* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, August 24, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    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?

    Bama Dining Serving Up New Food, Entertainment – UA News Center

    Bama Dining Launches Thrilling New Food and Entertainment Experiences

  • 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
    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

    Denver man receives pacemaker using new technology – CBS News

    Denver Man’s Life Transformed by Revolutionary Pacemaker Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    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?

    Bama Dining Serving Up New Food, Entertainment – UA News Center

    Bama Dining Launches Thrilling New Food and Entertainment Experiences

  • 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
    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

    Denver man receives pacemaker using new technology – CBS News

    Denver Man’s Life Transformed by Revolutionary Pacemaker Technology

    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

The Universe’s Hidden Backbone: ALMA Unveils Dark Matter’s Fine-Scale Fingerprint

November 13, 2023
in Science
The Universe’s Hidden Backbone: ALMA Unveils Dark Matter’s Fine-Scale Fingerprint
Share on FacebookShare on Twitter

Dark Matter Cosmology Art Concept

Researchers used ALMA to detect dark matter distribution on scales smaller than massive galaxies. This landmark observation of dark matter fluctuations at the 30,000 light-year scale supports the cold dark matter model and offers important insights into the structure of the Universe.

Groundbreaking observations reveal dark matter fluctuations below the scale of galaxies, affirming cold dark matter theories and providing new insights into the Universe’s composition.

A research team led by Professor Kaiki Taro Inoue at Kindai University (Osaka, Japan) has discovered fluctuations in dark matter distribution in the Universe on scales smaller than massive galaxies using the world’s most powerful radio interferometer, the Atacama Large Millimeter/submillimeter Array (ALMA), located in the Republic of Chile.

This is the first time that the spatial fluctuations of dark matter in the far Universe has been detected on a scale of 30,000 light-years. This result shows that cold dark matter[1] is favored even on scales smaller than massive galaxies, and is an important step toward understanding the true nature of dark matter. The article will be published in The Astrophysical Journal.

Dark Matter Fluctuations Lens System MG J0414+0534

Figure 1. Detected fluctuations of dark matter. The brighter orange color indicates regions with high dark matter density and the darker orange color indicates regions with low dark matter density. The white and blue colors represent gravitationally lensed objects observed by ALMA. Credit: ALMA (ESO/NAOJ/NRAO), K.T. Inoue et al.

Key PointsObservation by one of the world’s largest radio wave interferometers ALMA, which is an international project.The first detection of fluctuations of dark matter in the Universe on scales less than 30,000 light-years.An important step toward elucidating the true nature of dark matter.ALMA Detects Small-Scale Fluctuations in Dark Matter Distribution

Dark matter, the invisible material that makes up a large fraction of the mass of the Universe, is thought to have played an important role in the formation of structures such as stars and galaxies.[2] Since dark matter is not uniformly distributed in space but is distributed in clumps, its gravity can slightly change the path of light (including radio waves) coming from distant light sources. Observations of this effect (gravitational lensing) have shown that dark matter is associated with relatively massive galaxies and clusters of galaxies, but how it is distributed on smaller scales has not been known.

The research team decided to use ALMA to observe an object at a distance of 11 billion light-years from the Earth. The object is a lensed quasar,[3] MG J0414+0534[4] (hereinafter referred to as “this quasar”).

This quasar appears to have a quadruple image due to the gravitational lensing effect of the foreground galaxy. However, the positions and shapes of these apparent images deviate from those calculated solely from the gravitational lensing effect of the foreground galaxy, indicating that the gravitational lensing effect of the distribution of dark matter on scales smaller than massive galaxies is at work.

Gravitational Lens System MG J0414+0534

Figure 2: A conceptual diagram of the gravitational lens system MG J0414+0534. The object at the center of the image indicates the lensing galaxy. The orange color shows dark matter in the intergalactic space and the pale yellow color indicates dark matter in the lensing galaxy. Credit: NAOJ, K. T. Inoue

It was found that there are spatial fluctuations in the density of dark matter even at the scale of about 30,000 light-years, which is far below the cosmological scale (several tens of billions of light-years). This result is consistent with the theoretical prediction of cold dark matter, which predicts that dark matter clumps reside not only within galaxies (pale yellow color in Figure 2), but also in the intergalactic space (orange in Figure 2).

The gravitational lensing effects due to the clumps of dark matter found in this study are so small that it is extremely difficult to detect them alone. However, thanks to the gravitational lensing effect caused by the foreground galaxy and the high resolution of ALMA, we were able to detect the effects for the first time. Thus, this research is an important step to verify the theory of dark matter and to elucidate its true nature.

This research was presented in a paper “ALMA Measurement of 10 kpc-scale Lensing Power Spectra toward the Lensed Quasar MG J0414+0534” by K.T. Inoue et al. in the Astrophysical Journal.

NotesCold dark matter
As the Universe expands, the density of matter decreases, and thus particles of dark matter (matter that is invisible to light) will no longer encounter other particles and will have independent motion that is different from the motion of ordinary matter. In this case, dark matter particles that move at a speed far less than the speed of light with respect to ordinary matter are called cold dark matter. Because of the low velocity, it does not have the ability to erase the large scale structures in the Universe.The structure formation in the Universe
In the early Universe, stars and galaxies are thought to have been formed by the gravitational growth of density fluctuations of dark matter, and the aggregation of hydrogen and helium attracted to clumps of dark matter. The distribution of dark matter on scales smaller than that of massive galaxies is still unknown.Quasar
A quasar is the central compact region of a galaxy that emits extremely bright light. The compact region and the surroundings have a large amount of dust that emits radio waves.MG J0414+0534
MG J0414+0534 is located in the direction of the constellation Taurus as seen from the Earth. The redshift (the increase in the wavelength of light divided by the original wavelength) of this object is z=2.639. The corresponding distance is assumed to be 11 billion light-years, taking into account the uncertainty in the cosmological parameters.

Reference: “ALMA Measurement of 10 kpc Scale Lensing-power Spectra toward the Lensed Quasar MG J0414+0534” by Kaiki Taro Inoue, Takeo Minezaki, Satoki Matsushita and Kouichiro Nakanishi, 7 September 2023, The Astrophysical Journal.
DOI: 10.3847/1538-4357/aceb5f

This work was supported by Grant-in-Aids for Scientific Research from the Japan Society for the Promotion of Science (Nos. 17H02868, 19K03937), the National Astronomical Observatory of Japan ALMA Joint Scientific Research Project 2018-07A, the same ALMA J A P A N Research Fund NAOJ-ALMA-256, and Taiwan MoST 103-2112-M-001-032-MY3, 106-2112-M-001-011, 107-2119-M-001-020, 107-2119-M-001-020.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/the-universes-hidden-backbone-alma-unveils-dark-matters-fine-scale-fingerprint/

Tags: Hiddenscienceuniverse's
Previous Post

Twice As Powerful: Next-Gen AI Chip Mimics Human Brain for Power Savings

Next Post

Cosmic Chameleon: Galaxy’s Stunning Transformation by Hubble Filters

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
Center to advance hunting and conservation looks to tradition, science – NBC Montana

Center Pioneers New Era in Hunting and Conservation by Merging Tradition with Science

August 24, 2025
‘Hidden gem’ – the lifestyle village beating the property slump – Stuff

‘Hidden gem’ – the lifestyle village beating the property slump – Stuff

August 24, 2025
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

August 24, 2025
Women’s football moves mountains in Pakistan – EL PAÍS English

Women’s football moves mountains in Pakistan – EL PAÍS English

August 24, 2025
Lifeguard, 82, Sets Impressive Guinness World Record After More Than 60 Years Lifeguarding – People.com

82-Year-Old Lifeguard Breaks Guinness World Record After Over 60 Years on Duty

August 24, 2025
Powell’s Rate Cut Signal Reflects Economy’s Delicate Position – Hindustan Times

Powell’s Rate Cut Signal Reflects Economy’s Delicate Position – Hindustan Times

August 24, 2025
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

August 24, 2025
Hamilton County school board rejects mental health center contract – Chattanooga Times Free Press

Hamilton County School Board Rejects Contract for New Mental Health Center

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 (807)
  • Entertainment (21,686)
  • General (16,641)
  • Health (9,847)
  • Lifestyle (820)
  • News (22,149)
  • People (809)
  • Politics (816)
  • Science (16,019)
  • Sports (21,306)
  • Technology (15,788)
  • World (788)

Recent News

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
  • 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