286
Publications
822
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Astronomie
0 publication(s)
Astrophysique
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Cosmologie
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Sciences planétaires
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Sciences spatiales
1 publication(s)
Publications
286 publication(s) trouvée(s)
Article scientifique
Challenges to the Prohibition on Sovereignty in Outer Space - A New Frontier for Space Governance
The current space arena has changed significantly since the 1950s, when outer space activities commenced. At the time of the …
Article scientifique
Spots and Flares in Hot Main Sequence Stars Observed by Kepler, K2, and TESS
About 22,000 Kepler stars, 7,000 K2 stars, and nearly 60,000 TESS stars from sectors 1–24 have been classified according to …
Éditorial
NOTE FROM THE EDITOR
In the editorial of the first edition of 2020, I referred to the Spanish Flu, and the fact that we …
Article scientifique
Mechanical and Optical Design of the HIRAX Radio Telescope
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a planned interferometric radio telescope array that will ultimately consist of …
Article scientifique
MID-Radio Telescope, Single Pixel Feed Packages for the Square Kilometer Array: An Overview
The Square Kilometre Array (SKA) project is an international effort to build the world's largest radio telescope, enabling science with …
Article scientifique
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms
Intense geomagnetic storms offer opportunity to understand ionospheric response to space weather events. Using Total Electron Content (TEC) data from …
Article scientifique
Variations of the peak positions in the longitudinal profile of noon-time equatorial electrojet
Abstract In this study, the seasonal variations of the EEJ longitudinal profiles were examined based on the full CHAMP satellite …
Article scientifique
Modeling total electron content derived from radio occultation measurements by COSMIC satellites over the African region
Abstract. This study developed a model of total electron content (TEC) over the African region. The TEC data were obtained …
Article scientifique
The Hot Limit of Solar-like Oscillations From Kepler Photometry
Kepler short-cadence photometry of 2347 stars with effective temperatures in the range 6000 – 10000 K was used to search …
Article scientifique
Ionospheric irregularities and scintillations: a direct comparison of in situ density observations with ground-based L-band receivers
Abstract Ionospheric irregularities can affect satellite communication and navigation by causing scintillations of radio signals. The scintillations are routinely measured …
Éditorial
Editorial – Challenging Building Blocks: The coherence of cosmological evolution, life, consciousness, morality and building the 21st century
No abstract available.
Article scientifique
The building blocks and origins of life
The building blocks and origins of life have fascinated scientists since the earliest of times. What is required for life …
Article scientifique
Developing our Planetary Plan with an 18th United Nations Sustainable Development Goal: Space Environment
‘Planetary sustainability’, as developed in this article, is a transitory term, marking the conceptional change from perceiving the Earth as …
Article scientifique
Building the future in the 21st century: In conversation with Yuval Noah Harari
Yuval Noah Harari has proved himself to be one of the most prominent and accessible historians of the 21st century. …
Article scientifique
The dynamics of economic action and the problems of its social embedding – Ethical challenges in view of the nascent commercial use of outer space
As a result of the increasing economical exploitation of outer space, humanity faces a new challenge that, as well as …
Article scientifique
Comparison of quiet-time ionospheric total electron content from the IRI-2016 model and from gridded and station-level GPS observations
Abstract. Earth's ionosphere is an important medium of radio wave propagation in modern times. However, the effective use of the …
Article scientifique
Inter-hemispheric comparison of ionosphere variation at each latitudinal band during quiet geomagnetic condition.
This paper compares the quiet time variation of the Total Electron Content (TEC) over four stations located at high and …
Article scientifique
Significant Day-time Ionospheric Perturbation by Thunderstorms along the West African and Congo Sector of Equatorial Region
The equatorial Congo has been recognized as the most active lightning chimney region in the Globe. Although the perturbation of …
Article scientifique
Traits of sub-kilometre F-region irregularities as seen with the Swarm satellites
Abstract. During the night, in the F-region, equatorial ionospheric irregularities manifest as plasma depletions observed by satellites, and they may …
Article scientifique
Investigation of the relationship between the spatial gradient of total electron content (TEC) between two nearby stations and the occurrence of ionospheric irregularities
Abstract. The relation between the occurrence of ionospheric irregularities and the spatial gradient of total electron content (TEC) derived from …