Tag

Shock Waves

All articles tagged with #shock waves

science1 year ago•3 min saved

Galactic Collision Unleashes Powerful Shockwaves Across the Cosmos

The WEAVE spectrograph on the William Herschel Telescope has provided new insights into the dual nature of shock waves in Stephan's Quintet, a group of five galaxies. Led by Dr. Marina Arnaudova, the study reveals that the shock, caused by a high-speed collision of galaxy NGC 7318b, behaves differently in cold and hot gas regions. In cold gas, the shock travels at hypersonic speeds, ionizing the gas, while in hot gas, it weakens and compresses, emitting radio waves. This research highlights WEAVE's potential to enhance our understanding of galactic interactions.

via Phys.org|

#astronomy #galaxies #science

science1 year ago•10 min saved

Unprecedented Detail Captured in 2 Million mph Galaxy Collision

A galaxy traveling at 2 million mph has collided with Stephan's Quintet, a group of five galaxies, creating a powerful shock wave observed in unprecedented detail by the WEAVE telescope in Spain. This event provides insights into the dynamics of galaxy interactions and the formation of the universe. The WEAVE spectrograph, along with other instruments, has revealed the dual nature of the shock front, offering new perspectives on galactic evolution.

via The Royal Astronomical Society|

#astronomy #galaxy-collision #science

science-and-astronomy2 years ago•2 min saved

"Reconstructing the Violent Clash: Monster Black Hole vs. Doomed Star"

Scientists have used a sophisticated simulation to reconstruct the entire process of a star being shredded by a supermassive black hole, revealing a previously unknown type of shock wave and the intense flare it produces. This simulation could help astronomers understand the properties of black holes and test the limits of general relativity. The findings were published in the journal Nature, and the researchers believe that real-world observations of these events could further explore the mechanics of these powerful shock waves.

via Space.com|

#astronomy #black-holes #science-and-astronomy

science-and-technology2 years ago•7 min saved

Diamond Defects: Faster Than Sound

Researchers have settled a 60-year debate by discovering that tiny linear defects, known as dislocations, can propagate through a material faster than sound waves. These dislocations give metals their strength and workability but can also lead to catastrophic failures. By using X-ray radiography, scientists were able to measure the speed of dislocations propagating through diamond, providing insights into the damage they can cause in extreme conditions. The findings challenge previous assumptions about the fastest possible materials failure and have implications for understanding earthquake ruptures, structural failures, and precision manufacturing.

via SciTechDaily|

#diamond #dislocations #materials-science

astronomy2 years ago•2 min saved

Cosmic Power Unleashed: Exploring Energy Flow in Massive Shock Waves

Researchers have estimated the size and merging velocity of a shock wave in a merging galaxy cluster, revealing an energy release of 2.3 × 10^38 W. By analyzing the temperature distribution of the high-temperature gas, the team calculated the amount of kinetic energy being converted into heat, particle acceleration, and magnetic-field amplification in the shock front. This research provides valuable insights into the understanding of galaxy clusters and their astronomical events.

via SciTechDaily|

#astronomy #celestial-objects #energy-release