researchers at the University of Göttingen found two Super-earths orbiting a nearby star. On the planet there could be rocky worlds and living could be possible.
researchers at the University of Göttingen two Super earth , which could give a middle star orbiting the Super earth it rock worlds, they could even potentially life house in the future, researchers will observe the star-planet System around Gliese 887 exactly
The red dwarf star Gliese 887 is made of two so-called Super earth orbits. The researcher has found the Team, under the direction of the University of Göttingen out. The researchers have to wait to own information to the “Harps”-Spectrograph of the European southern Observatory (ESO) in Chile used to measure the “Doppler Wobble”technique, tiny movements of the star.
researchers from Göttingen, two Super-earths found around the star Gliese 887
These movements of the star caused by the gravitational force of the orbiting end planet and indicated in the case of Gliese 887 to two Super The earth , which encircle the star very fast – faster even than the Planet mercury and our sun.
Super-earth:
Planet, and about five to ten times the mass of Earth has
Mega-earth:
a Planet that is at least ten times the mass of Earth has
earth-like Planet:
Planet with a solid surface, the to a large extent, from the Rock
Although the two of planet Gliese 887 come closer than the earth of solar , in the habitable Zone of a star . The is much darker and only about half as large as our sun – which is the habitable Zone , in the liquid water is on a planet possible, closer to the star . On the two planet there could even be rocky worlds, such as the University of Göttingen tells. In the journal “Science”, the researchers report on their discovery, the two Super earth .
researchers from Göttingen with new insights to the star known as Gliese 887
There you will also present your discoveries to the star known as Gliese 887 for yourself: He has, in contrast to our solar very few of the star patch is so obviously less active than our star . This could mean that the planet , Gliese 887 orbit, its atmosphere, retain, or a denser atmosphere than the earth – and possibly even lives could accommodate. The star known as Gliese 887 would be as active as our sun, would be likely to sweep in a strong stellar wind and the atmosphere of the newly discovered planet away.
to recognize The second new insight on Gliese 887 has to do with the brightness of the star: The is the new findings suggest that almost constant – what is it, the future James-Webb-space-telescope the Nasa should allow, in the atmospheres of the Super-earth-system .
star known as Gliese 887: search for life beyond the solar system
The newly discovered the star-planet System will also be observed in the future by researchers exactly. Why this is so, explains the main author of the study, Sandra Jeffers of the University of Göttingen: “This planet will provide the best opportunities for more detailed studies, including the search for life outside our solar system.”
More than 4000 exoplanets have been discovered since 1992 – space telescopes help
Since the first discovery of a exoplanets – a planet outside our solar system – in 1992, researchers have tracked more than 4000 exoplanets in the universe. Especially space telescopes, such as “TESS”* and “Spitzer”, gave the researchers data.
Recently, a Team from the Max Planck Institute has discovered in Göttingen, a “second earth”. Researchers from the USA have discovered in the data of “TESS” and “Spitzer” just recently, a young planet circling its young star within 8.5 days. The Nasa space telescope “TESS” is specifically designed for the search of Exo-planets sent into space. The Nasa space telescope “Spitzer” was taken in January 2020, after 17 years in the service out of operation. Still be made in the data of the telescope continue to be discoveries. (By Tanja Banner, with Material from afp)
*fr.de part of the nationwide Ippen-Digital-editor.
