The shining red hydrogen gas stream is shining from the spiral galaxy D100 as it moves to the center of the giant coma galaxy cluster. In the middle of the gloss you can see a new star's hustle, where there are still enough hydrogen gases to make fuel.
Credit: Hubble Image: NASA, ESA, Sun Sun (Alabama University) and W. Cramer and J. Kenney (Yale University); Subaru Image: M. Yagi (Japanese National Astronomical Observatory)
NASA's Hubble Space Telescope has captured a stunning new view of the spiral galaxy that went too close to the massive cluster of the coma galaxy and is being cleared of its gas.
The spiral galaxy, called the D100, is pulled in the direction of gravity towards the dense center of the Coma cluster, which is about 330 million light years from Earth. As the galaxy flows into a cluster, it is removed from its gas, creating a long, thin tail that stretches for about 200,000 light years – in almost two Milky Way galaxies, according to a NASA statement.
The galaxy tails consist of dust and hydrogen gas. Because the galaxy passes through an intergalactic material that encompasses a cluster, gas and dust are excluded from the galaxy. [Celestial Photos: Hubble Space Telescope’s Latest Cosmic Views]
After all, the D100 will end with the hydrogen gas that the galaxy needs to form new stars and become a dead relic according to the statement.
"This galaxy stands out as a particularly extreme example of the processes that often occur in mass clusters, where the galaxy goes from a whole spiral-full star to a red and dead galaxy," William Cramer, research director and researcher at Yale University in Connecticut, said in a statement. "Spiral hands disappear and the galaxy stays free of gas and only old stars. This phenomenon has been known for decades, but Hubble provides the best galaxy image that is taking place in the process."
Researchers estimate that D100 has lasted this process for a long time, also known as ram pressure removal over about 300 million years.
Although the D100 is one of the many galaxies in this situation, one factor distinguishes it from others that astronomers have seen and modeled: D100 tails are much smoother and more accurately defined than most of these galaxies.
"It's a surprise because it's not visible in most computer simulations. Most galaxies that are subject to this process are more chaos," said Jeffrey Kenney, co-author of the study, also at Yale University. statement, statement. "Shadow clean edges and thread structures show that magnetic fields play an important role in its creation. Computer simulations show that there are magnetic fields that do not contain magnetic fields in the tail gas.
Hubble's data revealed that the gas removal process began at the outer edges of the galaxy and is now moving towards the center. The picture also shows hot, glowing, blue youth stars, with the brightest links in the middle of the tail that still have enough hydrogen gas to make the fuel star.
However, researchers estimate that, over a few hundred million years, the D100 will completely lose its spiral structure and consist only of old red stars. The results were published on January 8 in the Astrophysical Journal.