Search for possible connections between isolated radio pulsars and supernova remnantsAstrophysical Bulletin - Tập 67 - Trang 160-176 - 2012
E. G. Chmyreva, G. M. Beskin, A. V. Biryukov
We have developed a method of searching for the connections between the isolated radio pulsars and supernova remnants, based on the analysis of their kinematic characteristics. We investigate fairly young (τ
ch ≲ 106 yr) radio pulsars with known proper motions and estimated distances (dispersion measures), and supernova remnants located no more than 1–2 kpc away from them. Using a ...... hiện toàn bộ
Understanding the WMAP Cold Spot mysteryAstrophysical Bulletin - Tập 65 - Trang 101-120 - 2010
P. D. Naselsky, P. R. Christensen, P. Coles, O. V. Verkhodanov, D. I. Novikov, Ja. Kim
The Cold Spot (CS) at galactic coordinates (b = −57°, l = 209°) was discovered in the Wilkinson Microwave Anisotropy Probe (WMAP)data as a cosmic background anomaly. In order to assess the cosmological significance of the Spot, we examine its properties using the cluster analysis of the local extrema in the cosmic microwave background (CMB) signal. We also check the hypothesis that the CMB signal ...... hiện toàn bộ
Characteristics of the Flare Phenomenon in Blazar AO0235+164 in Gamma, Optical, and Radio BandsAstrophysical Bulletin - Tập 73 - Trang 293-297 - 2018
V. S. Bychkova, A. E. Volvach, L. N. Volvach, N. S. Kardashev, M. G. Larionov, V. V. Vlasyuk, O. I. Spiridonova, A. Lähteenmäki, M. Tornikoski, J. Tammi, E. Järvelä, R. J. C. Vera, W. Chamani, S. Enestam
The active core of the galaxy AO0235+164 is monitored in the optical and radio bands at millimeter wavelengths. Using the multifrequency data obtained in gamma, optical and radio bands, the characteristics of its radiation in the active phase of 2015–2016 are studied. The cross-correlation method was used to determine the delays of the 2015 flare that took place in AO0235+164 in different bands. T...... hiện toàn bộ
On the Magnetic Field Structure of Chemically Peculiar Star 53 CamAstrophysical Bulletin - Tập 77 - Trang 156-166 - 2022
I. I. Romanyuk, A. V. Moiseeva, D. O. Kudryavtsev, I. A. Yakunin, V. N. Aitov, D. N. Baklanova
Abstract—Based on our previous and recent magnetic field observations of a chemically peculiar star 53 Cam with the 6-m telescope and literary sources, we can make a conclusion that its magnetic field structure differs from a simple dipole. At the same time the results of measurements from hydrogen lines are described by a simple dipole model. However, data obtained from metallic lines (including ...... hiện toàn bộ
Radial velocity measurements with stellar spectrographs of the 6-m telescopeAstrophysical Bulletin - Tập 63 - Trang 386-394 - 2008
V. G. Klochkova, V. E. Panchuk, M. V. Yushkin, D. S. Nasonov
Solutions are considered that allow the accuracy of stellar radial velocity measurements with the spectroscopic instruments of the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences to be improved. The factors that limit the accuracy of spectroscopic V
r
measurements are analyzed both in general and ...... hiện toàn bộ
Peculiar motions of galaxy clusters in the regions of the Corona Borealis, Bootes, Z 5029/A 1424, A 1190, A 1750/A 1809 superclusters of galaxiesAstrophysical Bulletin - Tập 72 - Trang 363-375 - 2017
F. G. Kopylova, A. I. Kopylov
We present results of the study of peculiar motions of 57 clusters and groups of galaxies in the regions of the Corona Borealis (CrB), Bootes (Boo), Z5029/A1424, A1190, A1750/A1809 superclusters of galaxies and the galaxy clusters located beyond massive structures (0.05 < z < 0.10). Using the SDSS (Data Release 8) data, a sample of early-type galaxies was compiled in the systems under study, their...... hiện toàn bộ