000002351 001__ 2351
000002351 005__ 20160701171704.0
000002351 037__ $$aASTROimport-508
000002351 100__ $$aPavlovski, K.
000002351 245__ $$aThe Disentangled Component Spectra of V578 Mon
000002351 260__ $$c2000
000002351 520__ $$aThe component spectra of the young (2 × 106 yr), eclipsing binary V578 Mon, member of the stellar cluster NGC 2244 in the Rosette Nebula, have been Fourier disentangled and analyzed in detail, using 12 composite spectra (S/N = 200) at different orbital phases. Temperatures, rotational velocities and abundances are determined for each component, while the gravity and other fundamental stellar parameters are derived with high precision from analysis of the light--curve and the radial velocities. V578 Mon consists of two massive early--B type components (14.5 + 10.3 Modot), well inside their critical Roche volume, which move in an eccentric orbit of 2.4 days. The secondary is marginally overluminous in comparison to a single star of its mass and age, while the position of the primary in the HR diagram is fully consistent with the evolutionary tracks for single stars. A search for indications of strong internal mixing in the secondary, e.g. due to motions induced by the proximity of the primary, was negative. No abundance excesses or large velocity fields were found. 
000002351 700__ $$a Hensberge, H.
000002351 773__ $$c109$$pIAU Symposium$$v200$$y2000
000002351 85642 $$ahttp://esoads.eso.org/abs/2000IAUS..200P.109P
000002351 905__ $$apublished in
000002351 980__ $$aNONREF