18 citations · 39 across the 4 of their papers we have counts for
5 papers
HD 965: An extremely peculiar A star with an extremely long rotation period
G. Mathys, I. I. Romanyuk, S. Hubrig +4
Context. One of the keys to understanding the origin of the Ap stars and their significance in the general context of stellar astrophysics is the consideration of the most extreme…
Binary Stars in the Orion OB1 Association, Subgroup
E. A. Semenko, I. I. Romanyuk, I. A. Yakunin +2
A detailed spectroscopic survey of chemically peculiar (CP) stars in the Orion OB1 association is the most comprehensive observational program in the field of stellar magnetism tha…
The variation of the magnetic field of the Ap star HD~50169 over its 29 year rotation period
G. Mathys, I. I. Romanyuk, S. Hubrig +5
Context. The Ap stars that rotate extremely slowly, with periods of decades to centuries, represent one of the keys to the understanding of the processes leading to the differentia…
Search for stellar spots in field blue horizontal-branch stars
E. Paunzen, K. Bernhard, S. Huemmerich +3
Blue horizontal-branch stars are Population II objects which are burning helium in their core and possess a hydrogen-burning shell and radiative envelope. Because of their low rota…
Comprehensive study of the magnetic stars HD 5797 and HD 40711 with large chromium and iron overabundances
E. A. Semenko, I. A. Yakunin, E. Yu. Kuchaeva
We present the results of a comprehensive study of the chemically peculiar stars HD 5797 and HD 40711. The stars have the same effective temperature, Teff = 8900 K, and a similar c…