Image: Curious spiral spotted by ALMA around red giant star R Sculptoris (data visualisation)

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Description: Observations using the Atacama Large Millimeter/submillimeter Array (ALMA) of the European Southern Observatory (ESO) have revealed an unexpected spiral structure in the material around the old star R Sculptoris in the constellation Sculptor. This feature has never been seen before and is probably caused by a hidden companion star orbiting the star. This slice through the new ALMA data reveals the shell around the star, which shows up as the outer circular ring, as well as a very clear spiral structure in the inner material.
Title: Curious spiral spotted by ALMA around red giant star R Sculptoris (data visualisation)
Credit: Of this image: www.eso.org/public/images/eso1239a Related images and videos: www.eso.org/public/news/eso1239
Author: ALMA (ESO/NAOJ/NRAO)
Usage Terms: Creative Commons Attribution 4.0
License: CC BY 4.0
License Link: http://creativecommons.org/licenses/by/4.0
Attribution Required?: Yes

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