Cosmic mysteries and the hydrogen 21-cm line: bridging the gap with lunar observations

A Fialkov, T Gessey-Jones… - … Transactions of the …, 2024 - royalsocietypublishing.org
The hydrogen 21-cm signal is predicted to be the richest probe of the young Universe,
including those eras known as the cosmic Dark Ages, the Cosmic Dawn (when the first star …

A hybrid deep learning‐based forecasting model for the peak height of ionospheric F2 layer

Y Shi, C Yang, J Wang, Y Zheng, F Meng… - Space …, 2023 - Wiley Online Library
To achieve accurate forecasting of the peak height of the ionospheric F2 layer (hmF2), we
propose a hybrid deep learning model of improved seagull optimization algorithm (ISOA) …

[HTML][HTML] Fundamentals of numerical modeling of the mid-latitude ionosphere

G Jee - Journal of Astronomy and Space Sciences, 2023 - janss.kr
The ionosphere is one of the key components of the near-Earth's space environment and
has a practical consequence to the human society as a nearest region of the space …

Design and Development of Artificial Intelligence Enabled IoT Framework for Satellite Based Navigation Services

JRKK Dabbakuti, R Peesapati… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The advancement of Internet of Things (IoT)-based computing platforms opens novel
possibilities for exploring and leveraging global navigation satellite systems (GNSS). This …

Ionosphere Variability II: Advances in theory and modeling

I Tsagouri, DR Themens, A Belehaki, JS Shim… - Advances in Space …, 2023 - Elsevier
This paper aims to provide an overview on recent advances in ionospheric modeling
capabilities, with the emphasis in the efforts relevant to electron density variability. The …

[HTML][HTML] Longitudinal variations in equatorial ionospheric TEC from GPS, global ionosphere map and international reference ionosphere-2016 during the descending …

A Ogwala, OJ Oyedokun, O Ogunmodimu, AO Akala… - Universe, 2022 - mdpi.com
Research on longitudinal discrepancies in local ionospheric variability, especially in
equatorial and low-latitude regions, is a focal point of interest for the space weather …

Performance evaluation for vertical TEC predictions over the East Africa and South America: IRI-2016 and IRI-2020 versions

H Marew, A Agmas, T Mersha - Advances in Space Research, 2024 - Elsevier
In this paper, we evaluate and report the International Reference Ionosphere (IRI) model's
vertical Total Electron Content (TEC) regional profile. Diurnal, monthly, seasonal, and storm …

Gravitational wave search through electromagnetic telescopes

A Ito, K Kohri, K Nakayama - Progress of Theoretical and …, 2024 - academic.oup.com
We study the graviton–photon conversion in the magnetic fields of the Earth, the Milky Way,
and intergalactic regions. Requiring that the photon flux converted from gravitons does not …

Statistical models of the variability of plasma in the topside ionosphere: 2. Performance assessment

L Spogli, Y Jin, J Urbář, AG Wood… - Journal of Space …, 2024 - swsc-journal.org
Statistical models of the variability of plasma in the topside ionosphere based on the Swarm
data have been developed in the “Swarm Variability of Ionospheric Plasma”(Swarm-VIP) …

[HTML][HTML] An Updating of the IONORT Tool to Perform a High-Frequency Ionospheric Ray Tracing

M Pietrella, M Pezzopane, A Pignatelli, A Pignalberi… - Remote Sensing, 2023 - mdpi.com
This paper describes the main updates characterizing the new version of IONORT
(IONOsperic Ray Tracing), a software tool developed at Istituto Nazionale di Geofisica e …