SIMBAD references

2016AstBu..71..302R - Astrophys. Bull., 71, 302-313 (2016)

Results of magnetic field measurements of CP-stars performed with the 6-m telescope. III. Observations in 2009.

ROMANYUK I.I., SEMENKO E.A., KUDRYAVTSEV D.O. and MOISEEVA A.V.

Abstract (from CDS):

We present the results of measuring longitudinal magnetic fields ( B_e ), rotation velocities ( v_e sin i), and radial velocities ( V_r ) of 44 stars observed with the Main Stellar Spectrograph (MSS) of the 6-m BTA telescope of the Special Astrophysical Observatory in 2009. For the first time, magnetic fields were detected for the stars HD5441, HD199180, HD225627, and BD+00 4535. We show that for the same stars, the longitudinal fields B_e measured from the H_beta hydrogen line core and from metal lines can differ by 10% and up to a factor of 2-3. Except in rare cases, magnetic fields measured from the metal lines are stronger. We believe that this phenomenon is of a physical nature and depends on the magnetic field topology and the physical conditions inside a specific star. Observations of standard stars without magnetic fields confirm the absence of systematic errors capable of introducing distortions into the longitudinal-field measurement results. In this work we comment on the results for each of the stars.

Abstract Copyright:

Journal keyword(s): stars:magnetic field - stars:chemically peculiar

VizieR on-line data: <Available at CDS (J/other/AstBu/71.302): table3.dat>

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 44

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