Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-22T23:26:14.828Z Has data issue: false hasContentIssue false
  • English
  • Français

Chemical spots and their dynamical evolution on HgMn stars

Published online by Cambridge University Press:  26 August 2011

Heidi Korhonen ,
Swetlana Hubrig ,
Maryline Briquet ,
Federico González  and
Igor Savanov
Heidi Korhonen
Affiliation:
European Southern Observatory, Karl-Schwarzschild-Str 2, D-85748, Garching bei München, Germany email: [email protected]
Swetlana Hubrig
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany
Maryline Briquet
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium
Federico González
Affiliation:
Instituto de Ciencias Astronomicas, de la Tierra, y del Espacio (ICATE), 5400 San Juan, Argentina
Igor Savanov
Affiliation:
Institute of Astronomy, Russian Academy of Sciences, Pyatnitskaya 48, Moscow 119017, Russia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Our recent studies of late B-type stars with HgMn peculiarity revealed for the first time the presence of fast dynamical evolution of chemical spots on their surfaces. These observations suggest a hitherto unknown physical process operating in the stars with radiative outer envelopes. Furthermore, we have also discovered existence of magnetic fields on these stars that have up to now been thought to be non-magnetic. Here we will discuss the dynamical spot evolution on HD 11753 and our new results on magnetic fields on AR Aur.

Keywords

Stars: atmosphereschemically peculiarearly-typemagnetic fieldsspots
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 116 - 120
Copyright
Copyright © International Astronomical Union 2011

References

Briquet, M., Korhonen, H., González, J. F., Hubrig, S., & Hackman, T. 2010, A&A, 511, A71Google Scholar
Dolk, L., Wahlgren, G. M., & Hubrig, S. 2003, A&A 402, 299Google Scholar
Hubrig, S., González, J. F., & Savanov, I., et al. 2006, MNRAS, 371, 1953CrossRefGoogle Scholar
Hubrig, S., Savanov, I. & Ilyin, I., et al. 2010, MNRAS, 408, L61CrossRefGoogle Scholar
Kochukhov, O., Adelman, S. J., Gulliver, A. F., & Piskunov, N. 2007, Nature Physics, 3, 526CrossRefGoogle Scholar
Korhonen, H., González, J. F., & Briquet, M., et al. 2010, A&A, in prep.Google Scholar
Mathys, G. 1994, A&AS, 108, 547Google Scholar
Savanov, I. S., Hubrig, S., González, J. F., Schóller, M. 2009, IAU Symp. 259, p. 401CrossRefGoogle Scholar