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Planetenentstehung
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Planetenentstehung

Planeten entstehen aus Staub und Gas, die in einer Scheibe um einen jungen Stern rotieren. Stellen Sie sich unser Sonnensystem wie einen riesigen Wirbel vor: Die Sonne steht im Zentrum, und Staubkörner kollidieren darum herum. Sie ballen sich wie Schneebälle zusammen, um größere Körper zu bilden. In Sonnennähe ist es heiß, daher entstanden dort Gesteinswelten wie die Erde. Weiter draußen in der Kälte sammelten sich Gas und Eis an und schufen Riesen wie Jupiter. Dieser Prozess dauert Millionen von Jahren und verwandelt chaotische Trümmer in ein geordnetes System von Umlaufbahnen.
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Turbulence measured in the outer disk of HL Tauri reveals strong nonthermal motions
icon7. 4. 2026
iconSterne | Junge Sternobjekte | Planetenentstehu
Image: Turbulence measured in the outer disk of HL Tauri reveals strong nonthermal motions
HL Tauri is a young star surrounded by a protoplanetary disk with rings and gaps, where planets may be forming. Understanding turbulence in such disks is important because it affects how material moves and how planets grow. Until now, the strength of turbulence in the outer parts of these disks was not well known, especially in systems still gathering gas from their surroundings. Researchers used ALMA telescope data to study the disk around HL Tauri. They measured the width of a specific mole...
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Disk surrounding the binary star DX Chamaeleontis may orbit in reverse
icon23. 3. 2026
iconSterne | Exoplaneten | Planetenentstehung | Junge Sternobjekte
Image: Disk surrounding the binary star DX Chamaeleontis may orbit in reverse
A new study suggests the circumbinary disk around DX Cha orbits in reverse, challenging current models of star and planet formation in binary systems....
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JWST coronagraphy reveals background sources and disk extinction around HD 163296
icon21. 3. 2026
iconJames-Webb-Weltraumteleskop | Planetenentstehung | Sterne
Image: JWST coronagraphy reveals background sources and disk extinction around HD 163296
JWST coronagraphy of HD 163296 reveals background stars, providing new benchmarks for studying how its disk dims and reddens starlight....
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Dust traps create a crescent-shaped planet-forming disk around young star HD 163296
icon17. 3. 2026
iconSterne | Exoplaneten | ALMA | Planetenentstehu
Image: Dust traps create a crescent-shaped planet-forming disk around young star HD 163296
ALMA observations of HD 163296 reveal a crescent-shaped dust trap and matching gas motion, offering new clues about how planets form in protoplanetary disks....
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Vertical structure of the Beta Pictoris debris disk revealed across multiple wavelengths
icon5. 3. 2026
iconSterne | Planetenentstehung | Exoplaneten | Massereiche Hauptreihensterne
Image: Vertical structure of the Beta Pictoris debris disk revealed across multiple wavelengths
New research reveals that the β Pictoris debris disk is thicker in the mid-infrared than in the millimeter range, with warping and possible clumps linked to giant planets. These findings shed light on the disk's complex structure....
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