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4 papers · 1 filter
Scandium: A key element for understanding Am stars
F. LeBlanc, G. Alecian
{\rm Context.} Atomic diffusion is believed to cause the abundance anomalies observed in AmFm stars. However, the detailed process has still not been well-established. For instance…
Search for vertical stratification of metals in atmospheres of blue horizontal-branch stars
V. R. Khalack, F. LeBlanc, B. B. Behr +2
The observed abundance peculiarities of many chemical species relative to the expected cluster metallicity in blue horizontal-branch (BHB) stars presumably appear as a result of at…
Vertical abundance stratification in the blue horizontal branch star HD135485
V. R. Khalack, F. LeBlanc, D. Bohlender +2
It is commonly believed that the observed overabundances of many chemical species relative to the expected cluster metallicity in blue horizontal branch (BHB) stars appear as a res…
Recovery of the global magnetic field configuration of 78 Virginis from Stokes IQUV line profiles
V. R. Khalack, G. A. Wade
The surface magnetic field configuration of the Ap star HD 118022 (78 Vir) has been reconstructed in the framework of the magnetic charge distribution (MCD) method from the analysi…