* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, September 8, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

    How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

    How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Eternal Flames: Unraveling the Mystery of Delayed White Dwarfs

March 9, 2024
in Science
Eternal Flames: Unraveling the Mystery of Delayed White Dwarfs
Share on FacebookShare on Twitter

By Milan P. Ilnyckyj, Canadian Institute for Theoretical Astrophysics March 8, 2024

Astrophysics White Dwarf Star Concept

New research challenges the traditional view of white dwarfs as mere remnants of dead stars by explaining the prolonged luminosity of delayed white dwarfs. Credit: SciTechDaily.com

Researchers discovered why some white dwarfs remain luminous for billions of years: a core process where lighter crystals rise and denser liquids sink, balancing the energy and maintaining surface brightness.

Your astronomy textbook might describe white dwarfs as the cool and comparatively uninteresting remnants of dead stars. This perspective is challenged by the previously unexplained existence of delayed white dwarfs, which defy expectations by shining as brightly as some familiar main-sequence stars for billions of years.

New research by Simon Blouin with co-authors at the University of Warwick and the Institute for Advanced Study, in Princeton, NJ reveals that in the cores of these strangely behaving stars, lower-density crystals form and float up while denser liquids with heavy impurities sink. This process of solid-liquid distillation interrupts cooling for billions of years and explains all the observed properties of the unusual population of delayed white dwarfs.

Stellar Life Cycle and White Dwarf Cooling

The lifecycle of a star begins in a gas nebula, where gravity begins to pull matter together until it is assembled in such quantities that the new sun’s core begins to fuse hydrogen nuclei together and pour light out into the universe. Eventually, most stars exhaust their nuclear fuel, shed off their outer layers into a planetary nebula, and end up as Earth-sized white dwarfs in which fusion no longer takes place.

With no fuel source for fusion, it was expected that these stars would simply cool for the rest of time. These assumptions about cooling feed into estimates of the white dwarf’s age, in turn influencing our understanding of the formation of our Milky Way.

Gaia's Sky in Color

Gaia, operated by the European Space Agency (ESA), surveys the sky from Earth orbit to create the largest, most precise, three-dimensional map of our Galaxy. This image shows Gaia’s all-sky view of the Milky Way based on measurements of almost 1.7 billion stars. Credit: ESA/Gaia/DPAC, CC BY-SA 3.0 IGO

Gaia Satellite Observations and Research Findings

The expectation of cooling white dwarfs clashes with observational data from the European Space Agency’s Gaia satellite, which showed in 2019 that a population of white dwarfs was able to apparently stop cooling for over eight billion years, which is nearly twice the age of the Earth and over half the age of the universe since the Big Bang.

The findings of Blouin and his collaborators explain the long-lasting glow of white dwarfs with the “distillation process” (light crystals forming and floating up while denser liquids sink down), which causes the release of gravitational energy. The energy output from this process almost exactly balances the energy radiated to space by the white dwarf, making its surface luminosity and temperature essentially constant.

“Going forward,” Blouin explains, “it will be important to take this mechanism into account when using white dwarfs as cosmic clocks to measure the ages of stars.”

Contributions of Simon Blouin

Simon Blouin is a Canadian Institute for Theoretical Astrophysics (CITA) National Fellow working at the University of Victoria with Professor Falk Herwig. Blouin earned his doctorate in physics at l’Université de Montréal in 2019 before completing post-doctoral fellowships at the U.S. Los Alamos National Laboratory and at UVic. His work employs a wide variety of simulation techniques to improve models of white dwarfs. This improves physicists’ and astronomers’ ability to use these stars as accurate cosmic clocks that help infer the history of stars forming in our Milky Way galaxy.

With his latest research, just published in Nature, Blouin and his collaborators identify the mechanism that keeps delayed white dwarfs hot for billions of years thus explaining the second stellar life of white dwarfs.

Reference: “Buoyant crystals halt the cooling of white dwarf stars” by Antoine Bédard, Simon Blouin and Sihao Cheng, 6 March 2024, Nature.
DOI: 10.1038/s41586-024-07102-y

Antoine Bédard, joint first author of the article, is an NSERC Postdoctoral Fellow at the University of Warwick, UK. He obtained his PhD in physics from the Université de Montréal in 2022.

Simon Blouin is a Canadian Institute for Theoretical Astrophysics (CITA) National Fellow working at the University of Victoria with Professor Falk Herwig. Blouin earned his doctorate in physics at l’Université de Montréal in 2019 before completing post-doctoral fellowships at the U.S. Los Alamos National Laboratory and at UVic.

Sihao Cheng, contributing author of the article and discoverer of the cooling anomaly in 2019, is a postdoctoral member at the Institute for Advanced Study in Princeton. He obtained his PhD from the Johns Hopkins University in 2021.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/eternal-flames-unraveling-the-mystery-of-delayed-white-dwarfs/

Tags: EternalFlamesscience
Previous Post

International Women’s Day: PAHO Director calls for investment in women’s leadership to transform the health sector

Next Post

The Trojan Horse Approach – New Method Could Revolutionize Lung Cancer Treatment

Invasive flathead catfish now top predators in Susquehanna River in Pennsylvania – Phys.org

Invasive Flathead Catfish Rise to Top Predator Status in Pennsylvania’s Susquehanna River

September 8, 2025
Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

September 8, 2025
Ripple will launch their Fall 2025 Watershed Science Field Season following DayOne – Montana Tech

Ripple Launches Exciting Fall 2025 Watershed Science Field Season

September 8, 2025
Cancer risk according to lifestyle risk score trajectories: a population-based cohort study – Nature

Cancer risk according to lifestyle risk score trajectories: a population-based cohort study – Nature

September 8, 2025
AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

September 8, 2025
University of Missouri changes student ticket claim process to lottery – KOMU 8

University of Missouri Launches Exciting New Lottery System for Student Ticket Claims

September 8, 2025
Poland vs Finland: UEFA World Cup Qualifiers stats & head-to-head – BBC

Poland vs Finland: Key Stats and Head-to-Head Showdown in UEFA World Cup Qualifiers

September 8, 2025
Putin Ally Issues Dire Warning About Russian Economy – Newsweek

Putin Ally Issues Stark Warning About Russia’s Economic Future

September 8, 2025
Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

September 8, 2025
Trump’s new law will limit payments to hospitals that treat low-income patients – Stateline

Trump’s New Law Targets Major Cuts to Payments for Hospitals Serving Low-Income Patients

September 8, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (813)
  • Economy (830)
  • Entertainment (21,708)
  • General (16,921)
  • Health (9,872)
  • Lifestyle (844)
  • News (22,149)
  • People (833)
  • Politics (837)
  • Science (16,040)
  • Sports (21,330)
  • Technology (15,811)
  • World (812)

Recent News

Invasive flathead catfish now top predators in Susquehanna River in Pennsylvania – Phys.org

Invasive Flathead Catfish Rise to Top Predator Status in Pennsylvania’s Susquehanna River

September 8, 2025
Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

September 8, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version