Results 181 to 190 of about 1,965,723 (227)

The Infrared Spectrum of Uranus Revealed with JWST

open access: yes
Roman M   +14 more
europepmc   +1 more source

Study of Solar Radiation on an All-Movable Radio Telescope

Journal of Astronomical Telescopes, Instruments, and Systems, 2021
To grasp the effect of nonuniform temperature field, the effects of a nonuniform sunshine temperature field on a large, all-movable radio telescope were analyzed in this study. Based on the overall parameters of a radio telescope model, first, several specific steps of the ray-casting algorithm were introduced for calculating sunlight shadows on radio ...
Y. Liu
exaly   +3 more sources

Some Results of Solar Radio Emission Observations at the Siberian Solar Radio Telescope

Astronomische Nachrichten, 1990
AbstractThis paper gives the main characteristics of the Siberian Solar Radio Telescope as well as some results derived by investigating the s‐component sources and radio bursts on the Sun using the SSRT.
Robert Sych, G Ya Smolkov
exaly   +3 more sources

A High-Speed FFT Based on a Six-Step Algorithm: Applied to a Radio Telescope for a Solar Radio Burst

2013 International Conference on Field-Programmable Technology (FPT), 2013
A radio telescope analyzes the radio frequency (RF) received from celestial objects. It consists of an antenna, a receiver, and a spectrometer. The spectrometer converts the time domain into the frequency domain with an FFT operation. A solar radio burst observation requires a high-speed FFT. This paper proposes a P parallel N point FFT for fixed point
Kazumasa Iwai   +2 more
exaly   +3 more sources

Ten-Antenna Prototype of a Radio Heliograph Based on the Siberian Solar Radio Telescope

Geomagnetism and Aeronomy, 2009
An upgrade of the Siberian Solar Radio Telescope (SSRT) [Smolkov et al., 1986; Grechnev et al., 2003] to a multiwave radio heliograph has been started. The radio heliograph being created will be designed mainly to measure coronal magnetic fields, to determine the locations of solar-flare energy release, and to investigate coronal mass ejections.
S. V. Lesovoy   +5 more
exaly   +3 more sources

Reliability of 1.8-meter solar radio telescope at Metsähovi Radio Observatory for long-term solar monitoring

Astrophysics and Space Science, 2015
Our aim is to prove that long time series of solar observations measured with Metsahovi Radio Observatory’s 1.8-meter solar radio telescope, RT-1.8, at 11.2 GHz are reliable, and that the data can be used for solar cyclicity studies. We give a detailed description of RT-1.8 and its calibration. We compare 14 years of Metsahovi Radio Observatory’s solar
Kallunki, Juha, Uunila, Minttu
semanticscholar   +4 more sources

The radio brightness distribution along the solar limb observed on the Siberian Solar Radio Telescope

Astronomy Reports, 2005
The radio brightness distribution at 5.2 cm has been obtained along the entire solar limb down to a level of 0.01 of brightness temperature at the disk center T0c during the solar minimum. The measurements are based on strip scans from the Siberian Solar Radio Telescope.
B. B. Krissinel
openaire   +2 more sources

Prospects for the solar radio telescope

1997
The Solar Radio Telescope (SRT) is an instrument concept for a powerful solar-dedicated radio telescope. As presently conceived. it would combine a high-resolution imaging capability (2″ at 20 GHz) with a broadband spectroscopic capability (0.3–26 GHz).
Timothy S. Bastian, Dale E. Gary
openaire   +2 more sources

Additive-correlation regime of operation of the siberian solar radio telescope

Radiophysics and Quantum Electronics, 1999
We describe a method for obtaining the two-dimensional image due to Earth’s rotation when performing observations using a cross interferometer. This method also allows us to record the one-dimensional distribution of radiobrightness to ensure high time resolution and is based on the serial recording of signals from each of the two linear ...
S. V. Lesovoy   +2 more
openaire   +2 more sources

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