The Structure Of A Spider Web Into Music

A team of scientists at the Massachusetts Institute of Technology (MIT) in the US has translated the structure of a spider web into music,...

Is New Kashmir Becoming A National Sports Hub?

While inaugurating the first Water Sports Centre adopted by his Ministry in Kashmir last week, Union Minister of State for Youth Affairs and Sports...

How Science Can Be As Comforting as Religion

BY- JAYA CHOUDHARY For decades, it seemed as if religion was attempting to teach us truths about the universe and just got things a bit...

Doomsday Glacier May Be Melting Faster Than Expected

The supply of warm water to Antarctica's Thwaites Glacier, also known as the "doomsday glacier", is larger than previously thought, triggering concerns of faster...

A Better Nasal Swab For Covid-19 Testing Developed In US

A Q-tip cotton swab inserted into your nose to gauge the presence of Covid-19 infections is a pain and not a pleasant experience. Now,...

Highly-Anticipated Upcoming Action Films From The South

Action has been a perennial favorite genre among lovers of mainstream cinema, especially in the Telugu, Tamil, Kannada, and Malayalam film industries. The larger-than-life...

Pets Helped Children Manage Stress And Loneliness In The Pandemic

Family pets help children better manage feelings of stress and loneliness, which have been greatly exacerbated by virtual schooling as a result of the...

Recent Comments