Gadget

The Hubble Telescope helps find six “dead” galaxies from the early universe

You have a big galaxy Early universe A lot of “fuel” would have been left for the new star, but recent discoveries suggest that it was not always the case.Astronomers using the Hubble Space Telescope and Atacama Large Millimeter / Submillimeter Wave Array (ALMA) I found Six early galaxies (about 3 billion years later) big Bang) Abnormally “dead” —that is, lacking the cold hydrogen needed for star formation. According to Principal Investigator Kate Whitaker, the disappearance of hydrogen is a mystery, as this was the peak period of star birth.

The team discovered the galaxy thanks to a strong gravitational lens. We used clusters of galaxies to bend and magnify the light from the early universe. Hubble identified where the stars were formed in the past, and ALMA detected cold dust (a substitute for hydrogen) to indicate where the stars were formed in the presence of the required components.

The galaxy is believed to have expanded since then, but not through the creation of stars. Rather, they grew through mergers with other small galaxies and gases. Subsequent formations would have been limited at best.

The results of this survey are proof of Hubble’s and ALMA’s combined strength, not to mention Hubble’s ability. Decades since its release.. At the same time, it emphasizes the limits of both technology and human understanding by raising many questions. Whitaker said scientists don’t know why the galaxy died so quickly or what happened to shut off fuel. Was the gas heated, discharged, or consumed rapidly? Even if an answer is available, it may take some time to provide the answer.

All Engadget recommended products are selected by an editorial team independent of the parent company. Some stories include affiliate links. If you buy something through any of these links, you may earn affiliate commissions.

https://www.engadget.com/hubble-dead-early-galaxies-210407505.html?src=rss The Hubble Telescope helps find six “dead” galaxies from the early universe

Back to top button