Search Publications
On discovery of strong magnetic field in the binary system HD34736
Romanyuk, I. I.; Semenko, E. A.; Yakunin, I. A. +1 more
We present the results of a study of the star HD34736. The spectropolarimetric observations carried out at the 6-m telescope showed the presence of a strong variable longitudinal magnetic field, exceeding ‑4500 G. The analysis of the Hipparcos photometry gives a set of possible periods of the brightness variability of the star, of which
Physical and geometrical parameters of the binary system gliese 150.2
Al-Wardat, M. A.; Balega, Yu. Yu.; Leushin, V. V. +4 more
The speckle interferometric binary system Gl 150.2 (HIP17491) is analyzed using atmosphere modeling and dynamical analysis simultaneously. A synthetic spectral energy distribution (SED) for each of the two components of the system is built using Kurucz blanketed models. These SEDs are combined together to form the total flux, which is compared wit…
Comparison of low-harmonics spectra and maps according to the WMAP and Planck space missions
Verkhodanov, O. V.
We present a comparison of the angular power spectra and maps represented by the WMAP and Planck mission teams. The spectra are compared in the the multi pole range (2 ≤ ℓ ≤ 50). The ℓ =5, 7, 13, 29, 37, 41–46 harmonics have a discrepancy in the angular power spectra. The maps of the microwave background and their phase characteristics are studied…
Two-dimensional spectral estimators of statistical anisotropy and search for the isolated directions in Planck mission data
Verkhodanov, O. V.; Naiden, Ya. V.
We describe a method for the analysis of homogeneity of the microwave background maps based on the behavior of the angular power spectrum C(ℓ) and parity parameter P. The estimator is built using the dispersion variation of the power spectrum of the background signal hemisphere and allows to visualize the statistical anisotropy as a new map which …