[ad_1]
Image source, OGLE / UNIVERSITY OF WARSAW
Warsaw Telescope under the Milky Way
Analysis of data collected by the retired Kepler space telescope suggests that the Earth-like planet on which humans could settle and live as a second home in the future. There should be at least 300 million planets in the Milky Way galaxy.
Scientists from various research institutes in the United States. The estimate said that planets with potential for colonization of these There are at least three properties that support the existence of living beings. These include the presence of a hard rock similar to the size of Earth, orbiting a central star that is neither too hot nor erupting. As well as at a reasonable distance from the star. At a temperature that allows water to maintain a liquid state on the surface of the star.
Dr. Steve Bryson, an astronomer at NASA’s Ames Research Center (ARC), who led the research, said: The data for the search for exoplanets during the first four years of the Kepler mission between May 2009 and May was analyzed. 2013. And it has used the latest computer technology to help the brain to detect more planets outside the solar system from such databases.
Previously, the search for planets outside the solar system Use a method for the telescope to detect the stellar passage of smaller space bodies. Also known as a transit phenomenon, which causes starlight to dim for a time.
But in the past, small planets with many Earth-like environments may escape the eyes of scientists Because it darkens the starlight a little It’s not enough for a computer program to detect and identify planets outside the solar system.
Image source, THAT
A simulation of the Milky Way when it collides with another galaxy in the past.
The research team then revised it by expanding the scope of the computer program’s starlight analysis. The way the planet is estimated to be within the proper distance from the star has also changed. Or is it in the Goldilocks Zone that is conducive to living things? The radius of the planet and the number of light particles (photons) that affect one unit of area per second is the base.
The research team also narrowed the search further. It is aimed at exoplanet planets, which have a mass between 0.5 and 1.5 times that of Earth, and a star with a special temperature between 4,530 and 6,025 degrees Celsius.
The results obtained from the calculation according to the above criteria indicate that there are about 600 million stars like this in the Milky Way, half of which should have satellites similar to the size of the Earth. It orbits at the proper distance from the Goldilox zone. This means that there may be at least 300 million inhabited planets within our galaxy.
Now, the details of the previous analysis. It is available online at the online library arXiv.org and will soon be published in The Astronomical Journal.
