'Like notes of a song': Astronomers discover rhythm akin beating of hearts among stars

A team of international astromers including researchers from University of Hawaii at Maa detected a distinctive rhythm of life for relatively young stellar bodies which were a mystery for scientists until w. scientists found a rhythm, like  beating of hearts, among  stars.

findings are an essential contribution to overall understanding of what goes on inside trillions of stars across cosmos. Institute for Astromy Assistant Professor Daniel Huber and School of Ocean and Earth Science and Techlogy Professor Eric Gaidos co-authored study recently published in science journal Nature.

" signals from se stars have been a mystery for over a hundred years. We knew that brightness variations in se stars are caused by sound waves traveling in ir interior, but we just couldn't make any sense of m," Huber said.

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'Like tes of a song finally falling into place'

international team at University of Sydney used data from NASA's Transiting Exoplanet Survey Satellite (TESS), a telescope used to detect planets around nearby stars. With use of telescope, team could identify and understand pulsation of 60 such stars, in dition to brightness measurements of thousands of stars.

"NASA's TESS data has delivered precise detections in a much larger number of se stars than we h before. This has w finally cleared up picture, and we were able to identify regular structures. It's like tes of a song finally falling into place to play a beautiful melody," Huber explained.

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stars analyzed in study are about 1.5 to 2.5 times more massive than Sun and are kwn as Delta Scuti stars.

"Young stars like se are among most intriguing and important objects in astromy. y allow us to see how stars and ir planets form and change with time much as solar system did more than 4 billion years ago. y are a window into our past," said Huber. Observations from W. M. Keck Observatory on Maunakea provided critical information during study to explain brightness variations of stars recorded by TESS.

(With ANI inputs)