HomeScience & TechBreakthrough Discovery: Largest Black-Hole Merger Challenges Accepted Theories and Unveils Vibrations

Breakthrough Discovery: Largest Black-Hole Merger Challenges Accepted Theories and Unveils Vibrations

In a groundbreaking development in the field of astrophysics, researchers have uncovered evidence of vibrations from the largest black-hole merger ever detected. Contrary to some established theories, the study reveals that the merger may have produced a black hole approximately 150 times the mass of the Sun. This finding not only defies existing beliefs but also provides a unique opportunity to rigorously test Albert Einstein’s theory of general relativity.

The study, led by physicists including Badri Krishnan, represents a significant leap in our understanding of black-hole mergers and their aftermath. The researchers, affiliated with institutions such as the University of California at Santa Barbara and Radboud University in the Netherlands, detected the long-sought vibrations emitted by the resulting black hole as it settled into a spherical shape.

The massive black-hole merger, named GW190521 after its discovery on May 21, 2019, presented a distinctive feature that set it apart from other events. Its merging frequency was so low that it entered the sensitivity range of gravitational wave observatories, such as the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo observatory, only during its final two orbits.

Traditionally, the study of black-hole mergers involves analyzing the frequency of gravitational waves emitted during the spiraling orbits leading up to the merger. However, the researchers delved into uncharted territory by examining the vibrations occurring immediately after the merger.

When two black holes merge, the resulting black hole initially adopts a lopsided shape. However, black holes are stable only when they assume a spherical or spheroidal form, especially if they are rapidly spinning. Within milliseconds of the merger, the black hole stabilizes into its lowest-energy, symmetrical shape.

The groundbreaking aspect of this study lies in the detection of these post-merger vibrations, known as ‘ringdown.’ Much like a bell produces specific frequencies based on its shape, the stabilizing black hole emits gravitational waves with frequencies determined by its mass and spin.

Reanalyzing data from the GW190521 event, the researchers identified two distinct ringdown frequencies. These frequencies point to a resulting black hole with a mass of approximately 250 times that of the Sun, challenging the initial analysis by the LIGO-Virgo collaboration.

This discovery not only expands our knowledge of black-hole mergers but also provides a new avenue for testing the principles of general relativity. As the scientific community continues to explore the cosmos, this breakthrough marks a crucial step towards unraveling the mysteries of the universe.

Reference: https://www.nature.com/articles/d41586-023-03813-w

Read Now:Cyclone ‘Michaung’ Approaches Indian Coast Bay of Bengal at a speed of 9 kmph: IMD Issues Warning

[responsivevoice_button buttontext="Listen This Post" voice="Hindi Female"]

LEAVE A REPLY

Please enter your comment!
Please enter your name here

RELATED ARTICLES

Trending News

China Announces Territorial Sea Baseline in Beibu Gulf, Advancing Boundary Clarification

China has taken a significant step in clarifying its maritime boundaries by announcing the baseline of the northern part...

Understanding Lightning Strikes: How Data Is Improving Safety Measures

On a warm, humid day, the distant sight of tall clouds resembling cauliflower signals the approach of a thunderstorm....

Study Reveals Cannabis Strains High in CBD Offer Relief from Anxiety

Cannabis has long been a subject of fascination due to its paradoxical effects – some users find solace and...

Tesla Power India Introduces ReStore: India’s Premier Refurbished Battery Brand

Gurgaon: Tesla Power India is proud to unveil ReStore, India's leading refurbished battery brand, championing self-reliance, skill development, and...