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Affichage des articles dont le libellé est ASTRONOMY - Wolf-Rayet Star 124: Stellar Wind Machine. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - Wolf-Rayet Star 124: Stellar Wind Machine. Afficher tous les articles

03/02/2025

ASTRONOMY - Wolf-Rayet Star 124: Stellar Wind Machine

 2025 February 3

A starfield is shown with a large spherical nebula
in the center. The nebula shows a great deal of internal structure. 
Please see the explanation for more detailed information.

Wolf-Rayet Star 124: Stellar Wind Machine
Image Credit: Hubble Legacy ArchiveNASAESAProcessing & LicenseJudy Schmidt

Explanation: Some stars explode in slow motion. Rare, massive Wolf-Rayet stars are so tumultuous and hot that they are slowly disintegrating right before our telescopes. Glowing gas globs each typically over 30 times more massive than the Earth are being expelled by violent stellar winds. Wolf-Rayet star WR 124, visible near the featured image center and spanning six light years across, is thus creating the surrounding nebula known as M1-67. Details of why this star has been slowly blowing itself apart over the past 20,000 years remains a topic of research. WR 124 lies 15,000 light-years away towards the constellation of the Arrow (Sagitta). The fate of any given Wolf-Rayet star likely depends on how massive it is, but many are thought to end their lives with spectacular explosions such as supernovas or gamma-ray bursts.

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