$\hat{I}´$ Circini: A massive hierarchical triple system with an eclipsing binary

J. Švrčková, P. Harmanec, R. Klement +6

$\hat{I}´$ Circini is known to be a massive multiple system containing a 3.9 d inner eclipsing binary in a slightly elliptical orbit exhibiting slow apsidal motion and a distant tertiary…