000002582 001__ 2582
000002582 005__ 20160701171707.0
000002582 0247_ $$2DOI$$a10.1007/978-3-540-74745-1_9
000002582 037__ $$aASTROimport-739
000002582 100__ $$aLampens, P.
000002582 245__ $$aDG Leo: A Triple System with a Surprising Variety of Physical Phenomena
000002582 260__ $$c2008
000002582 520__ $$aDG Leo consists of three late A-type stars forming a hierarchic and spectroscopic triple system. Although all components have similar age and mass, in-depth spectroscopic analysis showed that the components nevertheless behave differently with respect to pulsation and to diffusion in their outer atmospheres. Inclusion of a speckle measure shortly after periastron passage allows to obtain a much improved orbital solution as well as a reliable dynamical parallax and systemic mass. The orbital parameters also suggest a possible coplanar configuration of both pairs. This object therefore represents a first-class opportunity to investigate the link between multiplicity, chemical composition and pulsation in a coeval system. 
000002582 700__ $$a Frémat, Y.
000002582 700__ $$a Hensberge, H.
000002582 700__ $$a Tamazian, V.
000002582 700__ $$a Docobo, J. A.
000002582 700__ $$a Balega, Y.
000002582 773__ $$c59$$pMultiple Stars Across the H-R Diagram$$y2008
000002582 85642 $$ahttp://esoads.eso.org/abs/2008msah.conf...59L
000002582 905__ $$apublished in
000002582 980__ $$aNONREF