Investigation of the Magellanic eclipsing binary HV 2241

Details Investigation of the Magellanic eclipsing binary HV 2241 Investigation of the Magellanic eclipsing binary HV 2241

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...377..972o&link_type=abstract

Astronomy and Astrophysics, v.377, p.972-980 (2001)

Astronomy and Astrophysics

Astrophysics

8

Binaries: Eclipsing, Stars: Early-Type, Stars: Fundamental Parameters, Stars: Individual: Hv 2241

Scientific paper

We present a CCD V light curve of HV 2241, together with some observations in the B band. We analysed our photometric data jointly with previously published radial velocities by means of the Wilson-Devinney code, and derived new values for the physical parameters of this massive eclipsing binary system. We confirm that this system is semi-detached, with the secondary (less massive and less luminous component) filling its Roche-lobe. From our analysis, we estimate the following masses and radii for the components of HV 2241: M1= 36.2 +/- 0.7 Msun, R1=14.9 +/- 0.4 Rsun, M2=18.4 +/- 0.7 {M}sun and R_2=13.7 +/- 0.4 Rsun. We review the spectral classification analysing HST and IUE data and discuss the temperature and the reddening for this star.

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