We propose a project of a high-resolution (R= 100 000) fiber-fed spectrograph for
comprehensive studies of stellar atmospheres, exoplanet searches, asteroseismological …

Aims. We look for new regions to search for substellar objects. Methods. Two circular areas,
45 arcmin-radius each, centred on the young massive star systems Alnilam and Mintaka in …

We report on both high-precision photometry from the Microvariability and Oscillations of
Stars (MOST) space telescope and ground-based spectroscopy of the triple system δ Ori A …

Unusual fast spectral variability of gamma Cas – тема научной статьи по физике читайте
бесплатно текст научно-исследовательской работы в электронной библиотеке …

The results of high-resolution spectropolari metric observations (R= 60 000) of the B0. 5-type
subgiant ɛ PerA are reported. Regular components of line profile variations with the …

The results of ultrahigh-time-resolution (Δ T ∼ 12 s) observations of the B1 Iab supergiant ρ
Leo with the 1.25-m telescope at the Crimean Astronomical Station of the SAI MSU are …

The goal of the present study is the development and testing of a method for spectral
detection of the light of host stars reflected from their exoplanets. The presented method is …

The paper is devoted to the analysis of the variability of the Cas-type star HD 45995 in both
optical and X-ray ranges. The variability of the line profiles of HD 45995 has been detected …

This paper is devoted to studying the variability of the Cas variable star SAO 49725. We
analyze both the optical and X-ray spectra of the star. The line profile variability in the …

We observed the bright O6If (n) supergiant λ Cep in 1997 with the 6-m optical telescope of
the Special Astrophysical Observatory and in 2007 with the 1.8-m telescope of the …