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29 March 2024
 
  » arxiv » astro-ph/0503628

 Article overview


Observational Studies of Early-type Binary Stars: MP Centauri
Dirk Terrell ; Ulisse Munari ; Tomaz Zwitter ; George Wolf ;
Date 29 Mar 2005
Journal Mon.Not.Roy.Astron.Soc. 360 (2005) 583-586
Subject astro-ph
AbstractWe present photometric and spectroscopic data on the early-type binary MP Centauri. The photometric data are analyzed simultaneously with radial velocities to derive preliminary absolute dimensions for the binary components. Analysis of the spectra shows that the stars rotate synchronously and that the line of sight to the system crosses two kinematically sharp and well-separated interstellar reddening sources. It is shown that MP Cen consists of a B3 primary with M_1 = 11.4 +/- 0.4 M_sun, R_1 = 7.7 +/- 0.1 R_sun and a lobe-filling B6-B7 secondary with M_2 = 4.4 +/- 0.2 M_sun, R_2 = 6.6 +/- 0.1 R_sun
Source arXiv, astro-ph/0503628
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