Scientists observe mysterious death of a star emitting six rings
Astrophysicists studying in unprecedented detail a red giant star named V Hydrae -- abbreviated as V Hya -- have witnessed the star's mysterious death throes.
Among these millions of stars, V Hya has been of particular interest to astronomers due to its unique behaviors and features, including extremely large eruptions of plasma that occur approximately every eight years and the presence of a nearly invisible companion star that contributes to V Hya's explosive behavior.
Raghvendra Sahai, an astronomer at JPL and the study's lead author, said the research indicates that previous assumptions about star deaths may be wrong. V Hya's final act also has produced an hourglass-shaped structure centered on the star and oriented perpendicularly to the disk. The two lobes of the hourglass have been shaped by a directed, fast wind that is blowing in two opposite directions at speeds up to 500,000 miles per hour.
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