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Magnetic chemically peculiar stars in the Orion OB1 association
Author(s) -
Romanyuk I. I.,
Semenko E. A.,
Yakunin I. A.,
Kudryavtsev D. O.,
Moiseeva A. V.
Publication year - 2017
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201713398
Subject(s) - stars , physics , t tauri star , astrophysics , k type main sequence star , telescope , astronomy
We discuss an ongoing project on the investigation of magnetic fields of chemically peculiar (CP) stars in the Orion OB1 association. More than 500 polarized spectra for 55 stars have been obtained with the Russian 6‐m telescope. We found eight new magnetic stars in addition to the 20 previously known. The frequency of Ap/Bp stars among normal A and B stars and the frequency of magnetic stars among all Ap/Bp stars decrease with age in the Orion OB1 association.