Curious Spiral Spotted by ALMA Around Red Giant Star R Sculptoris (IMAGE)

ESO

Curious Spiral Spotted by ALMA Around Red Giant Star R Sculptoris

Caption

Observations using the Atacama Large Millimeter/submillimeter Array have revealed an unexpected spiral structure in the material around the old star R Sculptoris. 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.

Credit

ALMA (ESO/NAOJ/NRAO)

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.