HD 158450: A Magnetic Chemically Peculiar Star in a Young Stellar Group

N.A. Drake, E.G. Jilinski, V.G. Ortega, La Reza R. de, B. Bazzanella

Research output

Abstract

We report on the discovery of the Zeeman resolved spectral lines, corresponding to the very large magnetic field modulus [H] = 11.1 kG, in the spectrum of the chemically peculiar star HD 158450 belonging to the recently discovered Mamajek 2 stellar group. We determined fundamental parameters and projected rotation velocity of the star. Dynamical 3D mean orbit calculations showed that Mamajek 2 stellar group has an age of 135+-5 Myr. Based on this age, we estimate that HD 158450 has completed about 12% of its main-sequence life. The importance of the detailed study of HD 158450, a member of a stellar group with a well determined age, for understanding the origin and evolution of stellar magnetic fields is discussed.
Original languageUndefined
Title of host publicationOdessa Astronomical Publications
Pages35
Publication statusPublished - 2008

Cite this

Drake, N. A., Jilinski, E. G., Ortega, V. G., de, L. R. R., & Bazzanella, B. (2008). HD 158450: A Magnetic Chemically Peculiar Star in a Young Stellar Group. In Odessa Astronomical Publications (pp. 35)