Reference : Dynamical Spot Evolution in HD 11753

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/110835

Title :	Dynamical Spot Evolution in HD 11753
Language :	English
Author, co-author :	Korhonen, H. [European Southern Observatory, Garching bei München, Germany]
	Hubrig, S. [Astrophysikalisches Institut Potsdam, Potsdam, Germany]
	Briquet, Maryline [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie]
	González, J. F. [Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE), San Juan, Argentina]
	Savanov, I. [Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia]
Publication date :	2011
Main document title :	Magnetic Stars. Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, August 27- September 1, 2010, Eds: I. I. Romanyuk and D. O. Kudryavtsev
Pages :	435-439
Audience :	International
Keywords :	[en] Stars: atmospheres ; chemically peculiar ; early-type ; Magnetic fields ; Spots
Abstract :	[en] Our recent studies of HD 11753, a late B-type star showing a HgMn peculiarity for the first time revealed the presence of a fast dynamical evolution of chemical spots on the surface of this chemically peculiar early-type star. These observations suggest a hitherto unknown physical process operating in stars with outer radiative envelopes. Furthermore, we have also discovered existence of magnetic fields on HgMn stars that were up to now considered non-magnetic. Here we will discuss the dynamical spot evolution in HD 11753 in detail, and also summarize our new results on the magnetic fields of the AR Aur binary system.
Permalink :	http://hdl.handle.net/2268/110835
Other URL :	http://esoads.eso.org/abs/2011mast.conf..435K
Commentary :	ISBN: 978-5-7422-3156-1

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