Explanation: What are those strange rings? Rich in dust, the rings are likely 3D shells -- but how they were created remains a topic of research. Where they were created is well known: in a binary star system that lies about 6,000 light years away toward the constellation of the Swan (Cygnus) -- a system dominated by the Wolf-Rayet star WR 140. Wolf-Rayet stars are massive, bright, and known for their tumultuous winds. They are also known for creating and dispersing heavy elements such as carbon which is a building block of interstellar dust. The other star in the binary is also bright and massive -- but not as active. The two great stars joust in an oblong orbit as they approach each other about every eight years. When at closest approach, the X-ray emission from the system increases, as, apparently, does the dust expelled into space -- creating another shell. The featured infrared image by the new Webb Space Telescope resolves greater details and more dust shells than ever before.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Публикации с ключевыми словами: Wolf-Rayet star - звезды Вольфа-Райе Публикации со словами: Wolf-Rayet star - звезды Вольфа-Райе
См. также: Шарплесс 308: туманность Голова Дельфина Кольцевая туманность вокруг WR 134 Шлем Тора Кольцевая туманность WR 134 Шарплесс 2-308: туманность Дельфин Звезда Вольфа-Райе WR 124 Сформированная звездным ветром туманность RCW 58 Все публикации на ту же тему >>