How are planets and how do they develop? A newly discovered Planet orbiting a very young star, could provide astronomers answers.
researchers discover a planet (AU Mic b) , the relatively middle and young star The star AU Microscopii orbits fascinated astronomers a long time Now, researchers can explore the formation of planets and solar systems
In 31.9 light-years away from earth, researchers have discovered a planet , the relatively young star orbits. The Fund, the space telescopes “TESS” were* and “Spitzer”* involved, it could give the researchers an indication of how solar systems and planet arise.
The star AU Microscopii (AU Mic) intrigued astronomers for decades. For many years, researchers are already looking for planet around the star . Because he is for the research to be very interesting:
The star AU Mic is surrounded by a debris disk, which dates from the time of its creation. The star is not removed with 31.9 light-years far from earth. He is with an age of 20 to 30 million years, very young – our sun is at least 150 Times older.
space telescope “TESS”: the star AU Microscopii is of planet orbits
“AU Mic is a young, middle-dwarf star. He is surrounded by an extended debris disc, in the moving of dust, lumps were discovered,” stresses Bryson Cale, a Co-author of the study, which was published in the journal “Nature”. “There is no other known System that meets all of these important points,” said Cale in a statement of Nasa, which manages the telescope “TESS”.
I’m excited to formally announce the discovery of AU Mic b, a Neptune-sized exoplanet transiting the 22 million year old, 2nd closest pre-main sequence star to the Sun, AU Mic, published in Nature. Discovered with @NASA_IRTF iSHELL, @NASA_TESS & @NASA Spitzer. @NASA exoplanets pic.twitter.com/pmbxXp4ogy
— Peter Plavchan (@PlavchanPeter) June 24, 2020
at Least one of the dust clumps, orbiting the star AU Mic , turned out to be thanks to the Nasa space telescopes “TESS” and “sharper” than a Planet. Has obtained the name of AU Mic b and is very close to its star: It orbits him a number of Times within 8.5 days.
The newly discovered Planet has fewer than the 58-times the mass of the earth and is thus one of the Neptune-like planet. “We think that AU Mic b is far from the Stern and then to the inside hiked,” said Thomas Barclay, Co-author of the study. “This can happen if planet with signatures of a gas disk or other planets interact,” says Barclay more.
The most important data to Planet AU Mic b
Umkreister star:
AU Microscopii
orbital period:
8.5 days
weight:
less than 58 times that of the earth mass
category:
Neptune-like planet
Discovered by:
space-based telescopes, “TESS” and “Spitzer”
star AU Mic, and his Planet revealing planet formation
+ The newly discovered Planet AU Mic b (in the foreground) orbiting the star AU Mic. Artistic representation of the system is located approximately 32 light years from earth.©NASA’s Goddard Space Flight Center/Chris Smith (USRA)
The researchers compare AU Mic b with a different System in the vicinity: The star Beta Pictoris is bigger and hotter and is surrounded by two planets and a debris disc. Although the two systems are about the same age, the planet, Beta Pictoris orbit, significantly from the newly discovered planet AU Mic b . the Beta Pictoris b and c are both at least 50 Times larger than the sun and require several years to orbit its star Once.
“The Orbit of Beta Pictoris b do not seem to be hiked,” says Barclay. “The differences between these similar legacy systems can tell us a lot about how planets form and migrate.”
star AU Mic, and his Planet are a laboratory for planet formation
Now, after a first Planet has been discovered around the star AU Microscopii , the System as a kind of “laboratory”, the researchers use the emergence and development of the planet exactly can study. Because this is one of the big questions in astronomy: How solar systems and planets?
The space telescope “TESS” you could discover in the course of this year, a further planet around the star AU Mic . “There is another candidate in the TESS data,” explains study leader Peter Plavchan, in the hopes that the space telescope will later look at the year again in the direction of the system.
The Nasa space telescope “TESS” is launched in 2018, and has since discovered a number of exoplanets , including an earth-sized planet* and so-called “Super-earth”*. The space telescope “Spitzer” was turned off after 17 years in All, in January 2020, the Nasa final. (By Tanja Banner)
*fr.de is part of the nationwide Ippen-Digital-editor.
section list image:©NASA’s Goddard Space Flight Center/Chris Smith (USRA)
