Researchers keen to know more about the process of the evolution of universe, have come across some interesting and hitherto unknown facts after using a new method to measure radiation leaks in large, star-forming galaxies in the universe.

This study, which was co-authored by an Indian origin scientist, Sanchayeeta Borthakur, used the radiation leak measurement method to help find the ideal star-forming galaxy that contained holes in its cold gas cover.

 

Consisting of thick, dense cold gas, the cover stretches across a galaxy like a blanket. While an effective tool for helping make stars, this cover presents a challenge for astrophysicists hoping to learn how the radiation that stars produce could be used in the ionization process.

Moments after the Big Bang, the hot, newly born universe began to expand and quickly cool. Several hundred thousand years later, free proton and electron particles in the universe began to connect to each other and form neutral hydrogen atoms. The neutral gas began to collapse into the first stars and galaxies, which then began to radiate brightly.

Using observations made with the Cosmic Origin Spectrograph onboard the Hubble Space Telescope, the research team found the right galaxy to study. In the study, the researchers credit a combination of unusually strong winds, intense radiation and a massive, highly star-forming galaxy for proving the validity of the indicator.

Studying the radiation that seeps through these holes has been an ongoing conundrum for scientists for years. Scientists have been on a quest to find just the right galaxy with this character trait for decades. Borthakur said scientists know that these leaky galaxies exist, but finding one has been a problem.

Using observations made with the Cosmic Origin Spectrograph on board the Hubble Space Telescope, the research team found the right galaxy to study. In the study, the researchers credit a combination of unusually strong winds, intense radiation and a massive, highly star-forming galaxy for proving the validity of the indicator.

“This method first created by study co-author Timothy Heckman in 2001 can sort out what gas is present and also accurately measure the percentage of holes in the gas cover,” Borthakur noted.

The study is published in the journal Science.

 

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