Institution
Institute of Solar-Terrestrial Physics
Recent research
- Physics & SpaceOpen access
Problems of physics of Pc1 geomagnetic pulsations: On the 90th anniversary of discovery of pearls
“Pearl necklaces”, or simply “pearls”, are undoubtedly the true adomment of the rich diversity of ultra-low-frequency electromagnetic waves in Earth’s magnetosphere. They are noted for outstanding beauty of their form and the mystery of their origin. Pearls were first observed by...
- Physics & SpaceOpen access
The birefringent KCaII filter is ready for new observations
Spectral and filter observations in KCaII line play a crucial role in studying the structure and dynamics of chromospheric formations and in analyzing solar magnetism. However, most monochromatic filters for KCaII observations have a full width at half maximum (FWHM) 0.3–3 Å, whi...
- Engineering & TechnologyOpen access
Barker codes are widely used in incoherent scatter (IS) radars, particularly for tasks requiring a significant improvement in spatial resolution. However, sidelobes in the response structure of the correlation processing filter to the probing signal lead to a reduction in the inf...
- Engineering & TechnologyOpen access
Barker codes are widely used in incoherent scatter (IS) radars, particularly for tasks requiring a significant improvement in spatial resolution. However, sidelobes in the response structure of the correlation processing filter to the probing signal lead to a reduction in the inf...
- Physics & SpaceOpen access
The birefringent KCaII filter is ready for new observations
Spectral and filter observations in KCaII line play a crucial role in studying the structure and dynamics of chromospheric formations and in analyzing solar magnetism. However, most monochromatic filters for KCaII observations have a full width at half maximum (FWHM) 0.3–3 Å, whi...
- Physics & SpaceOpen access
Galactic cosmic rays (CRs) are charged energetic particle fluxes that penetrate interplanetary space. Under the influence of the geomagnetic field, charged cosmic ray particles change their trajectories. Some of these particles, with rigidity below the threshold value characteris...
- Physics & SpaceOpen access
HF Heating Effects as Seen From Below and Above: First Results of Joint SURA–Ionosfera‐M Experiment
Abstract This paper presents the first results of a coordinated experiment on the ionospheric plasma response to high‐frequency (HF) overdense heating, conducted using the SURA heating facility and the Ionosfera‐M satellite. The experiment combined ground‐based observations with...
- Physics & SpaceOpen access
Abstract We present a multiwavelength study of the long-duration gamma-ray burst GRB 230328B, combining prompt γ-ray observations with exceptionally early simultaneous optical photometry and extensive X-ray, radio, and host-galaxy follow-up. NUTTELA-TAO began simultaneous g′r′i′...