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RATAN-600The world's largest radio telescope with a 600-m reflector© Дарья Сокол, пресс-служба МФТИ -
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RATAN-600The world's largest radio telescope with a 600-m reflector© В. Малдер, 2019
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RATAN-600The world's largest radio telescope with a 600-m reflector© E. Азанов, 1987
Telescope
RATAN-600 is a radio telescope with a variable-profile circular antenna of 600 m in diameter, the largest Russian telescope, which performs mass measurements of galactic and extragalactic radio sources at frequencies of 1.2, 2.3, 4.7, 8.2, 11.2, and 22.3 GHz quasi-simultaneously (within 1-3 min). The main advantages of the instrument are high brightness-temperature sensitivity and multifrequency observations.
Daily Sun observations
The figure shows multiwave radio emission scans - graphs of the distribution of intensity I and circular polarization V across the solar disk, obtained with RATAN-600. The color scale on the right corresponds to 80 wavelengths in the range from 1.65 cm to 10 cm. The upper left hand corner shows the date and time of obtaining the radio data (available on the page with a detailed information). Polarized emission V characterizes the magnetic-field strength in solar active regions.
RATAN-600 multi-frequency catalogue of blazars
The online multi-frequency catalogue of blazars summarises RATAN-600 measurements of more than 1600 blazars.
Scientific results
Archive of materials
During the last 40─50 yr, the TeV blazar Ton 599 has systematically experienced major outbursts detected in a wide wavelength range from radio to γ-rays.
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Following the increased activity of the compact steep-spectrum quasar 3C 138 in the radio, optical and gamma-ray bands over the recent months (ATels #17539, #17540, #17461), we conducted a pointed X-ray observation of this object with the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory on 28-29 January, 2026, with a total duration of 23.3 hours.
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Quasiperiodic fast-propagating (QFP) waves excited by an impulsive, spatially localized velocity perturbation in a curved coronal loop are investigated with three-dimensional numerical simulations.
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Call for Proposals
Observational proposals are accepted via an interactive form twice a year: from February 1 to March 10 and from August 1 to September 10.