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dc.contributor.author
Hubrig, S.
dc.contributor.author
Gonzalez, Jorge Federico
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Ilyin, I.
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Korhonen, H.
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Savanov, I. S.
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Dall, T.
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Schöller, M.
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Cowley, C. R.
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Briquet, M.
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Arlt, R.
dc.date.available
2017-02-14T18:51:49Z
dc.date.issued
2011-12
dc.identifier.citation
Hubrig, S.; Gonzalez, Jorge Federico; Ilyin, I.; Korhonen, H.; Savanov, I. S.; et al.; Spectroscopic variability and magnetic fields of HgMn stars; Wiley Vch Verlag; Astronomische Nachrichten; 332; 9-10; 12-2011; 998-1007
dc.identifier.issn
0004-6337
dc.identifier.uri
http://hdl.handle.net/11336/12985
dc.description.abstract
The discovery of exotic abundances, chemical inhomogeneities, and weak magnetic fields on the surface of late B-type primaries in spectroscopic binaries has important implications not only for our understanding of the formation mechanisms of stars with Hg and Mn peculiarities themselves, but also for the general understanding of B-type star formation in binary systems. The origin of the abundance anomalies observed in late B-type stars with HgMn peculiarity is still poorly understood. The connection between HgMn peculiarity and membership in binary and multiple systems is supported by our observations during the last decade. The important result achieved in our studies of a large sample of HgMn stars is the finding that most HgMn stars exhibit spectral variability of various chemical elements, proving that the presence of an inhomogeneous distribution on the surface of these stars is a rather common characteristic and not a rare phenomenon. Further, in the studied systems, we found that all components are chemically peculiar with different abundance patterns. Generally, He and Si variable Bp stars possess large-scale organised magnetic fields that in many cases appear to occur essentially in the form of a single large dipole located close to the centre of the star. The presence of magnetic fields in the atmospheres of HgMn stars has been demonstrated in several studies. In addition to the measurements of longitudinal and quadratic magnetic fields, this work also showed evidence for a relative magnetic intensification of Fe II lines produced by different magnetic desaturations induced by different Zeeman-split components.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Vch Verlag
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Stars: Atmospheres
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Stars: Abundances
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Stars: Chemically Peculiar
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Stars: Magnetic Fields
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Techniques: Polarimetric
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Spectroscopic variability and magnetic fields of HgMn stars
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-13T20:29:57Z
dc.journal.volume
332
dc.journal.number
9-10
dc.journal.pagination
998-1007
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik Potsdam; Alemania
dc.description.fil
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
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Fil: Ilyin, I.. Leibniz-Institut für Astrophysik Potsdam; Alemania
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Fil: Korhonen, H.. University of Copenhagen; Dinamarca. University of Turku; Finlandia
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Fil: Savanov, I. S.. Russian Academy of Sciences; Rusia
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Fil: Dall, T. . European Southern Observatory; Alemania
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Fil: Schöller, M. . European Southern Observatory; Alemania
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Fil: Cowley, C. R. . University Of Michigan; Estados Unidos
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Fil: Briquet, M. . Katholieke Universiteit Leuven; Bélgica
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Fil: Arlt, R.. Leibniz-Institut für Astrophysik Potsdam; Alemania
dc.journal.title
Astronomische Nachrichten
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/asna.201111599/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1002/asna.201111599
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