Curious spiral spotted by ALMA around red giant star R Sculptoris (data visualisation)
Observations using the Atacama Large Millimeter/submillimeter Array (ALMA) 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.
ALMA (ESO/NAOJ/NRAO)/M. Maercker et al.
About the Image
|Release date:||10 October 2012, 19:00|
|Size:||3600 x 2250 px|
About the Object
|Type:||• Milky Way : Star : Evolutionary Stage : Red Giant|
• Milky Way : Star : Type : Variable
• Milky Way : Star : Circumstellar Material
• X - Stars
|Distance:||1500 light years|
Colours & filters
ALMA Band 7
|870 μm||Atacama Large Millimeter/submillimeter Array|