Dubai PR Network, Online Press Release from Dubai and Middle East
 
Environment & Nature(Government, Legal & Humanity)
Filter PR by
  
Astrophysicists Measure Precise Rotation Pattern of Sun-like Stars for the First Time
 
Astrophysicists Measure Precise Rotation Pattern of Sun-like Stars for the First Time
Equators of Sun-like stars rotate up to two and a half times as fast as higher latitudes, NYU Abu Dhabi researchers have discovered
 
Fast Facts
  • Scientists measure differential rotation on Sun-like stars for the first time
  • Sun-like stars rotate up to two and a half times faster at the equator than at mid- to high-latitudes, a finding that challenges current science on how stars rotate
  • Studying how stars spin can provide insights into how stars, including the sun, generate magnetic activity
Abu Dhabi, September 22, 2018:   Sun-like stars rotate up to two and a half times faster at the equator than at higher latitudes, a finding by researchers at NYU Abu Dhabi that challenges current science on how stars rotate.
 
Until now, little was known about the precise rotational patterns of Sun-like stars, only that the equator spins faster than at higher latitudes, similar to the Sun.
 
Scientists at the NYU Abu Dhabi Center for Space Science used observations from NASA’s Kepler mission and asteroseismology — the study of sound waves traveling inside stars — to determine with precision how Sun-like stars rotate, which no other scientific method has been able to achieve.
 
Their study found that Sun-like stars, characterized as being like the Sun in mass and age, do indeed rotate in a similar manner as the Sun in that their equatorial regions rotate more rapidly than at mid- to high latitudes. But there’s a key difference.
 
The equator of the Sun rotates about 10 percent faster than its mid latitudes, while equators of Sun-like stars spin up to two and a half times faster than their mid latitudes.
 
“This is very unexpected, and challenges current numerical simulations, which suggest that stars like these should not be able to sustain differential rotation of this magnitude,” said Othman Benomar, research associate at the NYU Abu Dhabi Center for Space Science and lead author of the study published in Science Magazine.
 
“Understanding differential rotation — how fast one part of a star spins compared to the rest — is not only important for a complete understanding of how a star works, it will help us gain deeper insights about their magnetic fields,” explained Katepalli Sreenivasan, principal investigator of the NYU Abu Dhabi Center for Space Science.
 
Magnetic fields on the Sun have been known to cause enormous solar storms that frequently disrupt orbiting space satellites and have knocked out power grids on Earth.
 
Scientists agree that the rotation of the Sun plays a crucial role in the generation of the solar magnetic field, but the exact details still remain a mystery, despite the Sun having been observed and studied in great detail.
 
Sreenivasan added, “learning more about how stars rotate and generate their own magnetic fields could help us gain further insight into the solar dynamo, the physical process that generates the Sun’s magnetic field.”
 
The NYUAD Center for Space Science is supported by the NYUAD Research Institute, which promotes cutting-edge and innovative research through the support of its 12 centers, labs, and projects.
 
Additional facts
 
Asteroseismology
Allows scientists to determine precisely how a star rotates by measuring frequencies of acoustic waves inside the star. Helioseismology is used on the Sun for the same purpose.
 
Differential rotation
Rotation speeds on the Sun and stars vary at different latitudes because they are fluid (the middle spins faster than the poles). By contrast, a spinning basketball has rigid rotation — it spins at the same speed from top to bottom.


Posted by : Dubai PR Network Editorial Team
Viewed 7210 times
PR Category : Government, Legal & Humanity
Posted on : Saturday, September 22, 2018  9:24:00 AM UAE local time (GMT+4)
Replication or redistribution in whole or in part is expressly prohibited without the prior written consent of DubaiPRNetwork.com.
Previous Story : World Green Economy Summit 2018 to underscore role of youth ...
Next Story : The Sustainable City names Dolores Shelleh as Brand Ambassad...
Email this article Print this article

Share this article with your friends and followers
NewsVine
Back to Section Home

Related Stories



 
 
Most Viewed Press Release posted in the last 7 days
Childrenswear That Speaks With a Conscience [9754-Views]
Versace – Spring/Summer 2019 Collection [9486-Views]
Dubai Jewellers Come Together to Celebrate UAE Mothers [8802-Views]
Put your best skin forward for Spring/Summer 19' with Kocostar's Camouflage range [8467-Views]
The Amphis Ritual [7375-Views]
Bentley Centenary Watch Celebrates a Proud Partnership [6826-Views]
GROHE Shapes the Future of Water with a record number of innovations at ISH 2019 [6521-Views]
The Perfect Gift for Mother's Day [6448-Views]
UL and Saudi Telecom Company announce plans to establish a Center of Excellence in Saudi A... [6399-Views]
Pomsies launch six new Fabulous Friends! [6137-Views]
Al-Futtaim Toyota and UAE Government Authorities confiscate 453,456 counterfeit car parts ... [6027-Views]
Now United to Perform at World Games' Opening Ceremony Pre-Show [5905-Views]
Time to Honour Our Moms with the Best from HONOR: Mother's Day Gift Guide [5807-Views]
Salvatore Ferragamo Timepieces - Spring/Summer 2019 Collection [5514-Views]
Salvatore Ferragamo Timepieces – Spring/Summer 2019 Collection [5490-Views]
Malabar Gold & Diamonds awarded by ‘The Health Education and Promotion Department, Ministr... [5380-Views]
Tonda 1950 Stone-set range [5368-Views]
Trade-in Your Old Device for a brand new Galaxy S10 [5203-Views]
Get Kylie Minogue's Youthful Complexation with The Organic Pharmacy's Rose Diamond Cream [5100-Views]
New in this month at Home and Soul Dubai [4959-Views]
The Balmain Haute Elegance Oval mirrors the brand's soul [4691-Views]
Go on, catch the summer moments [4685-Views]
Celebrate Mother's Day with the perfect gift from Sawalef Perfumes [4599-Views]
World's most expensive perfume ‘SHUMUKH' launched at The Dubai Mall as an exquisite tribut... [4587-Views]
Dubai Modest Fashion Week Celebrates a Successful Return for 2019 [4575-Views]
 
RSS Facebook Twitter LinkedDin
 
Top Sections
 
Top Stories