Leeds: Massive Twin Star Snuggles Close to Its Stellar Sibling

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Leeds: Massive Twin Star Snuggles Close to Its Stellar Sibling

Post by bystander » Mon Mar 11, 2019 5:22 pm

Massive Twin Star Snuggles Close to Its Stellar Sibling
University of Leeds | 2019 Mar 11
Astronomers have discovered a binary star system with the closest high-mass young stellar objects ever measured, providing a valuable “laboratory” to test theories on high mass binary star formation.

An international team led by the University of Leeds has determined the distance between the massive young star PDS 27 and its orbiting stellar companion to be just 30 astronomical units away, or 4.5 billion km.

That is roughly the distance between our Sun and Neptune, making them the stellar companions with the closest proximity ever determined for young high mass stars in a binary system – a star system with two stars in orbit around a centre of mass. ...

Resolving the MYSO Binaries PDS 27 and PDS 37 with VLTI/PIONIER ~ E. Koumpia et al
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