• DMCA
  • Disclaimer
  • Privacy Policy
  • Cookie Privacy Policy
  • Terms and Conditions
  • Contact us
Inter Space Sky Way
  • Home
  • Alien
  • UFO
  • Space
  • NASA
  • Space Flight
  • Astronomy
No Result
View All Result
  • Home
  • Alien
  • UFO
  • Space
  • NASA
  • Space Flight
  • Astronomy
No Result
View All Result
Inter Space Sky Way
No Result
View All Result
Home Space

AI-powered ChronoFlow makes use of stellar rotation charges to estimate stars’ ages

July 3, 2025
in Space
61 3
0
AI-powered ChronoFlow makes use of stellar rotation charges to estimate stars’ ages
77
SHARES
1.3k
VIEWS
Share on FacebookShare on Twitter


You might also like

China’s Tianwen 2 asteroid-sampling spacecraft snaps a selfie with Earth

Rogue planet beneficial properties 6 billion tonnes per second in report progress spurt

Devoted beginner discovers supernova in distant galaxy

U of T astronomers develop AI model to determine stars' ages
The MPG/ESO 2.2-meter telescope at ESO’s La Silla Observatory in Chile captured this colourful view of the brilliant star cluster NGC 3532. Among the stars nonetheless shine with a sizzling bluish colour, however lots of the extra large ones have grow to be pink giants and glow with a wealthy orange hue. Credit score: ESO/G. Beccari

Determining the ages of stars is prime to understanding many areas of astronomy—but, it stays a problem since stellar ages cannot be ascertained by means of remark alone. So, astronomers on the College of Toronto have turned to synthetic intelligence for assist.

Their new mannequin, known as ChronoFlow, makes use of a dataset of rotating stars in clusters and machine studying to find out how the pace at which a star rotates modifications because it ages.

The method, published just lately in The Astrophysical Journal, predicts the ages of stars with an accuracy beforehand inconceivable to attain with analytical fashions.

“The primary ‘Wow’ second was within the proof-of-concept section once we realized that this system truly confirmed lots of promise,” says Phil Van-Lane, a Ph.D. candidate within the College of Arts & Science’s David A. Dunlap division of astronomy and astrophysics who led the analysis.

Van-Lane labored on the challenge with Josh Speagle and Gwen Eadie, who’re each assistant professors of astrostatistics within the departments of statistical sciences and astronomy and astrophysics.

The analysis attracts on two current approaches to higher estimate stars’ ages.

The primary stems from the truth that stars are inclined to type in clusters. This implies researchers can typically decide the age of all stars within the cluster by observing the evolutionary levels of a cluster’s increased mass stars, which progress extra quickly than these of decrease mass stars.

On the similar time, researchers know that as stars become old, their spin tends to decelerate because of the interplay of the star’s magnetic area with its stellar wind—a phenomenon that’s nicely understood, however tough to quantify with a easy mathematical formulation.

With ChronoFlow, the U of T researchers assembled the largest-ever catalogue of rotating stars in clusters, with about 8,000 stars in over 30 clusters of assorted ages, by utilizing knowledge from stellar surveys equivalent to Kepler, K2, TESS and GAIA. Subsequent, they used the dataset to coach their AI mannequin to foretell how the pace at which a star rotates modifications because it ages.

“Our methodology will be likened to making an attempt to guess the age of an individual,” says Speagle, who guided the challenge from begin to end. “In astronomy, we do not know the ages of each star. We all know that teams of stars have the identical age, so this may be like having a bunch of photographs of individuals at 5 years previous, 15 years previous, 30 years previous, and 50 years previous, then having somebody hand you a brand new picture and ask you to guess how previous that particular person is. It is a difficult downside.”

The consequence? ChronoFlow has discovered to estimate the ages of different stars with exceptional precision. It is because it fashions how rotation charges of populations of stars are anticipated to evolve over time.

The analysis might have necessary implications throughout many points of astronomy. Figuring out stellar ages is critical to understanding not solely how stars work, but in addition modeling how exoplanets type and evolve, and studying in regards to the historical past of the evolution of our personal Milky Manner in addition to that of different galaxies.

The success of ChronoFlow additionally demonstrates how machine studying fashions might yield beneficial insights into different astrophysical issues.

The mannequin will probably be out there to the general public, together with documentation and tutorials which give steps for anybody to deduce the ages of stars from observations. The code will be found on GitHub.

Extra info:
Phil R. Van-Lane et al, ChronoFlow: A Information-driven Mannequin for Gyrochronology, The Astrophysical Journal (2025). DOI: 10.3847/1538-4357/adcd73

Offered by
College of Toronto


Quotation:
AI-powered ChronoFlow makes use of stellar rotation charges to estimate stars’ ages (2025, July 2)
retrieved 2 July 2025
from

This doc is topic to copyright. Other than any truthful dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is offered for info functions solely.





Source link

Tags: AgesAIpoweredChronoFlowestimateratesRotationStarsstellar
Share31Tweet19

Recommended For You

China’s Tianwen 2 asteroid-sampling spacecraft snaps a selfie with Earth

by Chato80
October 2, 2025
0
China’s Tianwen 2 asteroid-sampling spacecraft snaps a selfie with Earth

Smile! A spacecraft simply caught you — and everybody else on our planet — on digicam whereas snapping a selfie.China's Tianwen 2 spacecraft took an image of itself,...

Read more

Rogue planet beneficial properties 6 billion tonnes per second in report progress spurt

by Chato80
October 2, 2025
0
Rogue planet beneficial properties 6 billion tonnes per second in report progress spurt

Artist’s impression of Cha 1107-7626, a rogue planet about 620 gentle years awayESO/L. Calçada/M. Kornmesser A ravenous rogue planet has been caught consuming 6 billion tonnes of gasoline...

Read more

Devoted beginner discovers supernova in distant galaxy

by Chato80
October 2, 2025
0
Devoted beginner discovers supernova in distant galaxy

Filipp at his laptop computer. Credit score: Filipp Romanov. Astronomy is more and more changing into an internet affair. Current discoveries of interstellar Comet 3I/ATLAS and R2 SWAN...

Read more

Measuring Earth’s Wobble With out Wanting on the Stars

by Chato80
October 1, 2025
0
Measuring Earth’s Wobble With out Wanting on the Stars

Most individuals are aware of the truth that the Earth spins on its axis as soon as day by day. The spin nonetheless, isn’t as regular as you...

Read more

European House Company and Korea AeroSpace Administration embark on new cooperation

by Chato80
October 1, 2025
0
European House Company and Korea AeroSpace Administration embark on new cooperation

Company 01/10/2025 368 views 6 likes The European House Company and the Korea AeroSpace Administration (KASA) have introduced they'll work collectively on peaceable makes use of of house,...

Read more
Next Post
See Mercury at biggest elongation, its farthest from the solar within the night sky this week

See Mercury at biggest elongation, its farthest from the solar within the night sky this week

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Browse by Category

  • Alien
  • Astronomy
  • NASA
  • Space
  • Space Flight
  • UFO

Recent News

China’s Tianwen 2 asteroid-sampling spacecraft snaps a selfie with Earth

China’s Tianwen 2 asteroid-sampling spacecraft snaps a selfie with Earth

October 2, 2025
The JWST Spies The Uncooked Supplies For Exomoons

The JWST Spies The Uncooked Supplies For Exomoons

October 2, 2025
Did 3I/ATLAS spark the 1977 ‘Wow Sign’? Similar area, simply days aside

Did 3I/ATLAS spark the 1977 ‘Wow Sign’? Similar area, simply days aside

October 2, 2025
Rogue planet beneficial properties 6 billion tonnes per second in report progress spurt

Rogue planet beneficial properties 6 billion tonnes per second in report progress spurt

October 2, 2025
Practically invisible asteroids round Venus may threaten Earth — however don’t fret, not for some time

Practically invisible asteroids round Venus may threaten Earth — however don’t fret, not for some time

October 2, 2025
Devoted beginner discovers supernova in distant galaxy

Devoted beginner discovers supernova in distant galaxy

October 2, 2025
  • DMCA
  • Disclaimer
  • Privacy Policy
  • Cookie Privacy Policy
  • Terms and Conditions
  • Contact us
INTER SPACE SKY WAY

Copyright © 2023 Inter Space Sky Way.
Inter Space Sky Way is not responsible for the content of external sites.

No Result
View All Result
  • Home
  • Alien
  • UFO
  • Space
  • NASA
  • Space Flight
  • Astronomy

Copyright © 2023 Inter Space Sky Way.
Inter Space Sky Way is not responsible for the content of external sites.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In