All articles tagged with #hot gas
Originally Published 5 days ago — by Live Science
Astronomers using ALMA have discovered a galaxy cluster from just 1.4 billion years after the Big Bang that is unexpectedly hot, challenging current models of galaxy formation and suggesting that such structures may form more rapidly than previously thought.
Originally Published 6 days ago — by ScienceAlert
Scientists discovered a galaxy cluster called SPT2349-56, just 1.4 billion years after the Big Bang, with gas temperatures far exceeding predictions, likely due to energy from supermassive black holes, challenging current models of galaxy cluster evolution.
Originally Published 1 year ago — by Phys.org
Scientists have identified the source of the super-hot gas surrounding the Milky Way, attributing it to supernovae explosions in the galaxy's stellar disk. These explosions heat the gas to millions of degrees Kelvin, creating a veil of fiery gas enriched with α-elements. This gas emits X-rays and absorbs light from distant quasars, providing clues about its composition and origin. The research, conducted by the Raman Research Institute and collaborators, offers insights into the dynamics of the Milky Way's circumgalactic medium.
Originally Published 2 years ago — by Space.com
A large cluster of galaxies is consuming a smaller galactic grouping, causing it to emit a record-breaking tail of hot gas. The tail is 1.5 million light-years-long, making it the largest tendril of gas ever seen emerging from a galactic group. The absorption of NGC 4839 by the Coma cluster could help astronomers understand the processes galaxy groups undergo as they merge. The brightness of the tail offers astronomers a unique opportunity to study the physics at play in such events.
Originally Published 2 years ago — by Phys.org
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected a large reservoir of hot gas in the still-forming galaxy cluster around the Spiderweb galaxy, the most distant detection of such hot gas yet. The discovery indicates that the system is on its way to becoming a proper, long-lasting galaxy cluster rather than dispersing. The team detected the intracluster medium (ICM) of the Spiderweb protocluster through the thermal Sunyaev-Zeldovich (SZ) effect, which happens when light from the cosmic microwave background passes through the ICM. The Spiderweb protocluster contains a vast reservoir of hot gas at a temperature of a few tens of millions of degrees Celsius, outweighing the cold gas previously detected by thousands of times.