000002600 001__ 2600
000002600 005__ 20160701171707.0
000002600 037__ $$aASTROimport-757
000002600 100__ $$aLampens, P.
000002600 245__ $$aSpectral disentangling and combined orbital solution for the Hyades binary Theta~2~Tau
000002600 260__ $$c2007
000002600 520__ $$aTheta~2~Tau is a detached, "single-lined" binary and the most massive resolved spectroscopic binary of the Hyades cluster. It also shows a complex pattern of pulsations of type Delta Scuti. Its eccentric orbit (e=0.7) has a periodicity of 140.7 days. Component~B is very difficult to detect spectroscopically. For this reason, the few radial velocities published in the literature are inaccurate. From recent high-resolution spectroscopic data obtained with the ELODIE spectrograph at the OHP (France), we derived accurate radial velocities for *both* components applying a spectral disentangling algorithm (by P. Hadrava, 1999). We then combined these measurements with available very-large baseline interferometric data in order to improve the knowledge of the orbital parameters and derived fundamental properties in a self-consistent way. Such determination is also very pertinent to revisit the evolutionary status of both components. 
000002600 700__ $$a Frémat, Y.
000002600 700__ $$a De Cat, P.
000002600 700__ $$a Hensberge, H.
000002600 773__ $$c213$$pBinary Stars as Critical Tools  Tests in Contemporary Astrophysics$$v240$$y2007
000002600 85642 $$ahttp://esoads.eso.org/abs/2007IAUS..240..213L
000002600 905__ $$apublished in
000002600 980__ $$aNONREF