* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Saturday, May 31, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Rachel Guttman Launches Entertainment Law Firm Gutt Law, PLLC [Exclusive] – MusicRow.com

    Rachel Guttman Unveils Exciting New Entertainment Law Firm: Gutt Law, PLLC!

    HYBE Cashes In: Offloads Final Stake in K-Pop Rival SM Entertainment for $177 Million!

    Allied Gaming & Entertainment Receives Expected Nasdaq Notice Regarding Delayed Quarterly Report – Business Wire

    Allied Gaming & Entertainment Faces Nasdaq Notice Over Delayed Quarterly Report

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Aziz Ansari made Keanu Reeves Indian food so he wouldn’t feel ‘freaked out’ directing him in Good Fortune (exclusive) – Entertainment Weekly

    Aziz Ansari Whips Up Indian Cuisine for Keanu Reeves to Ease Directing Jitters in Good Fortune

    Cassie Ventura welcomes third child – crossroadstoday.com

    Cassie Ventura Joyfully Welcomes Her Third Child!

  • 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
    Stop the Machines: The Rise of Anti-Technology Extremism – International Centre for Counter-Terrorism – ICCT

    Unplugged: The Surge of Anti-Technology Extremism

    Finland to head EU’s quantum defense technology project – Latest news from Azerbaijan

    Finland Takes the Lead in Pioneering EU’s Quantum Defense Technology Initiative!

    i3D Robotics Unveils Breakthrough Glass Defect Detection Technology – USGlass Magazine

    Revolutionary Glass Defect Detection Technology Unveiled by i3D Robotics!

    4Liberty Announces Collaboration with Itron to Drive Innovation in Utility Technology Adoption and Optimization – FinancialContent

    4Liberty Partners with Itron to Revolutionize Utility Technology and Boost Innovation

    Q1 2025 Quantum Technology Investment: What’s Driving the Surge in Quantum Investment? – The Quantum Insider

    Unleashing the Future: Exploring the Surge in Quantum Technology Investments for Q1 2025

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Rachel Guttman Launches Entertainment Law Firm Gutt Law, PLLC [Exclusive] – MusicRow.com

    Rachel Guttman Unveils Exciting New Entertainment Law Firm: Gutt Law, PLLC!

    HYBE Cashes In: Offloads Final Stake in K-Pop Rival SM Entertainment for $177 Million!

    Allied Gaming & Entertainment Receives Expected Nasdaq Notice Regarding Delayed Quarterly Report – Business Wire

    Allied Gaming & Entertainment Faces Nasdaq Notice Over Delayed Quarterly Report

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Weekly Entertainment Report May 29-June 1: Where to find lively arts, music, and shows – Manchester Ink Link

    Aziz Ansari made Keanu Reeves Indian food so he wouldn’t feel ‘freaked out’ directing him in Good Fortune (exclusive) – Entertainment Weekly

    Aziz Ansari Whips Up Indian Cuisine for Keanu Reeves to Ease Directing Jitters in Good Fortune

    Cassie Ventura welcomes third child – crossroadstoday.com

    Cassie Ventura Joyfully Welcomes Her Third Child!

  • 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
    Stop the Machines: The Rise of Anti-Technology Extremism – International Centre for Counter-Terrorism – ICCT

    Unplugged: The Surge of Anti-Technology Extremism

    Finland to head EU’s quantum defense technology project – Latest news from Azerbaijan

    Finland Takes the Lead in Pioneering EU’s Quantum Defense Technology Initiative!

    i3D Robotics Unveils Breakthrough Glass Defect Detection Technology – USGlass Magazine

    Revolutionary Glass Defect Detection Technology Unveiled by i3D Robotics!

    4Liberty Announces Collaboration with Itron to Drive Innovation in Utility Technology Adoption and Optimization – FinancialContent

    4Liberty Partners with Itron to Revolutionize Utility Technology and Boost Innovation

    Q1 2025 Quantum Technology Investment: What’s Driving the Surge in Quantum Investment? – The Quantum Insider

    Unleashing the Future: Exploring the Surge in Quantum Technology Investments for Q1 2025

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    MIT Team Releases Tempting Report on Electric Aircraft Technology – AVweb

    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

A colossal star erupts: Examining one of the largest stars in the Milky Way as it fades from view

January 8, 2024
in Science
A colossal star erupts: Examining one of the largest stars in the Milky Way as it fades from view
Share on FacebookShare on Twitter

A colossal star erupts: examining one of the largest stars in the Milky Way as it fades from view

CHARA Array false-color images of RW Cephei from December 2022 (left) and Jul 2023 (right). The patchy appearance results from dust created by a huge ejection from the star. The star is huge but it is so far away that it appears about one million times smaller than the full moon in the sky. Credit: Georgia State University / The CHARA Array

Astronomers from Georgia State University’s CHARA Array have captured the first close-up images of a massive star known as RW Cephei that recently experienced a strange fading event. The images are providing new clues about what’s happening around the massive star approximately 16,000 light years from Earth.

Detailed images and observations along with intelligent algorithms created by the team of scientists suggest a grand eruption that launched a gas cloud from RW Cephei, blocking a large fraction of starlight from view. Experts from Georgia State’s CHARA Array presented the new findings at the 243rd meeting of the American Astronomical Society in New Orleans. The research is published in The Astronomical Journal.

Scientists were surprised last year by the fading of the enormous star, which is an example of a “cool hypergiant,” a star that has grown to huge dimensions as it approaches the end of its life. RW Cephei is so large that if it were placed at the sun’s location, its outer layers would reach beyond the orbit of Jupiter.

“We made our first CHARA observations in December 2022, just before the winter weather closure, but the results were so remarkable we decided to pursue additional observations once the star was accessible again,” said Georgia State University astronomer Narsireddy Anugu, who led an international team of scientists in a quest to make the first close-up pictures of RW Cephei to determine the source of the fading.

Old stars display light variations that are related to changes in their outer layers. The changes are usually small, so scientists were amazed when astronomers Wolfgang Vollmann and Costantino Sigismondi announced in 2022 that RW Cephei had faded dramatically over the previous few years. By December 2022, RW Cephei had faded to about one-third of its normal brightness, an unprecedented drop. Scientists wanted to figure out what was causing this great dimming.

Despite its huge size, RW Cephei is so far away that it appears as a pinpoint even using the largest of conventional telescopes. To see the star close up required the remarkable abilities of the Center for High Angular Resolution Astronomy (CHARA) Array telescopes.

The CHARA Array is a six-telescope facility located at the historic Mount Wilson Observatory in California. The telescopes are placed across the mountaintop to act together like one enormous telescope. The combination of their light beams gives the CHARA Array the ability to see details on very tiny objects in the sky, about 30 times smaller than the largest conventional telescopes, and smaller than a human on the moon as seen from Earth.

The CHARA observations showed that the star did not appear round, as expected, but to make a picture with full details required specialized computer programs created by Georgia State University Associate Professor of Astronomy Fabien Baron.

“The spacing of the CHARA telescopes induces a level of uncertainty in the exact details of the pictures, so we need intelligent algorithms to recover the whole image,” Baron said.

The final pictures show a star convulsed by motions in its outer layers that create fainter and brighter patches across its surface. Furthermore, the appearance changed significantly over the 10-month period of observations that coincided with the transition from its faintest state to a slow recovery toward its former brightness.

The final piece of the puzzle came from additional observations of RW Cephei that were made by Georgia State University graduate student Katherine Shepard at the Apache Point Observatory in New Mexico. Shepard used a special camera to record the light from RW Cephei from the visible to the infrared, and these measurements showed that the fading was much larger in the visible colors compared to the infrared. This is a tell-tale sign that the starlight was obscured by microscopic dust clouds blocking our view.

Taken together, the observations suggest that RW Cephei experienced a huge eruption that launched a vast cloud of gas. As the cloud moved away, it cooled and created swarms of dust particles that effectively blocked a large fraction of starlight. Now, as the cloud expands away, we are beginning to see the star again and its troubled surroundings.

CHARA Director Douglas Gies thinks that this may be one of several grand eruptions that have wracked RW Cephei over the last century and that such eruptions will continue to play a role in mass loss before the star’s demise.

“This one was special because the cloud was ejected in the direction of Earth, so we were in the right place to witness the full effects of the cataclysm,” Gies said.

More information:
Narsireddy Anugu et al, The Great Dimming of the Hypergiant Star RW Cephei: CHARA Array Images and Spectral Analysis, The Astronomical Journal (2023). DOI: 10.3847/1538-3881/ace59d

Citation:
A colossal star erupts: Examining one of the largest stars in the Milky Way as it fades from view (2024, January 8)
retrieved 8 January 2024
from https://phys.org/news/2024-01-colossal-star-erupts-largest-stars.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-01-colossal-star-erupts-largest-stars.html

Tags: Colossaleruptsscience
Previous Post

Study of Darwin’s finches sheds light on how one species become many

Next Post

Urbanization has led some Costa Rican water sources to exceed safety levels: Study

Revolutionary Approach to Assessing the Ecological Impact of Offshore Activities

May 31, 2025
OpenAI’s ‘smartest’ AI model was explicitly told to shut down — and it refused – Live Science

OpenAI’s ‘Smartest’ AI Model Defies Shutdown Command!

May 31, 2025
Alarmed by Trump Cuts, Scientists Are Talking Science. For 100 Hours. – The New York Times

Scientists Unite for 100 Hours of Dialogue in Response to Trump’s Budget Cuts

May 31, 2025
The big ‘Cheese’: Apple TV+ series delivers a surrealist family comedy – Albuquerque Journal

The big ‘Cheese’: Apple TV+ series delivers a surrealist family comedy – Albuquerque Journal

May 31, 2025
International Research Team Builds World’s Most Efficient Organic Solar Cell – SciTechDaily

Revolutionary Breakthrough: Scientists Create the Most Efficient Organic Solar Cell Yet!

May 31, 2025
JPMorgan’s Dimon discusses dangers from ‘tectonic shifts’ in geopolitics, the global economy (JPM:NYSE) – Seeking Alpha

Dimon Warns of Geopolitical ‘Tectonic Shifts’ Impacting the Global Economy

May 31, 2025
Khruangbin takes Boise on a hypnotic journey – Idaho Press

Khruangbin Transports Boise into a Mesmerizing Musical Odyssey

May 31, 2025
VSee Health, Inc. Receives Nasdaq Notice on Delayed Form 10-Q Filing – Business Wire

VSee Health Faces Nasdaq Notice Over Delayed 10-Q Filing: What It Means for the Future

May 31, 2025
A 30 Year Dungeons and Dragons Game Gets Upended By Politics – StoryCorps

How Politics Turned a 30-Year Dungeons and Dragons Campaign Upside Down

May 31, 2025
Stop the Machines: The Rise of Anti-Technology Extremism – International Centre for Counter-Terrorism – ICCT

Unplugged: The Surge of Anti-Technology Extremism

May 31, 2025

Categories

Archives

May 2025
MTWTFSS
 1234
567891011
12131415161718
19202122232425
262728293031 
« Apr    
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 (653)
  • Economy (667)
  • Entertainment (21,573)
  • General (15,251)
  • Health (9,709)
  • Lifestyle (669)
  • News (22,149)
  • People (669)
  • Politics (675)
  • Science (15,889)
  • Sports (21,171)
  • Technology (15,654)
  • World (655)

Recent News

Revolutionary Approach to Assessing the Ecological Impact of Offshore Activities

May 31, 2025
OpenAI’s ‘smartest’ AI model was explicitly told to shut down — and it refused – Live Science

OpenAI’s ‘Smartest’ AI Model Defies Shutdown Command!

May 31, 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