* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, August 24, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Quotes of the Week: Peacemaker, Project Runway, Countdown and More – yahoo.com

    This Week’s Most Memorable Quotes from Peacemaker, Project Runway, Countdown, and More!

    Drake Appears in Teaser for Bobbi Althoff’s New Podcast ‘Not This Again’ – yahoo.com

    Drake Drops a Surprise Cameo in Bobbi Althoff’s Thrilling New Podcast Teaser ‘Not This Again

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    How to watch ‘F1: The Movie’ on Prime Video – About Amazon

    Experience the Thrill: How to Stream ‘F1: The Movie’ on Prime Video

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    What Are Our Predictions for Taylor Swift’s ‘Life of a Showgirl’ Based on What She’s Told Us So Far? – yahoo.com

    Uncover the Hidden Surprises in Taylor Swift’s ‘Life of a Showgirl’ – Can You Decode Her Clues?

  • 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
    Figure Technology Solutions, Inc. Files Registration Statement for Proposed Initial Public Offering – Business Wire

    Figure Technology Solutions, Inc. Unveils Exciting Plans for Its Upcoming Initial Public Offering

    UNLV Responds to Workforce Need with Microcredential in Nuclear Technology – University of Nevada, Las Vegas | UNLV

    UNLV Unveils Cutting-Edge Microcredential Program to Fuel Growth in Nuclear Technology

    Why Technology Will Never Take Over Completely – Patheos

    Why Technology Will Never Completely Control Our Lives

    Alcorn State awarded grant to boost STEM with VR technology – WJTV

    Alcorn State Secures Grant to Transform STEM Education Through Cutting-Edge VR Technology

    Hyundai: The Only Way To Beat China Is To Embrace Technology – InsideEVs

    Hyundai’s Bold Strategy to Outpace China with Cutting-Edge Technology

    Teaching older adults how to use technology – WWNY

    Empowering Older Adults to Master Technology with Confidence

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Quotes of the Week: Peacemaker, Project Runway, Countdown and More – yahoo.com

    This Week’s Most Memorable Quotes from Peacemaker, Project Runway, Countdown, and More!

    Drake Appears in Teaser for Bobbi Althoff’s New Podcast ‘Not This Again’ – yahoo.com

    Drake Drops a Surprise Cameo in Bobbi Althoff’s Thrilling New Podcast Teaser ‘Not This Again

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    From polka to Poison, Corn Palace adjusts entertainment offerings with the times – Mitchell Republic

    How to watch ‘F1: The Movie’ on Prime Video – About Amazon

    Experience the Thrill: How to Stream ‘F1: The Movie’ on Prime Video

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    FOX One is now available on Prime Video: Here’s everything to know – About Amazon

    What Are Our Predictions for Taylor Swift’s ‘Life of a Showgirl’ Based on What She’s Told Us So Far? – yahoo.com

    Uncover the Hidden Surprises in Taylor Swift’s ‘Life of a Showgirl’ – Can You Decode Her Clues?

  • 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
    Figure Technology Solutions, Inc. Files Registration Statement for Proposed Initial Public Offering – Business Wire

    Figure Technology Solutions, Inc. Unveils Exciting Plans for Its Upcoming Initial Public Offering

    UNLV Responds to Workforce Need with Microcredential in Nuclear Technology – University of Nevada, Las Vegas | UNLV

    UNLV Unveils Cutting-Edge Microcredential Program to Fuel Growth in Nuclear Technology

    Why Technology Will Never Take Over Completely – Patheos

    Why Technology Will Never Completely Control Our Lives

    Alcorn State awarded grant to boost STEM with VR technology – WJTV

    Alcorn State Secures Grant to Transform STEM Education Through Cutting-Edge VR Technology

    Hyundai: The Only Way To Beat China Is To Embrace Technology – InsideEVs

    Hyundai’s Bold Strategy to Outpace China with Cutting-Edge Technology

    Teaching older adults how to use technology – WWNY

    Empowering Older Adults to Master Technology with Confidence

    Trending Tags

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

Massive, magnetic stars beyond the Milky Way detected for the 1st time

June 3, 2024
in General
Massive, magnetic stars beyond the Milky Way detected for the 1st time
Share on FacebookShare on Twitter

A blue scene of space with lots of stars, many of which sparkly quite brightly in the center. Streams of gas and other material can be seen as well.

Densely packed stars and glowing gas in the massive star-forming region NGC346 in the Small Magellanic Cloud
(Image credit: NASA, ESA, A. James (STScI))

For the first time, astronomers have detected the magnetic fields of massive, blazingly hot stars outside our galaxy. They’re stars that actually live in our galactic companions, the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC). 

Discovering stellar magnetism in these satellite galaxies of the Milky Way, both of which have a large population of young stars, offers scientists a unique chance to study actively forming stars. It could also answer the question of how much mass a star can pile on before it loses stability.

Magnetism is a vital factor in the evolution of massive stars, and can also determine how they will end their lives. Stars over eight times as massive as the sun leave behind neutron stars or black holes after dying violent supernova deaths that are influenced by each respective star’s magnetic fields. Magnetism is also thought to be a key player in the launch of X-ray flashes and gamma-ray bursts that come from dying stars.

Related: Are stars vanishing into their own black holes? A bizarre binary system says ‘yes’

Located 200,000 and 158,000 light-years from Earth, respectively, the infant stars of the SMC and LMC are believed to lack “metals,” a term astronomers use for elements heavier than hydrogen and helium. This makes these relatively close stars a good “proxy” for the first stars to exist in the 13.8 billion-year-old cosmos, which are too distant to study in great detail, even with the instruments we have available.

The first generation of stars formed when hydrogen and helium were vastly more abundant than heavier elements across the universe, meaning these initial stars were also “metal-poor.” Studying these relatively close SMC and LMC stars can thus help us understand the evolution of the universe’s first stars.

“Studies of magnetic fields in massive stars in galaxies with young stellar populations provide crucial information on the role of magnetic fields in star formation in the early universe with star-forming gas not polluted by metals,” research leader Swetlana Hubrig, from the Leibniz Institute for Astrophysics Potsdam (AIP), said in a statement.

Breaking space news, the latest updates on rocket launches, skywatching events and more!

Measuring stellar magnetism in our cosmic neighborhood is tricky

To conduct this magnetic study for stars in the SMC and LMC, the team turned to what’s known as the low-resolution spectropolarimeter Focal Reducer/low dispersion Spectrograph 2 (FORS2). It’s an instrument mounted on one of the four 8-meter telescopes that comprise the Very Large Telescope (VLT), which is located in the Atacama Desert of northern Chile.

Astronomers measure stellar magnetic fields by using light polarization, the uniformity of the direction in which waves of light are orientated. The key is that a star’s light polarization is determined by the orientation of magnetic fields that impact it.

This technique, called “spectropolarimetry,” uses circularly polarized starlight, two in-phase light waves in two planes orientated at 90 degrees to each other, which, if viewed while approaching an observer, would make it appear to be rotating. 

A diagram on top showing linear polarization, and one on the bottom showing circular polarization. The one on the bottom resembles a spiral going along an X-axis.

A diagram showing linear polarization and circular polarization. (Image credit: Robert Lea (created with Canva))

To detect the smallest changes in starlight, spectropolarimetry depends on a high level of accuracy in polarization measurements, which requires high-quality data. 

“The method is extremely hungry for photons [the particles of light],” Leibniz-Institut für Astrophysik Potsdam (AIP) scientist and team member Silva Järvinen said in the statement. “This is a special challenge because even the brightest massive stars, which have more than eight solar masses, are relatively light-poor when observed in our neighboring galaxies, the LMC and SMC.” 

That means conventional high-resolution spectropolarimeters and smaller telescopes aren’t capable of harvesting the kind of data needed for spectropolarimetry investigations of stars outside the Milky Way, even those in our cosmic neighborhood.

There are also other challenges associated with performing spectropolarimetry beyond the Milky Way. The magnetic field measured for circular polarization is called a “longitudinal magnetic field,” and it points in the direction of the observer. Almost like light from a lighthouse, the beam is easiest to see when pointed directly at an observer, and the longitudinal magnetic field is the easiest component of a magnetic field to see.

This photo shows the remnants of a stellar explosion (left) and new stars emitting intense radiation that makes clouds of gas glow around them (right) in the Large Magellanic Cloud. Image released Nov. 27, 2013.

Image showing the remnants of a stellar explosion (left) and newly born stars emitting intense radiation that makes clouds of gas glow around them (right) in the Large Magellanic Cloud. (Image credit: ESO)

Another problem is that the structure of magnetic fields in massive stars is such that they are aligned with the rotational axis of the star. That means the strength of the longitudinal magnetic field can be “zero” for an observer looking directly at the magnetic equator of the rotating star.

Detecting a polarization signal also depends on the number of features like the absorption and emission lines of elements in the spectrum of light coming from a star. The more spectral features that can be determined, the better the spectropolarimetry outcome. Likewise, the longer an instrument can observe a star and record its polarimetric spectrum, the better the technique’s results.

Whereas previous efforts to measure stellar magnetic fields beyond the Milky Way have failed, thanks to FORS2, the team was able to conduct spectropolarimetry for five massive stars in the LMC and SMC.

The investigation was successful for two single stars that have spectra resembling massive stars in the Milky Way. It also provided a measurement of magnetic fields for an interacting pair of massive stars in a binary system designated Cl NGC 346 SSN7, which is located in a vast star-birthing region of the SMC called NGC346. The stars were found to have magnetic fields so strong they are only typically seen on the sun in highly magnetized dark regions called sunspots.

The team thinks these new findings suggest that low metallicity has little impact on the occurrence and strength of magnetic fields in massive stars. It also may be the case that star formation and evolution occur in similar ways in the Milky Way, in the LMC and in the SMC. 

The researchers concede that the sample size of stars used to reach these conclusions is very small, and that means that further investigation of massive stars in the SMC and LMC is needed to confirm the study’s conclusions. 

The research was published May 27 in the journal Astronomy & Astrophysics.

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: [email protected].

Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Space.com – https://www.space.com/magnetic-stars-milky-way-magellanic-clouds

Previous Post

Manage all your streaming in one place with this $30 service

Next Post

Watch Rocket Lab launch shoebox-sized NASA climate satellite tonight

Is a relief rally coming for Equity LifeStyle Properties Inc. holders – July 2025 Retail & Weekly High Return Opportunities – Newser

Is a relief rally coming for Equity LifeStyle Properties Inc. holders – July 2025 Retail & Weekly High Return Opportunities – Newser

August 24, 2025
Figure Technology Solutions, Inc. Files Registration Statement for Proposed Initial Public Offering – Business Wire

Figure Technology Solutions, Inc. Unveils Exciting Plans for Its Upcoming Initial Public Offering

August 24, 2025
‘Holy grail’ MJ-Kobe card sells for record $12.9M – ESPN

Holy Grail’ MJ-Kobe Card Smashes Records with $12.9 Million Sale

August 24, 2025
Julia Schell scores six tries as Canada thrash Fiji in Women’s Rugby World Cup – The Guardian

Julia Schell scores six tries as Canada thrash Fiji in Women’s Rugby World Cup – The Guardian

August 24, 2025
Why Tipping Feels Out of Control in Today’s Economy – MSN

Why Tipping Feels Out of Control in Today’s Economy – MSN

August 24, 2025
Quotes of the Week: Peacemaker, Project Runway, Countdown and More – yahoo.com

This Week’s Most Memorable Quotes from Peacemaker, Project Runway, Countdown, and More!

August 24, 2025
New report demonstrates that corporal punishment harms children’s health – World Health Organization (WHO)

Shocking New Findings Expose the Serious Harm Corporal Punishment Inflicts on Children’s Health

August 24, 2025
Privately influential but publicly absent, Melania Trump is picking and choosing her moments this term – CNN

Melania Trump: Quietly Influential and Selectively Stepping Into the Spotlight This Term

August 24, 2025
Third annual event highlights cultural, ecological importance of Tawas Lake – Iosco County News Herald

Explore the Vibrant Culture and Stunning Ecology of Tawas Lake at This Year’s Exciting Third Annual Event!

August 24, 2025
UNT Ph.D. Grad Gives $2M to Launch Data Science Innovation Lab – Dallas Innovates

UNT Ph.D. Grad Gives $2M to Launch Data Science Innovation Lab – Dallas Innovates

August 24, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
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 (787)
  • Economy (808)
  • Entertainment (21,687)
  • General (16,649)
  • Health (9,848)
  • Lifestyle (821)
  • News (22,149)
  • People (809)
  • Politics (817)
  • Science (16,019)
  • Sports (21,307)
  • Technology (15,789)
  • World (789)

Recent News

Is a relief rally coming for Equity LifeStyle Properties Inc. holders – July 2025 Retail & Weekly High Return Opportunities – Newser

Is a relief rally coming for Equity LifeStyle Properties Inc. holders – July 2025 Retail & Weekly High Return Opportunities – Newser

August 24, 2025
Figure Technology Solutions, Inc. Files Registration Statement for Proposed Initial Public Offering – Business Wire

Figure Technology Solutions, Inc. Unveils Exciting Plans for Its Upcoming Initial Public Offering

August 24, 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