March 29, 2022

The star V Hydrae and its rings seen by ALMA (Image ALMA (ESO/NAOJ/NRAO)/S. Dagnello (NRAO/AUI/NSF))

An article accepted for publication in “The Astrophysical Journal” reports the results of a study of the star V Hydrae that includes the discovery of a system of six rings that surround it and are expanding and two hourglass structures. A team led by Raghvendra Sahai of NASA’s JPL used the ALMA radio telescope and data collected with the Hubble Space Telescope to study the materials that were ejected by V Hydrae in the agony that will lead to its death. These observations can provide valuable information to better understand the processes taking place during a relatively short phase that for this reason is difficult to observe.