Научные результаты

The ubiquity of recently discovered low-amplitude decayless kink oscillations of plasma loops allows for the seismological probing of the corona on a regular basis.  Читать далее →

Context. Rapidly decaying slow magnetoacoustic waves are regularly observed in the solar coronal structures, offering a promising tool for a seismological diagnostics of the coronal plasma, including its thermodynamical properties. Читать далее →

The paper presents the statistical data analysis of radio astronomic surveys in the sky region of a size of 177▭° at high galactic latitudes. We divided the region into four sectors equal in area and analyzed the observed properties of radio sources and the cosmic microwave background in each sector. Читать далее →

We continue the monitoring of microquasar GRS 1915+105 at 2.3, 4.8, 8.2, 11.2 and 22.3 GHz with the RATAN-600 radio telescope (see also ATEL #1509, #2899). Читать далее →

The results of observations of the blazar J1504+1029 (PKS 1502+106, OR 103), obtained in 2000-2018 on the RATAN-600 radio telescope of the Special Astrophysical Observatory at 2.3, 3.9 (4.7), 7.7 (8.2), 11.2, and 21.7 GHz and on the 32-m Zelenchuk and Badary radio telescopes of the Quasar-KVO complex of the Institute of Applied Astronomy of the Russian Academy of Sciences at 5.05 and 8.63 GHz are presented. Читать далее →

We present model fits to the X-ray line spectrum of the well-known high-mass X-ray binary Cyg X-3. The primary observational data set is a spectrum taken with the Chandra X-ray Observatory High Energy Transmission Grating in 2006, though we compare it to all the other observations of this source taken so far by this instrument. Читать далее →

We develope a method to compute the temperature and density structure along the line of sight by inversion of the differential emission measure (DEM), under the assumptions of stratification and hydrostatic equilibrium. Читать далее →

We present the results of RATAN-600 observations of a sample of strong ( S > 0.5 Jy) flatspectrum sources from the JVAS catalog at 10. ° 5-18° (J2000) declinations in 2015, 2016, and 2017 at the frequencies of 2.3, 4.7, 8.2, 11.2, and 21.7 GHz. We have obtained spectra of all 45 sources and isolated sources with significant variations. Читать далее →

В 2018 году на чувствительном радиометре 4.7 ГГц был впервые применен режим быстрой радиометрии с шагом дискретизации Читать далее →

20 марта 2015 г. произошло полное солнечное затмение, которое можно было наблюдать на севере Атлантического океана и в Арктике Читать далее →

Тесная рентгеновская двойная система c релятивистскими струями, в состав которой вероятно входит черная дыра, Лебедь X-3 была впервые обнаружена ... Читать далее →

Радиогалактика - это галактика, излучающая в радиодиапазоне необычно большое количество энергии... Читать далее →