Magnetic fields in Herbig Ae/Be stars

Details Magnetic fields in Herbig Ae/Be stars Magnetic fields in Herbig Ae/Be stars

2007-01-09

arxiv.org/abs/astro-ph/0701249v1

Astronomy and Astrophysics

Astrophysics

12 pages, 7 figures. Accepted by the proceedings of the 2006 conference "Magnetic Stars" of the Special Astrophysical Observat

Scientific paper

Studies of stellar magnetism at the pre-main sequence phase can provide important new insights into the detailed physics of the late stages of star formation, and into the observed properties of main sequence stars. This is especially true at intermediate stellar masses, where magnetic fields are strong and globally organised, and therefore most amenable to direct study. This paper reviews recent high-precision spectropolarimetric observations of pre-main sequence Herbig Ae/Be stars, which are yielding qualitatively new information about intermediate-mass stars: the origin and evolution of their magnetic fields; the role of magnetic fields in generating their spectroscopic activity and in mediating accretion in their late formative stages; the factors influencing their rotational angular momentum; and the development and evolution of chemical peculiarity in their photospheres.

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