Results 41 to 50 of about 2,143 (164)
Interaction of suprathermal solar wind electron fluxes with sheared whistler waves: fan instability [PDF]
Annales Geophysicae, 2003 Several in situ measurements performed in the solar wind evidenced that solar type III radio bursts were some-times associated with locally excited Langmuir waves, high-energy electron fluxes and low-frequency electrostatic and electromagnetic ...
C. Krafft, A. Volokitin
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Polarization in Low Frequency Radio Astronomy
, 2019 This chapter introduces the concepts of polarimetry in the case of low frequency radio astronomy. In this regime radio waves are usually not the signature of atomic or molecular transitions lines, but rather that of unstable particle distribution functions releasing their free energy through electromagnetic radiation.
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MONITORING OF REGULAR AND SPORADIC IONOSPHERIC VARIATIONS ON THE SINGLE-HOP HF RADIO PATHS [PDF]
Radio Physics and Radio Astronomy, 2018 Purpose: Diagnostics of regular and sporadic ionospheric variations using coherent systematic monitoring of spectral characteristics of the probe HF signals on the inclined singlehop radio paths.
A. I. Reznychenko +2 more
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RFI Cancellation for an Array Radio Astronomy System With Receiver Nonlinearity
IEEE Access, 2019 Radio frequency interference (RFI) is an important problem for a radio astronomy system (RAS) due to the very weak radio astronomical signals. Rapid expansions of active wireless systems (AWSs), as well as more demands for spectrum access by both AWS and
Mahmoud E. Abdelgelil, Hlaing Minn
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The Murchison Widefield Array Enters Adolescence: A Personal Review of the Early Years of Operations
GalaxiesThe Murchison Widefield Array (MWA) is a low frequency radio interferometer designed and developed by an international consortium, operated on behalf of the consortium by Curtin University.
Steven J. Tingay
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Directions for Space‐Based Low‐Frequency Radio Astronomy: 2. Telescopes [PDF]
Radio Science, 1997 Astronomical studies of celestial sources at low radio frequencies (0.3 to 30 MHz) lag far behind the investigations of celestial sources at high radio frequencies. In a companion paper [Basart et al., this issue] we discussed the need for low‐frequency investigations, and in this paper we discuss the telescopes required to make the observations. Radio
J. P. Basart +6 more
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The Astrophysical Journal Supplement SeriesWe analyze a catalog comprising 781,232 spectra from 641,095 M dwarf stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) low-resolution spectroscopic data release 9.
Wenjie Li +5 more
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Revealing the Spectral Properties of Magnetic Turbulence by Synchrotron Polarization Gradients
The Astrophysical JournalBased on the modern understanding of MHD turbulence theory, we propose a new method for measuring the spectral properties of magnetic turbulence by synchrotron polarization gradient analysis.
Jian-Fu Zhang, Zi-Qi Liu
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Pulsar Science with the SKA Observatory
The Open Journal of AstrophysicsThe large instantaneous sensitivity, a wide frequency coverage and flexible observation modes with large number of beams in the sky are the main features of the SKA observatory's two telescopes, the SKA-Low and the SKA-Mid, which are located on two ...
Bhal Chandra Joshi +3 more
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MULTIFUNCTIONAL DIGITAL RECEIVER-SPECTROMETER
Radio Physics and Radio Astronomy, 2014 A new two-channel digital receiver-spectrometer whose parameters and functional capabilities are optimized to provide its effective use in decameter telescopes, as well as in other systems where high precision and synchronization of measurements are ...
O. Y. Vasilyev +5 more
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