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Updated: May 23, 2026

Bringing the Visible Universe into Focus with Robo-AO
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RR-Lyrae-type pulsations from a 0.26-solar-mass star in a binary system.

G Pietrzyński1, I B Thompson, W Gieren

  • 1Departamento de Astronomìa, Universidad de Concepción, Casilla 160-C, Concepciòn, Chile. pietrzyn@astrouw.edu.pl

Nature
|April 7, 2012
PubMed
Summary

A peculiar RR Lyrae star was found to be a low-mass object in an eclipsing binary system. This finding suggests that while rare, such binary systems can mimic true RR Lyrae stars, impacting stellar population studies.

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