Plans from disks of material rotating around young stars. But now it looks like dying binary stars can form planets, too.
When young stars coalesce out of a cloud of molecular hydrogen, a disk of leftover material called a protoplanetary disk surrounds them. This disk is where planets form, and astronomers are getting better at peering into those veiled environments and watching embryonic worlds take shape. But young stars aren’t the only stars with disks of raw material rotating around them.
” The first author is KU Leuven astronomer Jacques Kluska. The journal Astronomy and Astrophysics published the paper. There’s probably only one thing that can form in these disks: planets. Observations of the dying star strengthen the likelihood of the object being a planet. “In the evolved binary stars with a large cavity in the disc, we saw that heavy elements such as iron were very scarce on the surface of the dying star,” said Kluska. “This observation leads one to suspect that dust particles rich in these elements were trapped by a planet.
The star’s not finished yet. It experiences some thermal pulses and fuses some more hydrogen, and experiences some helium flashes. But the star has lost a lot of its mass by shedding it into space. If it has a binary partner, the material doesn’t go far. The binary pair will have a center of gravity, and the ejected material will form a circumbinary disk around the center.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Team USA Falls to Italy in Second Match of Mixed Doubles Curling CompetitionTeam USA’s Vicky Persinger and Chris Plys lost to Italy in their second match of mixed doubles curling at the 2022 Winter Olympics.
Consulte Mais informação »
Bode to Open Second Retail Store on Melrose in L.A.The shop will be located between La Brea and Highland and is close to other men's stores including Rick Owens.
Consulte Mais informação »
Amazon workers at second New York location move to unionize | EngadgetWorkers at LDJ5, an Amazon warehouse facility on New York's Staten Island, have filed a petition to unionize with the National Labor Relations Board..
Consulte Mais informação »
This 60-Second Stretch Relieves Back Pain While Strengthening Your Core | Livestrong.comThe windshield wiper with reach is the dynamic stretch you need to loosen a tight back and strengthen your abs. Do it every day to ditch lower back pain.
Consulte Mais informação »