Sun-like stars rotate upwards to 2 as well as a one-half times faster at the equator than at higher latitudes, a finding past times researchers at NYU Abu Dhabi that challenges electrical current scientific discipline on how stars rotate.
 |
| Sun-like stars rotate differentially, alongside the equator rotating faster than the higher latitudes. The bluish arrows inward |
the figure stand upwards for rotation speed. Differential rotation is idea to last an essential part for generating
magnetic action as well as starspots [Credit: MPI for Solar System Research/MarkGarlick.com] Until now, niggling was known most the precise rotational patterns of Sun-like stars, solely 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 as well as asteroseismology -- the written report of audio waves traveling within stars -- to decide alongside precision how Sun-like stars rotate, which no other scientific method has been able to achieve.
Their written report institute that Sun-like stars, characterized equally beingness similar the Lord's Day inward volume as well as age, create indeed rotate inward a similar fashion equally the Lord's Day inward that their equatorial regions rotate to a greater extent than apace than at mid- to high latitudes. But there's a primal difference.
The equator of the Lord's Day rotates most 10 per centum faster than its mid latitudes, spell equators of Sun-like stars spin upwards to 2 as well as a one-half times faster than their mid latitudes.
"This is real unexpected, as well as challenges electrical current numerical simulations, which propose that stars similar these should non last able to sustain differential rotation of this magnitude," said Othman Benomar, question associate at the NYU Abu Dhabi Center for Space Science as well as Pb writer of the written report published inward Science.
"Understanding differential rotation -- how fast i purpose of a star spins compared to the residuum -- is non solely of import for a consummate agreement of how a star works, it volition assist us attain deeper insights most their magnetic fields," explained Katepalli Sreenivasan, principal investigator of the NYU Abu Dhabi Center for Space Science.
Magnetic fields on the Lord's Day convey been known to drive enormous solar storms that oftentimes disrupt orbiting infinite satellites as well as convey knocked out ability grids on Earth.
Scientists concur that the rotation of the Lord's Day plays a crucial role inward the generation of the solar magnetic field, merely the exact details nonetheless stay a mystery, despite the Lord's Day having been observed as well as studied inward keen detail.
Sreenivasan added, "learning to a greater extent than most how stars rotate as well as generate their ain magnetic fields could assist us attain farther insight into the solar dynamo, the physical procedure that generates the Sun's magnetic field."
Source: NYU Abu Dhabi [September 21, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
magnetic action as well as starspots [Credit: MPI for Solar System Research/MarkGarlick.com] Until now, niggling was known most the precise rotational patterns of Sun-like stars, solely 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 as well as asteroseismology -- the written report of audio waves traveling within stars -- to decide alongside precision how Sun-like stars rotate, which no other scientific method has been able to achieve.
Their written report institute that Sun-like stars, characterized equally beingness similar the Lord's Day inward volume as well as age, create indeed rotate inward a similar fashion equally the Lord's Day inward that their equatorial regions rotate to a greater extent than apace than at mid- to high latitudes. But there's a primal difference.
The equator of the Lord's Day rotates most 10 per centum faster than its mid latitudes, spell equators of Sun-like stars spin upwards to 2 as well as a one-half times faster than their mid latitudes.
"This is real unexpected, as well as challenges electrical current numerical simulations, which propose that stars similar these should non last able to sustain differential rotation of this magnitude," said Othman Benomar, question associate at the NYU Abu Dhabi Center for Space Science as well as Pb writer of the written report published inward Science.
"Understanding differential rotation -- how fast i purpose of a star spins compared to the residuum -- is non solely of import for a consummate agreement of how a star works, it volition assist us attain deeper insights most their magnetic fields," explained Katepalli Sreenivasan, principal investigator of the NYU Abu Dhabi Center for Space Science.
Magnetic fields on the Lord's Day convey been known to drive enormous solar storms that oftentimes disrupt orbiting infinite satellites as well as convey knocked out ability grids on Earth.
Scientists concur that the rotation of the Lord's Day plays a crucial role inward the generation of the solar magnetic field, merely the exact details nonetheless stay a mystery, despite the Lord's Day having been observed as well as studied inward keen detail.
Sreenivasan added, "learning to a greater extent than most how stars rotate as well as generate their ain magnetic fields could assist us attain farther insight into the solar dynamo, the physical procedure that generates the Sun's magnetic field."
Source: NYU Abu Dhabi [September 21, 2018]
Sumber http://archaeologynewsnetwork.blogspot.com
Buat lebih berguna, kongsi:
