92 citations · 177 across the 6 of their papers we have counts for
6 papers
Spectropolarimetry of Magnetic Chemically Peculiar Stars in the Orion OB1 Association
Eugene Semenko, Iosif Romanyuk, Ilya Yakunin +2
We summarise the results of a spectropolarimetric survey of 56 chemically peculiar (CP) stars in the association of Orion OB1. We uniformly collected the observational material wit…
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…
Abnormal lithium abundance in several Ap-Bp stars
A. Shavrina, N. S. Polosukhina, N. A. Drake +4
Using observations of rapidly rotating roAp star HD 12098, obtained with 6m telescope of SAO RAS in 2005-2008 in nine rotational phases (0.001-0.817), and code V. Tsymbal ROTATE we…
The extraordinary complex magnetic field of the helium-strong star HD 37776
Oleg Kochukhov, Andreas Lundin, Iosif Romanyuk +1
The early-type chemically peculiar stars often show strong magnetic fields on their surfaces. These magnetic topologies are organized on large scales and are believed to be close t…
HD 178892 - a cool Ap star with extremely strong magnetic field
T. Ryabchikova, O. Kochukhov, D. Kudryavtsev +6
We report a discovery of the Zeeman resolved spectral lines, corresponding to the extremely large magnetic field modulus <Bs>=17.5 kG, in the cool Ap star HD 178892. The mean longi…
Inhomogeneous distribution of mercury on the surfaces of rapidly rotating HgMn stars
O. Kochukhov, N. Piskunov, M. Sachkov +1
Starspots are usually associated with the action of magnetic fields at the stellar surfaces. However, recently an inhomogeneous chemical distribution of mercury was found for the m…