Dead Star Empty Detected in Milky Way Galaxy’s Interstellar Gas, Like What? page all

KOMPAS.com – The dead will leave the void, as is the case in the case of massive stars.

Recent analysis of thin gas drifting between stars in Milkyway Galaxyrevealing a trail of bubbles expanding into space as a massive star becomes supernova at the end of his life.

According to scientists, these traces record the history of the death of stars and the rotation of the Milky Way galaxy.

The space between the stars is not completely empty. In the crevices of space, sometimes drifting gas comes together in more diffuse clouds, composed mostly of hydrogen atoms.

Also read: Secrets of the Universe: How Do Stars Die?

When the clouds are dense enough, stars are born, while when the stars die, they sprinkle the clouds with the elements forged in their core.

However, it is still not fully understood how clouds form, organize, and recycle themselves throughout the galaxy.

To that end, a team of astronomers led by Juan Diego Soler of the Italian National Institute of Astrophysics (INAF) began studying the structure found in the neutral hydrogen atom that permeates Earth’s galaxy.

In his research, he used data collected by the HI4PI project, a survey that studies the sky at radio wavelengths to obtain a map of neutral hydrogen atoms across the Milky Way.

The survey is by far the most detailed of its kind, mapping not only the distribution of hydrogen, but also its velocity. Combining it with the rotational model of the Milky Way can measure distances to structures in the gas.

Using this data, the team used an algorithm commonly used to analyze satellite photos, finding subtle structures in hydrogen that are impossible to identify with the eye.

It consists of a vast network of fine threads of gas known as filaments, near a disk that is mostly perpendicular to the plane of the Milky Way galaxy. At a distance of about 33,000 light years, the filaments are mostly parallel to the galactic plane.

Also read: How Long Can a Star Live? Experts Give Answers

The research team interpreted the network as a feedback trail of supernovas in the Milky Way’s gas.

“Possibly, the remnants of the double supernova explosion swept through the gas and formed a bursting bubble when it reached the characteristic scale of the galactic plane,” said astronomer Ralf Klessen of the University of Heidelberg in Germany.

The fact that most of the horizontal structure is visible outside the Milky Way, there is a strong decrease in the number of massive stars that creates fewer supernovae.

This indicates the input of energy and momentum from the gas-forming stars in the galaxy.

According to the researchers, this could offer new investigations to understand the dynamic processes that formed the Milky Way’s disk and study ancient fossils to reconstruct the history of Earth’s galaxy.

Research published in Astronomy & Astrophysics, also offers a new context for interpreting other phenomena that may be found around filaments.

“The interstellar medium, which is the matter and radiation present in the space between stars, is governed by star formation and supernovae, with the latter being a massive explosion during the last stages of the star’s evolution, which is more than ten times larger than the sun,” said astronomers from the Center. Saclay Nuclear Research in France Patrick Hennebelle.

“Supernova associations are very efficient at maintaining turbulence and lifting gas in a layered disk. The discovery of the filamentous structure in the hydrogen atom is an important step in understanding the processes responsible for galaxy-scale star formation.”

Also read: Why Stars Blink?

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