Astronomers observe gas re-accretion using ALMA data

Scientists have leverage data collected using a large atacama millimeter / submillimeter array (Alma) in a new study. The information collected shows that the previously moved gas can increase back to the galaxy. The process can slow the dying galaxy process from stripping RAM pressure and can create a unique structure more resistant to the effect.

Researcher William Cramer said that many previous work about stripping galaxy RAM pressure focused on the material stripped of the galaxy. In this new study, researchers have found that some gas moves such as boomerang, removed but swirling and falling back to the source. This study is based on data collected by Hubble and Alma at a very high resolution that allows researchers to learn the phenomenon.

Stripping RAM pressure is a process that moves the gas in the galaxy, leaving it without the material needed to form new stars. When galaxies move through their galaxy cluster, hot gas known as intra-clusters’ media acts like the wind that drives gas from the Galaxy traveling. Over time, the star forming galaxy is long active and dead.

Stripping RAM pressure can accelerate the normal life cycle of galaxies and change the amount of molecular gas in it. That means the interesting process for scientists who study life, maturation, and galaxy death. Previously, in the simulation, it was seen that not all gas driven by stripping RAM pressure escaped from the galaxy. Gas must reach the speed of escaping to escape the galaxy at all without falling back.

Returns observed were from the cloud of gas which was pushed out of the galaxy by stripping RAM pressure and did not reach the speed of runaway. Researcher Jeff Kenney said when trying to predict how quickly the galaxy would stop forming a star and turned into a red or dead galaxy, you must understand how effective RAM pressure in gas stripping. Having evidence of this trait means a more accurate timeline for the galaxy life cycle.

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