000002352 001__ 2352
000002352 005__ 20160701171704.0
000002352 037__ $$aASTROimport-509
000002352 100__ $$aPavlovski, K.
000002352 245__ $$aAn observational test of tidally induced mixing in a massive binary system
000002352 260__ $$c2000
000002352 520__ $$aA detailed study of the double-lined eclipsing binary V578 Mon belonging to the young open cluster NGC 2244 in the Rosette Nebula is undertaken. The physical properties and evolutionary status of the components are derived from the analysis of the new high-precision light curve and high-resolution echelle spectra secured at ESO. The individual spectra of both components are recovered by applying a novel Fourier disentangling technique. These spectra are then analyzed as if it were single star spectra, enabling to derive the temperature spectroscopically and to perform an abundance study for each component separately. The binary consists of two young early-B type stars (14.5 + 10.3 Modot), well inside their critical Roche volume. They move in an eccentric orbit (P = 2.4 d). The position of the primary in the HR diagram is fully consistent with the evolutionary tracks for single stars, but the secondary is slightly overluminous. Possible indications for strong internal mixing in the secondary, due to motions induced by the proximity of the primary, will be discussed in relation with the derived abundances. 
000002352 700__ $$a Hensberge, H.
000002352 773__ $$pIAU Joint Discussion$$v5$$y2000
000002352 85642 $$ahttp://esoads.eso.org/abs/2000IAUJD...5E..27P
000002352 905__ $$apublished in
000002352 980__ $$aNONREF